NACA 4421 (naca4421-il) Xfoil prediction polar at RE=500,000 Ncrit=5
| Details | Polar file |
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Airfoil: NACA 4421 (naca4421-il) Reynolds number: 500,000 Max Cl/Cd: 78.11 at α=6° Description: Mach=0 Ncrit=5 Source: Xfoil prediction Download polar: xf-naca4421-il-500000-n5.txt Download as CSV file: xf-naca4421-il-500000-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 = 0.500 e 6 Ncrit = 5.000
alpha CL CD CDp CM Top_Xtr Bot_Xtr
------ -------- --------- --------- -------- -------- --------
-19.000 -0.8741 0.08931 0.08468 -0.0868 1.0000 0.0449
-18.750 -0.8866 0.08468 0.07998 -0.0887 1.0000 0.0453
-18.500 -0.8990 0.08024 0.07546 -0.0904 1.0000 0.0457
-18.250 -0.9175 0.07517 0.07033 -0.0922 1.0000 0.0461
-18.000 -0.9381 0.06999 0.06508 -0.0941 1.0000 0.0464
-17.750 -0.9603 0.06488 0.05988 -0.0956 1.0000 0.0467
-17.500 -0.9828 0.06007 0.05499 -0.0967 1.0000 0.0470
-17.250 -1.0059 0.05546 0.05029 -0.0974 1.0000 0.0474
-17.000 -1.0268 0.05118 0.04592 -0.0979 0.9999 0.0477
-16.750 -1.0285 0.04673 0.04136 -0.1017 0.9981 0.0483
-16.500 -1.0259 0.04289 0.03742 -0.1051 0.9960 0.0490
-16.250 -1.0187 0.03957 0.03399 -0.1083 0.9939 0.0497
-16.000 -1.0078 0.03667 0.03098 -0.1115 0.9922 0.0504
-15.750 -1.0016 0.03370 0.02794 -0.1140 0.9888 0.0511
-15.500 -0.9907 0.03127 0.02544 -0.1163 0.9853 0.0519
-15.250 -0.9752 0.02922 0.02333 -0.1186 0.9825 0.0529
-15.000 -0.9567 0.02752 0.02155 -0.1206 0.9801 0.0539
-14.750 -0.9403 0.02612 0.02008 -0.1216 0.9760 0.0549
-14.500 -0.9260 0.02477 0.01868 -0.1220 0.9704 0.0559
-14.250 -0.9088 0.02351 0.01738 -0.1227 0.9662 0.0571
-14.000 -0.8935 0.02252 0.01634 -0.1224 0.9605 0.0584
-13.750 -0.8783 0.02167 0.01544 -0.1217 0.9539 0.0598
-13.500 -0.8597 0.02084 0.01455 -0.1214 0.9491 0.0613
-13.250 -0.8479 0.02013 0.01382 -0.1197 0.9407 0.0629
-13.000 -0.8308 0.01947 0.01312 -0.1186 0.9343 0.0648
-12.750 -0.8151 0.01893 0.01253 -0.1171 0.9272 0.0666
-12.500 -0.8002 0.01839 0.01196 -0.1153 0.9193 0.0687
-12.250 -0.7826 0.01793 0.01146 -0.1139 0.9129 0.0710
-12.000 -0.7645 0.01751 0.01101 -0.1125 0.9046 0.0734
-11.750 -0.7434 0.01708 0.01055 -0.1116 0.8974 0.0762
-11.500 -0.7224 0.01672 0.01016 -0.1106 0.8898 0.0792
-11.250 -0.7007 0.01635 0.00976 -0.1097 0.8819 0.0824
-11.000 -0.6771 0.01604 0.00940 -0.1090 0.8751 0.0857
-10.750 -0.6549 0.01572 0.00907 -0.1082 0.8672 0.0888
-10.500 -0.6307 0.01544 0.00874 -0.1076 0.8596 0.0919
-10.250 -0.6068 0.01517 0.00843 -0.1070 0.8525 0.0945
-10.000 -0.5829 0.01490 0.00814 -0.1063 0.8444 0.0974
-9.500 -0.5333 0.01443 0.00758 -0.1052 0.8292 0.1029
-9.250 -0.5086 0.01420 0.00731 -0.1047 0.8209 0.1058
-9.000 -0.4831 0.01400 0.00707 -0.1042 0.8134 0.1085
-8.750 -0.4578 0.01381 0.00683 -0.1037 0.8050 0.1110
-8.500 -0.4329 0.01359 0.00657 -0.1032 0.7968 0.1138
-8.250 -0.4073 0.01340 0.00636 -0.1027 0.7887 0.1167
-8.000 -0.3814 0.01325 0.00615 -0.1023 0.7799 0.1192
-7.750 -0.3561 0.01306 0.00593 -0.1018 0.7716 0.1219
-7.500 -0.3305 0.01287 0.00573 -0.1013 0.7627 0.1249
-7.250 -0.3047 0.01274 0.00554 -0.1009 0.7542 0.1279
-7.000 -0.2784 0.01260 0.00536 -0.1005 0.7454 0.1306
-6.750 -0.2532 0.01243 0.00517 -0.0999 0.7356 0.1340
-6.500 -0.2272 0.01229 0.00501 -0.0995 0.7267 0.1375
-6.250 -0.2011 0.01219 0.00485 -0.0991 0.7172 0.1410
-6.000 -0.1756 0.01204 0.00469 -0.0985 0.7084 0.1459
-5.750 -0.1497 0.01192 0.00455 -0.0981 0.6981 0.1515
-5.500 -0.1243 0.01181 0.00441 -0.0975 0.6883 0.1568
-5.250 -0.0984 0.01169 0.00428 -0.0971 0.6782 0.1625
-5.000 -0.0728 0.01161 0.00416 -0.0965 0.6689 0.1679
-4.750 -0.0467 0.01149 0.00405 -0.0961 0.6596 0.1747
-4.500 -0.0212 0.01144 0.00396 -0.0956 0.6497 0.1817
-4.250 0.0048 0.01134 0.00388 -0.0951 0.6401 0.1909
-4.000 0.0302 0.01129 0.00381 -0.0945 0.6299 0.1999
-3.750 0.0565 0.01124 0.00375 -0.0942 0.6212 0.2090
-3.500 0.0824 0.01119 0.00371 -0.0937 0.6122 0.2176
-3.250 0.1085 0.01118 0.00366 -0.0932 0.6042 0.2256
-3.000 0.1348 0.01114 0.00362 -0.0928 0.5955 0.2330
-2.500 0.1869 0.01113 0.00356 -0.0919 0.5787 0.2472
-2.250 0.2126 0.01111 0.00354 -0.0914 0.5705 0.2542
-2.000 0.2384 0.01112 0.00352 -0.0909 0.5637 0.2607
-1.750 0.2652 0.01111 0.00350 -0.0906 0.5569 0.2664
-1.500 0.2908 0.01110 0.00350 -0.0901 0.5497 0.2739
-1.250 0.3163 0.01112 0.00350 -0.0895 0.5429 0.2818
-1.000 0.3427 0.01110 0.00350 -0.0892 0.5363 0.2903
-0.750 0.3683 0.01110 0.00351 -0.0887 0.5298 0.3004
-0.250 0.4199 0.01111 0.00356 -0.0878 0.5185 0.3253
0.000 0.4454 0.01109 0.00360 -0.0873 0.5122 0.3433
0.250 0.4696 0.01110 0.00364 -0.0865 0.5054 0.3649
0.500 0.4947 0.01109 0.00369 -0.0860 0.4989 0.3890
0.750 0.5196 0.01108 0.00375 -0.0854 0.4917 0.4136
1.000 0.5435 0.01110 0.00382 -0.0846 0.4853 0.4400
1.250 0.5683 0.01109 0.00390 -0.0840 0.4803 0.4674
1.500 0.5937 0.01108 0.00397 -0.0835 0.4750 0.4920
1.750 0.6181 0.01110 0.00406 -0.0828 0.4695 0.5169
2.000 0.6407 0.01114 0.00416 -0.0818 0.4641 0.5444
2.250 0.6645 0.01115 0.00426 -0.0810 0.4596 0.5738
2.500 0.6885 0.01116 0.00437 -0.0802 0.4548 0.6032
2.750 0.7113 0.01121 0.00449 -0.0792 0.4495 0.6319
3.000 0.7334 0.01131 0.00464 -0.0781 0.4443 0.6587
3.250 0.7578 0.01137 0.00478 -0.0774 0.4400 0.6857
3.500 0.7824 0.01143 0.00494 -0.0768 0.4353 0.7130
3.750 0.8058 0.01153 0.00512 -0.0759 0.4300 0.7401
4.000 0.8280 0.01167 0.00531 -0.0749 0.4248 0.7670
4.250 0.8516 0.01176 0.00550 -0.0740 0.4205 0.7964
4.500 0.8747 0.01185 0.00571 -0.0731 0.4157 0.8297
4.750 0.8951 0.01197 0.00594 -0.0715 0.4104 0.8698
5.000 0.9138 0.01217 0.00620 -0.0696 0.4052 0.9136
5.250 0.9409 0.01235 0.00644 -0.0694 0.4005 0.9533
5.500 0.9745 0.01258 0.00667 -0.0708 0.3947 0.9824
5.750 1.0032 0.01285 0.00690 -0.0714 0.3880 1.0000
6.000 1.0225 0.01309 0.00712 -0.0700 0.3817 1.0000
6.250 1.0418 0.01336 0.00736 -0.0687 0.3735 1.0000
6.500 1.0596 0.01371 0.00766 -0.0671 0.3651 1.0000
6.750 1.0787 0.01404 0.00795 -0.0659 0.3552 1.0000
7.000 1.0964 0.01444 0.00831 -0.0644 0.3463 1.0000
7.250 1.1156 0.01482 0.00866 -0.0632 0.3372 1.0000
7.500 1.1334 0.01526 0.00906 -0.0619 0.3297 1.0000
7.750 1.1525 0.01568 0.00946 -0.0607 0.3212 1.0000
8.000 1.1694 0.01620 0.00994 -0.0593 0.3133 1.0000
8.250 1.1879 0.01667 0.01040 -0.0582 0.3052 1.0000
8.500 1.2036 0.01728 0.01097 -0.0568 0.2969 1.0000
8.750 1.2211 0.01784 0.01150 -0.0556 0.2888 1.0000
9.000 1.2354 0.01855 0.01218 -0.0541 0.2809 1.0000
9.250 1.2530 0.01913 0.01276 -0.0530 0.2742 1.0000
9.500 1.2674 0.01989 0.01350 -0.0516 0.2671 1.0000
9.750 1.2832 0.02060 0.01420 -0.0505 0.2608 1.0000
10.000 1.2976 0.02140 0.01499 -0.0492 0.2538 1.0000
10.250 1.3107 0.02229 0.01586 -0.0478 0.2474 1.0000
10.500 1.3257 0.02310 0.01668 -0.0467 0.2410 1.0000
10.750 1.3378 0.02410 0.01767 -0.0454 0.2346 1.0000
11.000 1.3515 0.02504 0.01861 -0.0443 0.2289 1.0000
11.250 1.3639 0.02608 0.01965 -0.0431 0.2222 1.0000
11.500 1.3741 0.02729 0.02086 -0.0418 0.2157 1.0000
11.750 1.3849 0.02850 0.02206 -0.0406 0.2077 1.0000
12.000 1.3931 0.02994 0.02349 -0.0394 0.2002 1.0000
12.250 1.4010 0.03144 0.02498 -0.0382 0.1918 1.0000
12.500 1.4085 0.03301 0.02655 -0.0370 0.1841 1.0000
12.750 1.4126 0.03490 0.02841 -0.0358 0.1760 1.0000
13.000 1.4189 0.03666 0.03017 -0.0347 0.1679 1.0000
13.250 1.4226 0.03869 0.03219 -0.0337 0.1603 1.0000
13.500 1.4246 0.04092 0.03442 -0.0326 0.1528 1.0000
13.750 1.4280 0.04308 0.03658 -0.0318 0.1462 1.0000
14.000 1.4283 0.04556 0.03906 -0.0309 0.1398 1.0000
14.250 1.4305 0.04794 0.04146 -0.0302 0.1338 1.0000
14.500 1.4299 0.05063 0.04416 -0.0295 0.1289 1.0000
14.750 1.4334 0.05294 0.04650 -0.0290 0.1248 1.0000
15.000 1.4342 0.05557 0.04916 -0.0285 0.1213 1.0000
15.250 1.4347 0.05829 0.05191 -0.0281 0.1184 1.0000
15.500 1.4384 0.06068 0.05436 -0.0279 0.1158 1.0000
15.750 1.4390 0.06345 0.05717 -0.0276 0.1131 1.0000
16.000 1.4384 0.06636 0.06011 -0.0274 0.1106 1.0000
16.250 1.4390 0.06916 0.06296 -0.0273 0.1085 1.0000
16.500 1.4408 0.07187 0.06573 -0.0272 0.1063 1.0000
16.750 1.4413 0.07474 0.06865 -0.0272 0.1040 1.0000
17.000 1.4392 0.07795 0.07190 -0.0273 0.1018 1.0000
17.250 1.4385 0.08098 0.07497 -0.0274 0.0999 1.0000
17.500 1.4396 0.08384 0.07790 -0.0276 0.0980 1.0000
17.750 1.4405 0.08673 0.08084 -0.0279 0.0959 1.0000
18.000 1.4385 0.09003 0.08419 -0.0282 0.0940 1.0000
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