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Originally Posted by Tesla
I have looked at a variety of ideas, but think the eliptical profile, if possible would be the best way to go for the entire trailer canopy.
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If you use the red line as a start , you're going outside the (rear of the towing vehicle + 4' of template) , which means you'd be adding frontal area.
Then, you'd also need to get rid of that again in the tail ...
Seems more logical to me to not add the extra area.
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Through it's inherent shape it would be the strongest/lightest structure and would also be more generic to a range of vehicles,
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It'd also be the least useful or practical shape - useful internal volume is important if the trailer has to do double duty as a camper / utility trailer.
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I would also have a rounded nose on it to help close the gap to vehicle.
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Which would be situated before "the red line", I presume ?
When thinking about "my" ideal aero-trailer, I end up with something shaped more or less like the Airstream Basecamp.
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But with a blunter nose to improve internal volume, without all the external disturbances, without the rounded rear (avoid that !), sized to match the intended towing vehicle, and continuing the teardrop a good distance further aft / down.
Streamline plates can then cover the gap between towing vehicle and trailer, hinged on the towing vehicle, and free-riding on the round(ish) nose and roof of the trailer.