出典:Wikipedia
出典:『Wikipedia』 (2011/04/13 18:14 UTC 版)
The RL10 was USA's first liquid hydrogen fueled rocket engine. An updated version is used in several current launch vehicles. Six RL10 engines were used in the S-IV second stage of the Saturn I rocket. One or two RL10 engines are used in the Centaur upper stages of Atlas and Titan rockets. One RL10 is used in the upper stage of Delta IV rockets.