I know how they works, I know all the names (camber line, cohort line, max camber, leading edge, trailing edge, usw.),
and I know that there are some websites witch draw them for you where you just tipe in your wishes (max camber, thickness, usw.) but I don’t know how I know what I need to tipe in. Sure a thick Profile generate more lift than a thin one but I need exact results!
So if someone know something please tell me :)
(Sorry for my bad english)
Oh ok @CrazyCatZe
@spefyjerbf, ok thanks :)
@CRJ900Pilot, The Probleme with this is that i want to build rubber powers replicas, so if I want to build a spitfire I haf to change the airfoil because the real spitfire is an air to air plane so it has a symmetric airfoil. But my spitfire is more like a glider, so i need a very asymmetric airfoil, but if the airfoil is to flat the plane has not enough lift, if the airfoil is to thick the airfoil crates useless drag..............so..........i need to know how much lift the airfoil creates at what speed......but thanks anyway :)
(Sorry for my very bad english)
A variety of factors go into choosing an airfoil. I’m certainly no expert myself, so try researching airplanes similar to your design. Alternatively, the airfoil tool might have a search function with some parameters that you can mess with.
If replica, use this helpful website. It shows what planes use what airfoil. It’s a little hard to read but hey, it’s there
Is it a real plane or a fictional one?
@spefyjerbf, how do I know witch one to chose?
Ah. I remember choosing an airfoil for an RC craft once. It’s been a while, so I forgot the basic calculations. I do remember the online database of airfoils that I used though. There is some pretty useful information.
Hope this helps.
@spefyjerbf, real life
Is this for a real life application, or SP?