At around T-3:00 on every Falcon 9 countdown, we hear the following:

Stage 1 pogo bleed verification

I assume they are referring to pogo oscillation, but what exactly does "pogo bleed" mean and what does it entail?

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    $\begingroup$ Most boosters have a pogo prevention system consisting of accumulators in the LOX system to dampen out oscillations. No knowledge of Falcon details though. $\endgroup$ Jan 15, 2023 at 22:34


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