NREL's S809 Airfoil
   x/c        y/c
1.000000   0.000000
0.996203   0.000487
0.985190   0.002373
0.967844   0.005960
0.945073   0.011024
0.917488   0.017033
0.885293   0.023458
0.848455   0.030280
0.807470   0.037766
0.763042   0.045974
0.715952   0.054872
0.667064   0.064353
0.617331   0.074214
0.567830   0.084095
0.519832   0.093268
0.474243   0.099392
0.428461   0.101760
0.382612   0.101840
0.337260   0.100070
0.292970   0.096703
0.250247   0.091908
0.209576   0.085851
0.171409   0.078687
0.136174   0.070580
0.104263   0.061697
0.076035   0.052224
0.051823   0.042352
0.031910   0.032299
0.016590   0.022290
0.006026   0.012615
0.000658   0.003723
0.000204   0.001942
0.000000  -0.000020
0.000213  -0.001794
0.001045  -0.003477
0.001208  -0.003724
0.002398  -0.005266
0.009313  -0.011499
0.023230  -0.020399
0.042320  -0.030269
0.065877  -0.040821
0.093426  -0.051923
0.124111  -0.063082
0.157653  -0.073730
0.193738  -0.083567
0.231914  -0.092442
0.271438  -0.099905
0.311968  -0.105281
0.353370  -0.108181
0.395329  -0.108011
0.438273  -0.104552
0.481920  -0.097347
0.527928  -0.086571
0.576211  -0.073979
0.626092  -0.060644
0.676744  -0.047441
0.727211  -0.035100
0.776432  -0.024204
0.823285  -0.015163
0.866630  -0.008204
0.905365  -0.003363
0.938474  -0.000487
0.965086   0.000743
0.984478   0.000775
0.996141   0.000290
