A flight investigation was undertaken to study the problems associated with manual and automatic control of steep, decelerating instrument approaches and landings under simulated instrument conditions. The study was conducted with a research helicopter equipped with a three-cue flight-director indicator. The scope of the investigation included variations in the flight-director control laws, glide-path angle, deceleration profile, and control response characteristics. Investigation of the automatic-control problem resulted in the first automated approach and landing to a predetermined spot ever accomplished with a helicopter. Although well-controlled approaches and landings could be performed manually with the flight-director concept, pilot comments indicated the need for a better display which would more effectively integrate command and situation information. (Author)
Flight Investigation of Manual and Automatic VTOL Decelerating Instrument Approaches and Landings
1974
42 pages
Report
No indication
English
VTOL Flight Investigation to Develop a Decelerating Instrument Approach Capability
SAE Technical Papers | 1969
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