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And the coastdown figures are in.
For a frontal area of 1.847 M^2 I get a Crr of 0.024 and a Cd of 0.386
Which doesn't come as any surprise, although .45 wouldn't have surprised me either. I did the tests beside the airport, so I had accurate temperature, humidity and pressure off their website, and a flat section of road without too much traffic. For speed measurements I used my dads vericom VC200 performance computer and a digital camera, which gave me speeds accurate to .1 for the first 60 seconds after take off and .2 for the next minute. Although none of that means that the 0.386 is necessarily accurate, but it at least takes human error out of the equation.
Now its time to try and get that figure down a bit, and still keep my '64 looking like a '64
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