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Old 01-09-2018, 12:27 PM   #1 (permalink)
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Tailgate attached partial bed cover.



https://youtu.be/MT-eTZjzrgo

This flip up partial bed cover is interesting. This video is the first time I have seen it. I would like to build one.

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Old 01-09-2018, 05:33 PM   #2 (permalink)
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Interesting bit starts at 3:15

It's a top-hinged flap attached to the inside of the tailgate that opens upward and makes a flat surface on about the last 1/4 of the bed length.

Magna says it's more aerodynamic than a full tonneau.

Similar claim as GM's partial tonneau - but with much less "tonneau" area.
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Old 01-09-2018, 05:38 PM   #3 (permalink)
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It would be interesting to see if there is a difference between a partial and a full bed cover by testing. I could do it once I build a partial.
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Old 01-13-2018, 12:45 PM   #4 (permalink)
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tonneau length and Cd

As early as 1981,Ford knew that 12-inches of plywood,spanning their pickups bed rails,ahead of the tailgate would show at the gas pump.
In 1986,GM's drag table for their C-10 pickup indicated a drag minimum right at 50% coverage (rear-to-front).
The TESLA claim may be valid only for this specific vehicle.
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Old 01-13-2018, 01:01 PM   #5 (permalink)
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Quote:
Originally Posted by aerohead View Post
The TESLA claim may be valid only for this specific vehicle.
It's a component supplier called Magna. They're developing 3 "active" things aimed at the pickup truck market; grill flaps, front spoiler that deploys at speed, and a flap that attaches to the top of the tailgate inside the bed and flips upwards.
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Old 01-13-2018, 01:03 PM   #6 (permalink)
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Had to dig up this old classic:



Now if they could combine it with a wing.

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