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Challenger Case Material
Essay specific features
Written by:
Dawn C
Date added:
September 23, 2015
Level:
University
Grade:
A
No of pages / words:
8 / 1988
Was viewed:
6802 times
Rating of current essay:
Essay content:
Although the Titan's O-rings had occasionally been eroded by hot gases, the erosion was not regarded as significant. A second, redundant O-ring was added to each joint to act as back-up should the primary O-ring failed.
As early as 1977, a test of the SRB case showed an unexpected rotation of the joints which decompressed the O-rings making it more difficult for them to seal the joints...
displayed 300 characters
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In 1980, a review committee concluded that safety was not jeopardized and the joints were classified as Criticality 1R, denoting that joint failure could cause loss of life or shuttle (the 1 in the rating); and that secondary O-rings provided redundancy (the R in the rating). During 1983, the SRBs were modified to use thinner walls, narrower nozzles, and more powerful fuel, which worsened the joint rotation...
displayed 300 characters
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