I have under construction for more years than most of you have been alive (1959), a controlline model. I know, I am a terrible procrastinator, but I still want to finish it and fly it. It began as a plan from a model magazine of the C-122. It is extremely difficult to find info on this aircraft. Very few pictures available on internet or books. The XCG-18 cargo glider was modified with two engines to try for a USAF contract. Only 12 C-122's were made and served in Alaska. In order to try to get accurate plans, I sent to the Smithsonian and they didn't have complete plans but I bought copies of what they had. The plan you show they had with the kit would be great, better than what I have. I'll sent pics of the incomplete model if you want, and go to the shop to find the data.