Lets see if I can give any useful info. The kit was made by EZ-Flight out of Canada and is called the Bat. It was designed for a direct drive speed 400 and an 8 cell 1000 mah. pack. I roughly measure the wing area at 225 sq. inches. It is a semi-flying wing with foam cores. The web site is temporarily closed so no formal info is available at this time. The kit is very well done but little in the way of statistics are included. I've seen videos of the plane in flight and was very impressed. I figured this might be a good test bed for a small diesel. I'm NOT interested in speed as much a thrust. I have reached the point in life were a relaxed flight is appreciated. Thanks again for any help you can provide.