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Tetrahedral landerAn apparatus and method is disclosed for decelerating and absorbing impact of a re-entry vehicle suitable for payloads that are relatively light as well as payloads weighing several tons or more. The apparatus includes four inflatable legs displaced equidistantly from each other around a capsule or housing which contains a payload. The legs are inflated at a designated altitude after entering earth's atmosphere to slow the descent of the re-entry vehicle. Connected between each of the four legs are drag inducing surfaces that deploy as the legs inflate. The drag inducing surfaces are triangularly shaped with one such surface being connected between each pair of legs for a total of six drag inducing surfaces. The legs have drag inducing outer surfaces which act to slow the descent of the re-entry vehicle.
Document ID
19940016117
Acquisition Source
Legacy CDMS
Document Type
Other - Patent
Authors
Roberts, Michael L.
(NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Date Acquired
August 16, 2013
Publication Date
November 30, 1993
Subject Category
Spacecraft Design, Testing And Performance
Report/Patent Number
Patent Number: US-PATENT-5,265,829
Patent Application Number: US-PATENT-APPL-SN-012839
Patent Number: NASA-CASE-MSC-22082-1
Accession Number
94N20590
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
US-PATENT-5,265,829|NASA-CASE-MSC-22082-1
Patent Application
US-PATENT-APPL-SN-012839
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