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Old 02-10-2021, 01:16 PM   #13 (permalink)
aerohead
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Thanks John!
For a recap of the video, here's some tabular data used in the creation of the charts:
* All trucks of equal 6,000-pounds curb weight
* All trucks of equal 36- square-foot frontal projected area
* All trucks of equal Rolling-Resistance power absorption coefficient, and equal to that derived from empirical testing of the Tesla Model X
* Standard SAE air density ( rho ) 0.00238 slugs
* Fully warmed, straight, level, dry, calm, sea level, constant-velocity
* Horsepower X 0.7457 = kW
--------------------------------------------------------------------------
At 130-mph:
+ Cd 0.40 Road Load power = 144.9-hp ( 108- kW )
+ Cd 0.35 = 129.3-hp ( 96.4-kW )
+ Cd 0.30 = 113.8-hp ( 84.9-kW )
+ Cd 0.25 = 98.3-hp ( 73.3-kW )
+ Cd 0.20 = 82.9-hp ( 61.8- kW )
+ Cd 0.10 = 53.9-hp ( 39.5-kW )
+ Rolling Resistance Road Load fraction = 20.7545-hp
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