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Old 07-17-2012, 02:58 AM
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Crumpp Crumpp is offline
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Quote:
Lenght of aerodynamical mean chord (MAC): 78.54"

Quote:
The rest is simple math:
Aft limit behind datum line at MAC: 26.7036" - 18.65" = 8.05"
Datum line behind leading edge at wing root: 31.656" - 8.05" = 23.6024"
NACA CoG behind datum line: 31.4" - 23.6024" = 7.7976"
NACA CoG location at MAC behind leading edge: 18.65" + 7.7976" = 26.4476"
NACA CoG % at MAC: 26.4476" / 78.54 * 100 = 33.6741%

Attached Images
File Type: jpg NACA MAC 85.jpg (298.7 KB, 8 views)
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