Extreme Speed Prop Planes Discuss the need for speed with fast prop planes (Screamin Demon, Diamond Dust, Shrikes or any REAL sound breakin'''' plane)

Airfoils for fast aircraft?

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Old 02-17-2005, 12:45 PM
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Default Airfoils for fast aircraft?

I am scratch building a jet and want it to go really fast, so what airfoil is the best?

Thanks for the input.
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Old 02-17-2005, 12:55 PM
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Default RE: Airfoils for fast aircraft?

what style jet? weight? engine ? prop ? intended top speed ?
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Old 02-17-2005, 05:21 PM
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Default RE: Airfoils for fast aircraft?

I like the Naca 10 inside airfoil with a naca 9 outer
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Old 02-17-2005, 07:03 PM
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Default RE: Airfoils for fast aircraft?

THIN...as thin as possible.
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Old 02-17-2005, 08:43 PM
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Default RE: Airfoils for fast aircraft?

Depends on the size of the jet.... if it is big enough you can get by with a thinner airfoil than the NACA 10... structural integrity is your main enemy...
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Old 02-18-2005, 08:58 AM
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Default RE: Airfoils for fast aircraft?

Something like a 64A010, if built precisely, has lower theoretical drag than the NACA 10. Also, I believe it has the high point of the airfoil further back which can make a bit more room (height) for the main retracts in a tricycle gear setup.
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Old 02-18-2005, 11:11 AM
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Default RE: Airfoils for fast aircraft?

I really don't know the specs yet. I was going to build something around the wing once I figured it out. What I do know is I want all up weight at around a lb or lighter and I am using a .15 ducted fan unit, other than that it is wide open.

Where can I find the NACA 10 and the other airfoils mentioned?
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Old 02-18-2005, 11:41 AM
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Default RE: Airfoils for fast aircraft?

http://www.profili2.com/
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Old 02-18-2005, 01:21 PM
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Default RE: Airfoils for fast aircraft?

I have a question, which program will show sweep of a wing. In other words, if I have a naca 10 airfoil on the wing root with a26" chord and a naca 9 on the tip with a 10 inch chord, where I line up that 10 inches on the outside of the foam will designate sweep. Is ther a program that helps you set that up?
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