Some more work will be required to get the U.S. Air Force's new hypersonic weapon up to speed.

That system, known as the AGM-183A Air-launched Rapid Response Weapon (ARRW), is designed to launch in midair from beneath the wing of a carrier plane. 

The missile was supposed to do that for the first time on Sunday (April 5), during a powered test flight off the coast of Southern California. But the prototype ARRW booster failed to deploy as planned from its B-52H Stratofortress, and the plane returned to Edwards Air Force Base with the missile still attached.

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