At the 2005 Performance Workshop, "Aero" Ned Madsen, an Aeronautical Engineer by trade, gave a presentation on the subject and how it related to our Corvairs. He also offered for $5 a CD with some helpful files and a copy of the presentation, with the profits going to the CORSA Racer's fund. More about that in a moment.
It's worth noting that a Corvair, relatively, has a good size frontal area with a small engine. You can't just shove the car through the air, you need to finesse it, much as setting up the suspension will usually gain more than trying to build a point and shoot car. I have only skimmed the information so far, but I think all of us can find a few useful tips among all the information.
Now, when I suggested putting this up on a web site, Ned thought it was a great idea, "But I liked handing that pile of money to Warren. I'd like to do that again." So, here's what *YOU* can do - just Paypal Ned the money instead, and download the zip file below. Clicking on the Paypal link below will open a new window direct to the Paypal site, just send your $5 to Ned at AeroNed@aol.com (sorry, no credit cards), then click the link right below and save the zip file to your hard drive and expand it. I'll warn you now, give yourself some time to read everything, there's a lot of good info here.
Click on the logo to open the PayPal site in a new window.
If you don't have a PayPal account, drop Ned a line for his address and you can mail a check.
Ned has since done some tuft testing:
All images courtesy Ned Madsen.
"I uploaded the photos from the aerodynamic experiments the GNRT did last winter (2006-2007). We covered half of two cars with tufts of yarn. Then we drove them past the photo chase car. The yarn shows how and where the air is flowing.
Special thanks to Jim Dallas and Terry Kalp for their help in this experiment.
Check out all the photos at the GNRT site: http://members.cox.net/gnrt/"