That is just the subject I have been kicking around for several months now. I stumbled accross some articles about the Byro Blaster Enforcer which included Mike Weidner's and Joe Lupton's home pages which had information on the subject. I found those pages linked on the USRCJC website under "Articles and How to's" I just love the way Joe extended the nose of the Enforcer and moved the verticals outboard one rib bay. I have already purchased the Enforcer kit, OS 91, Byron fan, and Spring air Retracts. I might even add a speed brake (ala hot spot) or some Rafale type canards. My friend, Woketman(did I just admit that) suggested that I install rudders any way I could as his had some problems transitioning from the air, to the ground, and back again without rudders. (which I can understand). Articles claim 180mph on a budget minded ducted fan setup with an exposed motor/fan setup like the turbine delta trainers out there. I'm finishing up a Morris Hobbies Tomhawk right now with retracts and then plan on jumping right on this project! The attached photo is from Joe Lupton's homepage. Look it over and see what you think. The link to the USRCJC site is:
http://www.usrcjc.org/howto.htm
Just a suggestion
Mike Morgan