Aerojet - Model RL10 Engine - Space Launch System (SLS) - Datasheet

For more than fifty years, Aerojet Rocketdyne’s RL10 has been the nation’s premier upper-stage rocket. engine. Evolved from a technological breakthrough in harnessing high-energy liquid hydrogen as a. propellant, the RL10 has amassed one of the most remarkable lists of accomplishments in the history. of space propulsion.. The RL10 has played a vital role in placing numerous military, government and commercial satellites into. Earth’s orbit, and has helped send spacecraft to explore every planet in our solar system, including. Voyager 1, the first spacecraft to reach interstellar space, and New Horizons, the fastest spacecraft to. ever leave Earth orbit.