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)
Loved Ones Mourn 6 Airmen Killed in KC-135 Crash
March 16, 2026
Tributes to the six crew members that died in the KC-135 Stratotanker crash in Iraq have flooded social media since the Pentagon released their identities March 14. They were the first Airmen to die while supporting Operation Epic Fury against Iran.