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Preliminary Investigation of the Effectiveness of a Sliding Flap in Deflecting a Propeller Slipstream Downward for Vertical Take-off

Richard E. Kuhn, Kenneth P Spreemann

Abstract

An investigation of the effectiveness of a wing equipped with a sliding flap and a leading-edge slat in deflecting a propeller slipstream downward for vertical take-off was conducted in a static-thrust facility. Results regarding the characteristics with leading-edge slat and with extended flap chord are provided.

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Key concepts: Chord (peer-to-peer), Propeller, Thrust, Geology, Leading edge, Marine engineering, Wake, Engineering