- Nov 15, 2019
- Reaction score
- Cybertruck Owners Club
He didn't... he said .3When did Elon claim .35? thats pretty freaking good.
A couple of things. When Elon Musk was interviewed recently he spoke about the coefficient of drag and mentioned a couple of these factors. I do not recall him giving a value. When he unveiled the CT he said the value might go as low as 0.30 which would be really, really low for a truck. Seeing this calculation and having it be very close to what Elon Musk said about it tells me 2 things: (1) it increases the likelihood that Elon Musk knows what he is talking about, and (2) it increases the likelihood that this value is in the right ballpark. As for what the value means, it means that the predictions that Elon Musk made for CT range are probably achievable since drag has a lot to do with efficiency and subsequently range.Nice. Wish I had something smart to say about it, but I don't really know what it means. But it's pretty cool. I think. It's another feather in the CT cap. Yeah, less wind drag than its dino cousin, the F150.
An aircraft's weight doesn't change just because there is a lifting force on it, and the lifting force is the result of different pressures on the bottom and top of the airfoil. I have never done an analysis of a vehicle shape. Maybe the OP has.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?
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?An aircraft's weight doesn't change just because there is a lifting force on it, and the lifting force is the result of different pressures on the bottom and top of the airfoil. I have never done an analysis of a vehicle shape. Maybe the OP has.
Any lift would come from drag, yes. Hard to know if it's necessary drag or not, though, so hard to know if it's 'more'.Won't any aerodynamic lift also be accompanied by more aerodynamic drag?
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.What you're asking for is 'is there gravity reduction on the tires because of aerodynamic lift?'