Maximizing Efficiency: The Benefits of a Retractable Tailgate for Pickup Trucks

  • Thread starter Thread starter Loren Booda
  • Start date Start date
Click For Summary
SUMMARY

The discussion centers on the potential benefits of a manually retractable tailgate for pickup trucks, aimed at reducing aerodynamic drag during highway driving. Participants argue that such a design could improve fuel efficiency by at least 0.5 MPG. Reference is made to tests conducted by Mythbusters, which indicated that the position of the tailgate has minimal impact on drag due to the formation of a separation bubble that helps reduce pressure drag. The conversation highlights the need for innovative designs in truck aerodynamics.

PREREQUISITES
  • Understanding of aerodynamic principles related to vehicles
  • Familiarity with fuel efficiency metrics in automotive engineering
  • Knowledge of pickup truck design and functionality
  • Awareness of drag reduction techniques in automotive applications
NEXT STEPS
  • Research the impact of tailgate designs on fuel efficiency in pickup trucks
  • Explore aerodynamic modifications for vehicles, focusing on retractable features
  • Investigate the findings from Mythbusters regarding vehicle drag and efficiency
  • Learn about advanced materials and technologies for automotive design improvements
USEFUL FOR

Automotive engineers, pickup truck manufacturers, fuel efficiency researchers, and anyone interested in enhancing vehicle aerodynamics.

Loren Booda
Messages
3,115
Reaction score
4
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.
 
Engineering news on Phys.org
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.
 
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
 

Similar threads

  • · Replies 39 ·
2
Replies
39
Views
5K
  • · Replies 8 ·
Replies
8
Views
4K
  • · Replies 8 ·
Replies
8
Views
2K
  • · Replies 6 ·
Replies
6
Views
2K
  • · Replies 43 ·
2
Replies
43
Views
16K
  • · Replies 11 ·
Replies
11
Views
4K
  • · Replies 19 ·
Replies
19
Views
12K
  • · Replies 9 ·
Replies
9
Views
3K
Replies
3
Views
6K
  • · Replies 5 ·
Replies
5
Views
13K