Northrop F-89J Scorpion 52-2547 fires a live MB-1 rocket during Operation Plumbbob John, 19 July 1957 at NTS Area 10 2 Published on July 14, 2013 in 19 July 1957, 14:00:04.6 UTCFull resolution (1297 × 730) ← Previous Next → The MB-1 Genie missile accelerates away from the Northrop F-89J Scorpion. (U.S. Air Force)