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How does APR GTC-300 Wing Rank up?

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Old 10-07-2009, 06:45 PM
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I just ordered my new wing from Kognition design, they had a group buy on zilvia but just finished, but I think you could still email him and see if the discount still there.

http://www.kognitiondesign.com/

68" CFD result, at same angle, compare with GTC300, the Kognition wing has 5% less downforce but almost 30% less drag, which is awesome.

oh, and it's dry carbon.
Old 10-07-2009, 08:17 PM
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Originally Posted by owenxguo,Oct 7 2009, 06:45 PM
I just ordered my new wing from Kognition design, they had a group buy on zilvia but just finished, but I think you could still email him and see if the discount still there.

http://www.kognitiondesign.com/

68" CFD result, at same angle, compare with GTC300, the Kognition wing has 5% less downforce but almost 30% less drag, which is awesome.

oh, and it's dry carbon.
Any more details? Website didn't have much info.
Old 10-07-2009, 08:29 PM
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He has more pictures and CFD in that group buy which just expired. Just email him, I am pretty sure he will provide you whatever he has, his name is Mike.
Old 10-27-2009, 05:44 PM
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Just compared CFD again, Kognition actually have more downforce and less drag.

80mph: APR 186.5 lb's downforce 35.8 lb's drag.
Kognition 219.29 lb's downforce 26.67 lb's drag.

100mph: APR 292.5 lb's downforce 56.42 lb's drag.
Kognition 342.63 lb's downforce 41.82 lb's drag.

120mph: APR 421.85 lb's downforce 82.18 lb's drag.
Kognition 493.39 lb's downforce 60.13 lb's drag.

Can't wait get my new wing
Old 10-27-2009, 06:55 PM
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how much is the Kognition wing
Old 10-27-2009, 06:57 PM
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what about voltex vs apr vs kognition ?
Old 10-27-2009, 07:08 PM
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I've got the full size 300. If I could do it again, I'd get the 61in instead of the 67.
Old 10-27-2009, 07:34 PM
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not sure if it is fair to compare the two. Kognition is a 2D wing vs. 3D for GTC300.
Old 10-27-2009, 09:05 PM
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whats the difference between a 2d and 3d wing?
Old 10-27-2009, 09:15 PM
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^^^ variation in aoa


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