I got the plans way back in 1998. I suppose some details just faded away on the master copy till they send it to you guys

.
Mark you are right about the R13 rib for the rudder. It is exactly the part you guessed on the plan. Don't give up on the plans. I'll be happy to help you out with any missing info or other details you would want when making the plane. The ronson can fuel tank kept me bogged down for quite a while, 'cause it wasn't available here and the thought of permanently sealing a custom made tank inside the nacelle was too unsettling for me. Eventually I have altered the wing design so that the outer panels are removable from the center section and the hopper tanks inside the nacelle area are accessible for maintenance from the end ribs of the center section.
The all up weigth for my machine is going to be in the 12lbs range, owing to heavier scale-looking retracts, 9 servos (2 aileron, 2 throttle, 2 flaps, 1 retract, 1 rudder, 1 elevator). I think two .51s would give me the leverage to not worry about being short on power if other fun stuff needs to be added (like the paratrooper dropping thing). Also I have a feelilng that the whole thing will come out tail heavy and I would rather have heavier engines up front than some dead weight in the nose.
Osman