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Building RC Aircrafts

by Nikkhil Chander
(India )

Hi There ,
So I am building an RC Aircraft for participating in a national level competition held by Boeing every year in my country . Now , the competition takes into account two aspects : gliding time and aerial maneuverability .
Now , seeing the extensive amount of work that you have done , i needed your opinion in how i should select the airfoil for m7y aircraft to suit the above needs and if possible any specific airfoils that I should be looking for.

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Best airfoil response
by: Anonymous

Clark y

Clark Y wing section
by: Simon Chaddock

For model plane purposes there is nothing wrong with the Clark Y section.

Its greatest advantage is that it is flat over 80% of its under surface so a wing can be built accurately on a flat building board.

It also has predictable lift and stall characteristics.
A standard Clarke Y has an 11.7% thickness/chord ratio which is deep enough for adequate strength but thin enough in smaller model sizes to glide reasonably well.

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