RE: Why semi-displacement (or semi-planing)?
Yes to stay warm but a lot of truck drivers arn't too bright either and a very high percentage of them don't own the truck they drive. And then there are millions of pickup truck drivers that emulate the commercial guys and leave the diesels running. And then there's the boaters emulating the fishermen. Why do they call them fishermen? Frequently they are not shipwrights, boat repairmen or even boat operators.
Eric Henning
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