[aerohead]

For Klemperer's Cd 0.15 -0.16 model :
*Search for Phil Knox aerodynamic photo albums
*go to Book illustrations
*page-1
*Row-5
*2nd graphic from right
*2nd image from top
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Klemperer was a graduate engineer working under Paul Jaray at the Zeppelin Werke in Germany who received his P.hD. within a year.
In 1921 Klemperer tested wind tunnel models in the Zeppelin wind tunnel for Jaray and also tested this model for himself.
He measured Cd 0.16 in 1921 and published in 1922.
It appears that Hucho came up with Cd 0.15 with the same model in a modern wind tunnel during the work on the VW 2000 project.
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Klemperer measured Cd 0.13 for Paul Jaray's half-body 'pumpkin seed'.Hucho's 1970s re-testing suggests that Jaray's pumpkin seed would be belowCd 0.13. Jaray's pumpkin seed is the premise of the 'Aerodynamic Streamlining Template.'
This form has been used many times for record vehicles.The British are using it this year at Cambridge University for their go at the World Solar Challenge.