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A manual-control approach to development of VTOL automatic landing technology.The operation of VTOL aircraft in the city-center environment will require complex landing-approach trajectories that insure adequate clearance from other traffic and obstructions and provide the most direct routing for efficient operations. As part of a larger program to develop the necessary technology base, a flight investigation was undertaken to study the problems associated with manual and automatic control of steep, decelerating instrument approaches and landings. The study employed a three-cue flight director driven by control laws developed and refined during manual-control studies and subsequently applied to the automatic approach problem. The validity of this approach was demonstrated by performing the first automatic approach and landings to a predetermined spot ever accomplished with a helicopter. The manual-control studies resulted in the development of a constant-attitude deceleration profile and a low-noise navigation system.
Document ID
19730050273
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Kelly, J. R.
Niessen, F. R.
Garren, J. F., Jr.
(NASA Langley Research Center Hampton, Va., United States)
Date Acquired
August 7, 2013
Publication Date
May 1, 1973
Subject Category
Navigation
Report/Patent Number
AHS PREPRINT 742
Meeting Information
Meeting: Annual National Forum
Location: Washington, DC
Start Date: May 9, 1973
End Date: May 11, 1973
Sponsors: American Helicopter Society
Accession Number
73A35075
Distribution Limits
Public
Copyright
Other

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