The upcoming OA-X fly-off features the Textron Scorpion as one of the major contenders. This plane has been the subject of some hype since it first flew in 2013. However, if it wins the OA-X flyoff, it won't be the first Scorpion to have flown for the United States.
In the 1950s and 1960s, the United States was looking to acquire interceptors to stop a horde of Soviet bombers. The big problem — the guns were just not packing enough punch. One answer to this was the F-89 Scorpion from Northrop.
Three Northrop F-89 Scorpions. (U.S. Air Force photo)
The first definitive version of the Scorpion to achieve widespread service, the F-89D, addressed that problem by using air-to-air "Mighty Mouse" rockets. The Scorpions carried 104 of them, and had the option of firing all of them at once, or in up to three salvos. The F-89 Scorpion also had a lethal ground-attack capability, being able to carry 16 five-inch rockets and up to 3,200 pounds of bombs.
But the "Mighty Mouse" rockets proved to be more mouse than mighty, and the Scorpion's armament was soon the subject of an upgrade. The F-89J was a F-89D modified to carry the AIR-2 Genie rocket — which carried a small nuclear warhead. The plane could also carry four AIM-4 Falcon missiles. The Genie had a warhead equivalent to 250 tons of TNT, and it had a range of six miles and a top speed of Mach 3. Early versions of the AIM-4 had a range of six miles, but later versions could go 7 miles. Most Falcons were heat-seekers, but some were radar-guided missiles.
A F-89 Scorpion firing an AIR-2 Genie rocket. (U.S. Air Force photo)
The F-89 was eventually retired in favor of faster interceptors with more modern radars and missiles, but for most of two decades, it helped guard America's airspace from Soviet aggression. Below is a video put out by the Air Force's Air Defense Command about this plane.