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| The Titan II Missile N-25 was launched with standpipes in the oxidizer lines and mechanical accumulators in the fuel lines to mitigate the Pogo effect. This approach was effective, reducing Pogo levels to within NASA's comfort zone, and every subsequent launch over the next five months yielded the same results. The cover above is postmarked at Cape Canaveral on November 1, 1963. |
1963-11-01 USA Titan II Pogo Effect Suppression Test
