Highest LD ratio designs

dijinj · January 17, 2011, 09:43

can someone give the technical name or coordinate files of airfoils having highest LD ratio; above 50

also tell me how to generate a sears hack body's coordinate file

abdul099 · January 19, 2011, 17:03

There are a lot of airfoils with a L/D ratio over 50 - as long as you are just looking on the airfoil itself. Even an old one like the E603 will reach a L/D of more than 100, and to be honest, that's an out-of-date airfoil and can't compete with a modern one.
On a real plain, it depends on the aspect ratio of the wing, the shape of the fusselage, the wing tip...

dijinj · January 19, 2011, 21:23

I am looking for wing profile only not complete aircraft. I only need 2d cross section of airfoils

sail · January 19, 2011, 21:29

http://www.worldofkrauss.com/

click on "Search" and look for high L/D airfoils.

dijinj · January 19, 2011, 22:23

Thanks

Thank you very much

January 17, 2011, 09:43	Highest LD ratio designs	#1
dijinj Member Diji N J Join Date: Jan 2010 Posts: 37 Blog Entries: 1 Rep Power: 16	can someone give the technical name or coordinate files of airfoils having highest LD ratio; above 50 also tell me how to generate a sears hack body's coordinate file

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January 19, 2011, 17:03		#2
abdul099 Senior Member Join Date: Oct 2009 Location: Germany Posts: 636 Rep Power: 21	There are a lot of airfoils with a L/D ratio over 50 - as long as you are just looking on the airfoil itself. Even an old one like the E603 will reach a L/D of more than 100, and to be honest, that's an out-of-date airfoil and can't compete with a modern one. On a real plain, it depends on the aspect ratio of the wing, the shape of the fusselage, the wing tip...

January 19, 2011, 21:23		#3
dijinj Member Diji N J Join Date: Jan 2010 Posts: 37 Blog Entries: 1 Rep Power: 16	I am looking for wing profile only not complete aircraft. I only need 2d cross section of airfoils

January 19, 2011, 21:29		#4
sail Senior Member Vieri Abolaffio Join Date: Jul 2010 Location: Always on the move. Posts: 308 Rep Power: 16	http://www.worldofkrauss.com/ click on "Search" and look for high L/D airfoils.

January 19, 2011, 22:23		#5
dijinj Member Diji N J Join Date: Jan 2010 Posts: 37 Blog Entries: 1 Rep Power: 16	Thanks Thank you very much