The Costella #988 Cd will be around 0.13-0.15
The way as Jim True got the air intake, it was more than enough to the
compressed air in front of the intake.
If you guys like to know how bad the Cd from a bike is - a standard house with
a normal roof got a Cd from around 0.7, so the bikes are not to far away. The
real problem by the bike ist the area behind the front wheel (in front of the
engine) and the rear end - the open rear wheel where the air can't collapse
properly.
See ya
Pork pie
"gary baker" <lsr350@hotmail.com> schrieb:
> list/ 2wheel jockeys
> Here are some interesting figures for the Suzuki Hayabussa and the Kawasaki
> ZX12R
> Results from Kevin Cooper principal research officer aerodynamics,National
> research council Ottawa Canada ( wind tunnel tests) rider on bike not sure?
> frontal area
> Hayabussa = 6.01 feet 2 (0.558m2)
> ZX12R = 6.09 feet 2 (0.566m2)
> Cda
> Hayabussa = 3.37 feet 2 ( 0.313m2)
> ZX12R = 3.67 feet 2 ( 0.341m2)
> Cd
> Hayabussa = 0.561
> ZX12R = 0.603
>
> I am suprised at the very high Cd figures there is enormous scope for
> improvement via streamlining just goes to show that motorcycles are about as
> aerodynamic as bricks as the Hayabussa is supposedly the most aerodynamic
> production cycle to date.
> hope you found these as interesting as I did
> Gary
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