NACA 4421 (naca4421-il) Xfoil prediction polar at RE=200,000 Ncrit=5
| Details | Polar file |
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Airfoil: NACA 4421 (naca4421-il) Reynolds number: 200,000 Max Cl/Cd: 58.43 at α=6.5° Description: Mach=0 Ncrit=5 Source: Xfoil prediction Download polar: xf-naca4421-il-200000-n5.txt Download as CSV file: xf-naca4421-il-200000-n5.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 = 0.200 e 6 Ncrit = 5.000
alpha CL CD CDp CM Top_Xtr Bot_Xtr
------ -------- --------- --------- -------- -------- --------
-18.250 -0.7301 0.10127 0.09565 -0.0816 1.0000 0.0596
-18.000 -0.7666 0.09250 0.08666 -0.0860 1.0000 0.0605
-17.750 -0.7747 0.08861 0.08275 -0.0874 1.0000 0.0612
-17.500 -0.7839 0.08467 0.07879 -0.0888 1.0000 0.0619
-17.250 -0.7979 0.08009 0.07416 -0.0904 1.0000 0.0627
-17.000 -0.8146 0.07533 0.06932 -0.0921 1.0000 0.0635
-16.750 -0.8326 0.07065 0.06455 -0.0936 1.0000 0.0642
-16.500 -0.8509 0.06620 0.06000 -0.0947 1.0000 0.0650
-16.250 -0.8689 0.06210 0.05578 -0.0954 1.0000 0.0658
-16.000 -0.8853 0.05847 0.05208 -0.0956 1.0000 0.0665
-15.750 -0.9011 0.05521 0.04879 -0.0954 1.0000 0.0671
-15.500 -0.9181 0.05206 0.04560 -0.0948 1.0000 0.0677
-15.250 -0.9356 0.04915 0.04263 -0.0938 1.0000 0.0683
-15.000 -0.9332 0.04588 0.03926 -0.0964 0.9975 0.0695
-14.750 -0.9238 0.04286 0.03612 -0.0996 0.9942 0.0710
-14.500 -0.9120 0.04023 0.03336 -0.1025 0.9912 0.0725
-14.250 -0.9022 0.03783 0.03092 -0.1046 0.9863 0.0737
-14.000 -0.8879 0.03578 0.02879 -0.1069 0.9822 0.0754
-13.750 -0.8694 0.03400 0.02690 -0.1092 0.9791 0.0776
-13.500 -0.8577 0.03249 0.02532 -0.1097 0.9728 0.0794
-13.250 -0.8401 0.03111 0.02389 -0.1109 0.9681 0.0814
-13.000 -0.8170 0.02990 0.02259 -0.1126 0.9652 0.0841
-12.750 -0.8042 0.02892 0.02153 -0.1119 0.9580 0.0863
-12.500 -0.7843 0.02795 0.02054 -0.1123 0.9530 0.0886
-12.250 -0.7598 0.02707 0.01956 -0.1132 0.9497 0.0916
-12.000 -0.7492 0.02641 0.01884 -0.1111 0.9411 0.0939
-11.750 -0.7289 0.02569 0.01809 -0.1108 0.9358 0.0966
-11.500 -0.7017 0.02498 0.01729 -0.1115 0.9325 0.1001
-11.250 -0.6899 0.02448 0.01675 -0.1092 0.9234 0.1025
-11.000 -0.6663 0.02387 0.01611 -0.1090 0.9183 0.1055
-10.750 -0.6377 0.02327 0.01541 -0.1096 0.9147 0.1091
-10.500 -0.6239 0.02285 0.01497 -0.1074 0.9054 0.1116
-10.250 -0.5994 0.02232 0.01441 -0.1072 0.8998 0.1148
-10.000 -0.5701 0.02179 0.01379 -0.1078 0.8960 0.1185
-9.750 -0.5542 0.02143 0.01341 -0.1058 0.8867 0.1211
-9.500 -0.5294 0.02096 0.01292 -0.1055 0.8809 0.1243
-9.250 -0.4996 0.02048 0.01237 -0.1060 0.8767 0.1281
-9.000 -0.4815 0.02018 0.01203 -0.1043 0.8674 0.1310
-8.750 -0.4562 0.01973 0.01158 -0.1040 0.8612 0.1342
-8.500 -0.4280 0.01933 0.01112 -0.1041 0.8558 0.1380
-8.250 -0.4066 0.01908 0.01079 -0.1029 0.8469 0.1413
-8.000 -0.3806 0.01863 0.01037 -0.1027 0.8403 0.1448
-7.750 -0.3547 0.01830 0.01000 -0.1024 0.8334 0.1488
-7.500 -0.3307 0.01804 0.00967 -0.1016 0.8249 0.1528
-7.250 -0.3036 0.01766 0.00929 -0.1015 0.8181 0.1570
-7.000 -0.2797 0.01740 0.00902 -0.1008 0.8098 0.1618
-6.750 -0.2538 0.01714 0.00870 -0.1004 0.8015 0.1671
-6.500 -0.2267 0.01682 0.00838 -0.1002 0.7944 0.1724
-6.250 -0.2031 0.01662 0.00816 -0.0994 0.7849 0.1779
-6.000 -0.1762 0.01636 0.00787 -0.0991 0.7769 0.1834
-5.750 -0.1513 0.01615 0.00767 -0.0985 0.7684 0.1896
-5.500 -0.1254 0.01596 0.00744 -0.0980 0.7593 0.1962
-5.250 -0.0989 0.01577 0.00724 -0.0977 0.7510 0.2038
-5.000 -0.0738 0.01563 0.00707 -0.0971 0.7411 0.2115
-4.750 -0.0465 0.01547 0.00687 -0.0969 0.7329 0.2198
-4.500 -0.0215 0.01537 0.00674 -0.0962 0.7234 0.2279
-4.250 0.0047 0.01522 0.00658 -0.0958 0.7142 0.2365
-4.000 0.0307 0.01515 0.00644 -0.0953 0.7047 0.2452
-3.750 0.0561 0.01500 0.00630 -0.0948 0.6951 0.2534
-3.500 0.0823 0.01492 0.00618 -0.0943 0.6863 0.2619
-3.250 0.1076 0.01482 0.00607 -0.0938 0.6769 0.2697
-3.000 0.1339 0.01474 0.00595 -0.0934 0.6683 0.2789
-2.750 0.1589 0.01467 0.00588 -0.0927 0.6586 0.2876
-2.500 0.1848 0.01459 0.00578 -0.0922 0.6497 0.2975
-2.250 0.2101 0.01455 0.00573 -0.0917 0.6409 0.3072
-2.000 0.2354 0.01449 0.00568 -0.0911 0.6325 0.3184
-1.750 0.2613 0.01445 0.00563 -0.0906 0.6247 0.3306
-1.500 0.2861 0.01441 0.00563 -0.0900 0.6160 0.3450
-1.250 0.3116 0.01438 0.00559 -0.0895 0.6081 0.3608
-1.000 0.3364 0.01434 0.00561 -0.0889 0.6002 0.3786
-0.750 0.3614 0.01431 0.00563 -0.0883 0.5927 0.3990
-0.250 0.4114 0.01427 0.00570 -0.0871 0.5788 0.4458
0.000 0.4359 0.01424 0.00575 -0.0864 0.5715 0.4726
0.500 0.4851 0.01421 0.00589 -0.0850 0.5587 0.5312
0.750 0.5095 0.01422 0.00599 -0.0843 0.5521 0.5611
1.000 0.5341 0.01425 0.00607 -0.0835 0.5460 0.5924
1.250 0.5580 0.01427 0.00621 -0.0827 0.5396 0.6243
1.500 0.5817 0.01432 0.00634 -0.0818 0.5327 0.6544
1.750 0.6057 0.01439 0.00644 -0.0809 0.5260 0.6832
2.000 0.6291 0.01445 0.00658 -0.0799 0.5198 0.7122
2.250 0.6520 0.01452 0.00675 -0.0787 0.5132 0.7417
2.500 0.6751 0.01461 0.00690 -0.0776 0.5074 0.7715
2.750 0.6989 0.01474 0.00706 -0.0766 0.5022 0.8012
3.000 0.7217 0.01485 0.00728 -0.0754 0.4963 0.8315
3.250 0.7459 0.01500 0.00749 -0.0744 0.4905 0.8617
3.500 0.7730 0.01521 0.00769 -0.0741 0.4851 0.8924
3.750 0.8027 0.01543 0.00792 -0.0744 0.4797 0.9217
4.000 0.8364 0.01566 0.00819 -0.0756 0.4736 0.9479
4.250 0.8728 0.01593 0.00843 -0.0775 0.4675 0.9698
4.500 0.9115 0.01624 0.00866 -0.0800 0.4621 0.9863
4.750 0.9524 0.01652 0.00898 -0.0830 0.4557 0.9996
5.000 0.9631 0.01666 0.00909 -0.0799 0.4504 1.0000
5.250 0.9744 0.01682 0.00919 -0.0768 0.4454 1.0000
5.500 0.9885 0.01702 0.00936 -0.0743 0.4406 1.0000
5.750 1.0029 0.01722 0.00959 -0.0720 0.4351 1.0000
6.000 1.0187 0.01747 0.00981 -0.0699 0.4295 1.0000
6.250 1.0364 0.01775 0.01002 -0.0682 0.4243 1.0000
6.500 1.0535 0.01803 0.01034 -0.0665 0.4188 1.0000
6.750 1.0706 0.01834 0.01066 -0.0648 0.4128 1.0000
7.000 1.0879 0.01868 0.01096 -0.0632 0.4070 1.0000
7.250 1.1049 0.01904 0.01131 -0.0616 0.4008 1.0000
7.500 1.1201 0.01944 0.01173 -0.0597 0.3930 1.0000
7.750 1.1341 0.01990 0.01211 -0.0578 0.3850 1.0000
8.000 1.1479 0.02038 0.01264 -0.0559 0.3757 1.0000
8.250 1.1612 0.02093 0.01313 -0.0539 0.3676 1.0000
8.500 1.1766 0.02146 0.01370 -0.0524 0.3597 1.0000
8.750 1.1906 0.02206 0.01428 -0.0507 0.3524 1.0000
9.000 1.2052 0.02268 0.01491 -0.0492 0.3453 1.0000
9.250 1.2188 0.02337 0.01560 -0.0476 0.3374 1.0000
9.500 1.2314 0.02412 0.01633 -0.0460 0.3304 1.0000
9.750 1.2448 0.02488 0.01713 -0.0445 0.3225 1.0000
10.000 1.2556 0.02578 0.01799 -0.0428 0.3152 1.0000
10.250 1.2683 0.02664 0.01890 -0.0415 0.3076 1.0000
10.500 1.2782 0.02767 0.01990 -0.0399 0.3002 1.0000
10.750 1.2891 0.02869 0.02094 -0.0385 0.2930 1.0000
11.000 1.2982 0.02984 0.02209 -0.0370 0.2854 1.0000
11.250 1.3071 0.03105 0.02330 -0.0355 0.2787 1.0000
11.500 1.3163 0.03229 0.02457 -0.0342 0.2716 1.0000
11.750 1.3225 0.03375 0.02600 -0.0328 0.2651 1.0000
12.000 1.3319 0.03509 0.02740 -0.0317 0.2582 1.0000
12.250 1.3376 0.03671 0.02902 -0.0304 0.2513 1.0000
12.500 1.3448 0.03828 0.03061 -0.0293 0.2448 1.0000
12.750 1.3505 0.04001 0.03238 -0.0283 0.2379 1.0000
13.000 1.3547 0.04190 0.03427 -0.0272 0.2318 1.0000
13.250 1.3609 0.04371 0.03614 -0.0264 0.2248 1.0000
13.500 1.3624 0.04595 0.03837 -0.0254 0.2184 1.0000
13.750 1.3674 0.04796 0.04045 -0.0248 0.2115 1.0000
14.000 1.3683 0.05038 0.04287 -0.0240 0.2049 1.0000
14.250 1.3712 0.05269 0.04523 -0.0235 0.1984 1.0000
14.500 1.3709 0.05534 0.04791 -0.0229 0.1918 1.0000
14.750 1.3719 0.05794 0.05054 -0.0225 0.1853 1.0000
15.000 1.3699 0.06088 0.05350 -0.0222 0.1786 1.0000
15.250 1.3686 0.06381 0.05645 -0.0219 0.1721 1.0000
15.500 1.3653 0.06701 0.05967 -0.0218 0.1656 1.0000
15.750 1.3632 0.07013 0.06282 -0.0217 0.1594 1.0000
16.000 1.3589 0.07355 0.06625 -0.0217 0.1535 1.0000
16.250 1.3567 0.07674 0.06947 -0.0218 0.1481 1.0000
16.500 1.3538 0.08007 0.07283 -0.0220 0.1431 1.0000
16.750 1.3510 0.08339 0.07617 -0.0222 0.1392 1.0000
17.000 1.3516 0.08636 0.07920 -0.0225 0.1353 1.0000
17.250 1.3497 0.08963 0.08250 -0.0229 0.1319 1.0000
17.500 1.3485 0.09279 0.08567 -0.0233 0.1288 1.0000
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