Well here is the agreed on size. The fuse is 138" long from tip of radome to rear of bomb bay fairing. With the nose probe and what the rudder hangs over adds a bunch more length. The cross section locations on the Phil Nuckles plans look very close tp the Russian image that ppljr found in the previous post. I think we will use the Russian bulk heads and shape our own for what is missing. One will need to be positioned just in front of and just to the rear of the landing gear location. those two will also accept the wing plug ins. it will be similar to the way I constructed the 1/4 scale Panther center section. that is Vladimir and a 4' ruler in the pix for reference.