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AG18 (ag18-il)

AG18 - Drela AG18 airfoil


Airfoil ag18-il
Details Dat file Parser  
(ag18-il) AG18
Drela AG18 airfoil
Max thickness 5.9% at 20.7% chord.
Max camber 2.2% at 44.1% chord
Source UIUC Airfoil Coordinates Database
Source dat file
The dat file is in Selig format
AG18
   0.999989  0.000248
   0.994064  0.000860
   0.982076  0.002131
   0.968535  0.003532
   0.954696  0.004948
   0.940813  0.006329
   0.926928  0.007690
   0.913040  0.009036
   0.899151  0.010374
   0.885264  0.011702
   0.871377  0.013021
   0.857495  0.014330
   0.843611  0.015630
   0.829731  0.016915
   0.815852  0.018189
   0.801969  0.019448
   0.788091  0.020693
   0.774211  0.021920
   0.760328  0.023134
   0.746448  0.024334
   0.732564  0.025520
   0.718678  0.026690
   0.704795  0.027847
   0.690913  0.028991
   0.677029  0.030117
   0.663148  0.031226
   0.649270  0.032312
   0.635389  0.033370
   0.621510  0.034403
   0.607635  0.035407
   0.593758  0.036384
   0.579881  0.037330
   0.566010  0.038247
   0.552140  0.039131
   0.538268  0.039982
   0.524400  0.040799
   0.510538  0.041581
   0.496676  0.042326
   0.482813  0.043034
   0.468956  0.043704
   0.455105  0.044334
   0.441254  0.044924
   0.427408  0.045473
   0.413570  0.045978
   0.399733  0.046439
   0.385901  0.046855
   0.372081  0.047222
   0.358264  0.047541
   0.344451  0.047807
   0.330652  0.048020
   0.316864  0.048174
   0.303080  0.048268
   0.289313  0.048299
   0.275562  0.048262
   0.261817  0.048152
   0.248094  0.047964
   0.234392  0.047690
   0.220705  0.047324
   0.207050  0.046856
   0.193425  0.046277
   0.179832  0.045576
   0.166294  0.044741
   0.152801  0.043755
   0.139376  0.042607
   0.126033  0.041277
   0.112780  0.039742
   0.099659  0.037982
   0.086686  0.035963
   0.073924  0.033652
   0.061419  0.031002
   0.049287  0.027970
   0.037710  0.024508
   0.027066  0.020627
   0.018061  0.016545
   0.011378  0.012738
   0.006938  0.009560
   0.004070  0.006989
   0.002191  0.004856
   0.000963  0.003020
   0.000234  0.001383
   0.000000 -0.000121
   0.000363 -0.001587
   0.001440 -0.002971
   0.003184 -0.004211
   0.005657 -0.005429
   0.009202 -0.006726
   0.014499 -0.008171
   0.022372 -0.009715
   0.032732 -0.011128
   0.044631 -0.012229
   0.057285 -0.013011
   0.070296 -0.013521
   0.083518 -0.013812
   0.096883 -0.013935
   0.110346 -0.013930
   0.123882 -0.013829
   0.137471 -0.013648
   0.151109 -0.013400
   0.164779 -0.013092
   0.178481 -0.012727
   0.192208 -0.012313
   0.205954 -0.011856
   0.219719 -0.011360
   0.233501 -0.010831
   0.247295 -0.010273
   0.261106 -0.009689
   0.274928 -0.009085
   0.288763 -0.008468
   0.302614 -0.007839
   0.316477 -0.007203
   0.330353 -0.006565
   0.344245 -0.005927
   0.358149 -0.005291
   0.372067 -0.004661
   0.385997 -0.004040
   0.399940 -0.003424
   0.413885 -0.002820
   0.427821 -0.002231
   0.441744 -0.001654
   0.455658 -0.001093
   0.469565 -0.000554
   0.483462 -0.000037
   0.497351  0.000457
   0.511235  0.000930
   0.525118  0.001376
   0.538994  0.001797
   0.552867  0.002192
   0.566736  0.002561
   0.580603  0.002900
   0.594464  0.003210
   0.608322  0.003493
   0.622175  0.003746
   0.636023  0.003968
   0.649865  0.004161
   0.663706  0.004324
   0.677546  0.004455
   0.691384  0.004555
   0.705222  0.004625
   0.719062  0.004664
   0.732905  0.004671
   0.746746  0.004648
   0.760591  0.004596
   0.774438  0.004510
   0.788285  0.004395
   0.802137  0.004252
   0.815994  0.004077
   0.829851  0.003874
   0.843710  0.003643
   0.857572  0.003382
   0.871434  0.003096
   0.885298  0.002784
   0.899164  0.002445
   0.913029  0.002081
   0.926896  0.001693
   0.940762  0.001283
   0.954631  0.000848
   0.968473  0.000388
   0.982067 -0.000086
   0.994071 -0.000507
   1.000007 -0.000700
Dat file parser warnings
  • Line 161 - X value too large but included: 1.000007 -0.000700
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Polars for AG18 (ag18-il)

PlotAirfoilReynolds #NcritMax Cl/CdDescriptionSource 
   ag18-il50,000935.5 at α=4.25°Mach=0 Ncrit=9Xfoil predictionDetails
   ag18-il50,000536.7 at α=4.25°Mach=0 Ncrit=5Xfoil predictionDetails
   ag18-il100,000950.8 at α=3.75°Mach=0 Ncrit=9Xfoil predictionDetails
   ag18-il100,000548.5 at α=4.25°Mach=0 Ncrit=5Xfoil predictionDetails
   ag18-il200,000965.1 at α=3.25°Mach=0 Ncrit=9Xfoil predictionDetails
   ag18-il200,000560.3 at α=4.75°Mach=0 Ncrit=5Xfoil predictionDetails
   ag18-il500,000981.8 at α=4.25°Mach=0 Ncrit=9Xfoil predictionDetails
   ag18-il500,000577 at α=5°Mach=0 Ncrit=5Xfoil predictionDetails
   ag18-il1,000,000995.4 at α=4.5°Mach=0 Ncrit=9Xfoil predictionDetails
   ag18-il1,000,000590.1 at α=5.5°Mach=0 Ncrit=5Xfoil predictionDetails
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