Engine
Thrust, and a little top speed.
Upgrades · 35 coins in all
Stock
I
Kawasaki Ha-9-IIb
+4% thrust
5 coins
II
Close-fitting engine cowling
+8% thrust
10 coins
III
Variable-pitch propeller
+12% thrust
20 coins
Armament
Damage dealt, by guns, rockets and missiles alike.
Upgrades · 35 coins in all
Stock
I
Armor-piercing belts
+4% damage
5 coins
II
Incendiary belts
+8% damage
10 coins
III
Ho-103 12.7 mm machine guns
+12% damage
20 coins
Airframe
Damage taken: the same hit takes less of a sturdier airframe.
Upgrades · 35 coins in all
Stock
I
Self-sealing fuel tanks
+4% toughness
5 coins
II
Pilot armor plate
+8% toughness
10 coins
III
Bulletproof windscreen
+12% toughness
20 coins
Controls
How fast it pitches, yaws and rolls.
Upgrades · 35 coins in all
Stock
I
Metal-skinned ailerons
+3% agility
5 coins
II
Spring-tab ailerons
+6% agility
10 coins
III
Clipped wingtips
+9% agility
20 coins