For the first time, the US Air Force conducted the hot-pit refueling operation using an R-20 expeditionary refueling system. The test supported a U.S. Army UH-60 Black Hawk helicopter on a flightline ...
LA SELVA BEACH, CA, UNITED STATES, February 10, 2026 /EINPresswire.com/ — Parallel Flight Technologies, Inc., a developer of next-generation unmanned aircraft ...