Tag Archives: AR-22

DARPA Finishes Two-Week Evaluation of AR-22 Engine; Scott Wierzbanowski Comments

The Defense Advanced Research Projects Agency has concluded its two-week evaluation of an RS-25 Space Shuttle Main Engine variant as part of the agency’s Experimental Spaceplane program with Boeing. DARPA said Tuesday it coordinated with Aerojet Rocketdyne in fire testing the AR-22 engine using an aircraft-like approach. Experimental Spaceplane Program …

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Aerojet Rocketdyne to Build Main Propulsion System for DARPA-Boeing Spaceplane Project

Aerojet Rocketdyne has been selected to build the main propulsion system for a reusable hypersonic aircraft being developed by the Defense Advance Research Projects Agency and Boeing. Aerojet Rocketdyne said Wednesday that it will produce two AR-22 engines using parts from previous versions of the space shuttle main engine that has remained in the company …

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