V/STOLAND avionics system flight-test data on a UH-1H helicopter
United States. National Aeronautics and Space Administration. Scientific and Technical Information Office, Fredric A. Baker, Ames Research Center
National Aeronautics and Space Administration, Scientific and Technical Information Office, 1980 - Technology & Engineering - 61 pages
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60 knots acceptance tests actuator commands aircraft position altitude rate command altitude select Ames Research Center AUTO mode automatic bank angle command Bell UH-1H helicopter capture Coll collective pitch control laws control stick steering control system CSS mode cyclic stick data adapter deg/deg deg/deg/sec deg/sec deg/sec/deg digital avionics system disconnect links display functions failure feed forward filtered flight director flight-control flightpath angle fly-by-wire frequency glide slope guidance system HARDOVER hold mode hover interfaces letdown m/sec ft/sec microwave landing system mode select panel model-following MODILS Moffett Field NASA navigation original gains parallel actuator pedals pilot Pit2h pitch and roll pitch attitude command pitch rate reference flightpath segment select/hold sensor series actuators shown in figure simulator software program Sperry Flight Systems Sperry Rand Corporation step responses straight-in approach Straight-in landing performance system performance TACAN touchdown point true airspeed V/STOLAND digital avionics V/STOLAND system X-Y plot