Rocketdyne supplied 33 engines for each Saturn V rocket, providing engines for every stage except the lunar module's descent engine.
Sources
- We Built the Saturn V (smithsonianmag.com)
- https://www.nasa.gov/history/afj/ap15fj/pdf/a15-sat-v-press-kit.pdf (nasa.gov)
- https://www.orbiterwiki.org/wiki/Rocketdyne (orbiterwiki.org)
- https://www.airandspace.si.edu/collection-objects/rocket-engine-liquid-fuel-f-1/nasm_A19750649000 (airandspace.si.edu)
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