Tactics

Going Head To Head (H2H)
Head to Head is when your enemy comes straight at you. You may have seen expert players barrel-rolling while doing this. While definitely flashy and intimidating, this is however not the best thing to do. Go straight against your opponent, keeping the reticule on them, ensuring that it is red. That ensures that the maximum amount of bullets hit your opponent.

With Rockets
If you are a determined rocket player, the best tactic is to lob a rocket at them, keeping in mind where they hit, and then quickly diving or climbing away, wait for your rocket to reload, and then give them another one. Even in the weakest planes, rockets are definitely 2-shot-kill.

The Barrel Roll(Corkscrewing)
Even though I previously stated that you shouldn't do this in H2H, this is still an effective tactic otherwise. Flying around while doing so minimizes your chances of getting hit, although some people may find it disorienting.

Bailing out
Your plane is bullet riddled, with thick smoke pouring from the whining engine, you have lost rudder control, and there is a little round icon with a parachute on it, saying "Bail Out". Shake your iDevice now, to eject. Be warned though, you obviously lose all control after you eject, so do not do so with your nose pointing straight towards the ground. The best thing to do now is the Chonch Maneuver. Named after a multiplayer ace, this move consists of speeding away towards the edge of the map in full throttle, until you are out of MG range, then bailing out. This minimizes the chances of you getting killed after ejecting, as your plane is still a target for 3 seconds after you bail, and as you cannot control it, you are a sitting duck.

"Drunk Flying"
As the name suggests, this involves flying wildly, changing direction at the least-expected moments and looping in a crazy fashion. This will usually shake your opponent off but be careful not to crash while doing this!