Northrop YB-49
…service with the United States Air Force. The YB-49 featured a flying wing design and was a turbojet-powered development of the earlier, piston-engined Northrop XB-35 and YB-35. The two YB-49s built were both converted YB-35 test aircraft. The YB-49 never entered production, being passed over in favor of the more conventional…