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 aircraft position altitude rate command altitude select Ames Research Center AUTO mode automatic capture Coll collective pitch control laws control stick steering control system CSS mode cyclic stick data adapter deg/cm deg/in deg/deg deg/deg/sec deg/sec deg/sec/deg digital avionics system disconnect links display functions failure feed forward filtered flight director Flight Systems Division flight-control flightpath angle fly-by-wire frequency glide slope guidance system HARDOVER Helix landing hold mode hover interfaces letdown Liden m/sec ft/sec microwave landing system mode select panel model-following MODILS Moffett Field NASA navigation original gains parallel actuator parallel servo command pedals and collective pilot Pit3h pitch and roll pitch attitude command pitch rate rad/sec 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 system performance TACAN THETA THTC touchdown point true airspeed V/STOLAND system X-Y plot