this post was submitted on 17 May 2025
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[CSI Starbase] POGO: The 63-Year-Old Problem Threatening Starship's Success (96 minutes) (www.youtube.com)
submitted 1 day ago by threelonmusketeers to c/spacex
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[–] threelonmusketeers 8 points 1 day ago* (last edited 1 day ago) (1 children)

Lengthy video, but worth the watch, as Zack Golden's analyses usually are.

[–] [email protected] 4 points 1 day ago (1 children)

Wish there was a tl;dr

[–] [email protected] 10 points 1 day ago (1 children)

Resonance. Old problem, new rocket.

[–] threelonmusketeers 7 points 1 day ago

"Resonance"is probably the best one-word explanation, but the interesting details are in how the version 2 downcomer design makes the ship more prone to pogo oscillations, what the most likely failure modes are, and how they could be addressed in the short term and long term.