Rocketdyne J-2 engines of Saturn S-II second stage Published on May 13, 2016 in 14 May 1973, 17:30:00 UTC, T plus 000:00:00.22Full resolution (853 × 1280) ← Previous Next → Rocketdyne J-2 engines of Saturn S-II second stage. (© 2010, Blake R. Swopes)