Thanks, guys. I'm pretty well sold on holding the model close to the original design - IM's Corsair MkII, circa 1969, kitted briefly by World Engines in 1970. Things like motor mounts will be tweaked, but I'll try and stay true to the planform.

I mentioned Ed Kazmirski's and Jim Kirkland's use of the "diamond" stab section - this is a low-res scan of what that looks like:


PJ

[btw - I loved your empirical approach to downwash, Cees!]