Quote:
Originally Posted by mikeyjd
What kind of mpg would a shape like this be capable of?
|
It' raining today and I walked here without my briefcase,so no calculator.Sorry.
Here's a graph for a car of 22-sq-ft frontal area and 3,400-lbs curb weight.
Looking at the right hand side you'll find a line for Cd0.10 which is close,and you can compare the road load to that of another Cd.
If the BSFC is maintained through gear-matching,then the new fuel consumption will mirror the reduction in road load.
Here is a road load curve for HONDA's Dream-2 solar racer,of Cd 0.10,a lightweight tandem,maybe 9-sq-ft frontal area (I'd have to look).
You can see that at 100-mph,it requires less than 6-kW to move it.That's a 300-mpg car!
