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The Effect on Stability and Control of a Pusher Propeller Behind Conventional Tail Surfaces as Determined by Tests of a Powered Model in the Free-flight Tunnel

Thomas A Hollingworth

Abstract

Report presenting an investigation of the effects on stability and control of a pusher propeller behind conventional horizontal and vertical tail surfaces in the free-flight tunnel by tests of a scale model of a submerged-engine pusher airplane. The investigation consisted of flight and balance tests at windmilling and high-power conditions with a partial-span Zap extensible flap extended and retracted. Results regarding the longitudinal stability, longitudinal control, stalling characteristics, lateral stability, and lateral control are provided.

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Key concepts: Longitudinal static stability, Propeller, Airplane, Flight control surfaces, Stability (learning theory), Engineering, Structural engineering, Power (physics)