Quote:
Originally Posted by 8307c4
That's awful interesting because on my truck, once I have a load going aerodynamics make little to no difference, it's all in how I drive, most of the fuel goes to push all the weight down the road...
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A lot is in how you drive, that's for sure.
But once it's rolling, a heavy load doesn't take much HP (relatively speaking) to keep it going on flat ground.
Uphill, it'll require serious HP and fuel, but you can regain some of that downhill.
Aero drag is always going to be an issue at speed.
That's why even on semis, people are tinkering with aerodynamics - from Don-Bur's bulged roof over underside appendages to various boattail designs.