Thanks.
If we give the ferrari L/D ratio of 3, the wheel L/D ratios match very close to those given by Greg Lecock. Maybe they are from an F1 car too?
Originally posted by NRoshier I wonder how different, if at all, it is for different wheel rpm/tyre surface speed? any known effect? Actually forget this, on reflection it seems a silly question.
Rotating wheel has lower drag and lift than a stationary one. I don't know how much, but it's significant.