@Skepic, I agree but I don't think the number of types of plane is a balance point given making more types results in weakness rather than strength. Numbers and tooling and trained engineers and all that.
Verendes as it is would be able to put up a fight, but it would not realistically win a war against any of its neighbors. I could have a thousand types of planes and that would still be the case given they would be swarmed to extinction. This is an RP, not a game and I see no reason to even the ground. I am content with coming out on the bottom.
So why have them? Because they represent a narrative, starting with the TY-12 and culminating in the 'new secret weapon' TY-83. There is a sort of timeline there and all that.
As for description, I prefer doing that IC rather than giving people a huge stat sheet.