The McDonnell XF-85 Goblin was a fighter intercept craft designed for mid-air deployment from long-range bombers, the idea being that it could be deployed out of a bomber during a flight to protect it during transit to target then recovered. This idea proved slightly less effective than anticipated as the physical limitations of creating a fighter that's small enough to fit in a B-36 but still fast enough to intercept supersonic aircraft and down them meant the Goblin was both underpowered and outgunned or would have been had it ever gotten out of experimental testing. Only Two IRL examples survive today.