Roy it took a while to get back to you sorry . yes I believe he does have a computer program that the dimensions are on and can reproduce them at will . The wing is slightly bigger and when he took apart the old wing I sent him we found it was built all wrong and did not have any wash out in the wing . Also the landing gear supports were there but not really tied to anything so they tour out easy . There is a lot to do with a foam core wing when you get it from him . there are no cut outs for servos , landing gear or wires . This all has to be done . I found by reading the internet there are easy ways to do this and when I tried them it was a snap . I think I could build the second one in about a week . I used Gorilla Glue on the entire wing and it worked great . I have not flown it yet as the weather has been wet but soon I will fly it and put an update on this site .