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Old 07-30-2023, 03:12 AM   #20 (permalink)
freebeard
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I know what you're saying, but... it is the aerodynamics forum.

Corvallis, OR's Da Vinci Days has a pedal power threeway race -- street, mud bog and river. They had creative entries from canoes with tricycle wheels to a yellow plastic septic tank with a crew of four or more, paddle tires from a UTV and a stereo blaring 'Yellow Submarine". Fossil Fuel Free material.

Years ago.

A threeway course -- land, sea and air could have an efficiency index. Like the Mobil Economy Run.

Quote:
Mobil Economy Run
Mobil Economy Run was an annual event that took place from 1936 to 1968, except during World War II. It was designed to provide real fuel efficiency numbers during a coast-to-coast test on public roads and with regular traffic and weather conditions. The Mobil Oil Corporation sponsored it and the United States Auto Club sanctioned and operated the run.
More at Wikipedia
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