Chart 92005 Average Airframe Hours for Active Aircraft by Aircraft Type1303,2051,8585252251,1384,8051,9294,5714,2847,9765,7333,3437,8704,3813,1160 1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000 9,000LIGHT-SPORTOtherExhibitionAmateurEXPERIMENTALLighter-than-airGliderOTHER AIRCRAFTTurbinePistonROTORCRAFTOther2 EngineFIXED WING TURBOJETOther2 Engine1 EngineFIXED WING TURBOPROPOther2 Engine1 EngineFIXED WING PISTON

Aircraft TypeAverage Airframe HoursSource: 2005 GAATAA Survey Table 6.1Table 6.1Aircraft Estimate of Percent Estimate of Percent Estimate of Percent Estimate of PercentAIRCRAFT TYPE Population Number Standard Percent Standard Total Standard Average StandardSize Active Error Active Error Airframe Error Airframe ErrorHours HoursFixed WingFixed Wing - Piston1 Eng: 1-3 Seats 63,893 39,671 2.1 62.1 2.1 176,938,480 4.1 2,769.3 4.11 Eng: 4+ Seats 126,787 108,430 1.7 85.5 1.7 417,192,166 1.8 3,290.5 1.81 Engine: Total 190,680 148,101 1.9 77.7 1.9 594,130,646 1.8 3,115.9 1.82 Eng: 1-6 Seats 15,925 13,192 1.2 82.8 1.2 60,091,615 1.8 3,773.4 1.82 Eng: 7+ Seats 7,358 6,220 1.2 84.5 1.2 41,912,538 6.6 5,696.2 6.62 Engine: Total 23,283 19,412 1.2 83.4 1.2 102,004,154 2.8 4,381.1 2.8Piston: Other 214 95 2.1 44.4 2.1 1,684,094 15.6 7,869.6 15.6Piston: Total 214,177 167,608 1.8 78.3 1.8 697,818,894 1.6 3,258.1 1.62005 GENERAL AVIATION AND AIR TAXITOTAL AND AVERAGE AIRFRAME HOURS PER ALL AIRCRAFTBY AIRCRAFT TYPEPage 6 - 1Table 6.1Aircraft Estimate of Percent Estimate of Percent Estimate of Percent Estimate of PercentAIRCRAFT TYPE Population Number Standard Percent Standard Total Standard Average StandardSize Active Error Active Error Airframe Error Airframe ErrorHours Hours2005 GENERAL AVIATION AND AIR TAXITOTAL AND AVERAGE AIRFRAME HOURS PER ALL AIRCRAFTBY AIRCRAFT TYPEFixed Wing - Turboprop1 Engine: Total 2,766 2,595 0.3 93.8 0.3 9,247,488 2.9 3,343.3 2.92 Eng: 1-12 Seats 4,718 4,427 0.3 93.8 0.3 27,111,094 2.0 5,746.3 2.02 Eng: 13+ Seats 967 880 0.5 91.0 0.5 5,480,256 7.0 5,667.3 7.02 Engine: Total 5,685 5,307 0.3 93.4 0.3 32,591,350 2.0 5,732.9 2.0Turboprop: Other 73 40 1.6 54.5 1.6 582,257 5.4 7,976.1 5.4Turboprop: Total 8,524 7,942 0.3 93.2 0.3 42,421,095 1.6 4,976.7 1.6Fixed Wing - Turbojet2 Engine Turbojet 9,620 9,097 0.3 94.6 0.3 41,213,135 1.2 4,284.1 1.2Turbojet: Other 992 727 1.0 73.3 1.0 4,534,094 8.5 4,570.7 8.5Turbojet: Total 10,612 9,823 0.3 92.6 0.3 45,747,229 1.3 4,310.9 1.3Fixed Wing: Total 233,313 185,373 1.4 79.5 1.4 785,987,218 1.2 3,368.8 1.2Page 6 - 2Table 6.1Aircraft Estimate of Percent Estimate of Percent Estimate of Percent Estimate of PercentAIRCRAFT TYPE Population Number Standard Percent Standard Total Standard Average StandardSize Active Error Active Error Airframe Error Airframe ErrorHours Hours2005 GENERAL AVIATION AND AIR TAXITOTAL AND AVERAGE AIRFRAME HOURS PER ALL AIRCRAFTBY AIRCRAFT TYPERotorcraftPiston 4,357 3,039 0.9 69.8 0.9 8,406,120 3.8 1,929.3 3.81 Eng: Turbine 5,790 4,537 0.7 78.4 0.7 28,835,146 2.0 4,980.2 2.0Multi-Eng: Turbine 1,315 1,151 0.4 87.5 0.4 5,297,459 2.8 4,028.5 2.8Turbine: Total 7,104 5,689 0.6 80.1 0.6 34,132,605 1.8 4,804.7 1.8Rotocraft: Total 11,461 8,728 0.7 76.2 0.7 42,538,725 1.7 3,711.6 1.7Other AircraftGliders 3,149 2,074 1.3 65.9 1.3 3,582,916 4.9 1,137.8 4.9Lighter-than-air 6,903 4,380 2.4 63.5 2.4 1,550,669 14.4 224.6 14.4Other Aircraft: Total 10,052 6,454 1.9 64.2 1.9 5,133,585 6.6 510.7 6.6Page 6 - 3Table 6.1Aircraft Estimate of Percent Estimate of Percent Estimate of Percent Estimate of PercentAIRCRAFT TYPE Population Number Standard Percent Standard Total Standard Average StandardSize Active Error Active Error Airframe Error Airframe ErrorHours Hours2005 GENERAL AVIATION AND AIR TAXITOTAL AND AVERAGE AIRFRAME HOURS PER ALL AIRCRAFTBY AIRCRAFT TYPEExperimentalAmateur 33,856 19,817 3.9 58.5 3.9 17,775,191 34.5 525.0 34.5Exhibition 2,915 2,120 1.4 72.7 1.4 5,415,336 8.0 1,857.7 8.0Other 2,335 1,691 1.0 72.4 1.0 7,482,954 8.7 3,204.7 8.7Experimental: Total 39,106 23,627 3.0 60.4 3.0 30,673,481 17.1 784.4 17.1Light-sport 192 170 0.3 88.5 0.3 24,936 17.3 129.9 17.3Total All Aircraft 294,123 224,352 1.5 76.3 1.5 864,357,944 1.2 2,938.8 1.2Table Notes:Beginning in 2004, commuter activity is excluded from all estimates. 2003 and prior, commuter activity was included in the AirTaxi use category.The small number of aircraft in some of the 'other' categories (e.g., "Piston: Other," "Turbojet: Other") may result in relatively high standarderrors for estimates of the number of active aircraft and hours flown. For this reason estimates reported for 'other' categories may varygreatly from year to year and should be evaluated with caution.Columns may not add to totals due to rounding procedures.Page 6 - 4