Thursday, August 07, 2008


A high-res video of the failed 3rd launch attempt of SpaceX's Falcon 1. Watch the very end, where the stage separation goes bump. Essentially, the switch between an ablatively cooled engine in the first 2 attempts and the regeneratively cooled main booster engine in the third attempt caused the problem. Because there's residual thrust in a regen-engine -even after engine cutoff- the stages bumped after separation, causing loss of the rocket.

Rocket science is hard.

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