I agree with Minn flyer. My son and I have built three of them and the back edge of all 3 wings has been trimmed to fit into the fuselage. You will need to get to the point where the wings mounts to the fuse and see what needs to be trimmed. Ours are about an 1/8 inch and one of them is about 3/16 inch notch. Good luck and rest assured, they are a sweet flying plane. Good Luck, Dave