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Peter7307 · 01-18-2009, 10:54 PM

I have cut / pasted a few sites from my booklist which may help.
NACA evolved into NASA and RACE Magazine is a local (Australian) car tech mag. They ran a series of article on aero wings and profiles and how to build them.

naca.larc.nasa.gov.
http://www.hanleyinnovations.com/racecar1.html
Race Magazine - Home

Look specifically for wings / section with the numbers E 423 (E is for Eppler) and NACA
4415.
The NACA numbers mean:
First number: amount of camber of the mean line
Second number: Where it occurs
Last two numbers: Thickness to chord ratio.
So for 4415: 4 degrees , 40 % back from the leading edge ; with 15% t/c.

Hope this helps,

Pete.

01-18-2009, 10:54 PM	#2 (permalink)
Peter7307 Master EcoModder Join Date: Jan 2008 Location: Victoria , Australia. Posts: 499 Thanks: 20 Thanked 46 Times in 33 Posts	I have cut / pasted a few sites from my booklist which may help. NACA evolved into NASA and RACE Magazine is a local (Australian) car tech mag. They ran a series of article on aero wings and profiles and how to build them. naca.larc.nasa.gov. http://www.hanleyinnovations.com/racecar1.html Race Magazine - Home Look specifically for wings / section with the numbers E 423 (E is for Eppler) and NACA 4415. The NACA numbers mean: First number: amount of camber of the mean line Second number: Where it occurs Last two numbers: Thickness to chord ratio. So for 4415: 4 degrees , 40 % back from the leading edge ; with 15% t/c. Hope this helps, Pete.