Need to be pointed in right direction for Speed Decrease on pitch and roll Rotations.

So I am getting ready to set my dragon up to lose speed when it starts flying up after x degrees and loose speed a lot when inverted, while gaining speed when the nose is down. I was wondering if any of you could point me in the right direction. Can I attach it to character local or world rotation etc? Anyone know where I can start looking, so that I can delve into it over my week of vacation would be much appreciated.

You’re essentially trying to create a basic flight-model, have a look at this:

You may also want to check out some ready-made solutions:

Awesome! Thanks. That is what I am trying to do.