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CdA guestimates sought



 
 
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  #11  
Old May 9th 08, 07:44 AM posted to rec.bicycles.tech
Robert Chung
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Default CdA guestimates sought

On May 7, 4:30 pm, Andre Jute wrote:
The aerodynamic coefficient Cd (or Cx for Europeans)


I was under the impression that both in the US and in Europe Cx is
used to denote the coefficient of drag in the direction of travel.

If you want to work in Watts the formula becomes:
Cd = (W x 197)/(Av^3)


That implies pretty low air density.

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  #12  
Old May 9th 08, 01:09 PM posted to rec.bicycles.tech
Clive George
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Posts: 5,394
Default CdA guestimates sought

"Robert Chung" wrote in message
...
On May 7, 4:30 pm, Andre Jute wrote:
The aerodynamic coefficient Cd (or Cx for Europeans)


I was under the impression that both in the US and in Europe Cx is
used to denote the coefficient of drag in the direction of travel.


Cd in the UK. I had a CX, named after the french equivalent.

cheers,
clive

 




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