Aerojet Rocketdyne Supports ULA Launch in Support of National Security
"The successful launch of a payload in support of our national security and that of allied forces demands the best propulsion systems available," said
Aerojet Rocketdyne's role in the launch began during liftoff when an RS-68A engine ignited to provide 702,000 pounds of lift-off thrust. The RS-68A is the world's most powerful liquid-hydrogen/liquid-oxygen booster engine.
After the upper stage separated from the launch vehicle, a single RL10B-2 engine ignited to provide 24,750 pounds of thrust to power the upper stage into orbit. The RL10B-2 was developed from the RL10 family of upper-stage engines, which has accumulated one of the most impressive track records of accomplishments in the history of space propulsion. More than 480 RL10 engines have supported launches over the last 50 years, playing a vital role in placing military, government and commercial satellites into orbit, and powering scientific space probes on every interplanetary mission in our solar system.
The 12 Aerojet Rocketdyne MR-106H monopropellant (hydrazine) thrusters packaged in four modules on the Delta IV upper stage provided roll, pitch and yaw control as well as settling burns for the upper stage. ARDÉ, a subsidiary for
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