| Almost done.What is not shown here is that the paper on the fuselage wraps over to the opposite datum line,
e.g. the left window bottom line.
All that remains is to connect the dots with a French curve, fold the paper
in half along the centerline, and cut along the projected line.
When the paper is unfolded the result will be a 1:1 template that can be used to mark the windscreen material for cutting.
In this example, the windscreen was cut from flat .030" poly sheeting, and the finished cutting template was used to mark the plastic stock
for cutting.
Cutting pre-formed canopies (or scoops, or cowls, or whatever) is even simpler : project the cut line from the 2-D view directly onto the object being cut.
I hit on this process after several muffed attempts to use the templates supplied with the kit I was working on.
Despite scanning the 2-D views and printing them out in half a dozen ratios, I could not make a template that matched the fuselage. Perhaps that was because during the decidedly long construction of the fuselage, the wood of the model and the paper in the plans shrank and swelled at different rates and in different directions.
Using this process I made a cutting template that fit on the first pass.
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