The KingCat does require mixing tweaks.....it does have proverse roll when applying rudder for knife edge as well as canopy push.....easily mixed out with rudder/aileron:elevator mix on the 10X........

It also needs differential on the ailerons to get rid of the barrel on the rolls......you can get it to do a very nice axial roll quite easily......

Actually, my Rhino clears the ground if the mains stick up, as do most KJ-66 engines if you have the engine mounted correctly.....Peggy's do grind some asphalt so must be protected with plates like Barry fashioned for Buck Garza......

I have seen BV and others do some impressive pattern flights with the KC......only thing it lacks is a real clean entry and exit to upright (+G) spins and flicks due to the wing planform......same deal with the BobCat and Bandit using a similar wing planform, but outside (-G) spins and flicks are clean.....

As far as downthrust, have to ask BV, or Bob Parks, or some other aero engineer to spell out all the force vectors on the bird at full throttle, idle and all points in between to answer your question.....my answer, it works....plane is dead neutral in pitch from idle to full throttle......only complaint is that it does scorch our grass field quite a bit, but only browns the grass blades.....alway come back green after a little rain.....actually, the Bandit is almost as bad with it low-set pipe outlet....


Tom