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Old 02-24-2017, 12:48 PM   #41 (permalink)
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cover/ wing

Originally Posted by voyagerX View Post
Sorry for bringing up this old thread. I found a good deal on a tonneau cover for my truck and been reading those threads about design and portion of cover will help on aerodynamics. We need the full cover to protect the stuffs and thinking to add a simple wing if that will help. Any insight? TIA
*For some trucks,a 1/2-tonneau had lower drag than a full tonneau.

*A 1/2-tonneau plus cab-wing had almost as low a drag as an aeroshell.

*A 1/2-tonneau,plus cab-wing,plus half-aeroshell blister has essentially the same drag as an aeroshell.

*Adding a conventional spoiler on top of a full tonneau may have no effect as far as drag goes.The tonneau provides for the captured-vortex,reattached flow and, kills the rear lift.An additional spoiler might provide downforce at the expense of higher drag.We have no data from research on this topic.

*The more you can make your truck like a passenger car,the better off you'll be.This GM-Holden Ute is Cd 0.309.The World's lowest drag production pickup.

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