General Atomics Unit Tests New Unmanned Aircraft System Fuel Engine
General Atomics‘ aeronautical systems division has finished the durability testing of its new 200-horsepower heavy fuel engine for the Gray Eagle unmanned aircraft system. The HFE 2.0 engine underwent tests simulating a 2,500-hour lifespan, including 1,250 full power take-offs and climbs to high altitudes and over 200 hours of cruise under extreme conditions. The U.S. Army […] More