At one point a four-engine version, the Saturn IV, had been considered, but in the complicated tradeoffs that led to the final design of NASA’s moon rocket, the “V” variant won out.

And although this particular Rocketdyne F-1 engine never left Earth, it helped make possible the Saturn V launch that would ... says Neufeld, “and design it for a population that didn’t ...

spacecraft design, and the collaborative efforts among various companies and agencies to achieve space exploration goals. Keywords manned space flight, Saturn vehicle, Apollo spacecraft ...