EDWARDS AIR FORCE BASE, California—With deliveries of new F-35s on hold while bugs are worked out of a planned upgrade, the plane’s lead test squadron is doing its part to spot problems where the new ...

Two F-15EX Eagle II fighters return from a test mission over the Gulf of Mexico on Aug. 2, 2023. (Tech. Sgt. John McRell/U.S. Air Force) WASHINGTON — The U.S. Air Force announced Wednesday the F-15EX ...

House lawmakers have approved an amendment to the proposed fiscal 2025 National Defense Authorization Act that would increase the number of F-35 Joint Strike Fighters dedicated as developmental test ...

The U.S. Navy used one of Boeing’s F-15SA instrumented aircraft to conduct the final test flight of the AGM-84 Harpoon Block II Update at the Point Mugu Sea Range. The U.S. Navy’s Naval Air Systems ...

The Lightning II that crashed on Tuesday was one of very few F-35 developmental test aircraft, exacerbating a shortage that has in the past led to program delays. The aircraft, which was en route from ...

The latest Director, Operational Test & Evaluation report says no combat-capable F-35 TR-3 aircraft have been delivered to the U.S. military until September 2025 because of the truncated software. The ...