NACA 4421 (naca4421-il) Xfoil prediction polar at RE=1,000,000 Ncrit=5
| Details | Polar file |
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Airfoil: NACA 4421 (naca4421-il) Reynolds number: 1,000,000 Max Cl/Cd: 93.21 at α=5.75° Description: Mach=0 Ncrit=5 Source: Xfoil prediction Download polar: xf-naca4421-il-1000000-n5.txt Download as CSV file: xf-naca4421-il-1000000-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 = 1.000 e 6 Ncrit = 5.000
alpha CL CD CDp CM Top_Xtr Bot_Xtr
------ -------- --------- --------- -------- -------- --------
-19.750 -0.9711 0.08521 0.08128 -0.0896 1.0000 0.0371
-19.500 -0.9981 0.07864 0.07460 -0.0926 1.0000 0.0373
-19.250 -1.0324 0.07136 0.06719 -0.0959 1.0000 0.0375
-19.000 -1.0643 0.06472 0.06044 -0.0986 1.0000 0.0376
-18.750 -1.0957 0.05846 0.05405 -0.1008 1.0000 0.0378
-18.500 -1.1250 0.05282 0.04830 -0.1024 1.0000 0.0380
-18.250 -1.1463 0.04782 0.04319 -0.1041 0.9996 0.0382
-18.000 -1.1511 0.04331 0.03857 -0.1075 0.9982 0.0385
-17.750 -1.1505 0.03948 0.03465 -0.1107 0.9965 0.0389
-17.500 -1.1451 0.03622 0.03131 -0.1136 0.9948 0.0394
-17.250 -1.1355 0.03350 0.02850 -0.1162 0.9934 0.0399
-17.000 -1.1223 0.03115 0.02608 -0.1187 0.9922 0.0404
-16.750 -1.1101 0.02918 0.02404 -0.1202 0.9892 0.0408
-16.500 -1.0963 0.02747 0.02228 -0.1215 0.9856 0.0413
-16.250 -1.0829 0.02570 0.02045 -0.1228 0.9819 0.0419
-16.000 -1.0664 0.02420 0.01890 -0.1240 0.9788 0.0426
-15.750 -1.0553 0.02299 0.01765 -0.1236 0.9725 0.0432
-15.500 -1.0402 0.02192 0.01653 -0.1236 0.9670 0.0439
-15.250 -1.0258 0.02102 0.01558 -0.1230 0.9613 0.0446
-15.000 -1.0114 0.02024 0.01474 -0.1221 0.9543 0.0453
-14.750 -0.9969 0.01947 0.01393 -0.1211 0.9481 0.0461
-14.500 -0.9834 0.01875 0.01317 -0.1198 0.9405 0.0470
-14.250 -0.9682 0.01813 0.01249 -0.1185 0.9332 0.0479
-14.000 -0.9518 0.01758 0.01191 -0.1172 0.9261 0.0488
-13.750 -0.9346 0.01710 0.01138 -0.1159 0.9183 0.0497
-13.500 -0.9169 0.01667 0.01089 -0.1146 0.9111 0.0506
-13.250 -0.9011 0.01621 0.01040 -0.1129 0.9023 0.0517
-13.000 -0.8838 0.01583 0.00996 -0.1113 0.8942 0.0529
-12.750 -0.8632 0.01547 0.00956 -0.1103 0.8855 0.0541
-12.250 -0.8205 0.01477 0.00878 -0.1084 0.8683 0.0570
-12.000 -0.7985 0.01443 0.00840 -0.1075 0.8595 0.0589
-11.500 -0.7527 0.01380 0.00771 -0.1061 0.8436 0.0632
-11.250 -0.7291 0.01352 0.00740 -0.1054 0.8358 0.0658
-11.000 -0.7053 0.01322 0.00709 -0.1048 0.8280 0.0686
-10.750 -0.6811 0.01297 0.00680 -0.1042 0.8195 0.0718
-10.500 -0.6567 0.01271 0.00653 -0.1036 0.8120 0.0752
-10.250 -0.6315 0.01249 0.00629 -0.1031 0.8036 0.0787
-10.000 -0.6068 0.01227 0.00605 -0.1026 0.7954 0.0825
-9.750 -0.5807 0.01208 0.00585 -0.1022 0.7877 0.0859
-9.500 -0.5554 0.01188 0.00563 -0.1017 0.7788 0.0893
-9.250 -0.5292 0.01173 0.00545 -0.1014 0.7709 0.0922
-9.000 -0.5030 0.01157 0.00526 -0.1010 0.7620 0.0946
-8.750 -0.4774 0.01142 0.00508 -0.1005 0.7530 0.0974
-8.500 -0.4505 0.01128 0.00492 -0.1003 0.7449 0.1000
-8.250 -0.4242 0.01117 0.00476 -0.0999 0.7356 0.1021
-8.000 -0.3979 0.01101 0.00459 -0.0996 0.7269 0.1049
-7.750 -0.3715 0.01090 0.00445 -0.0992 0.7166 0.1074
-7.500 -0.3447 0.01081 0.00431 -0.0989 0.7078 0.1096
-7.250 -0.3180 0.01069 0.00417 -0.0986 0.6984 0.1120
-7.000 -0.2919 0.01059 0.00404 -0.0981 0.6888 0.1147
-6.750 -0.2650 0.01049 0.00391 -0.0979 0.6785 0.1173
-6.500 -0.2386 0.01044 0.00380 -0.0975 0.6681 0.1195
-6.250 -0.2117 0.01033 0.00368 -0.0972 0.6585 0.1224
-5.750 -0.1583 0.01018 0.00348 -0.0965 0.6399 0.1286
-5.500 -0.1321 0.01013 0.00339 -0.0961 0.6292 0.1320
-5.250 -0.1054 0.01003 0.00329 -0.0958 0.6199 0.1373
-5.000 -0.0790 0.00999 0.00321 -0.0954 0.6094 0.1422
-4.750 -0.0523 0.00989 0.00312 -0.0951 0.6014 0.1482
-4.500 -0.0253 0.00984 0.00305 -0.0948 0.5926 0.1529
-4.250 0.0010 0.00978 0.00298 -0.0944 0.5844 0.1585
-4.000 0.0282 0.00972 0.00292 -0.0942 0.5762 0.1646
-3.750 0.0543 0.00968 0.00287 -0.0937 0.5670 0.1719
-3.250 0.1081 0.00956 0.00277 -0.0932 0.5518 0.1908
-2.750 0.1620 0.00949 0.00272 -0.0926 0.5389 0.2093
-2.500 0.1890 0.00945 0.00271 -0.0924 0.5322 0.2180
-2.250 0.2155 0.00948 0.00270 -0.0920 0.5249 0.2251
-2.000 0.2429 0.00945 0.00269 -0.0918 0.5191 0.2318
-1.750 0.2701 0.00944 0.00269 -0.0916 0.5129 0.2391
-1.500 0.2970 0.00947 0.00269 -0.0913 0.5070 0.2441
-1.250 0.3238 0.00948 0.00269 -0.0910 0.5018 0.2494
-1.000 0.3513 0.00946 0.00270 -0.0908 0.4969 0.2554
-0.750 0.3780 0.00949 0.00271 -0.0905 0.4903 0.2607
-0.500 0.4037 0.00956 0.00274 -0.0900 0.4825 0.2651
-0.250 0.4307 0.00954 0.00275 -0.0898 0.4762 0.2733
0.000 0.4568 0.00958 0.00278 -0.0893 0.4689 0.2809
0.250 0.4823 0.00963 0.00282 -0.0888 0.4628 0.2886
0.500 0.5093 0.00961 0.00285 -0.0886 0.4587 0.2997
0.750 0.5356 0.00960 0.00288 -0.0883 0.4537 0.3154
1.000 0.5609 0.00959 0.00294 -0.0877 0.4481 0.3400
1.250 0.5857 0.00960 0.00300 -0.0871 0.4428 0.3664
1.500 0.6121 0.00957 0.00306 -0.0868 0.4392 0.3923
1.750 0.6376 0.00956 0.00312 -0.0864 0.4343 0.4192
2.000 0.6616 0.00958 0.00319 -0.0856 0.4291 0.4418
2.250 0.6847 0.00963 0.00328 -0.0846 0.4241 0.4616
2.500 0.7094 0.00963 0.00335 -0.0840 0.4204 0.4841
2.750 0.7338 0.00965 0.00344 -0.0833 0.4158 0.5071
3.000 0.7578 0.00970 0.00354 -0.0825 0.4106 0.5299
3.250 0.7818 0.00979 0.00367 -0.0818 0.4057 0.5549
3.500 0.8074 0.00984 0.00380 -0.0814 0.4018 0.5824
4.000 0.8577 0.00998 0.00409 -0.0805 0.3916 0.6387
4.250 0.8815 0.01011 0.00427 -0.0798 0.3863 0.6667
4.500 0.9070 0.01019 0.00442 -0.0794 0.3822 0.6918
4.750 0.9318 0.01030 0.00459 -0.0789 0.3764 0.7141
5.000 0.9544 0.01049 0.00480 -0.0780 0.3684 0.7373
5.250 0.9781 0.01061 0.00500 -0.0773 0.3611 0.7653
5.500 0.9995 0.01081 0.00525 -0.0762 0.3515 0.7996
5.750 1.0207 0.01095 0.00551 -0.0750 0.3422 0.8450
6.000 1.0382 0.01119 0.00582 -0.0731 0.3310 0.8920
6.250 1.0555 0.01142 0.00611 -0.0711 0.3208 0.9362
6.500 1.0780 0.01174 0.00642 -0.0703 0.3107 0.9753
6.750 1.1052 0.01207 0.00670 -0.0707 0.3009 1.0000
7.000 1.1252 0.01241 0.00700 -0.0695 0.2931 1.0000
7.250 1.1442 0.01280 0.00734 -0.0683 0.2843 1.0000
7.500 1.1639 0.01318 0.00769 -0.0671 0.2765 1.0000
7.750 1.1830 0.01360 0.00807 -0.0660 0.2687 1.0000
8.000 1.2022 0.01403 0.00847 -0.0649 0.2625 1.0000
8.250 1.2222 0.01443 0.00886 -0.0639 0.2562 1.0000
8.500 1.2397 0.01495 0.00934 -0.0626 0.2493 1.0000
8.750 1.2591 0.01540 0.00978 -0.0616 0.2433 1.0000
9.000 1.2769 0.01593 0.01028 -0.0604 0.2365 1.0000
9.250 1.2948 0.01648 0.01081 -0.0593 0.2310 1.0000
9.500 1.3130 0.01702 0.01134 -0.0583 0.2251 1.0000
9.750 1.3286 0.01769 0.01198 -0.0570 0.2183 1.0000
10.000 1.3456 0.01831 0.01259 -0.0559 0.2119 1.0000
10.250 1.3590 0.01915 0.01338 -0.0544 0.2031 1.0000
10.500 1.3733 0.01995 0.01416 -0.0531 0.1944 1.0000
10.750 1.3861 0.02087 0.01504 -0.0516 0.1862 1.0000
11.000 1.3975 0.02187 0.01601 -0.0501 0.1777 1.0000
11.250 1.4100 0.02285 0.01697 -0.0488 0.1699 1.0000
11.500 1.4193 0.02407 0.01815 -0.0473 0.1612 1.0000
11.750 1.4272 0.02541 0.01945 -0.0457 0.1516 1.0000
12.000 1.4353 0.02679 0.02080 -0.0442 0.1430 1.0000
12.250 1.4439 0.02817 0.02216 -0.0429 0.1364 1.0000
12.500 1.4515 0.02967 0.02365 -0.0416 0.1302 1.0000
12.750 1.4600 0.03116 0.02514 -0.0405 0.1249 1.0000
13.000 1.4665 0.03283 0.02679 -0.0393 0.1196 1.0000
13.250 1.4747 0.03440 0.02838 -0.0383 0.1156 1.0000
13.500 1.4818 0.03610 0.03009 -0.0373 0.1119 1.0000
13.750 1.4889 0.03785 0.03185 -0.0364 0.1089 1.0000
14.000 1.4974 0.03952 0.03356 -0.0357 0.1066 1.0000
14.250 1.5046 0.04130 0.03537 -0.0350 0.1039 1.0000
14.500 1.5089 0.04340 0.03749 -0.0342 0.1014 1.0000
14.750 1.5154 0.04531 0.03943 -0.0336 0.0993 1.0000
15.000 1.5219 0.04728 0.04144 -0.0331 0.0974 1.0000
15.250 1.5267 0.04943 0.04363 -0.0325 0.0954 1.0000
15.500 1.5305 0.05169 0.04592 -0.0320 0.0934 1.0000
15.750 1.5328 0.05413 0.04840 -0.0316 0.0917 1.0000
16.000 1.5386 0.05624 0.05055 -0.0312 0.0902 1.0000
16.250 1.5415 0.05869 0.05305 -0.0309 0.0885 1.0000
16.500 1.5436 0.06123 0.05564 -0.0306 0.0867 1.0000
16.750 1.5440 0.06399 0.05843 -0.0304 0.0850 1.0000
17.000 1.5448 0.06671 0.06120 -0.0302 0.0835 1.0000
17.250 1.5476 0.06922 0.06377 -0.0301 0.0820 1.0000
17.500 1.5475 0.07211 0.06671 -0.0300 0.0803 1.0000
17.750 1.5474 0.07498 0.06961 -0.0300 0.0786 1.0000
18.000 1.5439 0.07832 0.07299 -0.0301 0.0769 1.0000
18.250 1.5459 0.08096 0.07569 -0.0301 0.0754 1.0000
18.500 1.5438 0.08416 0.07894 -0.0303 0.0736 1.0000
18.750 1.5421 0.08729 0.08211 -0.0305 0.0716 1.0000
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