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Basically looking from the tail back to the widest section, kind of like the rib cage of the beast, cross sections down the length of the tail at 300mm intervals.
I put these together while I was looking at how to construct a trailer canopy, the idea being that I can print out the co ordinates of each section, transfer to cardboard, cut out and then line up sections to create a formwork to put the skin on.
Not exactly the same as template, but very close and as we don't know how accurate the details of the template are originally, no offense to Phil, but I also graphed rates of change in the template angles and found that it is a twin hump curve and I imagine good airflow would want consistant change and not be accelerated and then decelerated multiple times. This inconsistancy I believe comes from incorporating a number of rules, but the numbers and angles have been rounded hence the template as we know it does not have a specific equation, but I've found a couple that come very close.
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