Abstract:
A method for accurately determining fuel efficiency in diesel engines of vehicles, as they exist on the job. In determining the efficiency, work done by the vehicle in combination with accurately measured fuel consumption enables calculation of the fuel efficiency of the vehicle. The method of the invention is of use in determining a baseline fuel efficiency for use in evaluating the effectiveness of fuel efficiency related improvements to the engine or vehicle. Following making the improvements, additional fuel efficiency tests using the method of the invention are carried out for comparing the new fuel efficiency with the baseline fuel efficiency. In some applications GPS systems are used for determining work done by the vehicle.

Description:
This application claims priority of U.S. Provisional Application No. 61/208,943 filed Mar. 2, 2009. 
    
    
     FIELD OF THE INVENTION 
     The present invention is concerned with providing an accurate measurement of fuel consumption and exhaust emissions in diesel powered vehicles, as they exist on the job. Diesel powered vehicles having both mechanical drive systems and electrical drive systems are of concern. 
     BACKGROUND OF THE INVENTION 
     Improving the fuel efficiency of diesel engines, used in machinery of all types, can result in substantial saving in fuel costs for the operator. Known fuel efficiency tests conducted in the field relate fuel consumption and emissions to Units of Time or Distance (i.e. gallon/hour or miles/gallon), rather than gallons/horsepower or gallons/kilowatt hour. However, tests conducted that are based on actual delivered horsepower eliminate many of the variables, that when unaccounted for, negatively impact the accuracy of results. For example, in determining the fuel efficiency of a diesel engine in a towboat, the variables might be wind, water current, etc. 
     OBJECT OF THE INVENTION 
     The objective of the present invention is to provide an accurate measurement of fuel consumption and exhaust emissions in relation to both the power available to do work as well as, in some instances, the amount of “work done” in diesel powered vehicles, as they exist on the job. To this end, a method of measuring, collecting and logging data associated with the actual power available to do work as well as the actual work done are disclosed. Both the accurately measured power available and work done are then correlated to the amount of fuel consumed, as well as the emissions produced, during the same period of time. 
     The present method of testing is especially valuable when a baseline test is conducted and later verification or comparison tests are performed. Typically, in an effort to improve fuel efficiency, a change is made to the diesel engine after baseline data is established. These changes might be of mechanical settings within the engine, grades of fuel, fuel additives or treatments, oil treatments, etc. The comparison of results, from one test to the next, identifies the impact of the changes made, with extreme accuracy. The present test methods accomplish this by correlating the power available to do work or actual work done, to fuel consumption and emissions. The present method minimizes many of the variables that reduce the accuracy of known comparison tests, based upon time or distance, and the inconsistent results they typically provide. 
     SUMMARY OF THE INVENTION 
     The present invention is a method for determining efficiency of fuel consumption in an internal combustion engine powered vehicle, by measuring RPM&#39;s of a drive shaft of the vehicle every X second for a period of Y seconds and determining an average RPM; measuring a torque value of the drive shaft of the vehicle every X seconds for a period of Y seconds and determining an average torque; measuring fuel consumption of the engine every X second for a period of Y seconds and determining an average fuel consumption; and calculating a horsepower of the drive shaft of the vehicle as ((average torque)(average RPM))/(5252)=(HP), and calculating efficiency of fuel consumption as (average fuel consumption)/(HP). 
     A second embodiment of the invention is a method for determining efficiency of fuel consumption in an internal combustion engine powered vehicle operating at a constant gross weight, by 1) measuring the vehicle&#39;s speed, direction of movement and elevation change every X second for a period of Y seconds with use of a GPS tracking software system; 2) calculating work done over the Y seconds with use of measurements obtained in step 1) and a gross weight of the vehicle; 3) measuring fuel consumption of the engine every X second for a period of Y seconds and determining an average fuel consumption; and 4) calculating fuel consumption efficiency based on work done over the period of Y seconds divided by the average fuel consumption by the engine over the period of Y seconds. 
     A third embodiment of the invention is a method for determining efficiency of fuel consumption in an internal combustion engine powered vehicle, during operation of the vehicle within a site to excavate material from the site, wherein the vehicle has a base weight and material from the site loaded and unloaded on the vehicle varies a gross weight and resistive load of the vehicle, by 1) measuring the vehicle&#39;s speed, direction of movement and elevation change every X second for a period of Y seconds with use of a GPS tracking software system; 2) calculating a first work done with use of measurements obtained in step 1) and the vehicle&#39;s base weight; 3) measuring fuel consumption of the engine every second for a period of Y seconds and determining an average fuel consumption; 4) repeating steps 1-3 over a total test period; 5) measuring the volume of material excavated from the site over the total test period with use of a GPS image scanning software system; 6) calculating a second work done with use of measurements obtained in step 5) along with a density value of the material; and 7) calculating fuel consumption efficiency based on the sum of the first work done and second work done over the total test period divided by the fuel consumption by the engine over the total test period. 
    
    
     DESCRIPTION OF THE INVENTION 
     The field testing methods of the present invention are performed on internal combustion engines, such as diesel powered vehicles which utilize both mechanical drive systems and electrical drive systems. In a mechanical drive system, the measurement of one of the parameters for determining work done is accomplished by installing a strain gage on a drive shaft or in the case of a boat, on a propeller shaft of the boat. The “strain” or “flex” of the driveshaft is measured many times each second, and the resulting data is collected and transmitted with use of a rotating transmitter attached to the driveshaft or propeller shaft. A receiver is used to collect the signal from the transmitter transmitting the data from the strain gage. These measurements are averaged over a period of time, preferably one second, and then converted to a torque value each second, for example. Also, an optical sensor is installed on the drive shaft or propeller shaft and the instantaneous RPM (rotation per minute) is measured many times each second and averaged over a period of preferably one second. The torque value data and the RPM data are used to calculate horsepower, also preferably each second. 
     Fuel consumption data is simultaneously collected from two positive displacement flow meters and averaged each second. Fuel measurement precision is enhanced by temperature measurement of the fuel upon entrance to each flow meter. This measurement is reported to the datalogger, preferably each second. These values are the basis for application of a correction factor (volumetric change/degree Fahrenheit) for differences in fuel temperature at the time of measurement with use of the positive displacement flow meters. The calculation is applied post process with use of a spreadsheet. Shown below in Table 2 are measurements of fuel flow and fuel temperature for use in obtaining the precise fuel usage. 
     In a diesel engine utilizing an electrical drive system, application of the measurement of work done is carried out by utilizing an electrical power logger. The electrical power logger is connected to wiring of a final drive or drives of the particular vehicle being evaluated. The power data collected at this point is an electric current and electric voltage measurement, which are used to calculate kilowatts (KW) of energy, preferably each second. This data is collected in a datalogger and matched to the fuel consumption data for the same period of time. The efficiency is calculated and expressed as fuel consumption divided by kilowatts. 
     With both test systems, mechanical and electrical, fuel and emission data are compared to actual work done. Work done can be used to obtain production efficiency (average overall efficiency) for different diesel powered vehicles and their specific applications. 
     Preparation for the evaluation of exhaust emission involves the installation of a pipe fitting into each of the exhaust stacks if two engines are providing power to a vehicle. It is necessary to insert the pipe fittings at a location that is approximately the same distance downstream from the turbocharger of the diesel engines. The fitting accommodates the insertion of an emission probe into the exhaust stream. Both gaseous and soot/oil trace (particulate matter (PM)) samples are drawn through the probes by an ECOM (Ecom America, Ltd.—Gainesville, Ga.) Model # J2KN s/n 2026-OCNX emission test unit. The gases sampled are CO, CO 2 , NO, NO 2 , NO x  and O 2 . The soot/oil trace (PM) sample is analyzed in two ways, one by a “Dot” method, discussed below, and the other by a tare weight method. The data collected from each exhaust stream, from each of the engines, is recorded. The values from each engine are averaged over a period of time, preferably a one second period and reported. 
     Following is an example of a test using the method of the present invention. 
     EXAMPLE 1 
     The method of the first embodiment of the present invention is demonstrated in the following experiment conducted on a marine vessel. A baseline portion of a comparison test was performed on a tow boat. A description of the study, as well as a presentation of a summary of the data collected, is provided below. 
     The marine vessel was fully fueled and fully loaded with a 15 barge tow. Each barge was typically loaded with coal at a loading terminal, immediately prior to the test. In a loaded condition, the vessel proceeded upstream until 900 engine RPM (full throttle) and constant vessel speed was achieved. At that time data logging commenced to include sufficient data to analyze recordings made at 1, 5, and 10 minutes from the start of the test. Straight rudder position was used throughout the test. The conditions were easily duplicated for a comparison test. 
     Twin diesel engines provided the propulsion for the vessel, a starboard engine and a port engine. 
     The data collected in the test reflected the fuel necessary to generate the horsepower delivered to the propulsion wheels each second. Exhaust emissions, both gaseous and soot/oil trace (PM), were also measured. 
     In preparation for each test, two AW-Lake (AW-Lake Co.—Franksville, Wis.) positive displacement flow meters, model # JVA-30 KG were installed on each engine (for large engines model # JVA-60 KG is used). One flow meter was installed in the fuel supply line and the other flow meter was installed in the fuel return line to the fuel tank. 
     The fuel flow data was measured many times each second and averaged for each second in a Monarch (Monarch Instrument,—Amherst, N.H.) Model # DC-6000 Data Chart s/n B6000177 datalogger. The difference between the two sets of data collected each second for the flow meters was processed and stored. The difference represented the fuel consumption, for that second, expressed in gallons per minute (GPM) for each engine. 
     An independent power source was used to power all the instruments used in the testing. Such independent power eliminated any compromise of data due to electrical power fluctuations supplied to the instruments. A Honda portable gasoline 1000 Watt generator having computer current stabilized/regulated was used. 
     The preparation for the evaluation of exhaust emissions involved the installation of two pipe fittings, into each of the exhaust stacks. It was necessary to insert the two pipe fittings at a location that was approximately the same distance downstream from each turbocharger of the diesel engines. The fittings accommodated the insertion of emission probes into each exhaust stream. Both gaseous and soot/oil trace (particulate matter) samples were drawn through the probes by an the ECOM Model # J2KN s/n 2026-OCNX emission test unit, mentioned above. The gases sampled were CO, CO 2 , NO, NO 2 , NO x  and O 2 . The soot/oil trace (PM) sample was analyzed in two ways, one by the Dot method and the other by the tare weight method. The data collected from each exhaust stream, from each of the engines, was recorded. The values from each engine were also averaged over a one second period and reported. 
     The Soot/Oil Trace (PM) analysis was processed by two different methods. Both methods required installation of a sample filter paper in the emission probes for data collection. One method was a “Dot” method. This method utilizes a color comparison utilizing a graydot/Bacharach Test The other method included weighing the filter paper before and after the soot/oil trace (PM) was deposited on it. Special care was taken to stabilize the temperature and moisture content of the samples for weighing. The weighing was carried out by a Mettler-Toledo (Mettler-Toledo, Inc.—Columbus, Ohio) Model # AX205DR s/n 1125442082 Semi-Micro Balance. The difference of the before and after weighing or “Tare”, was reported in parts of a gram. This represented the weight of the material deposited on the filter paper when exactly 1.62 liters of exhaust gas was drawn through it, by the ECOM J2KN Emission Analyzer, mentioned above. 
     Preparation for measuring the work done consisted of installing a Vishay (Vishay Intertechnology, Inc.—Malvern, Pa.) strain gage on each propeller shaft, between the gearbox and the propulsion wheel. A Binsfeld (Binsfeld Engineering, Inc.—Maple City, Mich.) TorqueTrak 10K Torque Telemetry System was utilized to gather and transmit torque data. The information from the strain gage was collected and transmitted via a transmitter which was installed on each propeller shaft. Each transmitter sent respective data on a different frequency and was matched to the frequency of each receiver. The data was displayed and exported to the datalogger, a plurality of times each second. The datalogger averaged and recorded the information each second. 
     The torque value for a drive shaft or propeller shaft is determined with use of a strain value, obtained with use of the strain gage, and information about the shaft. Having dimensional values of the shaft and knowing the material of the shaft, the torque of the shaft can be calculated with use of the TorqueTrak torque telemetry system, mentioned above. A torque sensitive stain gage and a transmitter are mounted on the shaft of the engine to be tested and measurements of the shaft OD and shaft ID (if hollow shaft) are obtained along with the material of the shaft. A transmission from the transmitter is received by a receiver and input into a computer having the TorqueTrak software for determining the torque of the shaft. It is necessary to input the shaft OD and ID, the modulus of elasticity and Poisson ratio of the material of the shaft and a “gage factor” which is dependent on the particular torque sensitive strain gage mounted on the shaft. The TorqueTrak software reports out the torque each selected period of time, which is exported to the datalogger, where it is matched with RPM data for the same period of time. 
     For determining the RPM of the shafts Monarch optical sensors (Monarch Instrument, Amherst, N.H.) are installed on each shaft. Shaft RPM is measured by the sensors many times each second and the data is exported to the datalogger where it is averaged and recorded each second. 
     The torque data and RPM data were merged and processed together in the datalogger to provide the respective horsepower delivered by each shaft each second. The horsepower data each second was then merged with the fuel consumption data for each second, in the datalogger. This provided the “efficiency number” which is expressed in GPM of fuel per horsepower actually delivered to each propulsion wheel of the towboat. The horsepower, fuel consumption, and emission data, for starboard and port propulsion systems, were merged to provide results for the vessel as a whole. 
     Following in Table 1 is test data and in Table 2 is the test summary. In the test summary, the propeller shaft HP is calculated as propeller shaft torque times propeller shaft RPM divided by 5252. The efficiency is calculated as fuel consumption divided by propeller shaft HP. Values measured include a “current velocity” of the water in the test area which is obtained with use of a float device having a GPS “rover unit” mounted on it. Use of the GPS tracking software used with the device is discussed below. The fuel efficiency is expressed in GPM/HP/1000. 
     
       
         
               
             
               
               
               
               
               
               
               
               
               
               
               
               
               
             
               
               
               
               
               
               
               
               
               
               
               
               
               
               
             
               
               
               
               
               
               
               
               
               
               
               
             
               
               
               
               
               
               
               
               
               
               
               
               
             
               
               
               
               
               
               
               
               
               
               
               
               
               
             
               
               
               
               
               
               
               
             
               
               
               
               
               
               
               
               
             
               
               
               
               
               
               
               
               
               
               
             
               
               
               
               
               
               
               
               
               
               
               
             
           
               
                 TABLE 1 
               
               
                   
               
               
                 SAMPLE DATA 
               
               
                   
               
             
             
               
                   
               
             
          
           
               
                   
                   
                   
                   
                   
                   
                   
                 Engine 1 
                 ENG 1 
                   
                   
                   
                   
               
             
          
           
               
                 Item 
                 Chan1 
                 Chan2 
                 Chan3 
                 Chan4 
                 Chan5 
                 Chan6 
                 H.P. 
                 Fuel in Mod 
                 fuel out E 
                 ENG 1 
                 E#1 Eff 
                 Chan7 
                 Chan8 
               
               
                 Chan Tag 
                 Shaft 1 
                 Torque 1 
                 Flow 1 
                 Flow 2 
                 F. Temp 1 
                 F. Temp 2 
                 c1*c2/ 
                 C3*(1 + (75 −  
                 C4*(1 + (75 − 
                 G.P.M. MOD 
                 GPM/HP 
                 Shaft 2 
                 Torque 2 
               
               
                 Eng. Unit 
                 RPM&#39;s 
                 ft./lbs 
                 GPM&#39;s 
                 GPM&#39;s 
                 Deg. F. 
                 Deg. F. 
                 5252 
                 F6)*0.00046) 
                 F6)*0.00046) 
                 MC2-MC3 
                 MC4/MC1 
                 RPM&#39;s 
                 ft./lbs 
               
               
                 Time 
                 Chan1 
                 Chan2 
                 Chan3 
                 Chan4 
                 Chan5 
                 Chan6 
                 MC1 
                 MC2 
                 MC3 
                 MC4 
                 MC5 
                 Chan7 
                 Chan8 
               
               
                   
               
               
                 Oct. 06, 2009 1:27:23 PM 
                 292.7299 
                 2209.783 
                 0.3647 
                 0.28 
                 68.3858 
                 142.7518 
                 123.1663 
                 0.365809611 
                 0.271273568 
                 0.09453604 
                 0.000768 
                 278.9495 
                 1737.907 
               
               
                 Oct. 06, 2009 1:27:24 PM 
                 293.1805 
                 2219.464 
                 0.3639 
                 0.2817 
                 68.3858 
                 142.6487 
                 123.8963 
                 0.365007177 
                 0.272933946 
                 0.09207323 
                 0.000743 
                 278.9542 
                 1739.396 
               
               
                 Oct. 06, 2009 1:27:25 PM 
                 292.6746 
                 2217.01 
                 0.3669 
                 0.2806 
                 68.3686 
                 142.5114 
                 123.5458 
                 0.368019208 
                 0.271885899 
                 0.09613331 
                 0.000778 
                 279.0376 
                 1740.087 
               
               
                 Oct. 06, 2009 1:27:26 PM 
                 292.6463 
                 2213.24 
                 0.3667 
                 0.2853 
                 68.3514 
                 142.3569 
                 123.3238 
                 0.367821499 
                 0.276460215 
                 0.09136128 
                 0.000741 
                 278.9492 
                 1747.84 
               
               
                 Oct. 06, 2009 1:27:27 PM 
                 293.2499 
                 2220.409 
                 0.3621 
                 0.2814 
                 68.4201 
                 142.1853 
                 123.9784 
                 0.363195988 
                 0.272703266 
                 0.09049272 
                 0.000730 
                 278.8545 
                 1746.893 
               
               
                 Oct. 06, 2009 1:27:28 PM 
                 293.493 
                 2213.984 
                 0.3617 
                 0.2815 
                 68.3514 
                 142.0651 
                 123.7222 
                 0.362806207 
                 0.27281574 
                 0.08999047 
                 0.000727 
                 278.8069 
                 1759.83 
               
               
                 Oct. 06, 2009 1:27:29 PM 
                 293.4689 
                 2202.042 
                 0.3598 
                 0.2796 
                 68.3858 
                 141.9277 
                 123.0447 
                 0.360894703 
                 0.270992027 
                 0.08990268 
                 0.000731 
                 279.0482 
                 1767.374 
               
               
                 Oct. 06, 2009 1:27:30 PM 
                 293.6343 
                 2180.769 
                 0.3571 
                 0.276 
                 68.3858 
                 141.7561 
                 121.9247 
                 0.358186488 
                 0.267524646 
                 0.09066184 
                 0.000744 
                 278.075 
                 1762.805 
               
               
                 Oct. 06, 2009 1:27:31 PM 
                 293.8118 
                 2170.914 
                 0.3549 
                 0.2795 
                 68.3686 
                 141.5329 
                 121.4471 
                 0.355982603 
                 0.270945865 
                 0.08503674 
                 0.000700 
                 278.6231 
                 1774.569 
               
               
                 Oct. 06, 2009 1:27:32 PM 
                 293.5699 
                 2161.15 
                 0.3582 
                 0.2745 
                 68.3858 
                 141.4471 
                 120.8013 
                 0.359289835 
                 0.266109725 
                 0.09318011 
                 0.000771 
                 278.1028 
                 1798.334 
               
               
                 Oct. 06, 2009 1:27:33 PM 
                 293.2589 
                 2145.458 
                 0.3594 
                 0.2745 
                 68.4544 
                 141.2754 
                 119.7972 
                 0.360482145 
                 0.266131405 
                 0.09435074 
                 0.000788 
                 277.5901 
                 1805.208 
               
               
                 Oct. 06, 2009 1:27:34 PM 
                 294.13 
                 2112.75 
                 0.3511 
                 0.276 
                 68.3686 
                 141.2067 
                 118.3212 
                 0.352171011 
                 0.267594397 
                 0.08457661 
                 0.000715 
                 277.2416 
                 1817.211 
               
               
                 Oct. 06, 2009 1:27:35 PM 
                 293.8568 
                 2090.86 
                 0.3488 
                 0.2729 
                 68.3686 
                 140.9664 
                 116.9866 
                 0.349863995 
                 0.264618974 
                 0.08524502 
                 0.000729 
                 276.8552 
                 1831.833 
               
               
                 Oct. 06, 2009 1:27:36 PM 
                 294.8255 
                 2107.848 
                 0.3455 
                 0.2719 
                 68.3686 
                 140.9321 
                 118.3258 
                 0.346553928 
                 0.263653609 
                 0.08290032 
                 0.000701 
                 277.2773 
                 1836.375 
               
               
                 Oct. 06, 2009 1:27:37 PM 
                 294.9652 
                 2116.599 
                 0.3567 
                 0.2739 
                 68.3514 
                 140.9321 
                 118.8734 
                 0.357790916 
                 0.265592951 
                 0.09219796 
                 0.000776 
                 277.5288 
                 1829.056 
               
               
                 Oct. 06, 2009 1:27:38 PM 
                 294.4174 
                 2101.874 
                 0.3536 
                 0.2733 
                 68.4201 
                 140.7089 
                 117.8272 
                 0.35467026 
                 0.265039209 
                 0.08963105 
                 0.000761 
                 277.0381 
                 1843.268 
               
               
                 Oct. 06, 2009 1:27:39 PM 
                 294.7032 
                 2117.878 
                 0.353 
                 0.2757 
                 68.3686 
                 140.6059 
                 118.8396 
                 0.354076807 
                 0.267379729 
                 0.08669708 
                 0.000730 
                 277.4979 
                 1829.599 
               
               
                 Oct. 06, 2009 1:27:40 PM 
                 293.886 
                 2116.618 
                 0.3501 
                 0.2719 
                 68.3858 
                 140.4686 
                 118.4395 
                 0.35116519 
                 0.26371158 
                 0.08745361 
                 0.000738 
                 277.6028 
                 1822.579 
               
               
                 Oct. 06, 2009 1:27:41 PM 
                 293.5657 
                 2129.621 
                 0.355 
                 0.2756 
                 68.3858 
                 140.3656 
                 119.0373 
                 0.356080099 
                 0.267313211 
                 0.08876689 
                 0.000746 
                 277.4984 
                 1802.123 
               
               
                 Oct. 06, 2009 1:27:42 PM 
                 293.9699 
                 2151.285 
                 0.3519 
                 0.275 
                 68.3858 
                 140.3656 
                 120.4138 
                 0.352970667 
                 0.266731252 
                 0.08623942 
                 0.000716 
                 277.9525 
                 1797.457 
               
               
                 Oct. 06, 2009 1:27:43 PM 
                 293.3563 
                 2126.96 
                 0.3531 
                 0.2777 
                 68.4029 
                 140.1768 
                 118.8037 
                 0.354171541 
                 0.269374185 
                 0.08479736 
                 0.000714 
                 278.0536 
                 1803.393 
               
               
                 Oct. 06, 2009 1:27:44 PM 
                 294.2607 
                 2150.898 
                 0.3546 
                 0.2765 
                 68.3686 
                 140.1424 
                 120.5112 
                 0.355681687 
                 0.268214538 
                 0.08746715 
                 0.000726 
                 278.718 
                 1797.223 
               
               
                 Oct. 06, 2009 1:27:45 PM 
                 294.4901 
                 2136.372 
                 0.3501 
                 0.2733 
                 68.3858 
                 140.1596 
                 119.7906 
                 0.35116519 
                 0.265108265 
                 0.08605693 
                 0.000718 
                 278.1348 
                 1795.441 
               
               
                 Oct. 06, 2009 1:27:46 PM 
                 293.4724 
                 2147.944 
                 0.3504 
                 0.2752 
                 68.3686 
                 139.9364 
                 120.0233 
                 0.351468876 
                 0.266979571 
                 0.08448930 
                 0.000704 
                 277.9216 
                 1791.481 
               
               
                 Oct. 06, 2009 1:27:47 PM 
                 294.3863 
                 2151.864 
                 0.3514 
                 0.2737 
                 68.3686 
                 139.8162 
                 120.6168 
                 0.352471926 
                 0.265539511 
                 0.08693242 
                 0.000721 
                 278.2301 
                 1791.189 
               
               
                 Oct. 06, 2009 1:27:48 PM 
                 294.2386 
                 2138.366 
                 0.3569 
                 0.2727 
                 68.3858 
                 139.7132 
                 119.8 
                 0.35798588 
                 0.264582247 
                 0.09340363 
                 0.000780 
                 277.761 
                 1785.467 
               
               
                 Oct. 06, 2009 1:27:49 PM 
                 294.3842 
                 2140.042 
                 0.3527 
                 0.2763 
                 68.4544 
                 139.6961 
                 119.9533 
                 0.353761971 
                 0.268077255 
                 0.08568472 
                 0.000714 
                 277.6721 
                 1788.002 
               
               
                 Oct. 06, 2009 1:27:50 PM 
                 294.5626 
                 2131.502 
                 0.3533 
                 0.2841 
                 68.3686 
                 139.5759 
                 119.547 
                 0.354377722 
                 0.275660834 
                 0.07871689 
                 0.000658 
                 278.2889 
                 1801.155 
               
               
                 Oct. 06, 2009 1:27:51 PM 
                 294.8079 
                 2139.172 
                 0.3516 
                 0.274 
                 68.3686 
                 139.5416 
                 120.0771 
                 0.352672536 
                 0.265065177 
                 0.08680736 
                 0.000723 
                 278.0981 
                 1783.175 
               
               
                 Oct. 06, 2009 1:27:52 PM 
                 294.4442 
                 2145.698 
                 0.3577 
                 0.2767 
                 68.3858 
                 139.4386 
                 120.2948 
                 0.358788314 
                 0.268498126 
                 0.09029019 
                 0.000751 
                 278.3048 
                 1785.961 
               
               
                 Oct. 06, 2009 1:27:53 PM 
                 294.0662 
                 2139.346 
                 0.3533 
                 0.2753 
                 68.3514 
                 139.3871 
                 119.7847 
                 0.354380517 
                 0.267146146 
                 0.08723437 
                 0.000728 
                 278.7017 
                 1781.508 
               
               
                 Oct. 06, 2009 1:27:54 PM 
                 294.3461 
                 2124.688 
                 0.353 
                 0.2742 
                 68.4029 
                 139.3871 
                 119.0772 
                 0.354071237 
                 0.266078726 
                 0.08799251 
                 0.000739 
                 278.3488 
                 1799.182 
               
               
                 Oct. 06, 2009 1:27:55 PM 
                 294.9875 
                 2131.499 
                 0.3549 
                 0.2755 
                 68.3686 
                 139.1639 
                 119.7193 
                 0.355982603 
                 0.267368509 
                 0.08861409 
                 0.000740 
                 278.8341 
                 1790.88 
               
               
                 Oct. 06, 2009 1:27:56 PM 
                 294.7929 
                 2107.707 
                 0.3485 
                 0.2725 
                 68.3858 
                 139.1467 
                 118.3048 
                 0.349560322 
                 0.264459211 
                 0.08510111 
                 0.000719 
                 278.4484 
                 1767.095 
               
               
                 Oct. 06, 2009 1:27:57 PM 
                 295.3911 
                 2106.724 
                 0.3547 
                 0.2741 
                 68.3858 
                 138.9579 
                 118.4896 
                 0.355779186 
                 0.266035804 
                 0.08974338 
                 0.000757 
                 278.4302 
                 1783.754 
               
               
                 Oct. 06, 2009 1:27:58 PM 
                 295.0239 
                 2116.235 
                 0.3518 
                 0.2728 
                 68.3858 
                 138.8549 
                 118.8766 
                 0.352870363 
                 0.264786976 
                 0.08808339 
                 0.000741 
                 278.1023 
                 1773.578 
               
               
                 Oct. 06, 2009 1:27:59 PM 
                 295.1302 
                 2120.973 
                 0.3519 
                 0.2756 
                 68.3686 
                 138.8378 
                 119.1857 
                 0.352973451 
                 0.267506899 
                 0.08546655 
                 0.000717 
                 278.6895 
                 1768.191 
               
               
                 Oct. 06, 2009 1:28:00 PM 
                 295.2361 
                 2121.979 
                 0.3526 
                 0.2781 
                 68.4201 
                 138.8206 
                 119.285 
                 0.353667233 
                 0.269935686 
                 0.08373155 
                 0.000702 
                 278.9382 
                 1772.852 
               
               
                 Oct. 06, 2009 1:28:01 PM 
                 295.1634 
                 2124.537 
                 0.3552 
                 0.2722 
                 68.3514 
                 138.7519 
                 119.3994 
                 0.356286328 
                 0.264217497 
                 0.09206883 
                 0.000771 
                 278.2179 
                 1772.684 
               
               
                 Oct. 06, 2009 1:28:02 PM 
                 294.9498 
                 2112.338 
                 0.3549 
                 0.2739 
                 68.3858 
                 138.7519 
                 118.6279 
                 0.355979795 
                 0.265867643 
                 0.09011215 
                 0.000760 
                 279.1032 
                 1774.373 
               
               
                 Oct. 06, 2009 1:28:03 PM 
                 294.9796 
                 2115.989 
                 0.3474 
                 0.277 
                 68.3858 
                 138.5287 
                 118.8449 
                 0.348456976 
                 0.268905173 
                 0.07955180 
                 0.000669 
                 279.4397 
                 1770.628 
               
               
                 Oct. 06, 2009 1:28:04 PM 
                 295.0032 
                 2121.807 
                 0.3466 
                 0.2809 
                 68.3514 
                 138.6318 
                 119.1812 
                 0.347660026 
                 0.272677881 
                 0.07498215 
                 0.000629 
                 278.9635 
                 1760.562 
               
               
                 Oct. 06, 2009 1:28:05 PM 
                 295.255 
                 2114.467 
                 0.3523 
                 0.2742 
                 68.4201 
                 138.4944 
                 118.8703 
                 0.353366325 
                 0.266191324 
                 0.08717500 
                 0.000733 
                 279.3546 
                 1754.526 
               
               
                 Oct. 06, 2009 1:28:06 PM 
                 295.3777 
                 2102.115 
                 0.3562 
                 0.2733 
                 68.3686 
                 138.4429 
                 118.225 
                 0.357286568 
                 0.265324085 
                 0.09196248 
                 0.000778 
                 279.2841 
                 1755.547 
               
               
                 Oct. 06, 2009 1:28:07 PM 
                 295.646 
                 2096.605 
                 0.349 
                 0.2698 
                 68.3686 
                 138.4429 
                 118.0223 
                 0.350064605 
                 0.261926229 
                 0.08813838 
                 0.000747 
                 279.1276 
                 1749.967 
               
               
                 Oct. 06, 2009 1:28:08 PM 
                 295.6004 
                 2093.762 
                 0.3511 
                 0.271 
                 68.3514 
                 138.3056 
                 117.844 
                 0.352173789 
                 0.263108324 
                 0.08906546 
                 0.000756 
                 279.5825 
                 1754.635 
               
               
                 Oct. 06, 2009 1:28:09 PM 
                 295.3016 
                 2111.734 
                 0.3497 
                 0.2725 
                 68.3343 
                 138.2197 
                 118.7354 
                 0.350772258 
                 0.264575411 
                 0.08619685 
                 0.000726 
                 279.575 
                 1760.735 
               
               
                 Oct. 06, 2009 1:28:10 PM 
                 295.4055 
                 2112.357 
                 0.3568 
                 0.2734 
                 68.4029 
                 138.2541 
                 118.8122 
                 0.357882769 
                 0.265444911 
                 0.09243786 
                 0.000778 
                 279.4342 
                 1750.83 
               
               
                 Oct. 06, 2009 1:28:11 PM 
                 295.1382 
                 2104.632 
                 0.3561 
                 0.2775 
                 68.3686 
                 138.3399 
                 118.2706 
                 0.357186263 
                 0.269414662 
                 0.08777160 
                 0.000742 
                 279.3136 
                 1745.327 
               
               
                 Oct. 06, 2009 1:28:12 PM 
                 295.4852 
                 2080.439 
                 0.3519 
                 0.2757 
                 68.3636 
                 138.2369 
                 117.0485 
                 0.352973451 
                 0.26768017 
                 0.08529328 
                 0.000729 
                 279.5515 
                 1740.968 
               
               
                 Oct. 06, 2009 1:28:13 PM 
                 295.2137 
                 2119.889 
                 0.3514 
                 0.2743 
                 68.3686 
                 138.0996 
                 119.1585 
                 0.352471926 
                 0.266338219 
                 0.08613371 
                 0.000723 
                 278.8739 
                 1738.198 
               
               
                   
               
             
          
           
               
                   
                   
                   
                   
                   
                 Engine 2 
                 ENG 2 
                   
                   
                 Average 
                   
               
             
          
           
               
                 Item 
                 Chan9 
                 Chan10 
                 Chan11 
                 Chan12 
                 H.P. 
                 Fuel in Mod 
                 fuel out E 
                 ENG 2 
                 E#2 Eff 
                 EFF 
                   
               
               
                 Chan Tag 
                 Flow 3 
                 Flow 4 
                 F. Temp 3 
                 F. Temp 4 
                 c7*c8/ 
                 C9*(1 + (75 − 
                 C10*(1 + (75 − 
                 G.P.M. MOD 
                 GPM/HP 
                 (MC5 +  
                   
               
               
                 Eng. Unit 
                 GPM&#39;s 
                 GPM&#39;s 
                 Deg. F. 
                 Deg. F. 
                 5252 
                 F6)*0.00046) 
                 F6)*0.00046) 
                 MC7-MC8 
                 MC9/MC6 
                 MC10)/2 
                 GPS Data 
               
             
          
           
               
                 Time 
                 Chan9 
                 Chan10 
                 Chan11 
                 Chan12 
                 MC6 
                 MC7 
                 MC8 
                 MC9 
                 MC10 
                 MC11 
                 Pt# 
                 Northing (ft) 
               
               
                   
               
               
                 Oct. 06, 2009 1:27:23 PM 
                 0.2702 
                 0.235 
                 66.4803 
                 137.3443 
                 92.30546 
                 0.271258931 
                 0.228260581 
                 0.04299835 
                 0.000466 
                 0.00061669 
                 1219 
                 332875.7982 
               
               
                 Oct. 06, 2009 1:27:24 PM 
                 0.2904 
                 0.2416 
                 66.6004 
                 137.3271 
                 92.3861 
                 0.291522052 
                 0.234673215 
                 0.05684884 
                 0.000615 
                 0.00067924 
                 1220 
                 332873.9212 
               
               
                 Oct. 06, 2009 1:27:25 PM 
                 0.2799 
                 0.2359 
                 66.5661 
                 137.3271 
                 92.45044 
                 0.280985898 
                 0.229136637 
                 0.05184926 
                 0.000561 
                 0.00066948 
                 1221 
                 332872.0289 
               
               
                 Oct. 06, 2009 1:27:26 PM 
                 0.289 
                 0.2425 
                 66.5318 
                 137.3099 
                 92.83293 
                 0.290125763 
                 0.235549331 
                 0.05457643 
                 0.000588 
                 0.00066436 
                 1222 
                 332870.1992 
               
               
                 Oct. 06, 2009 1:27:27 PM 
                 0.2883 
                 0.2332 
                 66.6691 
                 137.3271 
                 92.75114 
                 0.289404827 
                 0.226514047 
                 0.06289078 
                 0.000678 
                 0.00070398 
                 1223 
                 332868.3712 
               
               
                 Oct. 06, 2009 1:27:28 PM 
                 0.2809 
                 0.2451 
                 66.6519 
                 137.2928 
                 93.42208 
                 0.281978691 
                 0.238076736 
                 0.04390196 
                 0.000470 
                 0.00059865 
                 1224 
                 332866.526 
               
               
                 Oct. 06, 2009 1:27:29 PM 
                 0.2889 
                 0.2274 
                 66.6176 
                 137.2241 
                 93.90376 
                 0.290013971 
                 0.22089111 
                 0.06912286 
                 0.000736 
                 0.00073338 
                 1225 
                 332864.7166 
               
               
                 Oct. 06, 2009 1:27:30 PM 
                 0.2812 
                 0.2403 
                 66.6176 
                 137.2069 
                 93.33435 
                 0.28228428 
                 0.233423774 
                 0.04886051 
                 0.000523 
                 0.00063354 
                 1226 
                 332862.8646 
               
               
                 Oct. 06, 2009 1:27:31 PM 
                 0.2881 
                 0.2289 
                 66.6519 
                 137.2413 
                 94.14241 
                 0.28920634 
                 0.222346365 
                 0.06685998 
                 0.000710 
                 0.00070520 
                 1227 
                 332860.993 
               
               
                 Oct. 06, 2009 1:27:32 PM 
                 0.2921 
                 0.2512 
                 66.6348 
                 137.2241 
                 95.225 
                 0.293223998 
                 0.244009881 
                 0.04921412 
                 0.000517 
                 0.00064408 
                 1228 
                 332859.0173 
               
               
                 Oct. 06, 2009 1:27:33 PM 
                 0.3009 
                 0.2421 
                 66.6004 
                 137.2413 
                 95.41277 
                 0.302062622 
                 0.235168435 
                 0.06689419 
                 0.000701 
                 0.00074435 
                 1229 
                 332856.9675 
               
               
                 Oct. 06, 2009 1:27:34 PM 
                 0.2887 
                 0.2513 
                 66.6863 
                 137.2756 
                 95.9266 
                 0.289804076 
                 0.244101065 
                 0.04570301 
                 0.000476 
                 0.00059562 
                 1230 
                 332854.8757 
               
               
                 Oct. 06, 2009 1:27:35 PM 
                 0.2969 
                 0.2406 
                 66.6519 
                 137.1898 
                 96.56369 
                 0.298040133 
                 0.233717082 
                 0.06432305 
                 0.000666 
                 0.00069740 
                 1231 
                 332852.7562 
               
               
                 Oct. 06, 2009 1:27:36 PM 
                 0.2967 
                 0.2519 
                 66.6519 
                 137.0696 
                 96.9507 
                 0.297839365 
                 0.244707747 
                 0.05313162 
                 0.000548 
                 0.00062432 
                 1232 
                 332850.5719 
               
               
                 Oct. 06, 2009 1:27:37 PM 
                 0.2843 
                 0.244 
                 66.6519 
                 137.2069 
                 96.65189 
                 0.285391748 
                 0.237017898 
                 0.04837385 
                 0.000500 
                 0.00063805 
                 1233 
                 332848.3026 
               
               
                 Oct. 06, 2009 1:27:38 PM 
                 0.2902 
                 0.2376 
                 66.6519 
                 137.2069 
                 97.23067 
                 0.291314405 
                 0.230801035 
                 0.06051337 
                 0.000622 
                 0.00069153 
                 1234 
                 332846 
               
               
                 Oct. 06, 2009 1:27:39 PM 
                 0.2986 
                 0.2433 
                 66.6348 
                 137.1898 
                 96.66982 
                 0.29974901 
                 0.236339842 
                 0.06340917 
                 0.000656 
                 0.00069273 
                 1235 
                 332893.699 
               
               
                 Oct. 06, 2009 1:27:40 PM 
                 0.2944 
                 0.2376 
                 66.6863 
                 137.1898 
                 96.33531 
                 0.295525875 
                 0.230802904 
                 0.06472297 
                 0.000672 
                 0.00070512 
                 1236 
                 332841.3709 
               
               
                 Oct. 06, 2009 1:27:41 PM 
                 0.2926 
                 0.2432 
                 66.7378 
                 137.2069 
                 95.21825 
                 0.293712059 
                 0.23624079 
                 0.05747127 
                 0.000604 
                 0.00067464 
                 1237 
                 332838.9977 
               
               
                 Oct. 06, 2009 1:27:42 PM 
                 0.2863 
                 0.2343 
                 66.6004 
                 137.2069 
                 95.12713 
                 0.287406211 
                 0.227595465 
                 0.05981075 
                 0.000629 
                 0.00067247 
                 1238 
                 332836.6217 
               
               
                 Oct. 06, 2009 1:27:43 PM 
                 0.291 
                 0.2366 
                 66.6519 
                 137.1726 
                 95.47599 
                 0.292117477 
                 0.229833383 
                 0.06228409 
                 0.000652 
                 0.00068306 
                 1239 
                 332834.2395 
               
               
                 Oct. 06, 2009 1:27:44 PM 
                 0.2837 
                 0.2294 
                 66.5833 
                 137.1898 
                 95.37669 
                 0.284798396 
                 0.222837484 
                 0.06196091 
                 0.000650 
                 0.00068772 
                 1240 
                 332831.8323 
               
               
                 Oct. 06, 2009 1:27:45 PM 
                 0.2965 
                 0.2383 
                 66.5661 
                 137.2069 
                 95.08275 
                 0.2976503 
                 0.231481004 
                 0.06616930 
                 0.000696 
                 0.00070715 
                 1241 
                 332829.4097 
               
               
                 Oct. 06, 2009 1:27:46 PM 
                 0.2863 
                 0.2333 
                 66.5318 
                 137.2241 
                 94.80032 
                 0.287415245 
                 0.226622234 
                 0.06079301 
                 0.000641 
                 0.00067261 
                 1242 
                 332826.968 
               
               
                 Oct. 06, 2009 1:27:47 PM 
                 0.2809 
                 0.2458 
                 66.6004 
                 137.1726 
                 94.89008 
                 0.281985346 
                 0.238770268 
                 0.04321508 
                 0.000455 
                 0.00058808 
                 1243 
                 332824.5052 
               
               
                 Oct. 06, 2009 1:27:48 PM 
                 0.2907 
                 0.2302 
                 66.7549 
                 137.0352 
                 94.42748 
                 0.291802551 
                 0.223630969 
                 0.06817158 
                 0.000722 
                 0.00075080 
                 1244 
                 332822.0284 
               
               
                 Oct. 06, 2009 1:27:49 PM 
                 0.2912 
                 0.2363 
                 66.6176 
                 137.0181 
                 94.53128 
                 0.292322839 
                 0.229558757 
                 0.06276408 
                 0.000664 
                 0.00068913 
                 1245 
                 332819.5075 
               
               
                 Oct. 06, 2009 1:27:50 PM 
                 0.2915 
                 0.2247 
                 66.6004 
                 137.0181 
                 95.4382 
                 0.292626302 
                 0.218289685 
                 0.07433662 
                 0.000779 
                 0.00071868 
                 1246 
                 332816.9908 
               
               
                 Oct. 06, 2009 1:27:51 PM 
                 0.2948 
                 0.2348 
                 66.6348 
                 137.0181 
                 94.42071 
                 0.295934388 
                 0.228101549 
                 0.06783284 
                 0.000718 
                 0.00072067 
                 1247 
                 332814.4186 
               
               
                 Oct. 06, 2009 1:27:52 PM 
                 0.2861 
                 0.232 
                 66.6519 
                 137.0352 
                 94.63852 
                 0.28719866 
                 0.225379603 
                 0.06181906 
                 0.000653 
                 000070189 
                 1248 
                 332811.7937 
               
               
                 Oct. 06, 2009 1:27:53 PM 
                 0.2851 
                 0.2348 
                 66.5833 
                 137.0181 
                 94.53719 
                 0.286203817 
                 0.228101549 
                 0.05810227 
                 0.000615 
                 0.00067143 
                 1249 
                 332809.1509 
               
               
                 Oct. 06, 2009 1:27:54 PM 
                 0.2905 
                 0.2251 
                 66.6176 
                 137.1039 
                 95.35418 
                 0.29162014 
                 0.21866939 
                 0.07295075 
                 0.000765 
                 0.00075200 
                 1250 
                 332806.5139 
               
               
                 Oct. 06, 2009 1:27:55 PM 
                 0.2765 
                 0.2375 
                 66.6863 
                 137.0524 
                 95.07967 
                 0.27755742 
                 0.230720775 
                 0.04683664 
                 0.000493 
                 0.00061639 
                 1251 
                 332803.8272 
               
               
                 Oct. 06, 2009 1:27:56 PM 
                 0.285 
                 0.2302 
                 66.6519 
                 137.1898 
                 93.68712 
                 0.286094436 
                 0.223614598 
                 0.06247984 
                 0.000667 
                 0.00069312 
                 1252 
                 332801.0979 
               
               
                 Oct. 06, 2009 1:27:57 PM 
                 0.2728 
                 0.2379 
                 66.6519 
                 137.0352 
                 94.56416 
                 0.273847586 
                 0.23111124 
                 0.04273635 
                 0.000452 
                 0.00060466 
                 1253 
                 332798.3279 
               
               
                 Oct. 06, 2009 1:27:58 PM 
                 0.2854 
                 0.2304 
                 66.6691 
                 137.0352 
                 93.91396 
                 0.286493714 
                 0.223825261 
                 0.06266845 
                 0.000667 
                 0.00070413 
                 1254 
                 332795.4828 
               
               
                 Oct. 06, 2009 1:27:59 PM 
                 0.2896 
                 0.2408 
                 66.7206 
                 137.0696 
                 93.8264 
                 0.290702949 
                 0.233924675 
                 0.05677827 
                 0.000605 
                 0.00066111 
                 1255 
                 332792.6167 
               
               
                 Oct. 06, 2009 1:28:00 PM 
                 0.2781 
                 0.2372 
                 66.5833 
                 137.0696 
                 94.15768 
                 0.279176715 
                 0.230427462 
                 0.04874925 
                 0.000518 
                 0.00060984 
                 1256 
                 332789.6435 
               
               
                 Oct. 06, 2009 1:28:01 PM 
                 0.2762 
                 0.2392 
                 66.6519 
                 137.0867 
                 93.90564 
                 0.277260643 
                 0.232368476 
                 0.04489217 
                 0.000478 
                 0.00062458 
                 1257 
                 332786.6968 
               
               
                 Oct. 06, 2009 1:28:02 PM 
                 0.286 
                 0.2337 
                 66.7378 
                 137.1039 
                 94.29421 
                 0.287086975 
                 0.227023707 
                 0.06006327 
                 0.000637 
                 0.00069830 
                 1258 
                 332783.7412 
               
               
                 Oct. 06, 2009 1:28:03 PM 
                 0.284 
                 0.2403 
                 66.7893 
                 137.0696 
                 94.20864 
                 0.285072646 
                 0.233438951 
                 0.05163370 
                 0.000548 
                 0.00060873 
                 1259 
                 332780.7984 
               
               
                 Oct. 06, 2009 1:28:04 PM 
                 0.2908 
                 0.2353 
                 66.6691 
                 137.0352 
                 93.51343 
                 0.291914408 
                 0.228585434 
                 0.06332897 
                 0.000677 
                 0.00065318 
                 1260 
                 332777.8097 
               
               
                 Oct. 06, 2009 1:28:05 PM 
                 0.3004 
                 0.2385 
                 66.6348 
                 137.0352 
                 93.32348 
                 0.301555937 
                 0.231694118 
                 0.06986182 
                 0.000749 
                 0.00074098 
                 1261 
                 332774.7707 
               
               
                 Oct. 06, 2009 1:28:06 PM 
                 0.2817 
                 0.2485 
                 66.7893 
                 136.8979 
                 93.35422 
                 0.282763959 
                 0.241424451 
                 0.04133951 
                 0.000443 
                 0.00061034 
                 1262 
                 332771.738 
               
               
                 Oct. 06, 2009 1:28:07 PM 
                 0.286 
                 0.2407 
                 66.6691 
                 136.9151 
                 93.00535 
                 0.287096013 
                 0.233844636 
                 0.05325138 
                 0.000573 
                 0.00065968 
                 1263 
                 332768.6724 
               
               
                 Oct. 06, 2009 1:28:08 PM 
                 0.2794 
                 0.2458 
                 66.8064 
                 136.8979 
                 93.40542 
                 0.280453074 
                 0.238801328 
                 0.04165175 
                 0.000446 
                 0.00060086 
                 1264 
                 332765.5685 
               
               
                 Oct. 06, 2009 1:28:09 PM 
                 0.2821 
                 0.2395 
                 66.7206 
                 136.8979 
                 93.72763 
                 0.283174385 
                 0.232680708 
                 0.05049368 
                 0.000539 
                 0.00063234 
                 1265 
                 332762.4885 
               
               
                 Oct. 06, 2009 1:28:10 PM 
                 0.2841 
                 0.2402 
                 66.7893 
                 136.8979 
                 93.15342 
                 0.285173024 
                 0.233360777 
                 0.05181225 
                 0.000556 
                 0.00066711 
                 1266 
                 332759.3447 
               
               
                 Oct. 06, 2009 1:28:11 PM 
                 0.2841 
                 0.2335 
                 66.7378 
                 136.7778 
                 92.82056 
                 0.285179754 
                 0.226864447 
                 0.05831531 
                 0.000628 
                 0.00068519 
                 1267 
                 332756.1819 
               
               
                 Oct. 06, 2009 1:28:12 PM 
                 0.2837 
                 0.2366 
                 66.6519 
                 136.7606 
                 92.6676 
                 0.284789444 
                 0.229878223 
                 0.05491122 
                 0.000593 
                 0.00066063 
                 1268 
                 332753.0314 
               
               
                 Oct. 06, 2009 1:28:13 PM 
                 0.2731 
                 0.2324 
                 66.7721 
                 136.7606 
                 92.2959 
                 0.274133638 
                 0.225797545 
                 0.04833609 
                 0.000524 
                 0.00062328 
                 1269 
                 332749.8382 
               
               
                   
               
             
          
           
               
                   
                   
                   
                 Current Speed 
                 Data Sets 
                   
                   
               
             
          
           
               
                 Item 
                   
                 North Bearing River 
                 0.84 MPH 
                   
                 Average Overall 
                   
                   
               
             
          
           
               
                 Chan Tag 
                   
                 Heading 
                 Distance 
                 Speed  
                 Corrected 
                   
                 Efficiency 600 sec  
                 Distance Traveled 
                 Average Speed 
               
               
                 Eng. Unit 
                 GPS Data 
                 (Bearing) 
                 (ft/sec) 
                 (MPH) 
                 Speed 
                   
                 Sample MC11 
                 600 sec Sample 
                 600 Sec Sample 
               
             
          
           
               
                 Time 
                 Easting (ft) 
                 Elevation (ft) 
                 MC12 
                 MC13 
                 MC14 
                 (MPH) 
                 Count 
                 MC15 
                 MC16 
                 MPH 
               
               
                   
               
               
                 Oct. 06, 2009 1:27:23 PM 
                 1348612.173 
                 758.187 
                   
                   
                   
                   
                 1 
                 0.0007311 
                 3748.8747715 
                 4.260084968 
               
               
                 Oct. 06, 2009 1:27:24 PM 
                 1348612.597 
                 758.1623 
                 167.254 
                 1.924426 
                 1.31 
                 0.47 
                 2 
                 0.0007314 
                 3753.9118537 
                 4.265808925 
               
               
                 Oct. 06, 2009 1:27:25 PM 
                 1348613.158 
                 758.1812 
                 163.481 
                 1.973764 
                 1.35 
                 0.51 
                 4 
                 0.0007319 
                 3758.8547757 
                 4.271425881 
               
               
                 Oct. 06, 2009 1:27:26 PM 
                 1348613.818 
                 758.1915 
                 160.19 
                 1.944792 
                 1.33 
                 0.49 
                 3 
                 0.0007319 
                 3763.8273784 
                 4.277076566 
               
               
                 Oct. 06, 2009 1:27:27 PM 
                 1348614.566 
                 758.2096 
                 157.733 
                 1.975307 
                 1.35 
                 0.51 
                 5 
                 0.0007319 
                 3768.7880402 
                 4.282713682 
               
               
                 Oct. 06, 2009 1:27:28 PM 
                 1348615.407 
                 758.2423 
                 155.487 
                 2.027983 
                 1.38 
                 0.54 
                 6 
                 0.0007321 
                 3773.6581549 
                 4.288247903 
               
               
                 Oct. 06, 2009 1:27:29 PM 
                 1348616.323 
                 758.2613 
                 153.149 
                 2.028049 
                 1.38 
                 0.54 
                 7 
                 0.0007323 
                 3778.5549375 
                 4.293812429 
               
               
                 Oct. 06, 2009 1:27:30 PM 
                 1348617.316 
                 758.2395 
                 151.801 
                 2.101417 
                 1.43 
                 0.59 
                 8 
                 0.0007324 
                 3783.3252726 
                 4.299233264 
               
               
                 Oct. 06, 2009 1:27:31 PM 
                 1348616.313 
                 758.2469 
                 151.968 
                 2.120353 
                 1.45 
                 0.61 
                 9 
                 0.0007326 
                 3788.1619507 
                 4.304729489 
               
               
                 Oct. 06, 2009 1:27:32 PM 
                 1348619.315 
                 758.2335 
                 153.108 
                 2.215264 
                 1.51 
                 0.67 
                 10 
                 0.0007327 
                 3792.8902823 
                 4.310102594 
               
               
                 Oct. 06, 2009 1:27:33 PM 
                 1348620.301 
                 758.2407 
                 154.311 
                 2.274616 
                 1.55 
                 0.71 
                 11 
                 0.0007328 
                 3797.5828625 
                 4.315435071 
               
               
                 Oct. 06, 2009 1:27:34 PM 
                 1648621.264 
                 758.2391 
                 155.271 
                 2.302991 
                 1.57 
                 0.73 
                 12 
                 0.0007329 
                 3802.2535492 
                 4.32074267 
               
               
                 Oct. 06, 2009 1:27:35 PM 
                 1348622.213 
                 758.2183 
                 155.898 
                 2.321931 
                 1.58 
                 0.74 
                 13 
                 0.0007331 
                 3806.9131100 
                 4.326037625 
               
               
                 Oct. 06, 2009 1:27:36 PM 
                 1348623.159 
                 758.2075 
                 156.568 
                 2.380632 
                 1.62 
                 0.78 
                 14 
                 0.0007337 
                 3811.4502535 
                 4.33119347 
               
               
                 Oct. 06, 2009 1:27:37 PM 
                 1348624.122 
                 758.2098 
                 157.018 
                 2.464941 
                 1.68 
                 0.84 
                 15 
                 0.0007338 
                 3815.8427721 
                 4.336184968 
               
               
                 Oct. 06, 2009 1:27:38 PM 
                 1348625.103 
                 758.2026 
                 156.926 
                 2.502825 
                 1.71 
                 0.87 
                 16 
                 0.0007340 
                 3820.3178955 
                 4.341270336 
               
               
                 Oct. 06, 2009 1:27:39 PM 
                 1348626.122 
                 758.1946 
                 156.141 
                 2.521474 
                 1.72 
                 0.88 
                 18 
                 0.0007340 
                 3824.6726621 
                 4.346218934 
               
               
                 Oct. 06, 2009 1:27:40 PM 
                 1348627.198 
                 758.2187 
                 155.162 
                 2.559895 
                 1.75 
                 0.91 
                 20 
                 0.0007341 
                 3828.9667185 
                 4.351098544 
               
               
                 Oct. 06, 2009 1:27:41 PM 
                 1348628.34 
                 758.195 
                 154.289 
                 2.633978 
                 1.80 
                 0.96 
                 17 
                 0.0007340 
                 3833.2879892 
                 4.356009079 
               
               
                 Oct. 06, 2009 1:27:42 PM 
                 1348629.523 
                 758.1951 
                 153.543 
                 2.653949 
                 1.81 
                 0.97 
                 19 
                 0.0007341 
                 3837.5751028 
                 4.360880799 
               
               
                 Oct. 06, 2009 1:27:43 PM 
                 1348630.758 
                 758.2103 
                 152.593 
                 2.683393 
                 1.83 
                 0.99 
                 21 
                 0.0007342 
                 3841.8875003 
                 4.36578125 
               
               
                 Oct. 06, 2009 1:27:44 PM 
                 1348632.064 
                 758.205 
                 151.513 
                 2.738801 
                 1.87 
                 1.03 
                 22 
                 0.0007344 
                 3846.0717392 
                 4.370536067 
               
               
                 Oct. 06, 2009 1:27:45 PM 
                 1348633.438 
                 758.2038 
                 150.449 
                 2.784869 
                 1.90 
                 1.06 
                 23 
                 0.0007346 
                 3850.1521491 
                 4.375172897 
               
               
                 Oct. 06, 2009 1:27:46 PM 
                 1348634.849 
                 758.2157 
                 149.981 
                 2.819974 
                 1.92 
                 1.08 
                 24 
                 0.0007347 
                 3854.2481868 
                 4.379827485 
               
               
                 Oct. 06, 2009 1:27:47 PM 
                 1348636.288 
                 758.2014 
                 149.701 
                 2.852436 
                 1.94 
                 1.10 
                 25 
                 0.0007348 
                 3858.3273867 
                 4.384462939 
               
               
                 Oct. 06, 2009 1:27:48 PM 
                 1348637.778 
                 758.2317 
                 148.971 
                 2.890388 
                 1.97 
                 1.13 
                 26 
                 0.0007351 
                 3862.3767908 
                 4.389064535 
               
               
                 Oct. 06, 2009 1:27:49 PM 
                 1348639.341 
                 758.235 
                 148.192 
                 2.96639 
                 2.02 
                 1.18 
                 27 
                 0.0007351 
                 3866.3169310 
                 4.393541967 
               
               
                 Oct. 06, 2009 1:27:50 PM 
                 1348640.931 
                 758.2442 
                 147.711 
                 2.977051 
                 2.03 
                 1.19 
                 28 
                 0.0007351 
                 3870.2157576 
                 4.397972452 
               
               
                 Oct. 06, 2009 1:27:51 PM 
                 1348642.55 
                 758.2287 
                 147.827 
                 3.038826 
                 2.07 
                 1.23 
                 30 
                 0.0007353 
                 3874.1460754 
                 4.402438722 
               
               
                 Oct. 06, 2009 1:27:52 PM 
                 1348644.186 
                 758.2111 
                 148.062 
                 3.09315 
                 2.11 
                 1.27 
                 31 
                 0.0007353 
                 3877.9641223 
                 4.406777412 
               
               
                 Oct. 06, 2009 1:27:53 PM 
                 1348645.839 
                 758.1837 
                 147.98 
                 3.117019 
                 2.13 
                 1.29 
                 29 
                 0.0007352 
                 3881.7874878 
                 4.411122145 
               
               
                 Oct. 06, 2009 1:27:54 PM 
                 1348647.494 
                 758.1907 
                 147.883 
                 3.113485 
                 2.12 
                 1.28 
                 33 
                 0.0007353 
                 3885.5654755 
                 4.415415313 
               
               
                 Oct. 06, 2009 1:27:55 PM 
                 1348649.185 
                 758.2009 
                 147.812 
                 3.174614 
                 2.16 
                 1.32 
                 32 
                 0.0007353 
                 3889.2557948 
                 4.419608858 
               
               
                 Oct. 06, 2009 1:27:56 PM 
                 1348650.886 
                 758.2074 
                 148.07 
                 3.215867 
                 2.19 
                 1.35 
                 34 
                 0.0007355 
                 3893.0424787 
                 4.423911908 
               
               
                 Oct. 06, 2009 1:27:57 PM 
                 1338652.576 
                 758.214 
                 148.602 
                 3.245207 
                 2.21 
                 1.37 
                 35 
                 0.0007355 
                 3896.6708008 
                 4.428035001 
               
               
                 Oct. 06, 2009 1:27:58 PM 
                 1348654.289 
                 758.2363 
                 148.953 
                 3.320834 
                 2.26 
                 1.42 
                 37 
                 0.0007359 
                 3900.2459546 
                 4.432097676 
               
               
                 Oct. 06, 2009 1:27:59 PM 
                 1348655.986 
                 758.2436 
                 149.375 
                 3.330664 
                 2.27 
                 1.43 
                 36 
                 0.0007359 
                 3903.8661803 
                 4.436211569 
               
               
                 Oct. 06, 2009 1:28:00 PM 
                 1348657.718 
                 758.2485 
                 149.772 
                 3.441094 
                 2.35 
                 1.51 
                 38 
                 0.0007359 
                 3907.3074664 
                 4.440122121 
               
               
                 Oct. 06, 2009 1:28:01 PM 
                 1348659.426 
                 758.2574 
                 149.899 
                 3.406022 
                 2.32 
                 1.48 
                 39 
                 0.0007362 
                 3910.7799924 
                 4.444068173 
               
               
                 Oct. 06, 2009 1:28:02 PM 
                 1348661.174 
                 758.2631 
                 149.412 
                 3.433355 
                 2.34 
                 1.50 
                 40 
                 0.0007365 
                 3914.1773586 
                 4.447928817 
               
               
                 Oct. 06, 2009 1:28:03 PM 
                 1348662.962 
                 758.2498 
                 148.714 
                 3.443558 
                 2.35 
                 1.51 
                 41 
                 0.0007365 
                 3917.6332495 
                 4.451855965 
               
               
                 Oct. 06, 2009 1:28:04 PM 
                 1348664.813 
                 758.2434 
                 148.23 
                 3.515417 
                 2.40 
                 1.56 
                 42 
                 0.0007367 
                 3921.0489387 
                 4.45573743 
               
               
                 Oct. 06, 2009 1:28:05 PM 
                 1348666.707 
                 758.2353 
                 148.069 
                 3.580835 
                 2.44 
                 1.60 
                 43 
                 0.0007369 
                 3924.3649642 
                 4.459505641 
               
               
                 Oct. 06, 2009 1:28:06 PM 
                 1348668.601 
                 758.244 
                 148.016 
                 3.57549 
                 2.44 
                 1.60 
                 44 
                 0.0007369 
                 3927.6993183 
                 4.46329468 
               
               
                 Oct. 06, 2009 1:28:07 PM 
                 1348670.528 
                 758.2238 
                 147.836 
                 3.621369 
                 2.47 
                 1.63 
                 45 
                 0.0007371 
                 3931.0283938 
                 4.46707772 
               
               
                 Oct. 06, 2009 1:28:08 PM 
                 1348672.511 
                 758.2177 
                 147.428 
                 3.683217 
                 2.51 
                 1.67 
                 46 
                 0.0007373 
                 3934.1711502 
                 4.470649034 
               
               
                 Oct. 06, 2009 1:28:09 PM 
                 1348674.487 
                 758.2179 
                 147.32 
                 3.65926 
                 2.49 
                 1.65 
                 47 
                 0.0007376 
                 3937.3448595 
                 4.474255522 
               
               
                 Oct. 06, 2009 1:28:10 PM 
                 1348676.495 
                 758.2179 
                 147.429 
                 3.730516 
                 2.54 
                 1.70 
                 48 
                 0.0007377 
                 3940.5227379 
                 4.477866748 
               
               
                 Oct. 06, 2009 1:28:11 PM 
                 1348678.527 
                 758.1922 
                 147.279 
                 3.759353 
                 2.56 
                 1.72 
                 49 
                 0.0007378 
                 3943.6256411 
                 4.481392774 
               
               
                 Oct. 06, 2009 1:28:12 PM 
                 1348680.59 
                 758.1871 
                 146.783 
                 3.765849 
                 2.57 
                 1.73 
                 50 
                 0.0007379 
                 3946.7005753 
                 4.484887017 
               
               
                 Oct. 06, 2009 1:28:13 PM 
                 1348682.695 
                 758.207 
                 146.607 
                 3.824598 
                 2.61 
                 1.77 
                 51 
                 0.0007380 
                 3949.7589013 
                 4.488362388 
               
               
                   
               
             
          
         
       
     
     
       
         
               
               
               
               
               
               
               
             
               
               
               
               
               
               
               
             
               
               
               
               
               
               
               
             
               
               
               
               
               
               
               
             
           
               
                 TABLE 2 
               
               
                   
               
             
             
               
                   
                   
                 Prop 
                   
                   
                   
                   
               
               
                   
                 Prop 
                 Shaft 
                 Prop 
                   
                   
                   
               
               
                   
                 Shaft 
                 Torque 
                 Shaft 
                 Fuel 
                 Fuel 
                 Fuel 
               
               
                   
                 RPM 
                 ft.lbs. 
                 HP 
                 Flow 
                 Temp. 
                 Flow 
               
               
                   
                 (Ave.) 
                 (Ave.) 
                 (Ave.) 
                 (Supply) 
                 (Supply) 
                 (Return) 
               
               
                   
               
               
                 Starboard Baseline 
                 297.44 
                 1,968.15 
                 111.46 
                 0.33 
                 69.11 
                 0.26 
               
               
                 Starboard Comparison 
                 297.15 
                 1962.76 
                 111.04 
                 0.33 
                 68.53 
                 0.26 
               
               
                 Starboard Difference 
                 −0.29 
                 −5.39 
                 −0.43 
                   
                   
                   
               
               
                 Port Baseline 
                 326.44 
                 2136.15 
                 132.94 
                 0.38 
                 67.46 
                 0.29 
               
               
                 Port Comparison 
                 306.84 
                 2072.18 
                 121.35 
                 0.36 
                 67.05 
                 0.28 
               
               
                 Port Difference 
                 −19.60 
                 −63.97 
                 −11.60 
                   
                   
                   
               
               
                 Vessel Baseline 
                 311.94 
                 4,104.30 
                 244.4007 
                 0.7097297 
                 68.283827 
                 0.547697 
               
               
                 Vessel Comparison 
                 302.00 
                 4,034.93 
                 232.3807 
                 0.694385 
                 67.793334 
                 0.5409377 
               
               
                 Vessel Difference 
                 −9.94 
                 −69.37 
                 −12.02 
                   
                   
                   
               
               
                 % Change 
                 −3.19% 
                 −1.69% 
                 −4.92% 
               
               
                   
               
             
          
           
               
                   
                   
                   
                   
                 Soot/Oil 
                   
                   
               
               
                   
                 Fuel 
                   
                   
                 (PM) Tare 
                   
                   
               
               
                   
                 Temp. 
                 EGT 
                 Dot 
                 Weight 
                   
                   
               
               
                   
                 (Return) 
                 deg. F. 
                 Test # 
                 grams 
                 O 2%    
                 CO  ppm   
               
               
                   
               
               
                 Starboard Base Line 
                 136.61 
                 683 
                 9 
                 0.00125 
                 13.1 
                 65 
               
               
                 Starboard Comparison 
                 136.40 
                 735 
                 7 
                 0.00113 
                 12.7 
                 123 
               
               
                 Starboard Difference 
                   
                 52.00 
                 −2.00 
                 0.00 
                 −0.40 
                 58.00 
               
               
                 Port Baseline 
                 134.97 
                 693 
                 9 
                 0.00127 
                 13.2 
                 70 
               
               
                 Port Comparison 
                 135.02 
                 700 
                 7 
                 0.00112 
                 12.5 
                 149 
               
               
                 Port Difference 
                   
                 7.00 
                 −2.00 
                 0.00 
                 −0.70 
                 79.00 
               
               
                 Vessel Baseline 
                 135.78725 
                 688 
                 9 
                 0.00252 
                 13.15 
                 67.5 
               
               
                 Vessel Comparison 
                 135.70777 
                 717.5 
                 7 
                 0.00225 
                 12.6 
                 136 
               
               
                 Vessel Difference 
                   
                 29.50 
                 −2.00 
                 0.00 
                 −0.55 
                 68.50 
               
               
                 % Change 
                   
                 4.29% 
                 −22.22% 
                 −10.71% 
                 −4.18% 
                 101.48% 
               
               
                   
               
             
          
           
               
                   
                   
                   
                   
                   
                   
                 Fuel 
               
               
                   
                   
                   
                   
                   
                   
                 Consumption 
               
               
                   
                   
                   
                   
                   
                   
                 temperature  
               
               
                   
                   
                   
                   
                   
                   
                 corrected 
               
               
                   
                   
                   
                   
                   
                 NOx  ppm   
                 gal/min 
               
               
                   
                 CO 2%    
                 NO  ppm   
                 NO 2 ppm   
                 NOx  ppm   
                 (Corrected) 
                 (Ave.) 
               
               
                   
               
               
                 Starboard Base Line 
                 5.8 
                 2 
                 68.0112 
                 72.17 
                 1.01 
                 0.07898545 
               
               
                 Starboard Comparison 
                 6.1 
                 400 
                 1 
                 401 
                 426.13 
                 0.079271124 
               
               
                 Starboard Difference 
                 0.30 
                 398.00 
                 −67.01 
                 328.83 
                 425.12 
                 0.0002857 
               
               
                 Port Baseline 
                 5.7 
                 0 
                 0 
                 0 
                 0.00 
                 0.100562124 
               
               
                 Port Comparison 
                 6.2 
                 352 
                 2 
                 354 
                 376.32 
                 0.091584063 
               
               
                 Port Difference 
                 0.50 
                 352.00 
                 2.00 
                 354.00 
                 376.32 
                 −0.0089781 
               
               
                 Vessel Baseline 
                 5.75 
                 1 
                 34.0056 
                 36.085 
                 0.50 
                 0.179547574 
               
               
                 Vessel Comparison 
                 6.15 
                 376 
                 1.5 
                 377.5 
                 401.23 
                 0.170855187 
               
               
                 Vessel Difference 
                 0.40 
                 375.00 
                 −32.51 
                 341.42 
                 400.77 
                 −0.0086924 
               
               
                 % Change 
                 6.96% 
                 37500.00% 
                 −95.59% 
                 946.14% 
                 79718.37% 
                 −4.84% 
               
               
                   
               
             
          
           
               
                   
                   
                 Vessel 
                 Current 
                 True 
                   
                 Production 
               
               
                   
                 Fuel 
                 Velocity 
                 Velocity 
                 Velocity 
                 Pay 
                 Efficiency 
               
               
                   
                 Efficiency 
                 ft./min. 
                 ft./min. 
                 ft./min. 
                 Load 
                 tons/ft. per min./ 
               
               
                   
                 gpm/hp/1000 
                 (ave.) 
                 (ave.) 
                 (ave.) 
                 (tons) 
                 fuel cons. gpm 
               
               
                   
               
               
                 Starboard Base Line 
                 0.70864081 
                 8.070 
                 1.232 
                 6.838 
                 52 
                 929.03 
               
               
                 Starboard Comparison 
                 0.71392604 
                 7.501 
                 1.232 
                 6.269 
                 55 
                 971.84 
               
               
                 Starboard Difference 
                 0.0052852 
                   
                   
                   
                   
                 42.81 
               
               
                 Port Baseline 
                 0.75644596 
                 8.070 
                 1.232 
                 6.838 
                 52 
                 683.58 
               
               
                 Port Comparison 
                 0.75473986 
                 7.501 
                 1.232 
                 6.269 
                 55 
                 795.69 
               
               
                 Port Difference 
                 −0.0017061 
                   
                   
                   
                   
                 112.11 
               
               
                 Vessel Baseline 
                 0.73254339 
                 8.0702553 
                 1.232 
                 6.838255298 
                 52 
                 806.3066711 
               
               
                 Vessel Comparison 
                 0.73433295 
                 7.5010214 
                 1.232 
                 6.26902136 
                 55 
                 883.7661083 
               
               
                 Vessel Difference 
                 0.0017896 
                   
                   
                   
                   
                 77.46 
               
               
                 % Change 
                 0.24% 
                   
                   
                   
                   
                 9.61% 
               
               
                   
               
             
          
         
       
     
     Following the determination of the baseline efficiency, any modification to the engine, fuel etc. can be made, and then the same efficiency test is carried out again. With use of the present method, because of its accuracy, any improvement in efficiency or decrease in efficiency can accurately be determined. 
     For an electric motor drive system, Voltage is substituted for propeller shaft RPM, Amperage is substituted for propeller shaft torque and kilowatts (KW) is calculated and substituted for propeller shaft HP. The efficiency is calculated and expressed as fuel consumption divided by kilowatts (KW). 
     Other embodiments of the invention measures work done in relation to fuel consumption in a manner different from the embodiment described above. It can be used in addition to available power tests. Applications are found for this embodiment when there is not a practical means for collecting mechanical data such as strain in a drive shaft. Measuring torque and RPM of a drive shaft, as used in the first embodiment, is often difficult or impossible because of the arrangement of the diesel engine and other drive components of the vehicle or machinery to be evaluated. For example, earth moving equipment may not have a drive shaft suitable for mounting a strain gauge. Therefore, in the second embodiment, productivity (work done) is measured in a different manner as there is not a practical means of collecting torque and RPM of a drive shaft for calculating horsepower. The basis for comparison therefore does not include power. In these cases productivity (work done) is measured. 
     The recent development of Global Positioning Satellite (GPS) based positioning and tracking systems and Digital Imaging Scanning (IS) systems has enabled precision in collecting data for calculating work done. 
     Use of a GPS based positioning and tracking system provides an accurate means for documenting movement of a vehicle during a fuel efficiency test. This information can provide vehicle speed, changes in elevation and direction of movement each selected time period. In the GPS system used in the present work, the vehicle position measurements have an accuracy of about one half an inch on X, Y and Z axes. The vehicle speed, changes in elevation and direction of movement are collected every second, for example, for a total test period and time stamped on a “real time” basis. Fuel consumption data is likewise collected as described above in describing the first embodiment of the invention. 
     An IS (Imaging Scanning) system is used to accurately scan an area, such as a site to be excavated, and measure volumetric changes of the site beginning at a period before material has been moved, at the beginning of the test, and ending at the conclusion of the test. A series of reference points around the test area is established to insure accuracy and repeatability. 
     The combination of the GPS and IS technologies provides an accurate means of measuring productivity (work done) of a mobile vehicle (construction equipment, mining machinery or the like) by accurately measuring the volume of material that has been moved, the distance it has been moved and the elevation it has been moved. This data is combined with a density of the material and then merged with the fuel consumption data to generate a fuel efficiency value. This method provides an accurate basis for comparison between a baseline and comparison tests made after fuel efficiency changes are performed on the diesel engines(s). 
     With the use of GPS tracking software (Carlson Model IS-05 . . . . Image Scanning Reflectorless Robotic Total Station utilizing Carlson Software: Top SURV (ver. 7.5) complete with Image Master Software Package—Topcon Positioning Systems Inc.—Livermore, Calif.) the vehicle speed, direction of movement and elevation change can be determined in order to calculate the work done by the vehicle when the vehicle has a fixed load. This method can be applied to mobile vehicles where a known load is carried by an off highway mining truck, for example, or the load is carried by a towed device attached to the vehicle. Efficiencies of fuel consumption and emissions can be calculated and reported relative to “productivity” or “work done” on a “real time” basis. In use of the GPS tracking software, a GPS “rover unit” is mounted on the vehicle and a GPS “base unit” is located near the test site to communicate with the GPS rover unit and a satellite system in orbit. During the test period, data regarding the vehicles movement, including the vehicle speed, direction of movement and elevation change, is recorded each second, for example, for later entry into the GPS tracking software, mentioned above, for determining the work done by the vehicle. 
     When a load in the vehicle varies while work is being done, GPS tracking of the vehicle for speed, direction of movement and elevation change is used in combination with IS image scanning technology to record actual work done. This method can be applied to mobile vehicles where the load is not constant or the load is not contained in the vehicle, for example a load being pushed by a bulldozer. To determine the work done, a digital image scan (IS) of the test site surface is performed before and after the test session. The quantity of material moved, during the test session is calculated with the use of IS software (Carlson Model GR-3 or Model Hiper GA . . . RTK Positioning System utilizing Carlson Software: Top SURV (version. 7.5), SURV CE (version. 2.4.3), and/or Pocket 3D (version. 8.06)—Carlson Software, Maysville, Ky.). The quantity of material moved is merged with the GPS tracking data (vehicle speed, direction of movement and elevation change collected during the same period. This combination, along with a density of the material to determine a weight of the material moved, represents the “productivity” or “work done”. Efficiencies of fuel consumption and emissions can be calculated and reported relative to “productivity” or “work done” on a “real time” basis.