Encyclopedia Astronautica
RL-10


Pratt and Whitney lox/lh2 rocket engine family. First flight 1961. Originally planned for use in Centaur upper stage for Atlas, but earliest successful flights in Saturn IV stage for Saturn I. Throttleable version designed for direct-landing Apollo mission, but cancelled. Sea-level version used in DC-X SSTO test vehicle. Numerous developed versions used in Atlas, Atlas V, Delta IV upper stages. Only production American upper-stage lox/lh2 engine.

More... - Chronology...

Home - Browse - Contact
© / Conditions for Use