摘要: A flight test investigation was conducted to evaluate the feasibility of an aerodynamic spoiler system installed on a Piper PA-30 airplane for deterring stall, and to determine its possibilities as a stall deterrent for other ligh... 展开 A flight test investigation was conducted to evaluate the feasibility of an aerodynamic spoiler system installed on a Piper PA-30 airplane for deterring stall, and to determine its possibilities as a stall deterrent for other light twin-engine general aviation airplanes. Flight tests were conducted for the airplane without the spoiler installed, with the spoiler operated manually, and with the spoiler operated automatically. Test results were obtained different c.g. locations, flap positions, and engine thrust. Flight test maneuvers included approaches to stall from straight level flight, climbs, descents, turns, slips and skids with both engines operating and with simulated single engine operation. Tests also included takeoffs and landings. Test results are discussed. 收起