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Video of Falcon 9 First Stage Landing on Barge


Wow. That’s far worse than I thought. Someone did not correctly calculate effective gains.


It clearly did not have the right setpoints for null v and location. Seems like a plain PID loop is in order, and they are fiddling with Smith predictors. Looked like a tired athlete just getting it wrong, like a baseball player who’s going to catch the ball, but hits the fence first.



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