J-CATCH
J-CATCH, short for Joint Countering Attack Helicopter, was a joint US Army-US Air Force experiment in dissimilar air combat between jet fighters and attack helicopters, conducted in 1978/79. To the surprise of many involved in the program, the helicopters proved extremely dangerous to the fighters when they were properly employed, racking up a 5-to-1 kill ratio over the fighters when fighting at close ranges with guns.