On liftoff, if I remember correctly. I think it had to do with an RCS jet, one of the reaction control system Jets. On my third flight, … Solid rocket boosters... are supposed to flame out 2 minutes and 5 seconds into the liftoff. … One got to chamber pressure of zero before the other one. And the space shuttle started rolling and yawing. Yeah. Not even thrust. Started rolling and yawing. (21:44–22:08)
CLAIM
Asserts the designed burn time for solid rocket boosters.
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