The Flying Doghouse was a handful. I had 4 more-or-less white-knuckle flights, 3 of which ended as a crash. (Side note - I used Goop for the coroplast-to-coroplast joints, which seems to stand quite a bit of abuse; Gorrila glue was used for the foam-to-coro joints) I built it from the FlyingThingz kit, but with a Hobby King .60 equivalent electric motor, 6S 2200 lipo. This is plenty of power - possibly more than is needed.

One of the big issues is that it wants to nose over on takeoff, at least on our grass runways in Michigan. This did some damage to the motor shaft, as the prop stops, but the spinning electric motor bell still has lots of momentum.

2nd is that it is hard to get it off the ground - doesn't seem to be enough elevon authority to get it to rotate.The side walls were modified to give more ground clearance (took off 1 'rail' on the bottom).

3rd was that it really only wants to turn one way - left. Right turns were difficult - maybe piloting technique could improve that. Apparently you should normally fly at about 1/2 throttle, and throttle up for turns (so advised after I had the local 'top gun' fly it). Roll stability was generally acceptable, but in a right turn it wants to dive for the ground.

I've since modified it - moved the electric motor down about 3 inches, hoping that would reduce the nose-over moment for takeoff. I also moved some of the nose weight down to the nose wheel axle,

In my experience, it was never in control well enough to safely fly it in front of a crowd. I've thrown in the towel; gave it to the local 'top gun' (the same guy who flies the lawnmower). He thinks he can fly it for our airshow team. I hope he can make it work