A parametric analysis of visual approaches for helicopters
Gene C. Moen, Daniel J. DiCarlo, Kenneth R. Yenni, United States. National Aeronautics and Space Administration
National Aeronautics and Space Administration, 1976 - Transportation - 39 pages
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00 Range g 80 knots acceleration aircraft airspeed and altitude airspeed initial condition altitude conditions altitude profiles approach profiles approaches by helicopter average ground-speed profiles characteristic shape Computer-generated deceler deceleration maneuver different airspeed exponential term flight investigation flight-test data flight-test results following equation functions of range g uni0s hover initial airspeed Initial altitude Initial approach airspeed initial deceleration level initial ground speed instrument approach studies landing pad Langley Research Center mathematical relationships matrix Maximum pitch maximum values NASA nine sets nominal deceleration profiles nominal pitch Nominal pitch-attitude profiles Number of approaches parameter parametric plot peak value physiological cues pitch acceleration pitch attitude pitch rate pitch-axis control plot profile results profiles fig profiles for different radar Range 00 range of approximately sets of initial shown in figure speed at 850 standard deviation subelements test subject U.S. Army Air U.S. Customary Units visual approaches visual deceleration profiles VTOL Yenni