If you havent started building yet, send it back. It is an awful plane. I had one that I had to replace all of the hardware including the landing gear and motor mount. I had to cut the aileron arms off and install servos in the wings as there were no busing on the horns and the balsa quicly gave way, letting the horns flay around. The incidents were way wrong. It flew best with four popsicle sticks under the trailing edge of the wing, four washers under the top left motor mount, none on the bottom right with some under the other two corners, to give it a slight bit of right and down thrust. I had to use four oz of lead screwed on the bottom of the motor mount and this is with an O.@ 52 four stroke mounted on the long Dubro aluminum mounts. It flew with about 1/4" down elevator to fly level at mid range, but on flare out on landing, there wasn't enough up elevator to get it to settle in right. I bought a spare wing and found that it, not the orginal wing, had a different airfoil on the tip of one wing than the root of that half had. I could see a couple ribs where the rib was 1/4" away from the bottom sheating. The covering was awful. The fuel tank split open. After fighting it for a few months, my instructor tried to save me from running into a power line when I lost it on approach for landing, and he hit a wood rail fence. He felt bad and I was happy to be rid of that one. Send it back.

Don