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Flight Path Synthesis and HUD Scaling for V/STOL Terminal Area Operations
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1995-04-01
[PDF-810.13 KB]
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NTL Classification:NTL-AVIATION-AVIATION
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Abstract:A two circle horizontal flightpath synthesis algorithm for Vertical/Short
Takeoff and Landing (V/STOL) terminal area operations is presented. This
algorithm provides a flight-path that is tangential to the aircraft's velocity
vector at the instant of flightpath select and has continuous curvature. The
algorithm corrects deficiencies noted in tests conducted with the V/STOL
Systems Research Aircraft (VSRA) using a single circle algorithm described in
NASA TM 104027. In addition, a more general vertical flightpath synthesis
algorithm is presented, aimed primarily at minimizing the rapid increase of
pilot workload during the final phase of decelerating transition just prior to
acquiring the station-keeping point. Finally, a new technique for lateral
scaling of a V/STOL Head Up Display (HUD) is presented, aimed at minimizing the
inevitable anomalies that such scaling produces. All the above named items
have been tested in flight with the VSRA, and all have produced improvements.
46p.
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