
Aerojet Rocketdyne [AJRD] has successfully tested its AR-22 booster rocket engine’s ability to re-fire 10 times within 10 days, a critical milestone needed for its use on Boeing’s [BA] Phantom Express reusable military space plane launch system, company officials said on Tuesday.The AR-22 was tested June 26-July 10 during which engineers were able to get the turn-around time for the engine down from 17 hours to 6 hours, as officials ready the system for use on Phantom Express demonstration flights…