Transcription: I'm standing at the booster officer's console. The booster systems engineer is responsible for all of the engines on all three stages of the Apollo Saturn V. From this console, he can monitor every element of the huge Saturn rocket. This includes the first stage, S1C, that has five huge F1 engines. The second stage, S2, has five J2 engines. And the third stage, S4B, has one J2. engine.
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