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Space Shuttle autoland designThe Orbiter Autoland system is activated at 10,000 ft altitude and performs energy control through speedbrake modulation, vertical path tracking with acceleration commands to the pitch control system, lateral path tracking through bank angle commands to the roll control system, and brings the vehicle to main gear touchdown. A nominal 19 degree glide slope is flown down to 2000 ft, followed by a 1.5 deg path to flare and subsequent soft landing. The flight path is similar to that which a pilot would fly, a feature which increases safety factors should manual takeover be necessary during landing maneuvers. A block diagram of the autoland control interfaces is provided, and attention is given to the use of a reference trajectory, the guidance laws, lateral guidance, the speed control system, pitch rate control, and the rollout system. Conditions and instrument indications leading to pilot takeover are outlined.
Document ID
19820056897
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Tsikalas, G. M. (Sperry Corp. Sperry Flight Systems Div., Phoenix, AZ, United States)
Date Acquired
August 10, 2013
Publication Date
August 1, 1982
Subject Category
Space Transportation
Report/Patent Number
AIAA PAPER 82-1604
Meeting Information
Meeting: Guidance and Control Conference
Location: San Diego, CA
Start Date: August 9, 1982
End Date: August 11, 1982
Sponsors: American Institute of Aeronautics and Astronautics
Accession Number
82A40432
Funding Number(s)
CONTRACT_GRANT: NAS9-14974
Distribution Limits
Public
Copyright
Other

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