AH 81-K-144/17 (ah81k144-il)
AH 81-K-144/17 - Althaus AH 81-K-144/17 airfoil for use with flaps (K)
| Details | Dat file | Parser | |
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(ah81k144-il) AH 81-K-144/17 Althaus AH 81-K-144/17 airfoil for use with flaps (K) Max thickness 14.5% at 40.2% chord. Max camber 4.2% at 46.7% chord Source UIUC Airfoil Coordinates Database Source dat file The dat file is in Selig format |
AH 81-K-144/17 1.00000 0.00000 0.99893 0.00113 0.99572 0.00180 0.99039 0.00287 0.98296 0.00424 0.97347 0.00609 0.96194 0.00840 0.94844 0.01116 0.93301 0.01440 0.91573 0.01812 0.89668 0.02229 0.87592 0.02684 0.85355 0.03177 0.82967 0.03731 0.80438 0.04378 0.77779 0.05133 0.75000 0.05981 0.72114 0.06882 0.69134 0.07789 0.66072 0.08649 0.62941 0.09415 0.59755 0.10055 0.56526 0.10562 0.53270 0.10944 0.50000 0.11212 0.46730 0.11376 0.43474 0.11444 0.40245 0.11421 0.37059 0.11311 0.33928 0.11119 0.30866 0.10846 0.27886 0.10498 0.25000 0.10080 0.22221 0.09598 0.19562 0.09057 0.17033 0.08464 0.14645 0.07824 0.12408 0.07149 0.10332 0.06447 0.08427 0.05728 0.06699 0.05001 0.05156 0.04276 0.03806 0.03563 0.02653 0.02872 0.01704 0.02212 0.00961 0.01601 0.00428 0.01033 0.00107 0.00505 0.00000 0.00037 0.00107 -0.00368 0.00428 -0.00717 0.00961 -0.01044 0.01704 -0.01368 0.02653 -0.01673 0.03806 -0.01948 0.05156 -0.02194 0.06699 -0.02411 0.08427 -0.02596 0.10332 -0.02749 0.12408 -0.02872 0.14645 -0.02968 0.17033 -0.03043 0.19562 -0.03099 0.22221 -0.03136 0.25000 -0.03156 0.27886 -0.03160 0.30866 -0.03150 0.33928 -0.03127 0.37059 -0.03091 0.40245 -0.03042 0.43474 -0.02979 0.46730 -0.02903 0.50000 -0.02813 0.53270 -0.02712 0.56526 -0.02599 0.59755 -0.02474 0.62941 -0.02336 0.66072 -0.02185 0.69134 -0.02018 0.72114 -0.01829 0.75000 -0.01612 0.77779 -0.01365 0.80438 -0.01092 0.82967 -0.00815 0.85355 -0.00563 0.87592 -0.00356 0.89668 -0.00201 0.91573 -0.00091 0.93301 -0.00022 0.94844 0.00012 0.96194 0.00017 0.97347 0.00001 0.98296 -0.00025 0.99039 -0.00059 0.99572 -0.00078 0.99893 -0.00087 1.00000 0.00000 |
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Polars for AH 81-K-144/17 (ah81k144-il)
| Plot | Airfoil | Reynolds # | Ncrit | Max Cl/Cd | Description | Source | |
|---|---|---|---|---|---|---|---|
| ah81k144-il | 50,000 | 9 | 17.8 at α=13.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ah81k144-il | 50,000 | 5 | 16.6 at α=12° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ah81k144-il | 100,000 | 9 | 29.8 at α=10.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ah81k144-il | 100,000 | 5 | 30.5 at α=10° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ah81k144-il | 200,000 | 9 | 62.5 at α=8.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ah81k144-il | 200,000 | 5 | 67.4 at α=7.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ah81k144-il | 500,000 | 9 | 129.4 at α=6.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ah81k144-il | 500,000 | 5 | 117.3 at α=6.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| ah81k144-il | 1,000,000 | 9 | 156.1 at α=6° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| ah81k144-il | 1,000,000 | 5 | 145.3 at α=5.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
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