The Air Force has had to postpone the planned May 25 maiden free flight of the X-51A hypersonic air vehicle because a freighter was transiting a portion of the Point Mugu Naval Air Warfare Center Sea Range several hundred miles off the California coast. A Navy P-3 aircraft spotted the ship as it was scanning the potential splashdown zone. The May 25 release from Edwards AFB, Calif., from which a B-52 would initially carry the X-51 aloft, said, “Weather permitting, the X-51A will make its first hypersonic flight attempt Wednesday May 26.”
If the Air Force is in line for a big budget bump from President Donald Trump’s proposed $1.5 trillion defense budget in 2027, the head of Air Combat Command said he would make aircraft spare parts his top spending priority—but cautioned that more money to buy parts won’t equal a…


