On January 10, 1962, NASA announced plans to build the C-5. The three-stage rocket would consist of five F-1 engines for the first stage, five J-2 engines for the second stage, and a single, additional J-2 engine for the third stage. The C-5 was designed for the higher payload capacity necessary for a lunar mission, and could carry up to 41,000 kg to the Moon The C-5 was confirmed as NASA's choice for the Apollo Program in early 1963, and was given a new name - the Saturn V. Read more