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Old October 31st 08, 02:37 PM posted to sci.space.policy,sci.space.history
Pat Flannery
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Default HST repair delayed; Ares 1-X launch slips



Jeff Findley wrote:


Saturn V did have its teething problems. In particular, the POGO problem
was rather severe.

However, I always like to note that POGO problems in a liquid fueled engine
stage can be solved, and were solved on Saturn V.


Sort of solved... they never did completely figure out the root cause of
it in the first stage, and the second stage severely manifested it at
least once - during the Apollo 13 mission in which it caused the center
J-2 to shut down just prior to it getting to the point where it could
have caused vehicle failure.
There's a discussion of it in relation to various boosters he
http://www.pwrengineering.com/articles/pogo.htm

Pat