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Raked circular-cone aerobraking orbital transfer vehicleAn aerobraking orbital transfer vehicle (AOTV) (80) has aerobrake (82) with a blunted raked-off circular-cone configuration. The other components of the AOTV, including command/control module (95), fuel tanks (86, 88, 89 and 91), rocket engines (94) and afterbody (84), are positioned substantially along resultant force axis (104) of the AOTV (80). The axis (104) coincides with the resultant (sum of lift and drag) force vector. Afterbody (84) is mounted behind the aerobrake (82) with its length extending rearwardly from the aerobrake. The base flow clearance angle .phi. of the aerobrake (80) is 25.degree., thus allowing the afterbody (84) to extend rearwardly from the aerobrake (82) to a much greater extent than possible with a raked-off elliptic-cone aerobraking shield configuration. Afterbody size limitation and other problems associated with the raked-off elliptic-cone aerobraking shield configuration are alleviated by the combination of the aerobrake shape and positioning of the fuel tanks (86, 88, 89 and 91), rocket engines (94) and afterbody (84).
Document ID
20080008788
Acquisition Source
Headquarters
Document Type
Other - Patent
Authors
Park, Chul
Davies, Carol B.
Date Acquired
August 24, 2013
Publication Date
February 27, 1990
Subject Category
Aeronautics (General)
Report/Patent Number
Patent Number: US-Patent-4,903,918
Patent Application Number: US-Patent-Appl-SN-348081
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
US-Patent-4,903,918
Patent Application
US-Patent-Appl-SN-348081
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