| Attack Helicopter Evaluation AH-56A Cheyenne Compound Helicopter |
JUN 1972 |
153 pages |
| Authors:
John N. Johnson; Gary L. Bender; Randy D. McClellan; John R. Burden; Morrie E. Larsen; ARMY AVIATION SYSTEMS TEST ACTIVITY EDWARDS AFB CA
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 | The US Army Aviation Systems Test Activity (USAASTA) conducted an Attack Helicopter Evaluation of the AH-56A Cheyenne Compound Helicopter during the period 15 April to 15 June 1972. The AH-56A was tested at Yuma Proving Ground, Arizona and Mammoth Lakes, California. This evaluation was conducted to provide data for use in determining Advanced Aerial Fire Support System effectiveness model inputs, validating material need requirements, and validating contractor claims. The forward ... |
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| Limited Performance Tests CH-54B (Tarhe) Helicopter |
FEB 1973 |
55 pages |
| Authors:
John N. Johnson; Vernon L. Diekmann; Jerome M. Johnson; Robert K. Merrill; James S. Reid; ARMY AVIATION SYSTEMS TEST ACTIVITY EDWARDS AFB CA
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| The United States Army Aviation Systems Test Activity conducted a limited performance evaluation and airspeed envelope expansion of the Sikorsky CH-54B (Tarhe) helicopter. Hover performance, level flight performance, airspeed calibration, and envelope expansion testing were conducted without the engine air particle separator installed. Testing required 13.6 productive flight hours. At takeoff power, the standard-day out-of-ground-effect and in-ground-effect (10-foot) hover ceilings were 6600 and 9050 feet, respectively, at maximum gross weight ... |
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| Engineering Evaluation, AH-56A Compound Helicopter with Advanced Mechanical Control System. |
MAR 1973 |
82 pages |
| Authors:
John N. Johnson; John R. Burden; Gary L. Bender; ARMY AVIATION SYSTEMS TEST ACTIVITY EDWARDS AFB CA
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| The United States Army Aviation Systems Test Activity conducted an engineering evaluation of the AH-56A compound helicopter with the advanced mechanical control system. This evaluation was primarily a handling qualities evaluation to determine the relative merits of the advanced mechanical control system versus the improved control system previously tested. The testing consisted of 20 test flights totaling 18.2 hours. The advanced mechanical control system corrected the major problem of the ... |
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