Why Is NACA 64A416/4416 Mod Airfoil Data Unavailable?

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The NACA 64A416/4416 mod airfoil data is not readily available despite its listing by various manufacturers, which has led to confusion among users. The airfoil is associated with the DeHavilland DHC-2 Beaver, and while some online resources can generate airfoil coordinates, they may not always provide images or comprehensive data. Users have found success using specific websites like aeromech to obtain representations and data for these airfoils. There is also interest in coding this data for software like AutoCAD and Rhino to facilitate drawing the airfoil. Overall, while the data is scarce, there are methods to generate it and resources available for further assistance.
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Hello,

I am looking for coordinates data for the airfoil NACA 64A416/4416 mod. This airfoil was used on the DeHavilland DHC-2 Beaver. While the airfoil is listed on various manufactures lists no data, or image, of the airfoil is available. Can you tell me whether there is a reason this data is not given, or am I misunderstanding something. And, is there an alternative airfoil which can be used and where the data and an image is available. The information is required for a large scale model of the DHC_2 Beaver up to 140 inch wing span.

Regards,
Spud
 
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Hi Baluncore,

I visited aeromech and found that by entering either 4416 (4 Series) or 64a416 (6 series) I finally get an image representation of an airfoil, plus its data. The other databases on the web don't produce either for the designations above. I don't know why but its a pity that they dont. All I need now is a method of coding the data for AutoCAD and Rhino so that the airfoil is automatically drawn. Many thanks for your help, it is very much appreciated.

Regards,
Spud
 
Google; 'autocad naca profiles'
There appear to be several available.
 

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