首页> 美国政府科技报告 >Towing-Tank Tests on a Large Six-engine Flying Boat Seaplane, to Specification 10/46 (Princess) PART II Porpoising Stability, Spray and Air Drag Tests, with Improved Step Fairing, Afterbody Design and Aerodynamic Modifications
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Towing-Tank Tests on a Large Six-engine Flying Boat Seaplane, to Specification 10/46 (Princess) PART II Porpoising Stability, Spray and Air Drag Tests, with Improved Step Fairing, Afterbody Design and Aerodynamic Modifications

机译:大型六引擎飞船水上飞机的拖曳水箱测试,符合规格10/46(公主)第二部分海豚稳定性,喷雾和空气阻力测试,改进的阶梯整流,后体设计和空气动力学修改

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Further model tests were made on the Princess flying boat to :—n(a) improve the main-step fairing in order to reduce air drag while retaining satisfactory porpoising stability atnhigh water speeds,n(b) reduce the mid-planing porpoising instability found with the hull lines tested in Part I of this report (R. & M. 2641),n(c) test the effect of increased wing and tailplane areas,n(d) predict more accurately the full-scale performance of the final hull form by representing more closely the anticipated full-scale conditions of lift, slipstream and damping in pitch.nThe tank tests were made in sheltered water conditions in the Seaplane Towing Tank, Royal Aircraft Establishment, Farnborough, on a dynamic model, and parallel tunnel tests on the step-fairing design were made in the Saro Wind Tunnel at Osborne.

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