Anthony, while you post good questions, and I don't have the answer to it, what I can tell you is that no matter what you want in the DF world, it's been done on the equipment that is available to you from a Harrier, to an F-15, F-18 and other scale models to other models that are fully capable of 200 MPH and way beyond.

So even if you could repitch anything, which I don't think you can, all I can tell you is that it's not necessary. Reinventing anything in the DF world (unless that's how you get your willies) is not necessary. Especially if all you intend to do in DF is use it as a stepping stone to turbines.

Regardless, welcome to the Jet Forum and good luck with any project you take on. Take pics, share them, and ask lots of questions. Myself and others here have a world of experiance in DF and many who frequent here fly DF routinely.

Good Luck,

Sean