This is emprit's Butterfly aircraft. I just made some modifications to (hopefully) help out with his R&D. This does fly! The nose wants to pitch down, so you have to continually pull back on the stick, and there is still a bit of a wobble if you try to maneuver much. I manged to fly this to the Beast at around 230 mph, but couldn't land. Even the autopilot can fly this.

To take off pull back on the stick and apply about 30% power. When in the air, retract the landing gear (and deploy stabilizers).

Modifications (so emprit can tell what I did to his baby):
1. Removed tail prop- it's rotation was one of the things that keep putting the butterfly into a right hand spin.
2. Reversed the rotation on the right side prop. Now the two props counter-rotate and balance out most of the torque.
3. Added a pair of vertical stabilizers underneath the fuselage (to minimize aesthetics effects) that deploy automatically when you retract the landing gear.
4. Added some small sections where the tail was with some weight to help bring the nose up.
5. Reduced some of the weight in front for the same reasons.
6. Activated trim on all the horizontal stabilizers, but even with full trim the craft pitch down.
Oh and I left the original parts to the side to make it easier for emprit to put them back in.

Hope this helps. It's a cool design.