Quote:
Originally Posted by Christ
So in short, once the front/sides are cleaned up, the rear can be even more dramatically altered, allowing for steeper trailing angles which create less skin drag while maintaining attached flow.
Yes?
|
A wind tunnel is helpful here.And if you play the Daytona 500 mental movie in your head,while they say they could get to 22-degrees,well that was the backlight,no mention is made of the trunklid.
You could lay a straightedge across the trunkid up the back of the roof and read that angle.This would be more representative of the car's actual aftbody.There may have been an enormous locked-vortex residing there between the spoiler uprights.
Really,what you can say scientifically,is that for a Daytona 500,you can do what Chrysler did and get what Chyrsler got.
The case-specific approach seems the best and most fair for assessing.
Kamm's roof fails at the last foot.
Impact/EV-1 is dirty.
Ultralite is dirty.
I've not seen the Precept under smoke,but I would suspect they have some aftbody separation on that one.
I keep going back to driver outward visibility as the issue.