omniomni/omni-engineering huggingface dataset:
Propulsion Wind Tunnel Facility. The Propulsion Wind Tunnel Facility, located at Arnold Engineering Development Complex, Arnold Air Force Base, Tennessee,  holds three wind tunnels: the 16-foot transonic (16T), 16-foot supersonic (16S), and the aerodynamic 4-foot transonic (4T) tunnels. The facility is devoted to aerodynamic and propulsion integration testing of large-scale aircraft models. The tunnels are powered by a large compressor plant which allows the wind tunnels to run for extended periods of time.  The test unit is owned by the United States Air Force and operated by Aerospace Testing Alliance.

The wind tunnel test facility has been designated a landmark by the American Society of Mechanical Engineers because of its engineering significance.

Propulsion Wind Tunnel 16T 
16T is a transonic wind tunnel that can  be configured for Mach numbers from 0.05 to 1.60. It is primarily used to test aerodynamics, propulsion integration, and weapons integration test capabilities that are needed for accurate prediction of flight system performance. The 16-foot-square, 40-foot long test section can simulate unit Reynolds numbers from approximately 0.03 to 7.3 million per foot or altitude conditions from sea level to 76,000 feet. The tunnel can also test air-breathing engines and rockets through the use of a scavenging system to remove exhaust from the flow stream.

Propulsion Wind Tunnel 16S 
16S is a supersonic wind tunnel that can be configured for Mach numbers from 1.5 to 4.750. The test section is also 16-foot-square and 40-foot long. The facility can simulate unit Reynolds numbers from approximately 0.1 to 2.4 million per foot or altitude conditions from 43,000 to 154,000 feet. Currently 16S is in the standby state.  16S ran again for the first time in more than 10 years on May 7, 2015, after an 18 month return to service effort.

Aerodynamic Wind Tunnel 4T 
4T is a transonic wind tunnel test unit which has a 4-ft by 4-ft by 12.5-ft long test section. Mach number capability extends from 0.2 to 2.0. The tunnel can simulate altitudes from sea level to 98,000 feet and can provide Reynolds numbers up to 7.1 million per foot.

See also 
Subsonic and transonic wind tunnel

References

External links
Arnold Engineering Development Center (official)

Wind tunnels
Research installations of the United States Air Force
Military in Tennessee
Aero-propulsion Systems Test Facility. The Aero-propulsion Systems Test Facility, located at Arnold Engineering Development Complex is a unique national facility designed to test aircraft propulsion systems in true mission environments without leaving the ground.  The test unit is owned by the United States Air Force and operated by National Aerospace Solutions.

History 
The need for an advanced ground-based, propulsion test facility was identified by a joint NASA and Department of Defense Aeronautics and Astronautics Coordinating Board in the 1960s. The Aero-propulsion Systems Test Facility was specifically designed for testing integrated, full-scale propulsion systems under simulated flight conditions. Construction begun in 1977 and took seven years to complete. Following integration and activation, the facility reached initial operational capability in September 1985.

Capabilities 
The Facility can simulate altitudes up to 75,000 feet, at speeds up to Mach 2.3, for engines rated up to 100,000 pounds of thrust. The air supply compressors can provide up to 1,500 pounds of air per second into the test cell to simulate airspeeds up to 1,800 miles per hour. The compressors, totaling 215,000 horsepower, are started by one of the largest variable frequency starting systems in the world.  An additional 960 pounds per second of airflow is also available by drawing outside air directly into the C-2 test cell.

Inlet air to the tested propulsion systems can be conditioned up to 450 degrees Fahrenheit by large combustion air heaters. These heaters can burn either diesel fuel or waste aviation fuel and generate up to 1,000,000,000 BTU per hour. Exhaust gases are cooled by direct-contact water spray, which reduces the temperature to 200 degrees Fahrenheit. Additional water spray cools and cleans the exhaust gas to less than 150 degrees Fahrenheit before it enters the exhaust compressors.

See also 
Arnold Air Force Base
Jet Engine

References

External links
Arnold Engineering Development Center (official)

Research installations of the United States Air Force
Propulsion
Military in Tennessee
John Frederick Sytsma. John Frederick Sytsma (22 July 1921 – 29 May 2007) was President of the Brotherhood of Locomotive Engineers (BLE) from 1976 to 1986.

Early years

John Frederick Sytsma was born on 22 July 1921 in Paterson, New Jersey.
At the age of 19 he obtained work as a fireman with the New York, Susquehanna and Western Railway (NYS&W).
Sytsma married Phyllis June Stingle in 1942.
During World War II (1939–1945) he served in an Army Railway Operating Battalion and ran engines in the Philippines and Korea.
He was promoted to Engineer in 1946, and ran every class of engine for the railroad.
For a period he worked for the American Surety Company of New York.
He studied at the New York Insurance Institute and the State College of Paterson, New Jersey, where he studied business administration and business law.

Union career
In 1954 Sytsma joined the Brotherhood of Locomotive Engineers in Hawthorne, New Jersey.
In 1955 he was elected General Chairman for the NYS&W engineers.
In 1956 he moved to Cleveland, Ohio, and began working full-time for the BLE as Administrative Assistant to the President of the BLE.
He was elected General Secretary-Treasurer of the BLE in 1962, holding this position until 1974.
He was First Vice President of the union between 1974 and 1976.
At that time Burrell N. Whitmire was president of the union.

Sytsma was elected President of the BLE in 1976, and was reelected in 1981.
As president he initiated programs to fight abuse of drugs and alcohol by railway workers, while resisting random checks of employees using breathalyzers and sniffer dogs.
He also worked for improvements in wages, safety standards and working conditions.
In September 1981 President Ronald Reagan imposed a three-month cooling-off period and three-year no-strike agreement to end a railway worker's dispute. 
This was agreed by most of the unions. Sytsma held out for a guarantee that locomotive engineers would retain their 15% salary differential over other train crew members.
In 1982 Sytsma was named a member of the National Labor Advisory Council of the Republican National Committee.
In May 1986 Sytsma was involved in negotiations with Amtrak over a dispute that could have led to a strike affecting hundreds of thousands of commuters on the east coast of the US.

In February 1985 the union held a referendum on recalling Sytsma due to allegations of abuse of office. It was narrowly defeated.
Sytsma ran for a third term as president of the 26,000-member union in August 1986.
He did not win reelection, and was replaced by Robert E. Delaney.

Later years

Sytsma and his wife moved to Salt Lake City after his retirement from the union in 1986.
He worked with the Salt Lake County Fire Department for many years as a volunteer photographer, until losing his sight due to macular degeneration.
His wife, Phyllis, died on 10 January 2004 at the age of 81.
Sytsma died of natural causes on 29 May 2007.
He was aged 84.

Bibliography

References
Citations

Sources

1921 births
2007 deaths
Brotherhood of Locomotive Engineers and Trainmen people
People from Paterson, New Jersey
Trade unionists from New Jersey
United States Army personnel of World War II
AEDC Space Chambers Test Facility. The AEDC Space Chambers Test Facility, located at Arnold Engineering Development Complex, contains several test units used for simulating space conditions. The facility has a variety of test cells to accommodate various sized test articles. Test articles range in size from the sensor level all the way up to full-scale space systems. All test units in the facility are owned by the United States Air Force and currently operated by Aerospace Testing Alliance.

7V 
The 7V chamber is a deep space environment simulation test facility designed to test high performance interceptors and surveillance sensors at the conditions of deep space. The facility consists of a 7-foot-diameter by 21-foot-long chamber containing a full gaseous helium thermal shroud. The chamber is surrounded by a Class 100 Clean Room with an adjoining Class 1000 build-up area. The 7V chamber can be conditioned from atmospheric pressure to 10−7 torr.

10V 
The 10V chamber is 10-ft. diam. by 30-ft. long and capable of being conditioned  from atmospheric pressure to 10−7 torr. The test article can be placed in a class 100 clean room while the rest of the facility is housed in a class 10,000 clean room. The chamber itself is designed for testing space senors that look at various objects against the dark sky.

Mark 1 
The Mark 1 Test Facility is a 42-foot-diameter by 82-foot space simulation chamber for full-scale space systems testing. The chamber can be conditioned from atmospheric pressure to 5x10−7 torr. The chamber can support test articles up to 200,000 pounds

See also 
Arnold Air Force Base
Vacuum chamber
Spaceflight

References

External links 
Arnold Engineering Development Center (official)

Centers of the United States Air Force
AEDC Sea Level Test Cells. The AEDC Sea Level Test Cells, located at Arnold Engineering Development Complex, is a collection of test cells used to economically perform durability testing on large augmented turbine engines at near sea level conditions.  All test units in the facility are owned by the United States Air Force and currently operated by National Aerospace Solutions.

SL2 and SL3 
The SL2 and SL3 cells are approximately 24 feet in height and width and 60 feet in length.  In addition to running ambient pressure inlet conditions, they also provide the capability of using one of the complex's air plants to supply inlet pressures above ambient thus allowing testing at up to Mach 1.2.  Inlet temperature capability extends from ambient to 120 degree Fahrenheit when running in the atmospheric inlet mode and from 20 to 270 degrees Fahrenheit in pressurized mode.  Both cells can accommodate engines that produce up to 70,000 pounds of thrust. In recent years, SL-2 has tested the F100 engine for the F-15 Eagle, F-16 Fighting Falcon, and the F119 engine for the F-22A Raptor.  SL-3 has also tested the Pratt & Whitney F100 engine, as well as the Pratt & Whitney F135 engine for the F-35.

See also 
Arnold Air Force Base
Flight Level
 Turbofan

References

External links 
Arnold Engineering Development Center (official)

Centers of the United States Air Force
Clifford C. Hastings. Clifford Cornelius Hastings (June 25, 1882 – September 28, 1946) was an American electrical engineer, businessman and politician from New York.

Life
He was born on June 25, 1882, in Rensselaer County, New York, the son of Milon S. Hastings and Edith R. (Snyder) Hastings. He attended the public schools, and then learned electrical engineering by correspondence course. He worked for the Troy City Railway Company, and later for United Traction. In his leisure time, he built a hydro-electric power station in West Sand Lake. He incorporated the Wynantskill Hydro-Electric Company, and supplied electric light to the surrounding areas. He was President of the company until 1926 when he sold out, and retired from business.

He then entered politics as a Republican, and was Supervisor of the Town of Sand Lake from 1927 to 1936.

Hastings was a member of the New York State Senate (31st D.) from 1937 to 1944, sitting in the 160th, 161st, 162nd, 163rd and 164th New York State Legislatures. On June 3, 1944, he was appointed by Gov. Thomas E. Dewey as Treasurer of Rensselaer County, to fill the vacancy caused by the resignation of Avery G. Hall. In November 1944, he was elected to a full term, and remained in office until his death.

He died on September 28, 1946, at his home in West Sand Lake, New York.

Sources

External links
 Clifford Hastings brings electricity to Sand Lake from the Historical Highlights of the Sand Lake Historical Society]
 Portrait of Milon S. Hastings in Sand Lake Revisited by Mary D. French & Andrew St. J. Mace ("Images of America" series, Arcadia Publishing, 2007; pg. 40)

1882 births
1946 deaths
Republican Party New York (state) state senators
People from Sand Lake, New York
Town supervisors in New York (state)
20th-century members of the New York State Legislature
Geometric terms of location. Geometric terms of location describe directions or positions relative to the shape of an object. These terms are used in descriptions of engineering, physics, and other sciences, as well as ordinary day-to-day discourse.

Though these terms themselves may be somewhat ambiguous, they are usually used in a context in which their meaning is clear. For example, when referring to a drive shaft it is clear what is meant by axial or radial directions. Or, in a free body diagram, one may similarly infer a sense of orientation by the forces or other vectors represented.

Examples
Common geometric terms of location are:

 Axial – along the center of a round body, or the axis of rotation of a body
 Radial – along a direction pointing along a radius from the center of an object, or perpendicular to a curved path.
 Circumferential (or azimuthal) – following around a curve or circumference of an object. For instance: the pattern of cells in Taylor–Couette flow varies along the azimuth of the experiment.
 Tangential – intersecting a curve at a point and parallel to the curve at that point.

 Collinear – in the same line
 Parallel – in the same direction.
 Transverse – intersecting at any angle, i.e. not parallel.
 Orthogonal (or perpendicular) – at a right angle (at the point of intersection).

 Elevation – along a curve from a point on the horizon to the zenith, directly overhead.
 Depression – along a curve from a point on the horizon to the nadir, directly below.

 Vertical – spanning the height of a body.
 Longitudinal – spanning the length of a body.
 Lateral – spanning the width of a body. The distinction between width and length may be unclear out of context.

 Adjacent – next to
 Lineal – following along a given path. The shape of the path is not necessarily straight (compare to linear). For instance, a length of rope might be measured in lineal meters or feet. See arc length.

 Projection / Projected - in architecture, facade sticking out; convex.
 Recession / Recessed - the action of receding; away from an observer; concave.

See also

References

Orientation (geometry)
Position
Mantrap (access control). A mantrap, security mantrap portal, airlock, sally port or access control vestibule is a physical security access control system comprising a small space with two sets of interlocking doors, such that the first set of doors must close before the second set opens. Airlocks have a very similar design, allowing free ingress and egress while also restricting airflow.

In a manual mantrap, a guard locks and unlocks each door in sequence. An intercom and/or video camera are often used to allow the guard to control the trap from a remote location.

In an automatic mantrap, identification may be required for each door, sometimes even different measures for each door. For example, a key may open the first door, but a personal identification number entered on a number pad opens the second.  Other methods of opening doors include proximity cards or biometric devices such as fingerprint readers or iris recognition scans. Time of Flight sensors are used in high security environments. Newer stereovision detection systems are often employed.

Some security portal mantraps use dual authentication, employing 2 separate readers (security card plus biometrics, for example). This is very typical in the data center security entrance control environment. 

Security mantrap portals typically offer options for all steel construction and BR (bullet/ballistics) or RC (burglar protection) construction including thick laminated curved glass.

Metal detectors are often built in to prevent the entrance of people carrying weapons. This use is particularly frequent in banks and jewelry shops.

Turnkey systems are sometimes provided by some suppliers due to the need for specially trained installers.

Fire codes require that automatic mantraps allow exit from the intermediate space while denying access to a secure space such as a data center or research laboratory. A manually-operated mantrap may allow a guard to lock both doors, trapping a suspect between the doors for questioning or detainment.

See also 
 Mantrap (snare)
 Sally port
 Optical turnstile

References

External links
 
 "The AI Revolution and What it Means for Data Center Security Design" (McGovern, October 2024)
Access control
Rooms
Doors
Robbins & Myers. Robbins & Myers, Inc. is a manufacturer of engineered equipment and systems in global energy and industrial markets. There are basically two segments operating in the company, namely Energy Services and Process and Flow Control. In February 2013, National Oilwell Varco, Inc. acquired Robbins & Myers Inc.

Products 

There are two segments in Robbins & Myers.
The company's Energy Services division provides T-3, critical well drilling equipment parts for drilling operations (such as production, pipeline transmission ) of oil and gas.
The company's Process and Flow Control division provides glass-lined reactors and storage vessels, industrial progressing cavity pumps, valve controls and grinders, fluid-agitation equipment.

Operations
In August 2012, Robbins & Myers, Inc. and National Oilwell Varco, Inc. agreed that National Oilwell Varco would acquire Robbins & Myers with about $2.5 billion in cash.  In February 2013, the acquisition was completed after antitrust clearance.

In 2001, the company purchased Romaco N. V. from Brian Fenwick-Smith, the company's founder.

In 2011, the Company sold Romaco Businesses to a group of funds led by Deutsche Beteiligungs AG.

References

External links 
 

Companies formerly listed on the New York Stock Exchange
Audiosim (software synthesizer). AudioSim is a virtual analog software synthesizer. It was released in 1996 by the German-Hungarian software company Audio Simulation. It was first available for DOS and supported SoundBlaster or Gravis Ultrasound Sound cards.

Description 

AudioSim contains 2 oscillators, 4 envelope generators, 2 LFOs and a self oscillating multimode filter. The parameters of the different modules are adjustable in real-time via the GUI using the mouse. The program also has MIDI support for Gravis Ultrasound and SoundBlaster cards.

Version 2.0 

 MIDI support for Sound Blaster cards
 Additional MIDI card support for use when using a buggy Sound Blaster MIDI
 Additional SINE waveform & PORTAMENTO to achieve more vintage sound
 Ring modulator usable parallel with synchronization and FM modulation
 Echo FX engine with delay & decay time

See also 

 Software synthesizer

References

External links 
 Audio Simulation web site
 AudioSim Information and demo version download
 
 

Software synthesizers
CCSDS File Delivery Protocol. CCSDS File Delivery Protocol (CFDP) is a file transfer protocol for use in space, e.g. between Earth and spacecraft in Earth orbit or between Earth and spacecraft on interplanetary missions.

The protocol is defined by CCSDS standard 727.0-B-4 and 727.0-B-5. It is also available as ISO standard 17355:2007.

References

Network file transfer protocols
Jamie Oag. James George Oag is a Scottish business entrepreneur.

Education
Oag was born in West Lothian in March 1966. He attended Armadale Academy then served an apprenticeship as a mechanic before attending Inverness College to study mechanical engineering. Further qualifications were achieved at the Robert Gordon University in Aberdeen and he gained a Master of Science degree in Instrument Analytical Science from the School of Applied Sciences in 1992.

Career
After completing his education, Oag spent seven years working as a Field Engineer with Halliburton, leaving the firm to found his own company, Optima Solutions in 1999. By February 2008 Optima had a staff of more than fifty employees and a 55 per cent share of the company was sold to Northern Industries for an eight figure sum. Later that year Oag took delivery of a Bugatti Veyron. The £810,000 vehicle was purchased as an investment but sold a few years later as Oag said "it wasn't helpful when meeting clients." Oag has gained several industry awards and Optima Solutions was awarded the Queen's Awards for Enterprise in 2009 in the category for International Trade.

In mid 2010, Oag purchased a £1 million share of SPEX, another Aberdeen company, which had been founded in 2009.  Oag retained a shareholding in SPEX and assumed the role of Chief Executive of the company in January 2014.

Optima was purchased by the American company Tetra Technologies in March 2012 for over £40 million. At that time Oag had a 42.3 per cent stake in the company.

Re-development of ideas gleaned from out of date patents has served Oag as an inspiration for innovative designs such as remote controls for domestic fire alarms.

Personal life
Dunecht House, a Category A listed building in Aberdeenshire, was purchased from Charles Anthony Pearson at the end of 2012 for £1.2 million. Oag married Yulia Sarycheva, a Russian business student, in a ceremony at the mansion's chapel during November 2012.

References
Citations

External links 
 

1966 births
Living people
People from West Lothian
People educated at Armadale Academy
Alumni of Robert Gordon University
Scottish company founders
20th-century Scottish businesspeople
21st-century Scottish businesspeople
Sauser P6E. The Sauser P6E is an American homebuilt aircraft that was designed and built by Donald Sauser of Tustin, California. The aircraft is an 82% scale reproduction of the 1920s Curtiss P-6 Hawk. When it was available the aircraft was supplied in the form of plans for amateur construction by the Sauser Aircraft Company.

Design and development
Like the aircraft it is patterned after, the Sauser P6E features a strut-braced biplane layout, a single-seat open cockpit with a windshield, fixed conventional landing gear with wheel pants and a single engine in tractor configuration.

The aircraft is made from welded steel tubing and wood, with its flying surfaces covered in doped aircraft fabric. Its  span wing has a wing area of . The acceptable power range is  and the standard engine used is a  Chevrolet small-block V-8 automotive conversion powerplant.

The Sauser P6E has a typical empty weight of  and a gross weight of , giving a useful load of . With full fuel of  the payload for the pilot and baggage is .

Operational history
Sauser P6Es have been registered with the US Federal Aviation Administration under a variety of type designations, making them hard to catalog. Types registered include Sauser QC, Johnson F11C-2PJ (built as a F11C-2 replica), Wooldridge Saco P6-E Hawk and Roof Curtis Hawk P6E.

Aircraft on display
March Field Air Museum -  donated by the designer's widow in 2002.

Specifications (Sauser P6E)

References

External links

P6E Replica
1990s United States sport aircraft
Single-engined tractor aircraft
Biplanes
Homebuilt aircraft
Replica aircraft