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The optimal case would be a fifth-wheel hitch. With a convex quarter-spherical nose on the trailer and a concave quarter-spherical tail* on the tow vehicle, centered in the hitch.
Polished stainless steel surfaces at a fraction of an inch gap. Blown gap. The exhausted air would constitute a Shauberger Trout Turbine and provide forward thrust through the Coanda effect.
* Two separated axes of rotation like a surveillance cam.
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.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
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.Three conspiracy theorists walk into a bar --You can't say that is a coincidence.
Last edited by freebeard; 08-18-2021 at 08:49 PM..
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