what order to get plane upgrades in?

[Thirsty]

like title says, what order would i be getting the uprades in?

[Rumpelcrutchskin]

I usually get ammo and machinegun/cannon upgrades first, then engine upgrades and then aerodynamic improvements. Bombs and rockets last if there is any.
Default ammo is usually horrible and guns spray around and jam without new gun mods. Engine upgrades give you biggest boost to speed, climb and turn rates.

[Der Lachende Mann]

Ammo, especially if default ammo is not so good, bomb upgrades until you get a decent loadout for bombers, weapon accuracy, then performance; then airframe and cover. Bombs for fighters as last.

If there is more than one plane to upgrade or if the stock plane doesn't perform too well, AB. But then I always prefer AB to unlock end upgrade vehicles.

I got almost everything and there are only 3 planes I found unfit to spade in AB, the 2 regular Do-335 and the Ta-152C.

[Gambit]

I usually go with ammo first then the airframe, other than that it's really just your preference

[Thirsty]

Originally posted by Hail, Fellow Traveller!:

Engine parts and primary weapon belts are your primary objectives with plane upgrades. If it's a USAF plane, do all engine parts ASAP.

looks like pretty solid advice :D

after those two, is survivability the next best option?

[nova1974chevy]

I go ammo last with the zero line as I need the engine to last and the plane not to lite up as much as posible. I think each plane line will be a little different into what you need the most, what your lacking, and you should be able to figure it out while you fly. Normaly I guess you would do ammo and engine first.