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Apollo experience report: Spacecraft structural windowsThe window structural design and verification experience is presented for the Apollo command and lunar modules. This report presents window design philosophy, design criteria, hardware description, and qualification and acceptance test programs and discusses the problems encountered and solutions developed in these areas. The structural characteristics of glass are not generally well understood by designers. The optics and instrument glass covers were not considered to be structural components and thus were not normally subjected to the design, qualification, and acceptance standards necessary to preclude failures. These two factors contributed significantly to window problems on both Apollo spacecraft.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Technical Note (TN)
Pigg, O. E.
(NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Weiss, S. P.
(NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Date Acquired
September 2, 2013
Publication Date
September 1, 1973
Subject Category
Space Vehicles
Report/Patent Number
Accession Number
Funding Number(s)
PROJECT: RTOP 914-13-20-13-72
Distribution Limits
Work of the US Gov. Public Use Permitted.
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