2013•NASA STI Repository (National Aeronautics and Space Administration)Open access

Free-Spinning-Tunnel Investigation of a 1/24-Scale Model of the Grumman AF-2s, 2w Airplane

Walter J. Klinar, Jack Wilson

Abstract

An investigation of the spin and recovery characteristics of a 1/24-scale model of the Grumman AF-2S, -2W airplane was conducted in the Langley 20-foot free-spinning tunnel. The effects of controls on the erect and inverted spin and recovery characteristics for a range of possible loadings of the.airplane were determined. The effect of a revised-tail installation (small dual fins added to the stabilizer of the original tail and the vertical-tail height of the original tail increased) and the effect of various ventral-fin and antispin-fillet installations were determined. The investigation also included spin-recovery parachute tests.

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Key concepts: Airplane, Spinning, Scale model, Spin (aerodynamics), Engineering, Physics, Aerospace engineering, Mechanical engineering