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NN7 MK20 (nn7mk20-il)

NN7 MK20 - NN7 MK20 airfoil


Airfoil nn7mk20-il
Details Dat file Parser  
(nn7mk20-il) NN7 MK20
NN7 MK20 airfoil
Max thickness 16.9% at 37.1% chord.
Max camber 3% at 59.8% chord
Source UIUC Airfoil Coordinates Database
Source dat file
The dat file is in Selig format
NN7 MK20
1.00000     0.00000
0.99893     0.00029
0.99572     0.00115
0.99039     0.00258
0.98296     0.00456
0.97347     0.00704
0.96194     0.00994
0.94844     0.01323
0.93301     0.01691
0.91573     0.02105
0.89668     0.02573
0.87592     0.03093
0.85355     0.03654
0.82967     0.04241
0.80438     0.04851
0.77779     0.05490
0.75000     0.06159
0.72114     0.06846
0.69134     0.07531
0.66072     0.08198
0.62941     0.08834
0.59755     0.09426
0.56526     0.09960
0.53270     0.10420
0.50000     0.10792
0.46730     0.11068
0.43474     0.11249
0.40245     0.11342
0.37059     0.11346
0.33928     0.11260
0.30866     0.11080
0.27886     0.10810
0.25000     0.10456
0.22221     0.10033
0.19562     0.09549
0.17033     0.09012
0.14645     0.08422
0.12408     0.07784
0.10332     0.07102
0.08427     0.06385
0.06699     0.05642
0.05156     0.04890
0.03806     0.04133
0.02653     0.03369
0.01704     0.02605
0.00961     0.01834
0.00428     0.01100
0.00107     0.00487
0.00000     0.00000
0.00107     -0.00401
0.00428     -0.00792
0.00961     -0.01202
0.01704     -0.01595
0.02653     -0.01978
0.03806     -0.02366
0.05156     -0.02752
0.06699     -0.03122
0.08427     -0.03465
0.10332     -0.03790
0.12408     -0.04112
0.14645     -0.04428
0.17033     -0.04716
0.19562     -0.04957
0.22221     -0.05152
0.25000     -0.05310
0.27886     -0.05437
0.30866     -0.05521
0.33928     -0.05546
0.37059     -0.05511
0.40245     -0.05427
0.43474     -0.05291
0.46730     -0.05084
0.50000     -0.04786
0.53270     -0.04390
0.56526     -0.03908
0.59755     -0.03361
0.62941     -0.02771
0.66072     -0.02161
0.69134     -0.01558
0.72114     -0.00996
0.75000     -0.00515
0.77779     -0.00145
0.80438     0.00109
0.82967     0.00264
0.85355     0.00340
0.87592     0.00357
0.89668     0.00331
0.91573     0.00283
0.93301     0.00232
0.94844     0.00186
0.96194     0.00146
0.97347     0.00107
0.98296     0.00071
0.99039     0.00040
0.99572     0.00018
0.99893     0.00004
1.00000     0.00000
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Lednicer format dat file
Selig format dat file

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Polars for NN7 MK20 (nn7mk20-il)

PlotAirfoilReynolds #NcritMax Cl/CdDescriptionSource 
   nn7mk20-il50,000921 at α=12.75°Mach=0 Ncrit=9Xfoil predictionDetails
   nn7mk20-il50,000517.2 at α=12°Mach=0 Ncrit=5Xfoil predictionDetails
   nn7mk20-il100,000944.2 at α=10°Mach=0 Ncrit=9Xfoil predictionDetails
   nn7mk20-il100,000543.8 at α=8.5°Mach=0 Ncrit=5Xfoil predictionDetails
   nn7mk20-il200,000970.2 at α=8.75°Mach=0 Ncrit=9Xfoil predictionDetails
   nn7mk20-il200,000569.9 at α=7.25°Mach=0 Ncrit=5Xfoil predictionDetails
   nn7mk20-il500,0009101.8 at α=7°Mach=0 Ncrit=9Xfoil predictionDetails
   nn7mk20-il500,000599 at α=5.75°Mach=0 Ncrit=5Xfoil predictionDetails
   nn7mk20-il1,000,0009127.2 at α=5.75°Mach=0 Ncrit=9Xfoil predictionDetails
   nn7mk20-il1,000,0005118.1 at α=5°Mach=0 Ncrit=5Xfoil predictionDetails
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