I have a fondness for Biplanes and Triplanes. I subscribe to the saying: “Real airplanes have two wings, round motors, and an open cockpit.” My favorite airplane is a PT 17. This laser cut Ringmaster Jr. Bipe has a 28” wingspan and 277 square inches of wing area, that is 41% more wing area than the Ringmaster Jr. It is for .15 to .20 engines. The interplane struts align the two wings parallel to each other. The CAD plans show all parts full size. The kits are $80.00 plus shipping 3 pounds from zip code 60449