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Yes, I’m absolutely confident I can beat a box style UHaul trailer modified as you described if interior volumes matched(UHaul 6x12 would be closest). The small UHaul enclosed trailers are pretty good starting points aero wise. Nice rounded edges, etc. When modified even better for sure.
I haven’t seen your design. Please share….
Starting from scratch offers me a significant advantage.
Tools, space, skills. I have a sufficient amount of all 3. I’m a wooden boat builder/restorer with 25 years experience in the higher end of the market. Wood, metal, carbon, composites, etc. Plenty of experience with each.
My limits on what I can build are more constrained by justification of the cost/time to entertainment ratio. Far more than dollars and cents FWIW. For example, I’m not inclined to build a full production quality negative mold of a compound curved trailer and build a one off trailer with a vacuum resin infused carbon/honeycomb/carbon method. That would represent an outrageous expenditure of time and effort for such a one off project. And no I’m not inclined to go into the custom trailer business either.
Wood is my preferred medium visually as few things to me are more pleasant than a varnished interior of a boat (or enclosed trailer)
For a standing height trailer, I’d consider 1/4” birch aircraft ply with 1” Divinycell foam over it(rounding the corners) followed by 2 layers 7oz glass cloth set in epoxy. Prepped smooth, and sprayed with an automotive finish. Varnished inside, well insulated, lightweight. Well suited to one off construction.
An expanding height trailer gets a bit more complicated, and a bit heavier. But lower drag potential, and more challenging and unique.
George
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