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Landracing Forum Home > Introductions > Formulas (Moderator: Seldom Seen Slim) > Nomograph relating CdA, BHP and MPH
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Author Topic: Nomograph relating CdA, BHP and MPH  (Read 10488 times)
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sockjohn
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« Reply #15 on: June 04, 2008, 04:47:08 PM »
Quote from: isiahstites on March 21, 2008, 08:34:39 AM
How do you figure what your coefficient of drag is?

Scott

Pay your bucks to the wind tunnel or do a roll down test.  I believe Jack D has experience in doing roll down tests.

I would have to dust off a book or two or do a bit of googling, so you may see what you can find on roll down tests.  In theory it's supposed to be easy IIRC.
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tortoise
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« Reply #16 on: June 04, 2008, 05:34:18 PM »
Quote from: sockjohn on June 04, 2008, 04:47:08 PM
I would have to dust off a book or two or do a bit of googling, so you may see what you can find on roll down tests.  In theory it's supposed to be easy IIRC.
Uh, see "Coast Down Formula", in "Formulas", this site.
« Last Edit: June 04, 2008, 06:39:20 PM by tortoise » Logged
Stan Back
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« Reply #17 on: June 04, 2008, 08:56:03 PM »
Jack started his tests at the local bowling alley -- and progressed to engineering wonders.
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comp
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« Reply #18 on: July 07, 2008, 07:24:45 PM »
Quote from: A2WindTunnel on May 30, 2008, 02:35:18 PM
There is some good info on wind tunnel testing at

www.A2WT.com

 cool link
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ronwoo
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« Reply #19 on: February 06, 2012, 02:32:20 PM »
Hello, I just went to open the nomograph, one of my favorite things, and it appears the link is broken. Is there another way I can get access to it?
Thanks, Ralph Hudson
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Hot Rod Lincoln
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« Reply #20 on: May 17, 2012, 04:43:21 PM »
^^^

I was wondering the same thing?

Is there another calculator to use that has the cd numbers?

Jon
« Last Edit: May 17, 2012, 04:45:36 PM by Hot Rod Lincoln » Logged
hotrod
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« Reply #21 on: May 17, 2012, 05:55:37 PM »
I suspect this may be an issue the web elf needs to sort out, the link might have gotten broken when they did the upgrade.

Larry
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ol38y
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« Reply #22 on: May 17, 2012, 10:58:42 PM »
The RB Racing link in #5 still works...
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Larry Cason
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2010 BUB 1350 M-PG record
2012 Speedweek  1350 A-PG record 169.975
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