The plane I got is call a perfection the fuselage is 48" long the wing sits 7" from the fire wall the wing root is 12".I have place the battery under the fuel tank and the receiver is just under the front of the wing I use a K&B twister engine. I have 5oz mounted on the motor mount and 8oz inside the fue tank well and I still need 8 more oz on the motor mount to balance it.