[Whizz]

Is it possible for a beginner to start modding new aircraft effectively. I confess I have no idea how to do this but I wouldn't mind having a crack at something, maybe an I-15bis. Where would I start? Is there a tutorial? I downloaded the tools from the modtools page but there are no instructions on how to start using them.
Like everyone else I've got a big long list of types that I'd love to see in the game.