"Aero" wheels - a new car design trend?
Discussion
Hazuki said:
SpeckledJim said:
They seem a good idea to me. When a car is doing 70mph its 'top' spokes are doing nearly 140mph through the air. That's a lot of drag and noise.
Surely you mean revolutions rather than MPH and would be closer to around 700-1000rpm (depending on wheel size)?Sorry not sure if I'm being thick here, but I'm not sure how any part of the car can be doing more than 70mph if that's what the car is travelling at.
In the same way that helicopter blades do.
The reason they're becoming more popular is that CO2 regs are getting tighter and have real monetary impact to the companies, and for BEV vehicles, the efficiencies of the vehicle are so high that any loss contributes a significant percentage to the overall range.
https://www.caranddriver.com/news/a30169467/tesla-...
3% range impact. They don't make anywhere near as much difference for an ICE vehicle because they're already hugely inefficient.
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