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Flight Evaluations of the Effect of Advanced Control Systems and Displays on the Handling Qualities of a General Aviation Airplane
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Abstract
Flight tests have shown that, by means of improved displays and advanced control systems, it is possible to transform a typical light airplane into a flying machine that borders on being perfect from a handling-qualities standpoint. A flight-director display and an attitude-command control system used in combination transformed a vehicle with poor handling qualities during ILS approaches in turbulent air into a vehicle with extremely good handling qualities. The attitude-command control system also improved the ride qualities of the airplane. A rate-command control system was less beneficial than an attitude-command control system.
Although this paper deals primarily with general aviation aircraft, the results presented pertain to other types of aircraft. Short-takeoff-and-landing (STOL) aircraft would be a natural application of the control systems because, as a result of their low speeds, they encounter many of the handling-qualities problems noted on light aircraft. The improved ride qualities should be of interest to all airline operations, and for STOL aircraft in particular, because of their prolonged exposure to low-altitude turbulence.
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Citation
Loschke, P., Barber, M., Jarvis, C., and Enevoldson, E., "Flight Evaluations of the Effect of Advanced Control Systems and Displays on the Handling Qualities of a General Aviation Airplane," SAE Technical Paper 720316, 1972, https://doi.org/10.4271/720316.Also In
References
- Barber M. R. Jones C. K. Sisk T. R. Haise F. W. “An Evaluation of the Handling Qualities of Seven General-Aviation Aircraft.” NASA TN D-3726 1966
- Loschke P. C. Barber M. R. Jarvis C. R. Enevoldson E. K. “Handling Qualities of Light Aircraft With Advanced Control Systems and Displays.” NASA Aircraft Safety and Operating Problems 1 NASA 1971 189 206
- “Airplane Strength and Rigidity Reliability Requirements, Repeated Loads, and Fatigue.” Mil. Spec. MIL-A-8866(ASG) May 18 1960
- “IFR Supplement-United States.” DOD FLIP (Enroute), ACIC, U. S. Air Force April 1 1971