PS3 Aviator Buttons? X and Triangle = ?

[PF_Lizard]

When I select Wireless Controller (Aviator) I get no image so have no idea what buttons do what. So here is what I have found out so far, and if anyone could fill in the blanks, it would be appreciated.

L stick = Elevator / ailerons
R stick = Look
L1 / R1 = Rudder
L2 / R2 = Throttle (55% idle)
L3 = Flaps
R3 = View (sort of fighter jet style HUD)
Circle = Guns
Square = Rockets
Triangle = ?
X = Trim
Select = Landing Gear
Start = map (Pause by pressing select when in map)


Also can anyone confirm that L2 is a brake on the ground? I have my doubts as they are pretty crap brakes if that's the case! lol