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HT23 (ht23-il)

HT23 - Drela HT23 airfoil


Airfoil ht23-il
Details Dat file Parser  
(ht23-il) HT23
Drela HT23 airfoil
Max thickness 6.5% at 20.8% chord.
Max camber 1.1% at 22.6% chord
Source UIUC Airfoil Coordinates Database
Source dat file
The dat file is in Selig format
HT23
     1.000013    0.001041
     0.993330    0.001400
     0.981297    0.002057
     0.966759    0.002850
     0.950143    0.003764
     0.932194    0.004762
     0.913554    0.005798
     0.894602    0.006866
     0.875511    0.007946
     0.856358    0.009031
     0.837176    0.010116
     0.817981    0.011207
     0.798779    0.012298
     0.779575    0.013395
     0.760387    0.014490
     0.741199    0.015592
     0.722050    0.016699
     0.702899    0.017805
     0.683777    0.018923
     0.664663    0.020042
     0.645549    0.021169
     0.626465    0.022303
     0.607368    0.023452
     0.588297    0.024613
     0.569229    0.025789
     0.550164    0.026978
     0.531123    0.028173
     0.512073    0.029372
     0.493081    0.030568
     0.474020    0.031761
     0.454927    0.032946
     0.435930    0.034112
     0.416976    0.035254
     0.398196    0.036360
     0.379553    0.037425
     0.364932    0.038231
     0.355753    0.038721
     0.342226    0.039418
     0.322550    0.040368
     0.302367    0.041245
     0.282830    0.041979
     0.264035    0.042557
     0.245551    0.042980
     0.227208    0.043233
     0.209044    0.043294
     0.191076    0.043139
     0.173411    0.042749
     0.156090    0.042105
     0.139358    0.041202
     0.123371    0.040040
     0.108312    0.038633
     0.094349    0.037010
     0.081733    0.035230
     0.070571    0.033362
     0.060866    0.031471
     0.052509    0.029606
     0.045368    0.027807
     0.039247    0.026086
     0.033954    0.024440
     0.029318    0.022854
     0.025198    0.021307
     0.021478    0.019785
     0.018002    0.018219
     0.014628    0.016518
     0.011295    0.014589
     0.008073    0.012378
     0.005183    0.009914
     0.002782    0.007204
     0.000976    0.004168
     0.000072    0.001086
     0.000000    0.000000
     0.000130   -0.001368
     0.000766   -0.003131
     0.001556   -0.004268
     0.002293   -0.005026
     0.003307   -0.005829
     0.004762   -0.006736
     0.006592   -0.007656
     0.008703   -0.008544
     0.011042   -0.009388
     0.013681   -0.010216
     0.016760   -0.011059
     0.020407   -0.011933
     0.024703   -0.012834
     0.029733   -0.013750
     0.035539   -0.014668
     0.042186   -0.015578
     0.049776   -0.016471
     0.058457   -0.017344
     0.068374   -0.018185
     0.079706   -0.018982
     0.092510   -0.019711
     0.106739   -0.020351
     0.122111   -0.020878
     0.138375   -0.021282
     0.155243   -0.021566
     0.172587   -0.021738
     0.190252   -0.021811
     0.208211   -0.021795
     0.226364   -0.021704
     0.244744   -0.021547
     0.263506   -0.021339
     0.282800   -0.021080
     0.302831   -0.020767
     0.323757   -0.020398
     0.346109   -0.019962
     0.357456   -0.019726
     0.371368   -0.019424
     0.387020   -0.019070
     0.404566   -0.018654
     0.422199   -0.018219
     0.440148   -0.017761
     0.458343   -0.017282
     0.476758   -0.016786
     0.495345   -0.016274
     0.513975   -0.015755
     0.532605   -0.015228
     0.551227   -0.014695
     0.569832   -0.014156
     0.588454   -0.013610
     0.607140   -0.013053
     0.625909   -0.012488
     0.644822   -0.011912
     0.663939   -0.011329
     0.683165   -0.010738
     0.702394   -0.010138
     0.721621   -0.009536
     0.740849   -0.008939
     0.760077   -0.008337
     0.779305   -0.007742
     0.798532   -0.007145
     0.817756   -0.006551
     0.836972   -0.005952
     0.856175   -0.005360
     0.875350   -0.004764
     0.894463   -0.004176
     0.913435   -0.003596
     0.932096   -0.003031
     0.950064   -0.002497
     0.966698   -0.002009
     0.981250   -0.001579
     0.993298   -0.001235
     0.999987   -0.001041
Dat file parser warnings
  • Line 2 - X value too large but included: 1.000013 0.001041
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Polars for HT23 (ht23-il)

PlotAirfoilReynolds #NcritMax Cl/CdDescriptionSource 
   ht23-il50,000924.4 at α=5.25°Mach=0 Ncrit=9Xfoil predictionDetails
   ht23-il50,000529 at α=5.75°Mach=0 Ncrit=5Xfoil predictionDetails
   ht23-il100,000937.2 at α=5.5°Mach=0 Ncrit=9Xfoil predictionDetails
   ht23-il100,000539.8 at α=5.75°Mach=0 Ncrit=5Xfoil predictionDetails
   ht23-il200,000950.9 at α=5.5°Mach=0 Ncrit=9Xfoil predictionDetails
   ht23-il200,000550.5 at α=5.5°Mach=0 Ncrit=5Xfoil predictionDetails
   ht23-il500,000967.7 at α=5.5°Mach=0 Ncrit=9Xfoil predictionDetails
   ht23-il500,000565.8 at α=6.5°Mach=0 Ncrit=5Xfoil predictionDetails
   ht23-il1,000,000979.8 at α=5.5°Mach=0 Ncrit=9Xfoil predictionDetails
   ht23-il1,000,000579.9 at α=7.25°Mach=0 Ncrit=5Xfoil predictionDetails
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