The Army and Air Force once conducted an air-to-air combat experiment between jet fighters and attack helicopters. Called J-CATCH, or Joint Countering Attack Helicopter, it was not the first of its kind but the most conclusive using modern technology.
The results showed attack helicopters proved remarkably deadly when properly employed against fighter aircraft. And it wasn't even close.
Even the mighty BRRRRRT has its limits.
The fourth phase of the exercise saw the final outcome of the test: fighters should avoid helicopters at all costs, unless they have superiority of distance or altitude.