u/MistakeHuge5194

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Apollo 11 used 11 main engine burns:
1-3. Ascent: 3 Saturn V stages (S-IC, S-II, S-IVB) reached Earth orbit.
4. TLI: S-IVB sent craft toward Moon.
5. Correction: Mid-course SPS burn.
6-7. Lunar Orbit: Two SPS burns to circularize.
8-9. Descent: Two LM engine burns to land.
10. Ascent: LM engine liftoff from Moon.
11. TEI: SPS burn to head home