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This study proposes a flight control system for tailless unmanned combat aerial vehicles (UCAVs) and applies it to a representative example: the UCAV1303, an unstable blended wing body (BWB) aircraft. The UCAV1303 has no tail wing and a large sweepback angle, as a result of which it shows highly nonlinear aerodynamic characteristics such as wing rock and the pitch break phenomenon. In particular,...
There is renewed interest in tail-sitter airplanes on account of their vertical takeoff and landing capability as well as their efficient horizontal flight capabilities. The transition from a vertical near-hover mode to a horizontal cruise mode is a critical component of the tail-sitter flight profile. In practice, this transition is often achieved by a stall-and-tumble maneuver, which is somewhat...
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