Army Preliminary Evaluation 1 and Research and Development Acceptance Test 1, AH-56A Cheyenne Compound Helicopter

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Abstract:

The Army Preliminary Evaluation I and a portion of the Reserach and Development Acceptance Test I were conducted periodically on the AH-56A Cheyenne compound helicopter. Primary test objectives were to gather stability and control data to provide an early assessment of the AH-56A, to assist in determining flight envelopes for future Army tests, and to examine previously identified problem areas. The capability of the pusher propeller to provide rapid deceleration and to control airspeed independently of dive angle is an excellent feature. Five deficiencies and 54 shortcomings were identified. Correction of the deficiencies should be a prerequisite for an airworthiness release for operational Army aviators, and correction of the shortcomings is desirable. Further testing of the AH-56A is recommended.

Author(s):
Dominick, Jr., Floyd L. ; Bender, Gary L. ; Mcclellan, Randy D. ; Hall, Gary C. ; Stringer, Paul G. ; Buss, Marvin W.
Author Organization(s):
ARMY AVIATION SYSTEMS TEST ACTIVITY EDWARDS AFB CA
Descriptive Note:
Final rept. 30 Jan-23 Dec 1971
Pagination:
0346

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
USAASTA-70-02, USAASTA-71-17
Project Number(s):
RDT/E-1-X-123625-D-192, USAAVSCOM-70-02
Monitor Series:
USAAVSCOM
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.3_Planning; JCA_7.2.1_Mitigate Lethal Effects; JCA_7.2_Mitigate; JCA_7_Protection; JCA_1.1_Force Management; JCA_1_Force Support; JCA_5.3.3_Develop Strategy; JCA_5.3.4_Develop Courses of Action; JCA_5.3.5_Analyze Courses of Action; JCA_5.3.2_Apply Situational Understanding; JCA_4.3_Maintain; JCA_5.6.3_Assess Achievement of Objectives; JCA_5.6_Monitor; JCA_5.5.2_Task; JCA_5.5_Direct; JCA_5.4.3_Establish Rule Sets; JCA_5.4_Decide; JCA_1.2.1_Training; JCA_5.2_Understand; JCA_1.2.5_Lessons Learned
Modernization Areas:
Microelectronics
Communities of Interest:
Weapons Technologies
Descriptor(s):
*HELICOPTERS, FLIGHT TESTING, STABILITY, MANEUVERABILITY, ROLL, ATTITUDE CONTROL SYSTEMS, TAKEOFF, AIRCRAFT LANDINGS, HOVERING, AERIAL PROPELLERS, FLIGHT SPEEDS, ACCEPTABILITY, HANDLING, YAW, FLIGHT CONTROL SYSTEMS, COCKPITS, MISSION PROFILES, FAILURE
Field(s)/Group(s):
Helicopters
Keyword(s):
*AH 56A AIRCRAFT, *H 56 AIRCRAFT, HELICOPTERS, PUSHER PROPELLERS
Report Date:
1972 Mar 01