Aerojet Rocketdyne
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| Division | |
| Industry | Aerospace |
| Predecessor |
Aerojet Pratt & Whitney Rocketdyne |
| Founded | 2013 |
| Headquarters | Sacramento, California, United States |
| Products | Rocket motor and missile propulsion |
| Parent | Aerojet Rocketdyne Holdings |
| Website | www |
Aerojet Rocketdyne is an American rocket and missile propulsion manufacturer. Headquartered in Sacramento, California, the company is owned by Aerojet Rocketdyne Holdings. Aerojet Rocketdyne was formed in 2013 when Aerojet (then owned by GenCorp) and Pratt & Whitney Rocketdyne were merged, following the latter's acquisition by GenCorp from Pratt & Whitney. On April 27, 2015, the name of the holding company, GenCorp, was changed from GenCorp, Inc. to Aerojet Rocketdyne Holdings, Inc.
The AR1 is a 2,200-kilonewton-class (500,000 lbf) thrust RP-1/LOX advanced oxidizer-rich staged combustion cycle engine project. Aerojet Rocketdyne proposed in 2014 to "lobby the government to fund an all-new, U.S.-sourced rocket propulsion system." In June 2014, Aerojet's initially projected it would cost under US$25 million per pair of engines, not including the up to US$1 billion estimated development cost to be funded by the government. Later in 2014, the US Congress passed a law requiring the US Air Force to "develop a new propulsion system by 2019 to replace the RD-180 engine" that powers Atlas V used by United Launch Alliance (ULA).Dynetics is key partner in development of the AR1 engine. Under a joint venture agreement, Dynetics is to supply elements of the engine's main propulsion system, the ignition system, and ground support equipment, along with analysis support to critical engine designs.
ULA announced in early February 2015 that they are considering undertaking domestic production of the Russian RD-180 engine at its Decatur, Alabama rocket manufacturing facility. The US-manufactured engines would be used only for government civil (NASA) or commercial launches, and would not be used for US military launches. ULA CEO Tory Bruno also indicated that ULA is considering the AR1 option, along with the US manufacture of the RD-180 by ULA under license as backup options to the primary option ULA is pursuing for the Atlas V successor with the Blue Origin BE-4 metha/LOX engine.
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