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NASA/LANGLEY LS(1)-0421 AIRFOIL (ls421-il)

NASA/LANGLEY LS(1)-0421 AIRFOIL - NASA/Langley LS(1)-0421 general aviation airfoil


Airfoil ls421-il
Details Dat file Parser  
(ls421-il) NASA/LANGLEY LS(1)-0421 AIRFOIL
NASA/Langley LS(1)-0421 general aviation airfoil
Max thickness 20.9% at 40% chord.
Max camber 2.4% at 65% chord
Source UIUC Airfoil Coordinates Database
Source dat file
The dat file is in Lednicer format
 NASA/LANGLEY LS(1)-0421 AIRFOIL
38.        38.
 
 0.00000   0.00000
  .00200    .01560
  .00500    .02377
  .01250    .03599
  .02500    .04912
  .03750    .05853
  .05000    .06606
  .07500    .07771
  .10000    .08664
  .12500    .09388
  .15000    .09993
  .17500    .10507
  .20000    .10943
  .25000    .11617
  .30000    .12074
  .35000    .12344
  .40000    .12439
  .45000    .12365
  .50000    .12112
  .55000    .11657
  .57500    .11342
  .60000    .10965
  .62500    .10525
  .65000    .10025
  .67500    .09470
  .70000    .08865
  .72500    .08216
  .75000    .07530
  .77500    .06814
  .80000    .06075
  .82500    .05318
  .85000    .04550
  .87500    .03775
  .90000    .03000
  .92500    .02232
  .95000    .01476
  .97500    .00735
 1.00000    .00016
 
 0.00000   0.00000
  .00200   -.01071
  .00500   -.01775
  .01250   -.02653
  .02500   -.03522
  .03750   -.04137
  .05000   -.04650
  .07500   -.05463
  .10000   -.06097
  .12500   -.06612
  .15000   -.07038
  .17500   -.07393
  .20000   -.07690
  .25000   -.08130
  .30000   -.08381
  .35000   -.08484
  .40000   -.08455
  .45000   -.08288
  .50000   -.07970
  .55000   -.07452
  .57500   -.07104
  .60000   -.06701
  .62500   -.06247
  .65000   -.05752
  .67500   -.05226
  .70000   -.04678
  .72500   -.04117
  .75000   -.03553
  .77500   -.02994
  .80000   -.02456
  .82500   -.01953
  .85000   -.01500
  .87500   -.01112
  .90000   -.00805
  .92500   -.00598
  .95000   -.00515
  .97500   -.00589
 1.00000   -.00886
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Lednicer format dat file
Selig format dat file

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Polars for NASA/LANGLEY LS(1)-0421 AIRFOIL (ls421-il)

PlotAirfoilReynolds #NcritMax Cl/CdDescriptionSource 
   ls421-il50,000923.8 at α=10.25°Mach=0 Ncrit=9Xfoil predictionDetails
   ls421-il50,000518.4 at α=10°Mach=0 Ncrit=5Xfoil predictionDetails
   ls421-il100,000933.1 at α=8.5°Mach=0 Ncrit=9Xfoil predictionDetails
   ls421-il100,000530.7 at α=7°Mach=0 Ncrit=5Xfoil predictionDetails
   ls421-il200,000952.4 at α=6.5°Mach=0 Ncrit=9Xfoil predictionDetails
   ls421-il200,000556.4 at α=4.75°Mach=0 Ncrit=5Xfoil predictionDetails
   ls421-il500,000989.5 at α=4.5°Mach=0 Ncrit=9Xfoil predictionDetails
   ls421-il500,000581.5 at α=3°Mach=0 Ncrit=5Xfoil predictionDetails
   ls421-il1,000,0009111.9 at α=3.25°Mach=0 Ncrit=9Xfoil predictionDetails
   ls421-il1,000,000591.2 at α=1.75°Mach=0 Ncrit=5Xfoil predictionDetails
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