View Single Post
Old 01-30-2018, 03:00 AM   #21 (permalink)
Angel And The Wolf
Master EcoModder
Join Date: Nov 2013
Location: Texas
Posts: 676
Thanks: 20
Thanked 145 Times in 129 Posts
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.

  Reply With Quote
The Following User Says Thank You to Angel And The Wolf For This Useful Post:
aerohead (10-23-2020)