XFOIL Version 6.96 Calculated polar for: LOCKHEED C-141 BL761.11 AIRFOIL 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 ------ -------- --------- --------- -------- -------- -------- -16.750 -1.1995 0.04790 0.04486 -0.0782 1.0000 0.0122 -16.500 -1.2226 0.04151 0.03826 -0.0824 1.0000 0.0122 -16.250 -1.2339 0.03767 0.03427 -0.0837 1.0000 0.0123 -16.000 -1.2398 0.03494 0.03142 -0.0835 1.0000 0.0123 -15.750 -1.2425 0.03287 0.02923 -0.0823 1.0000 0.0124 -15.500 -1.2445 0.03119 0.02744 -0.0803 1.0000 0.0125 -15.250 -1.2486 0.02992 0.02607 -0.0769 1.0000 0.0126 -15.000 -1.2589 0.02901 0.02509 -0.0715 1.0000 0.0127 -14.750 -1.2623 0.02811 0.02409 -0.0671 1.0000 0.0128 -14.500 -1.2482 0.02697 0.02286 -0.0661 0.9990 0.0130 -14.250 -1.2293 0.02587 0.02164 -0.0659 0.9977 0.0131 -14.000 -1.2086 0.02482 0.02048 -0.0659 0.9965 0.0133 -13.750 -1.1861 0.02383 0.01938 -0.0662 0.9954 0.0135 -13.500 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0.9696 0.0197 -8.750 -0.6736 0.01277 0.00710 -0.0680 0.9669 0.0200 -8.500 -0.6479 0.01239 0.00670 -0.0677 0.9644 0.0206 -8.250 -0.6215 0.01206 0.00635 -0.0675 0.9622 0.0212 -8.000 -0.5946 0.01176 0.00604 -0.0675 0.9603 0.0218 -7.750 -0.5672 0.01148 0.00573 -0.0675 0.9585 0.0224 -7.500 -0.5421 0.01122 0.00545 -0.0670 0.9555 0.0230 -7.250 -0.5162 0.01098 0.00517 -0.0666 0.9525 0.0235 -7.000 -0.4900 0.01071 0.00488 -0.0663 0.9496 0.0240 -6.750 -0.4636 0.01042 0.00459 -0.0660 0.9470 0.0249 -6.500 -0.4363 0.01018 0.00434 -0.0659 0.9447 0.0258 -6.250 -0.4098 0.00996 0.00411 -0.0657 0.9419 0.0267 -6.000 -0.3834 0.00976 0.00389 -0.0654 0.9383 0.0274 -5.750 -0.3568 0.00955 0.00366 -0.0651 0.9348 0.0282 -5.500 -0.3298 0.00931 0.00344 -0.0649 0.9317 0.0295 -5.250 -0.3022 0.00912 0.00323 -0.0648 0.9289 0.0309 -5.000 -0.2754 0.00895 0.00306 -0.0646 0.9249 0.0321 -4.750 -0.2485 0.00876 0.00288 -0.0644 0.9206 0.0336 -4.500 -0.2212 0.00858 0.00271 -0.0642 0.9166 0.0356 -4.250 -0.1934 0.00843 0.00254 -0.0642 0.9130 0.0376 -4.000 -0.1664 0.00826 0.00240 -0.0640 0.9079 0.0405 -3.750 -0.1389 0.00812 0.00227 -0.0638 0.9027 0.0433 -3.500 -0.1112 0.00797 0.00212 -0.0637 0.8981 0.0468 -3.250 -0.0837 0.00785 0.00201 -0.0636 0.8926 0.0502 -3.000 -0.0561 0.00771 0.00190 -0.0635 0.8867 0.0550 -2.750 -0.0282 0.00761 0.00179 -0.0634 0.8812 0.0594 -2.500 -0.0006 0.00749 0.00171 -0.0633 0.8748 0.0650 -2.250 0.0273 0.00740 0.00162 -0.0632 0.8685 0.0696 -2.000 0.0550 0.00730 0.00154 -0.0632 0.8620 0.0763 -1.750 0.0826 0.00722 0.00146 -0.0630 0.8534 0.0828 -1.500 0.1100 0.00714 0.00139 -0.0628 0.8420 0.0907 -1.250 0.1371 0.00707 0.00133 -0.0626 0.8300 0.1021 -1.000 0.1642 0.00701 0.00127 -0.0623 0.8183 0.1168 -0.750 0.1910 0.00693 0.00123 -0.0620 0.8036 0.1385 -0.500 0.2166 0.00682 0.00117 -0.0615 0.7803 0.1782 -0.250 0.2404 0.00660 0.00112 -0.0607 0.7524 0.2724 0.000 0.2632 0.00616 0.00107 -0.0599 0.7271 0.4283 0.250 0.2854 0.00589 0.00107 -0.0588 0.6944 0.5544 0.500 0.3065 0.00573 0.00112 -0.0574 0.6541 0.6718 0.750 0.3279 0.00581 0.00120 -0.0560 0.5999 0.7359 1.000 0.3508 0.00592 0.00129 -0.0549 0.5568 0.7776 1.250 0.3737 0.00606 0.00139 -0.0538 0.5120 0.8198 1.500 0.3945 0.00639 0.00155 -0.0523 0.4408 0.8565 1.750 0.4135 0.00687 0.00177 -0.0504 0.3508 0.8938 2.000 0.4354 0.00718 0.00194 -0.0490 0.2998 0.9238 2.250 0.4590 0.00746 0.00211 -0.0480 0.2606 0.9453 2.500 0.4841 0.00776 0.00225 -0.0474 0.2238 0.9584 2.750 0.5112 0.00806 0.00240 -0.0473 0.1919 0.9663 3.000 0.5392 0.00829 0.00254 -0.0474 0.1694 0.9726 3.250 0.5685 0.00857 0.00268 -0.0478 0.1427 0.9774 3.500 0.5954 0.00890 0.00285 -0.0478 0.1123 0.9832 3.750 0.6263 0.00917 0.00303 -0.0486 0.0949 0.9860 4.000 0.6570 0.00940 0.00320 -0.0493 0.0846 0.9890 4.250 0.6875 0.00963 0.00337 -0.0500 0.0771 0.9919 4.500 0.7179 0.00984 0.00355 -0.0507 0.0712 0.9943 4.750 0.7495 0.01006 0.00373 -0.0517 0.0658 0.9959 5.000 0.7805 0.01030 0.00392 -0.0525 0.0596 0.9978 5.250 0.8111 0.01054 0.00412 -0.0533 0.0537 0.9997 5.500 0.8335 0.01076 0.00430 -0.0522 0.0481 1.0000 5.750 0.8543 0.01100 0.00450 -0.0508 0.0426 1.0000 6.000 0.8754 0.01124 0.00471 -0.0495 0.0380 1.0000 6.250 0.8969 0.01149 0.00493 -0.0482 0.0347 1.0000 6.500 0.9187 0.01176 0.00517 -0.0470 0.0318 1.0000 6.750 0.9413 0.01201 0.00542 -0.0461 0.0301 1.0000 7.000 0.9640 0.01228 0.00568 -0.0451 0.0286 1.0000 7.250 0.9866 0.01259 0.00598 -0.0441 0.0272 1.0000 7.500 1.0097 0.01286 0.00626 -0.0433 0.0265 1.0000 7.750 1.0328 0.01314 0.00656 -0.0424 0.0257 1.0000 8.000 1.0557 0.01344 0.00687 -0.0416 0.0249 1.0000 8.250 1.0783 0.01377 0.00720 -0.0407 0.0241 1.0000 8.500 1.1005 0.01415 0.00758 -0.0398 0.0232 1.0000 8.750 1.1227 0.01451 0.00795 -0.0389 0.0227 1.0000 9.000 1.1452 0.01483 0.00831 -0.0380 0.0223 1.0000 9.250 1.1674 0.01518 0.00868 -0.0371 0.0218 1.0000 9.500 1.1892 0.01554 0.00908 -0.0361 0.0213 1.0000 9.750 1.2106 0.01592 0.00948 -0.0351 0.0209 1.0000 10.000 1.2315 0.01633 0.00991 -0.0340 0.0204 1.0000 10.250 1.2515 0.01676 0.01035 -0.0328 0.0199 1.0000 10.500 1.2696 0.01727 0.01089 -0.0312 0.0193 1.0000 10.750 1.2883 0.01771 0.01137 -0.0298 0.0190 1.0000 11.000 1.3070 0.01814 0.01185 -0.0284 0.0188 1.0000 11.250 1.3253 0.01860 0.01235 -0.0269 0.0185 1.0000 11.500 1.3433 0.01909 0.01288 -0.0254 0.0181 1.0000 11.750 1.3608 0.01960 0.01344 -0.0239 0.0178 1.0000 12.000 1.3779 0.02013 0.01402 -0.0224 0.0175 1.0000 12.250 1.3946 0.02070 0.01463 -0.0209 0.0172 1.0000 12.500 1.4107 0.02129 0.01527 -0.0193 0.0169 1.0000 12.750 1.4261 0.02194 0.01596 -0.0177 0.0167 1.0000 13.000 1.4403 0.02267 0.01673 -0.0160 0.0163 1.0000 13.250 1.4524 0.02354 0.01766 -0.0141 0.0160 1.0000 13.500 1.4664 0.02428 0.01846 -0.0124 0.0158 1.0000 13.750 1.4802 0.02503 0.01928 -0.0108 0.0156 1.0000 14.000 1.4932 0.02585 0.02017 -0.0092 0.0154 1.0000 14.250 1.5050 0.02675 0.02115 -0.0075 0.0152 1.0000 14.500 1.5162 0.02772 0.02218 -0.0059 0.0150 1.0000 14.750 1.5268 0.02874 0.02328 -0.0043 0.0148 1.0000 15.000 1.5366 0.02985 0.02447 -0.0027 0.0147 1.0000 15.250 1.5456 0.03103 0.02572 -0.0011 0.0145 1.0000 15.500 1.5538 0.03231 0.02708 0.0003 0.0143 1.0000 15.750 1.5611 0.03371 0.02856 0.0018 0.0141 1.0000 16.000 1.5674 0.03523 0.03015 0.0031 0.0140 1.0000 16.250 1.5723 0.03691 0.03191 0.0044 0.0138 1.0000 16.500 1.5758 0.03879 0.03387 0.0055 0.0137 1.0000 16.750 1.5776 0.04091 0.03608 0.0065 0.0135 1.0000 17.000 1.5769 0.04335 0.03861 0.0074 0.0134 1.0000 17.250 1.5735 0.04620 0.04158 0.0080 0.0132 1.0000 17.500 1.5679 0.04949 0.04498 0.0082 0.0131 1.0000 17.750 1.5650 0.05264 0.04825 0.0081 0.0131 1.0000 18.000 1.5599 0.05623 0.05196 0.0076 0.0130 1.0000 18.250 1.5528 0.06030 0.05616 0.0067 0.0129 1.0000 18.500 1.5429 0.06499 0.06098 0.0053 0.0129 1.0000 18.750 1.5298 0.07037 0.06650 0.0033 0.0129 1.0000 19.000 1.5129 0.07665 0.07294 0.0005 0.0128 1.0000 19.250 1.4913 0.08407 0.08052 -0.0030 0.0128 1.0000