NACA 4421 (naca4421-il) Xfoil prediction polar at RE=1,000,000 Ncrit=9
| Details | Polar file |
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Airfoil: NACA 4421 (naca4421-il) Reynolds number: 1,000,000 Max Cl/Cd: 103.06 at α=5.75° Description: Mach=0 Ncrit=9 Source: Xfoil prediction Download polar: xf-naca4421-il-1000000.txt Download as CSV file: xf-naca4421-il-1000000.csv |
XFOIL Version 6.96
Calculated polar for: NACA 4421
1 1 Reynolds number fixed Mach number fixed
xtrf = 1.000 (top) 1.000 (bottom)
Mach = 0.000 Re = 1.000 e 6 Ncrit = 9.000
alpha CL CD CDp CM Top_Xtr Bot_Xtr
------ -------- --------- --------- -------- -------- --------
-19.750 -0.9805 0.08344 0.07962 -0.0909 1.0000 0.0436
-19.500 -0.9971 0.07828 0.07438 -0.0932 1.0000 0.0439
-19.250 -1.0148 0.07317 0.06918 -0.0954 1.0000 0.0443
-19.000 -1.0341 0.06805 0.06398 -0.0973 1.0000 0.0446
-18.750 -1.0541 0.06308 0.05892 -0.0990 1.0000 0.0449
-18.500 -1.0749 0.05829 0.05403 -0.1003 1.0000 0.0451
-18.250 -1.0967 0.05368 0.04932 -0.1013 1.0000 0.0453
-18.000 -1.1167 0.04961 0.04515 -0.1015 1.0000 0.0455
-17.500 -1.1664 0.04160 0.03695 -0.1005 1.0000 0.0459
-17.250 -1.1777 0.03744 0.03270 -0.1025 0.9992 0.0464
-17.000 -1.1718 0.03398 0.02916 -0.1059 0.9976 0.0470
-16.750 -1.1600 0.03131 0.02642 -0.1088 0.9958 0.0477
-16.500 -1.1439 0.02916 0.02421 -0.1113 0.9943 0.0484
-16.250 -1.1242 0.02741 0.02239 -0.1137 0.9930 0.0492
-16.000 -1.1017 0.02595 0.02087 -0.1159 0.9920 0.0499
-15.750 -1.0848 0.02453 0.01939 -0.1169 0.9889 0.0506
-15.500 -1.0687 0.02290 0.01772 -0.1183 0.9858 0.0517
-15.250 -1.0464 0.02168 0.01648 -0.1198 0.9837 0.0527
-15.000 -1.0206 0.02070 0.01546 -0.1213 0.9821 0.0539
-14.750 -0.9936 0.01993 0.01463 -0.1227 0.9803 0.0550
-14.500 -0.9753 0.01904 0.01371 -0.1225 0.9761 0.0563
-14.250 -0.9592 0.01823 0.01289 -0.1217 0.9704 0.0576
-14.000 -0.9396 0.01757 0.01220 -0.1211 0.9659 0.0590
-13.750 -0.9234 0.01708 0.01166 -0.1195 0.9596 0.0603
-13.500 -0.9093 0.01649 0.01105 -0.1176 0.9528 0.0618
-13.250 -0.8947 0.01598 0.01052 -0.1156 0.9466 0.0635
-13.000 -0.8789 0.01559 0.01009 -0.1137 0.9393 0.0652
-12.750 -0.8589 0.01516 0.00962 -0.1125 0.9333 0.0672
-12.500 -0.8398 0.01473 0.00919 -0.1112 0.9265 0.0697
-12.250 -0.8181 0.01439 0.00882 -0.1102 0.9199 0.0722
-12.000 -0.7963 0.01399 0.00841 -0.1093 0.9137 0.0756
-11.500 -0.7505 0.01336 0.00778 -0.1077 0.9005 0.0828
-11.250 -0.7255 0.01312 0.00750 -0.1071 0.8944 0.0862
-11.000 -0.7016 0.01283 0.00724 -0.1065 0.8874 0.0899
-10.750 -0.6757 0.01265 0.00700 -0.1061 0.8807 0.0929
-10.500 -0.6509 0.01239 0.00674 -0.1056 0.8740 0.0961
-10.250 -0.6252 0.01219 0.00653 -0.1051 0.8668 0.0991
-10.000 -0.5983 0.01206 0.00633 -0.1048 0.8598 0.1014
-9.750 -0.5733 0.01180 0.00608 -0.1044 0.8529 0.1047
-9.500 -0.5471 0.01162 0.00589 -0.1040 0.8453 0.1074
-9.250 -0.5201 0.01151 0.00571 -0.1037 0.8378 0.1096
-9.000 -0.4941 0.01130 0.00549 -0.1033 0.8308 0.1122
-8.750 -0.4680 0.01111 0.00530 -0.1030 0.8229 0.1149
-8.500 -0.4412 0.01099 0.00513 -0.1027 0.8154 0.1175
-8.250 -0.4137 0.01088 0.00499 -0.1025 0.8082 0.1194
-8.000 -0.3878 0.01069 0.00477 -0.1020 0.7999 0.1225
-7.750 -0.3613 0.01054 0.00461 -0.1017 0.7922 0.1254
-7.500 -0.3341 0.01041 0.00447 -0.1015 0.7843 0.1280
-7.250 -0.3069 0.01035 0.00434 -0.1012 0.7759 0.1301
-7.000 -0.2805 0.01015 0.00415 -0.1009 0.7682 0.1338
-6.750 -0.2539 0.01003 0.00401 -0.1005 0.7590 0.1371
-6.500 -0.2268 0.00994 0.00388 -0.1003 0.7505 0.1401
-6.250 -0.1998 0.00982 0.00374 -0.1000 0.7416 0.1437
-6.000 -0.1737 0.00971 0.00361 -0.0995 0.7324 0.1483
-5.750 -0.1461 0.00960 0.00350 -0.0994 0.7238 0.1524
-5.500 -0.1201 0.00950 0.00337 -0.0989 0.7135 0.1582
-5.250 -0.0931 0.00939 0.00327 -0.0986 0.7042 0.1650
-5.000 -0.0672 0.00928 0.00316 -0.0982 0.6938 0.1737
-4.750 -0.0404 0.00918 0.00307 -0.0979 0.6846 0.1831
-4.500 -0.0140 0.00910 0.00299 -0.0975 0.6744 0.1935
-4.250 0.0126 0.00902 0.00293 -0.0971 0.6650 0.2051
-4.000 0.0393 0.00897 0.00288 -0.0968 0.6545 0.2153
-3.750 0.0660 0.00895 0.00285 -0.0964 0.6446 0.2249
-3.500 0.0928 0.00891 0.00280 -0.0961 0.6342 0.2335
-3.250 0.1195 0.00891 0.00278 -0.0957 0.6247 0.2412
-3.000 0.1470 0.00891 0.00276 -0.0955 0.6154 0.2465
-2.750 0.1729 0.00890 0.00272 -0.0950 0.6059 0.2544
-2.500 0.2005 0.00888 0.00270 -0.0949 0.5975 0.2607
-2.250 0.2268 0.00894 0.00270 -0.0944 0.5878 0.2649
-2.000 0.2538 0.00889 0.00267 -0.0942 0.5799 0.2736
-1.750 0.2804 0.00889 0.00266 -0.0938 0.5715 0.2808
-1.500 0.3068 0.00892 0.00267 -0.0934 0.5636 0.2874
-1.250 0.3340 0.00888 0.00266 -0.0932 0.5568 0.2975
-0.750 0.3864 0.00889 0.00268 -0.0924 0.5415 0.3209
-0.500 0.4130 0.00886 0.00269 -0.0921 0.5339 0.3374
-0.250 0.4378 0.00888 0.00273 -0.0914 0.5253 0.3575
0.000 0.4646 0.00884 0.00276 -0.0912 0.5191 0.3802
0.250 0.4910 0.00882 0.00279 -0.0908 0.5129 0.4026
0.500 0.5162 0.00884 0.00284 -0.0903 0.5063 0.4250
0.750 0.5423 0.00882 0.00289 -0.0899 0.5008 0.4509
1.000 0.5688 0.00878 0.00294 -0.0896 0.4955 0.4814
1.250 0.5943 0.00878 0.00301 -0.0891 0.4898 0.5122
1.500 0.6183 0.00880 0.00309 -0.0883 0.4834 0.5460
1.750 0.6448 0.00874 0.00317 -0.0880 0.4792 0.5859
2.000 0.6706 0.00871 0.00325 -0.0876 0.4742 0.6222
2.250 0.6953 0.00874 0.00335 -0.0869 0.4689 0.6526
2.500 0.7177 0.00882 0.00346 -0.0858 0.4629 0.6807
2.750 0.7433 0.00881 0.00354 -0.0853 0.4591 0.7066
3.000 0.7678 0.00884 0.00363 -0.0846 0.4544 0.7311
3.250 0.7913 0.00890 0.00375 -0.0836 0.4495 0.7562
3.750 0.8394 0.00903 0.00404 -0.0821 0.4399 0.8127
4.000 0.8639 0.00907 0.00419 -0.0813 0.4353 0.8466
4.250 0.8864 0.00916 0.00436 -0.0801 0.4305 0.8831
4.500 0.9060 0.00932 0.00457 -0.0783 0.4252 0.9190
4.750 0.9286 0.00944 0.00474 -0.0771 0.4208 0.9478
5.000 0.9564 0.00958 0.00490 -0.0771 0.4152 0.9703
5.250 0.9882 0.00983 0.00510 -0.0781 0.4080 0.9863
5.750 1.0543 0.01023 0.00545 -0.0808 0.3938 1.0000
6.000 1.0690 0.01047 0.00563 -0.0784 0.3863 1.0000
6.250 1.0909 0.01061 0.00577 -0.0774 0.3807 1.0000
6.500 1.1119 0.01082 0.00595 -0.0763 0.3741 1.0000
6.750 1.1308 0.01112 0.00621 -0.0748 0.3671 1.0000
7.000 1.1541 0.01131 0.00640 -0.0741 0.3614 1.0000
7.250 1.1747 0.01160 0.00666 -0.0731 0.3538 1.0000
7.500 1.1954 0.01191 0.00693 -0.0720 0.3465 1.0000
7.750 1.2165 0.01221 0.00721 -0.0711 0.3388 1.0000
8.000 1.2353 0.01261 0.00757 -0.0698 0.3308 1.0000
8.250 1.2565 0.01293 0.00787 -0.0689 0.3227 1.0000
8.500 1.2740 0.01341 0.00830 -0.0675 0.3137 1.0000
8.750 1.2938 0.01381 0.00868 -0.0665 0.3050 1.0000
9.000 1.3111 0.01433 0.00916 -0.0652 0.2964 1.0000
9.250 1.3298 0.01480 0.00961 -0.0641 0.2887 1.0000
9.500 1.3457 0.01541 0.01017 -0.0626 0.2806 1.0000
9.750 1.3645 0.01590 0.01065 -0.0616 0.2733 1.0000
10.250 1.3966 0.01717 0.01187 -0.0590 0.2579 1.0000
10.500 1.4097 0.01798 0.01264 -0.0574 0.2498 1.0000
10.750 1.4272 0.01858 0.01324 -0.0564 0.2437 1.0000
11.000 1.4413 0.01938 0.01402 -0.0550 0.2365 1.0000
11.250 1.4558 0.02017 0.01480 -0.0538 0.2296 1.0000
11.500 1.4689 0.02106 0.01566 -0.0524 0.2216 1.0000
11.750 1.4814 0.02202 0.01660 -0.0511 0.2140 1.0000
12.000 1.4922 0.02310 0.01766 -0.0496 0.2056 1.0000
12.250 1.5040 0.02416 0.01871 -0.0484 0.1980 1.0000
12.500 1.5118 0.02551 0.02002 -0.0468 0.1890 1.0000
12.750 1.5206 0.02683 0.02131 -0.0454 0.1798 1.0000
13.000 1.5275 0.02833 0.02279 -0.0440 0.1710 1.0000
13.250 1.5327 0.02999 0.02442 -0.0425 0.1625 1.0000
13.500 1.5384 0.03169 0.02610 -0.0412 0.1547 1.0000
13.750 1.5433 0.03347 0.02787 -0.0399 0.1478 1.0000
14.000 1.5464 0.03544 0.02983 -0.0386 0.1412 1.0000
14.250 1.5516 0.03732 0.03172 -0.0376 0.1358 1.0000
14.500 1.5536 0.03952 0.03392 -0.0365 0.1307 1.0000
14.750 1.5590 0.04144 0.03586 -0.0356 0.1267 1.0000
15.000 1.5621 0.04363 0.03807 -0.0348 0.1231 1.0000
15.250 1.5623 0.04612 0.04058 -0.0339 0.1194 1.0000
15.500 1.5683 0.04810 0.04260 -0.0333 0.1169 1.0000
15.750 1.5708 0.05048 0.04501 -0.0328 0.1143 1.0000
16.000 1.5711 0.05307 0.04764 -0.0322 0.1116 1.0000
16.250 1.5711 0.05573 0.05033 -0.0316 0.1091 1.0000
16.500 1.5746 0.05809 0.05275 -0.0313 0.1073 1.0000
16.750 1.5771 0.06054 0.05524 -0.0310 0.1053 1.0000
17.000 1.5758 0.06348 0.05821 -0.0307 0.1032 1.0000
17.250 1.5720 0.06666 0.06144 -0.0304 0.1011 1.0000
17.500 1.5738 0.06925 0.06409 -0.0303 0.0995 1.0000
17.750 1.5750 0.07197 0.06687 -0.0302 0.0978 1.0000
18.000 1.5755 0.07476 0.06970 -0.0302 0.0960 1.0000
18.250 1.5715 0.07812 0.07309 -0.0302 0.0941 1.0000
18.500 1.5665 0.08156 0.07657 -0.0303 0.0921 1.0000
18.750 1.5677 0.08434 0.07942 -0.0304 0.0907 1.0000
19.000 1.5693 0.08705 0.08218 -0.0306 0.0889 1.0000
19.250 1.5657 0.09046 0.08564 -0.0310 0.0872 1.0000
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