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Old 01-03-2021, 11:40 AM   #13 (permalink)
COcyclist
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Join Date: Dec 2007
Location: NW Colo
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TDi - '04 VW Golf
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Quote:
Originally Posted by JulianEdgar View Post
What does this show when you do it windows up / windows down?
Good point. I did the testing using cruise control over my flat test road of roughly 2 miles (3K?) in my wheel cover test, before I saw the windows up/windows down idea. I may be able to test my testing method in the next few days. I will report back.
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Quote:
Originally Posted by freebeard View Post
The power needed to push an object through a fluid increases as the cube of the velocity. Mechanical friction increases as the square, so increasing speed requires progressively more power.
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