If you fly A-10 it is best to avoid Helis. You don't have a radar so it's difficult to spot them, and if you do, be sure that the Heli already knows where you are.
So, you turn to engage him and suddenly the distance between you and him is decreasing very fast, and you dont have the time to hear the sound you want... If you keep flying forward to him, you will propably been hit with gun fire. So Zoom and make some circles above him. If he is on hover, it will be difficult for him to gain altitude and if he tries, you will get more. If he is not hovering, he will try to get your six or get you in his cannon sights. Gain altitude, so he can't follow you. After some circles above him, in the right time do a Boom, fire some bursts on the rotors, and pull back the stick to avoid collision with the Heli. If you do it right, you will see many Heli pieces... :lol: