Note that there will be a huge difference between any under-cambered vs. Again, I'm comparing airfoils that are basically the same shape within a family. The difference won't be something like one airfoil is "right" and the other makes your plane loop back into the ground on take-off. The difference may be that the 14% version flies and lands a little faster, but is smoother whereas the 16% version may perform aerobatics in a slightly smaller volume. If a designer is agonizing over whether to use a 14% or 16% symmetrical NACA section he can choose either and the plane will still fly well. These behaviors are not different enough to cause any problems in your design unless you do something like change a round leading edge to one that is razor sharp. We learn from experience knowing that the subtleties between one airfoil and another close to the same shape will make a very small difference - one that would only be noticed by an expert pilot.
#Airfoil generator software how to
However, if you enroll at a school of Aerospace then you can probably get help there.Īlmost nobody who designs model airplanes would have a clue how to pick an airfoil for their design based on real airfoil data. If you are purpose-building something competitive that requires the best possible airfoil for the application then I can't help you. That may not always be true, but it's a good rule of thumb. However, the airfoils should scale down comparatively.įor example, if one airfoil is tested to stall sooner than another airfoil, then the stall speeds may be much different when scaled down but both airfoils should still stall in the same order. +++++The airfoils are tested at larger sizes than the average model and things change as size changes. ++++Data on real airfoils won't apply in our realm anyway. By "real" I mean an airfoil that has been designed and tested by the aerospace industry. The most commonly used airfoils for flying model aircraft are:Įach family encompasses a large selection of airfoils but we use very few of them due to habit or not having a clue about how to properly select a real airfoil. 239000010410 layers Substances 0.Airfoils come in several flavors.281000021300 Tianjin Seagull companies 0.000 description 2.238000000926 separation method Methods 0.000 description 4.238000005516 engineering processes Methods 0.000 abstract description 2.238000004088 simulation Methods 0.000 abstract description 3.Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by Nanjing University of Aeronautics and Astronautics filed Critical Nanjing University of Aeronautics and Astronautics Priority to CN2010101464698A priority Critical patent/CN101813070B/en Publication of CN101813070A publication Critical patent/CN101813070A/en Application granted granted Critical Publication of CN101813070B publication Critical patent/CN101813070B/en Status Expired - Fee Related legal-status Critical Current Anticipated expiration legal-status Critical Links Original Assignee Nanjing University of Aeronautics and Astronautics Priority date (The priority date is an assumption and is not a legal conclusion. Nanjing University of Aeronautics and Astronautics Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) ( en Inventor 顾瑞 徐惊雷 张堃元 Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Granted Application number CN201010146469A Other languages Chinese ( zh) Google Patents CN101813070A - Vane airfoil profile of low power wind driven generator
CN101813070A - Vane airfoil profile of low power wind driven generator