RE: CD Scaledesigns Pup build
I have started to cut up the drawings to work over. The pix below show two of them stapled to my building boards, one for the left lower wing, the other for the fuselage - where I intend to start.
One issue for the fuselage is the tail construction, to conform to the RAAF Pup I am doing. The photo below was drawn over in Photoshop, then scaled to model size and printed out to compare the kit with the actual aircraft. I have started a rough layout of that area (also shown below). The tailwheel turns out to be 1" in 1/6th scale, which is easy to get. The tail skid has its pivot forward from the kit design so I will make that modification, setting its pivot from the rear rudder mount post rather than from the tail post. Kit design calls for 1/8" brass tubes (3mm) in the fin and fuselage - and 3/32" music wire within the brass tubes. It also calls for a 5mm brass tube for the tailpost.
I will change to a wood dowel for the tailpost. The music wire will become 1/8" wood dowels and the 1/8" brass tubes will become 5/32" aluminum tubes and be only in the fuselage, not the fin part.
I need to layout the new tailskid, its mounting and control wires - which will have to slave to the pull-pull rudder cables, probably using a floating crossbeam with the tailwheel pull-pulls coming off nearer the center to create a better steering ratio than the rudder cables would otherwise provide. The tailskid suspension must also be designed and laid out.