That third graph is what I was worried about Phil. It plots the height, not the angle and shows an increase as the height goes above a small value.
Opposite over Adjacent = 7/96 =.072916
angle is 4.17 degrees.
The ground clearance is 12", and yes it would have radiused corners.
If this long rising diffuser helps, I'd make a 4 sided boat tail instead of the simple two sides, two rounded corners, and top.
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2007 Dodge Ram 3500 SRW 4x4 with 6MT
2003 TDI Beetle
2002 TDI Beetle
currently parked - 1996 Dodge 2500 Cummins Turbodiesel
Custom cab, auto, 3.55 gears
Last edited by skyking; 07-16-2016 at 12:00 AM..
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