I have looked at the three foot boat tail for the travel trailer and it looks good. It could potentially reduce the rear wake area by 35%, that is from 59 sq ft to 39 sq ft. I am having a bit of trouble designing the front tapers for the trailer however. I would like the tapers from the edges steeper but to do it with one piece on each side the front would have to be too wide. Then the front could run into the truck in a tight turn. Looks like I may need a two piece/two angle side. I think this is doable but adds another complexity to the build.
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