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Old 01-30-2018, 03:00 AM   #21 (permalink)
Angel And The Wolf
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Quote:
Originally Posted by Grant-53 View Post
A taper angle of 22 degrees in a boat tail is recommended. From "Aerodynamics of Road Vehicles" 5th Ed. pg 312
Was the 5th edition written when the National Speed Limit was 55 MPH? Another 20 MPH should mean a more gradual taper.

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