Validation of a flight simulation model of the AH-64 Apache attack helicopter against flight test dataThe FLYRT simulation model of the U.S. Army/McDonnell Douglas AH-64 Apache attack helicopter is validated against flight test data. The approach used for validation involves matching static trim attitudes and control positions and driving the model with measured control time histories to compare dynamic responses such as angular rates and normal acceleration. Flight test data is processed to determine kinematic consistency in the angular degrees of freedom. Modeling problems associated with aerodynamic interaction of the main rotor wake on the horizontal stabilator and engine response timing are identified. Appropriate model updates are made which result in good overall model correlation throughout the flight regime investigated.
Document ID
19910032683
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Harding, J. W. (McDonnell-Douglas Helicopter Co. Mesa, AZ, United States)
Bass, S. M. (McDonnell Douglas Helicopter Co. Mesa, AZ, United States)