Air Force and industry engineers are testing an enhanced version of the Rolls Royce AE3007 turbofan engine that powers RQ-4 Global Hawk unmanned aerial vehicles at the Arnold Engineering Development Center on the grounds of Arnold AFB, Tenn. These activities are taking place in the center’s T-4 test cell. Gary Meuer, the contractor managing the testing, said this is the first altitude test of this engine variant, which features upgraded turbine hardware and an improved combustor. “They [the customer and sponsor] are after fuel economy, not more performance, but more efficiency and endurance,” said Meuer. Andrew Jackson, the lead contractor engineer for the testing, said T-4 simulates the altitude and Mach number of the Global Hawk in flight. RQ-4s have an operational ceiling around 65,000 ft. (AEDC release)
DARPA Changing Directors Again in Third Recent Shuffle
Jan. 21, 2021
The Biden administration is reportedly tapping Stefanie Tompkins to run the Defense Advanced Research Projects Agency, spurring the third leadership change at the secretive Pentagon organization since January 2020. Defense One first reported Tompkins’s "pre-decisional" appointment to the post on Jan. 19. The White House did not respond to a…