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ARTIFICIAL STALL WARNING FOR SAILPLANES

J. M. Cnossen

Abstract


As concept this stall warning device was honored as the best entry for the OSTIV competition in 1987 for development of a stall warning device for sailplanes. This system is based on the measurement of a local dynamic pressure at a small orifice behind and below the nose of the sailplane. The measurement of a local dynamic pressure, however, makes the system dependent of angle of attack and the flight speed. When the system is calibrated for a low wingloading, the system does not warn in case of high wingloading (e.g. by water ballast, one/two seater).

Keywords


Aerodynamics, Design, Safety

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