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Notes and Reflections on Books and Media

by Hannah Leitheiser

The O-rings

#shuttle #nasa #orings

Truth, Lies, and O-Rings: Inside the Space Shuttle Challenger Disaster

Allan J McDonald & James R. Hansen




Some context (that the book didn't provide): The Solid Rocket Motors -- the two boosters you see at the sides of the Shuttle -- were broken into 4 sections to make filling them with their cement-like fuel more manageable. Since you obviously can't weld something filled with fuel, they were bolted together and large heat-resistant rings sealed against escaping fire. These are the infamous o-rings.

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