Diehard

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Won't any aerodynamic lift also be accompanied by more aerodynamic drag?
F150 already has the drag. Having the drag is inevitable. The question is if this shape in addition to reducing the drag has other benefits (like lift).





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Crissa

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More like Friction reduction. If the lift works against the weight, theortetically there would be less contact. It would be like having more air in the tire or smaller economical tire. Bothe of those usually result in better gas millage.
Sure, but it's less friction because the wheels are operating under less force of gravity. ^-^

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Diehard

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Sure, but it's less friction because the wheels are operating under less force of gravity. ^-^

-Crissa
We are on the same page. I just didn’t want to say yes to avoid someone getting on my case saying the force of gravity does not change since mass of earth and CT remains the same. Otherwise we are both talking about the same thing.

Other than decades ago messing with some elementary FEA software, I don’t have any experience with aerodynamics. It would be fun to put this thing in a wind tunnel and keep tweaking stuff to see what happens. It is hard to conduct any experiments on a highway with so many variables and especially in my area a high likelihood of a lawyers driving behind me.
.
 

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Do you guys think CT is lighter at higher speed due to having less air pressure on top like aircraft wings? Or you think the impact is negligible because there is a lot less surface area and speed?
it wouldn't be lighter because its mass or density won't be reduced - you're talking about lift . Planes aren't lighter at higher speed.
 

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I probably should have worded it better. The question is, would it reduce energy consumption due to reduced stress (and may be contact area) on the tires?
Not on pavement. Any reduction of rolling friction would be countered by more aerodynamic drag from the lift. If you were on gravel or dirt, I suspect you would see a significant benefit.
 

Jhodgesatmb

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We are on the same page. I just didn’t want to say yes to avoid someone getting on my case saying the force of gravity does not change since mass of earth and CT remains the same. Otherwise we are both talking about the same thing.

Other than decades ago messing with some elementary FEA software, I don’t have any experience with aerodynamics. It would be fun to put this thing in a wind tunnel and keep tweaking stuff to see what happens. It is hard to conduct any experiments on a highway with so many variables and especially in my area a high likelihood of a lawyers driving behind me.
.
When I was in school we had some miniature wind tunnels and I put some tent designs (made of balsa wood) in them. I bet some students would get a kick out of running some truck designs in the small tunnels (cross section about 25 square inches) as a class project. Alternatively, maybe one of the Tesla freaks working at NASA Ames (etc) could get after hours access to a small tunnel (I really have no idea how the tunnel access works over there so it might be quite impossible without funding) to do some testing.
 

mlee168

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I would love to see how towing a trailer would affect aerodynamics compare to a F150. With a trailer, the aerodynamics could be the same as a F150 or worse when towing a trailer.
 

FutureBoy

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I would love to see how towing a trailer would affect aerodynamics compare to a F150. With a trailer, the aerodynamics could be the same as a F150 or worse when towing a trailer.
Probably has a lot to do with the exact shape of the trailer. Some shapes/sizes work better on one or the other.
 

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