As usual this will be a molded fuselage. To produce the plug my method has been to transfer the profile onto a sheet of MDF. Glue expanded polystyrene to both sides and hot wire the top view then eyeball the rest. For this one I want to cut extruded foam slices on my CNC foam cutter and mount them on a length of rectangular section ali tube. This would require minimal sanding. I also get to look at the 3D version of the design as it needs to be modeled in a 3D CAD program first. I have recently moved over to Fusion 360 and spent some time getting to know it. This project was a good one to advance my CAD skills. It took a few attempts to work out a strategy in Fusion using the profile view from Autocad. I ended up doing it with 6 lofts, 2 rear fuselage, front fuselage, canopy, chin cowl and fin. I only lofted the right side of the fuselage then mirrored it for the left side. At the end of it my laptop was starting to struggle and it is no slug (8 core i7 16gb ram video card). Once I had the model I was able to massage the look and insert the motors to check for fit. The YS can move a lot rotationaly so was able to allow for that. The cowl may need a little blister to clear the exhaust during large excursions (backfires). Once I had it modeled I was able to work out where to cut the chin cowl and canopy hatches.