AR1 sets U.S. record

STENNIS SPACE CENTER, Miss. -- Aerojet Rocketdyne recently demonstrated the highest chamber pressure of any United States produced liquid oxygen and kerosene main combustion system. This milestone occurred during a series of successful test firings of the AR1's staged combustion system at NASA's Stennis Space Center. Preparations for the staged-combustion testing began at Stennis last summer, pushing the limits of the nation's premier large engine development test facility. During this testing, Aerojet Rocketdyne combined the engine's preburner with the main injector in order to validate injector design parameters and performance. The AR1 engine is being developed as a replacement for Russian-made engines currently used on domestic rockets. AR1 is a 500,000 lbf thrust-class liquid oxygen/kerosene booster engine that incorporates the latest advances in rocket engine technology, materials science and modern manufacturing techniques to deliver an affordable, reliable booster engine quickly. (Source: Aerojet Rocketdyne, 02/22/17) Previous