G Washburn said: March 8, 2010 6:57 am PST
We are building a Sopwith Strutter from original plans. The only modification is the fuselage we are using 4130 tubing. We also have been unable to find original 121 section tubing, but I did find a possible alternative. If you are interested e- mail me. You can check out our progress at www.aimschool.com