Re-engineering requirements would be HUGE.  Burt did it (Defiant).  Nobody else comes to mind (that could do it - right).  Why reinvent the defiant.  Just find some plans.  There have to be a few around.  It is NOT a fast airplane like Cozy, RV.  Compared to EZ, Cozy it's as much a tandem wing as a canard.  Takes at least twice as long to build as EZ/Cozy.
Not a terrific idea .... Jim S.

Russell Duffy wrote:

 Greetings,While I should be worrying more about finishing the Rev 2 FWF project on my RV-3, I can't help but think about what I'll do next.  I've always thought the ideal plane would be a twin engine, in a centerline thrust arrangement.  The only homebuilt that I can think of that fits this description is the Rutan Defiant.   For you guys that have backwards planes, how hard would it be to modify a Vari-EZ, or Long-EZ into a push pull configuration, using two single rotor engines?  Would this be relatively EZ (sorry), or a major effort?  I would be willing to set it up as a single place, flown from the rear seat if that will help with the CG.  Since I'm fiberglass challenged, I would be looking to buy a nearly complete project, and modify it from there.  Think it will work out ?Rusty

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Jim Sower
Crossville, TN; Chapter 5
Long-EZ N83RT, Velocity N4095T