Northrop Grumman Corporation unveiled a bigger Firebird aircraft, some 30 percent larger than the Firebird demonstrator it unveiled in 2011, when it began test flights on the medium-altitude optionally piloted vehicle (OPV) demonstrator for an unidentified customer. Flown by two Northrop test pilots, the OPV made its first flight from Mojave, CA, on 12 November. Powered by a single Lycoming TEO-540E piston engine, the twin-boom configured aircraft climbed to 3,880 ft. and reached a maximum speed of 100 kt. during a short, 6-minute flight. (Image Credit: Northrop Grumman)
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