Glenn Research Center Site Index
RL-10 Engine Gallery


The sign accompanying the RL-10. It reads

Pratt & Whitney RL-10 Rocket Engine

Develops 15,000 lbs. of thrust.

Two RL-10 engines power the Centaur upper stage vehicle. Centaur was the first operational rocket to use high energy cryogenic propellant:

  • Liquid oxygen: -297°F (-183°C)
  • Liquid hydrogen: -423°F (-253°C)

Glenn pioneered in the research of these propellants in the 1950s.

Liquid hydrogen and liquid oxygen are used on the Space Shuttle, Atlas-Centaur, and Titan-Centaur.

Time picture taken Mon Jul 21 09:46:15 2003
Location picture taken Exhibit Galleries
Glenn Research Center
Cleveland, Ohio
Prev RL-10 Engine Gallery Next