01808cam a2200313Ma 4500011449500MiAaHDL20141009010000.0m d cr bn ---auaua041216s1971 dcua b f000 0 eng dsdr-uiuc6402671(OCoLC)647938467EGMSTFUIUUNAS 1.14:D-6126NASA-TN-D-6126Barker, L. Keith.Analysis of effects of spanwise variations of gust velocity on a vane-controlled gust-alleviation system /L. Keith Barker and Gene W. Sparrow.NASA TN D-6126Washington, D.C. :National Aeronautics and Space Administration :[For sale by the Clearinghouse for Federal Scientific and Technical, Springfield, Virginia 22151],1971.27 p. :ill. ;27 cm.NASA technical note ;D-6126Includes bibliographical references (p. 27).An analysis has been made of the effects of spanwise variations of gust velocity in isotropic turbulence on a gust-alleviation system which employs an angle-of-attack vane mounted ahead of the wing to sense the vertical gust velocity. The wing flaps were moved in response to the vane deflection by a linear second-order servosystem to produce a lift opposite to that produced by the gust. Consideration of spanwise variation of gusts has indicated design parameters (gain and natural frequency of flap servosystem and vane location) that give substantial reduction of the lift due to gusts.Mode of access: Internet.Weather vanes.Gust loads.Sparrow, Gene W.Langley Research Center.United States.National Aeronautics and Space Administration.01144950020101109165224.020141009010000.020141112165512.02025-01-02T19:06:41Z2025-01-02T18:30:02ZSDR-UIUCUNKNOWNloader.pl-003-020BKsdr-uiuc6402671uiugSDRUIUCuiug.30112106746933UIU6402671UIUUIUC20250102googleuiug.301121067469331971pdbibUS fed doc