Saturn V-A was a proposed American orbital launch vehicle.
It was studied by Marshall Space Flight Center in 1968. the Saturn V-A was identical to the Saturn INT-20, except it consisted of an ordinary S-IC first stage and S-IVB second stage.
[1]: 1102 For deep-space missions, a Centaur third stage could also have been used.
Details [2] of Saturn V-A: Gross mass: 2,478,120 kg (5,463,310 lb).
Payload: 60,000 kg (132,000 lb).