All aircraft will have a base parameter that can be further improved by equipping various Body upgrade parts. Before you can slot an upgrade part, you’ll be able to see how much improvement the part can bring to the specific parameter. The light green portion of the parameter gauges represent the bonuses provided by the equipped parts.
Speed
Affects the maximum speed and acceleration. Higher points in this parameter also means that the aircraft can easily close the distance to its target and move across the airspace quicker.
Mobility
This affects the aircraft’s overall maneuverability. Higher points in this parameter means that the aircraft is very responsive to rolls and pitches, and can perform tight turns and maneuvers, perfect for dogfighting.
Stability
This parameter affects how the plane remains stable in different speed ranges. This is particularly important for attack aircraft since they need to be able to maintain a stable flight path while attacking ground targets. Stability also affects an aircraft’s stalling and recovery speeds. This is why attack aircraft can maintain a steady, slow speed without stalling easily.
Air-to-Air
This parameter determines the aircraft’s overall anti-air performance. This includes the ease of locking-on to airborne targets and how much damage it can deal to them. This is particularly important to fighters.
Air-to-Ground
This parameter determines the aircraft’s overall anti-surface performance which includes both ground and naval targets. Higher points in this parameter allows the aircraft to deal more damage to these targets especially with the use of appropriate SP weapons. This is important to attack aircraft.
Durability
Determines how much damage the plane can take before getting destroyed. Adding additional armor will improve this parameter though you have to take note of the difficulty you’re playing as well. (for example, in Easy Mode, a missile hit can cause 25% damage while in normal it can be around to 35%-45%)