AH 81-K-144/17

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Althaus AH 81-K-144/17 airfoil for use with flaps (K). See also Althaus, D., "Niedriggeschwindigkeitsprofile," Friedr. Vieweg & Sohn Verlagsgesellschaft mbH (publisher) Braunschweig/Weisbaden, Germany, 1996, 591 pages. ISBN 3-528-03820-9

Thickness:	14.5%
Camber:	4.2%
Trailing edge angle:	12.9^o
Lower flatness:	61.9%
Leading edge radius:	1.4%

Max C_L:	1.272
Max C_L angle:	13.5
Max L/D:	42.133
Max L/D angle:	7.0
Max L/D C_L:	1.132
Stall angle:	-0.5
Zero-lift angle:	-3.5