RE: Super Sportster twin...
My Super Sportster Twin 260 is coming along. Here are some "in the bones" shots.
It is 80" wingspan, uses two OS 61 FX's and has tricycle mechanical retracts. Other airframe mods include extending the wings one bay on each side, increasing the size of the tail surfaces 25%, tapering the rudder and elevators to a sharp trailing edge and using dual throttle servos, dual aileron servos and dual elevator servos.
I started with a partial Super Sportster 90/120 kit and a set of Super Sportster Twin plans from RCM, but the differences from the original 40 size twin were too great and I had to re-engineer the bigger size.
As of now, it is ready for final sanding and covering.
Jim