Im just daydreaming here so bear with me.
Imagine if when in the hangar you could upgrade planes with perk point you have. If it goes down you lost alot of perkies.
Lets say you could add things like high speed flaps, cannons,engines, (no jets) bubble canopy, gunsights, pilot armor.
What kind of monster would you create?
Mine would be a P40E airframe
Add-ons would be:
2 - cannon
Spit Engine
F6F gunsight