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Old 02-15-2019, 08:53 AM   #194 (permalink)
Bicycle Bob
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Join Date: May 2008
Location: N. Saskatchewan, CA
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Appliance White - '93 Geo Metro 4-Dr. Auto
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Originally Posted by kach22i View Post
The reason a golf ball has dimples all over is the ball's orientation in flight cannot be guaranteed as the ball may spin. If one could maintain non-rotating flight, dimples on the aft half would help, but making it teardrop shaped for attached flow would be even better - but then it would not be a ball.
I don't have the reference handy, but tests showed that a non-rotating golf ball could maintain attached airflow as well as a dimpled one with a single thin ring added to trip the airflow into turbulent condition at about 2/3 of the diameter. At or past half-way, it was too late to help.
There is no excuse for a land vehicle to weigh more than its average payload.
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