Tag Archives: RS-25 Space Shuttle Main Engine

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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