NASA Conducts Second RS-25 Engine Test of Year at Stennis Space Center

NASA conducted its second RS-25 engine hot fire test of the new year Feb. 8 on the Fred Haise Test Stand at Stennis Space Center. The test was the third hot fire in the latest test series that began in mid-December. NASA is testing RS-25 engines to help power the agency's Space Launch System (SLS) rocket on future deep-space missions. Each test in the current series is providing valuable operational data to NASA's lead contractor, Aerojet Rocketdyne, on a variety of new components manufactured with state-of-the-art fabrication techniques as the company begins production of new RS-25 engines. Over half of this test was conducted at 110 percent and 111 percent of power levels used for space shuttle main engines.