STENNIS SPACE CENTER, Miss.,
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"This important milestone keeps AR1 squarely on track for flight readiness in 2019," said
The preburner, a critical component that drives the engine's turbomachinery, was built using state-of-the-art techniques, including 3-D printing which features Aerojet Rocketdyne's proprietary Mondaloy™ high-strength, burn resistant nickel-based super alloy. With the design now confirmed, Aerojet Rocket has cleared one of the major technological hurdles to fulfill the congressional mandate to end
"Due to the hot, oxygen-rich environment inside a staged combustion engine like the AR1, burn resistant materials are necessary to ensure safe operation of the engine under all conditions," said
The AR1 engine development is using the same rigorous methodology the company has used for its previous successful engine development programs, such as the RS-68, J-2X, RL10, and RS-25. Prior to full engine testing, the company is testing critical components and systems to validate the flight designs, ensuring that they are each robust prior to completing the flight engine design. Hundreds of component and subsystem tests along with manufacturing demonstrations have already occurred on the AR1 engine in advance of full engine testing. This approach minimizes changes once engine-level testing begins. The engine design team has now successfully completed a series of 22 component Critical Design Reviews leading up to an engine system Critical Design Review to support engine qualification and certification in 2019.
Glenn Mahone, Aerojet Rocketdyne, 202-302-9941 Glenn.Mahone@Rocket.com Mary Engola, Aerojet Rocketdyne, 571-289-1371 Mary.Engola@Rocket.com
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