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Old 04-20-2023, 11:29 AM   #32 (permalink)
aerohead
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ask yourself

Quote:
Originally Posted by Cd View Post
Phil, I think you might have to ask this question yourself, since you can understand what his reply was. He spoke about how that drag is being reduced each decade, but I didn't understand his answer on how to get to .09 cD.
I'd love to hear a conversation with you two in the future.
Thanks.
Geoff thought I ought to talk with his dad on the phone, but I figured his, and Mr. Romberg's time was too valuable to burn on the phone, and I could wait until I got there with Spirit and the newest mods before pestering them to death.
Geoff did share some extremely powerful info regarding A2, AeroDyne, and Windshear ( Gene Haas Racing ) collaboration studies, which I should leave to Geoff or Gary talk about, if willing, as I interpreted the data as confidential.
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The Cd 0.09 WILL be an interesting 'story.'
During all the hoopla over Sunraycer, one automotive journalist mentioned that Sunraycer , with it's full wheel fairing package ( not raced with ), measured the lowest Cd ever experienced for a 4-wheeled vehicle, at Cal Tech's GALCIT tunnel (below Walter Korff's 'Goldenrod, Cd 0.1065 ), in the neighborhood of Cd 0.089. If factual, this would place Sunraycer below HONDA's 1993 Dream.
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