AR1
RL10 engine added to Air Force agreement with Aerojet Rocketdyne
Aerojet Rocketdyne and the U.S. Air Force have revised an existing agreement supporting development of a new large rocket engine to include work on an updated version of an upper stage engine.
Air Force and Aerojet Rocketdyne renegotiating AR1 agreement
The U.S. Air Force and Aerojet Rocketdyne are working to revise an agreement to support development of the company's AR1 rocket engine, as questions continue about the engine's long-term future.
What is Mondaloy and why should you care?
Aerojet Rocketdyne’s success in developing AR1, an engine designed to replace Russian-made RD-180 engines on United Launch Alliance rockets, hinges in part on its use of Mondaloy, a nickel-based superalloy invented in the 1990s by metallurgists Monica Jacinto.
ASRC 3D prints fuel injector prototype for RD-180 successor
ASRC of Beltsville, Md., has test fired a subscale propellant injector built via additive manufacturing, or 3D printing, paving the way for a version that will be able to support whichever engine United Launch Alliance chooses to replace the Russian-built RD-180 on the Atlas 5 rocket.
AR1 rocket R&D costs reach $228 million
Research and development (R&D) costs for the AR1 rocket from the program’s inception through June 30 have reached about $228 million, according to recent Security Exchange Commission (SEC) filings by Aerojet Rocketdyne, the engine's manufacturer.
Blue Origin retains engine lead as House considers limitations on launch system funding
An independent assessment of rocket engine development delivered to a House committee last week has concluded that Blue Origin remains well ahead of Aerojet Rocketdyne despite a recent testing setback.
Loser of ULA’s Vulcan engine downselect will likely lose Air Force funding
Air Force leaders didn't definitively say if they'll cut off funding, but said they're more interested in launch services than engines.
Aerojet Rocketdyne says development of AR1 engine remains on schedule after successful tests
The company completed a series of hot-fire tests on the preburner design for the AR1, keeping the program on schedule to be flight-ready by 2019.
Aerojet to move rocket engine work out of historic facility
Aerojet Rocketdyne announced a second phase of the company’s consolidation plan April 10 that includes moving development of rocket engines from a decades-old California facility.
Bruno: Vulcan engine downselect is Blue’s to lose
United Launch Alliance is prepared to select Blue Origin’s BE-4 engine for its Vulcan launch vehicle this year if the engine passes an upcoming series of tests, the company’s chief executive said April 5.
Aerojet Rocketdyne pitches AR1 as the only direct replacement for RD-180
Aerojet Rocketdyne’s Julie Van Kleeck pitched the AR1 rocket engine to a roomful of reporters Tuesday morning as the only direct replacement for the reliable but politically polarizing Russian engine that powers the Atlas 5 rocket.
Aerojet Rocketdyne Finishes Design Review on Proposed RD-180 Replacement
Aerojet Rocketdyne said Dec. 17 that the AR1 engine it hopes to build for United Launch Alliance’s next-generation rocket has completed a key design review.
Aerojet Rocketdyne Ties AR1 Schedule to Pentagon Funding
Development of Aerojet Rocketdyne’s new engine could be delayed without sufficient government funding, company executives said here Sept. 15.
