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Bed cover tuft testing
I made a 2nd attempt at a bed cover using a flat 4x8 sheet of wood strapped to a metal frame.
The front is just low enough to see over and the rear touches the end of the tailgate.
I tested with and without a simple vortex generator taped to the cab. That didn't make a noticeable difference.
Tuft testing showed the airflow along the rear half was moving to the sides rather than backwards, which was a surprise.
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