Some good pilots recommend use of flaps(combat flaps simulated as "1 notch flaps" in some planes) in short turns. Other times, when you are about to make a "final move" - a move where you'll probably lose very much energy but you are sure you'll absolutely kill him with that final maneuver - you might need some flaps to assist your plane.
Other times, you might have to use one, like on top of a zoom when you have to flip over without stalling/spinning, or when you finish a long vertical looped zoom maneuver which ends in like 90mph.. few seconds of flaps to hold together while the plane accelerates..
And.. there is that use of flaps as a last resort maneuver.. when the guy behind you is almost slow as you, but won't be shaked.. you put on flaps, pull gears out and scissor your way to try for an overshoot.. but it really is a last resort move - a desperate gamble.
And, flaps are nice to use in lift offs in some situations - like CV take off. And, nice to use as speed breaks for quick landings. But for the landing part, it's not really that necessary, since the gears in aircrafts of AH are quite tough and forgiving.
¾È³Ä¼¼¿± ^^