Lockheed Martin rendering of the AGM-183 ARRW. The first flight test of the AGM-183A ARRW failed on Monday, April 5, 2021, over the Point Mugu Sea Range. The U.S. Air Force’s long-awaited first flight test of its hypersonic AGM-183A ARRW (Air-launched Rapid Response Weapon), a boost-glide hypersonic system being developed by Lockheed Martin, failed when “the first booster vehicle flight test encountered an issue on the aircraft and did not launch” on Apr. 5, 2021. According to a release, a B-52H Stratofortress bomber took off and headed over the Point Mugu Sea Range intending to fire the first booster test vehicle for the AGM-183A, but the test missile was unable to complete the launch sequence and was not released by the “mothership” that returned to Edwards AFB, where it safely landed.