Register to reply

Retractable tailgate

by Loren Booda
Tags: retractable, tailgate
Share this thread:
Loren Booda
#1
Jul9-08, 11:31 PM
Loren Booda's Avatar
P: 3,408
Why don't pickup trucks come with a tailgate designed to retract (manually) before highway driving when practicable? It seems self defeating to have such inefficient drag as from an upright tailgate. I believe that by this retraction the truck's highway consumption would increase by at least 1/2 MPG.
Phys.Org News Partner Science news on Phys.org
Climate change increases risk of crop slowdown in next 20 years
Researcher part of team studying ways to better predict intensity of hurricanes
New molecule puts scientists a step closer to understanding hydrogen storage
Danger
#2
Jul10-08, 12:51 AM
PF Gold
Danger's Avatar
P: 8,964
I'm not sure about the efficiency of that. Someone (I think that it was Mythbusters) did some tests that showed not a lot of difference in drag with the tailgate up or down. That's all that I have for now, since my memory is failing.
ank_gl
#3
Jul10-08, 05:44 AM
P: 733
yes, they showed that tail gate up maintains a nice separation bubble behind the tail gate(towards the truck), and act as a boundary for incoming stream, hence reducing pressure drag


Register to reply

Related Discussions
Why do you tailgate? General Discussion 83