Quote:
Originally Posted by PeterS
Hi Redyaris ,
A new bloke here ,could you tell me how you derived the above drag numbers ? I had always assumed a normal motorcycle with sit up and beg riding position had a cd of around 1.2 .Do you have a link that would help me ?
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Aerodynamics of road vehicles edited by Hucho the chapter on motorcycles. If you look at any standard text book on fluid dynamics you will find that a flat plate has a Cd of 1.17 a parashoot is at 1.4, a large bird is at 0.4, most modern cars are between 0.3 and 0.4, etc.