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S4180-098-84 (s4180-il)

S4180-098-84 - Selig S4180 low Reynolds number airfoil


Airfoil s4180-il
Details Dat file Parser  
(s4180-il) S4180-098-84
Selig S4180 low Reynolds number airfoil
Max thickness 9.8% at 26.1% chord.
Max camber 4% at 39.4% chord
Source UIUC Airfoil Coordinates Database
Source dat file
The dat file is in Selig format
  S4180-098-84
  1.00000  0.0
  0.99684  0.00036
  0.98746  0.00156
  0.97208  0.00376
  0.95106  0.00702
  0.92482  0.01132
  0.89384  0.01661
  0.85861  0.02279
  0.81970  0.02971
  0.77768  0.03718
  0.73313  0.04497
  0.68660  0.05280
  0.63859  0.06041
  0.58961  0.06761
  0.54018  0.07420
  0.49082  0.07996
  0.44203  0.08471
  0.39426  0.08828
  0.34797  0.09049
  0.30354  0.09117
  0.26125  0.09017
  0.22126  0.08751
  0.18382  0.08329
  0.14915  0.07770
  0.11756  0.07095
  0.08934  0.06322
  0.06475  0.05468
  0.04398  0.04553
  0.02725  0.03596
  0.01466  0.02605
  0.00607  0.01606
  0.00129  0.00643
  0.00016 -0.00200
  0.00377 -0.00814
  0.01306 -0.01234
  0.02779 -0.01523
  0.04791 -0.01669
  0.07351 -0.01680
  0.10453 -0.01584
  0.14066 -0.01416
  0.18140 -0.01201
  0.22624 -0.00956
  0.27460 -0.00696
  0.32586 -0.00432
  0.37937 -0.00177
  0.43446  0.00061
  0.49043  0.00274
  0.54659  0.00456
  0.60221  0.00602
  0.65661  0.00709
  0.70909  0.00775
  0.75899  0.00801
  0.80565  0.00787
  0.84849  0.00736
  0.88694  0.00652
  0.92048  0.00541
  0.94864  0.00407
  0.97094  0.00263
  0.98704  0.00131
  0.99676  0.00035
  1.00001 -0.00000
Dat file parser warnings
  • Line 62 - X value too large but included: 1.00001 -0.00000
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Polars for S4180-098-84 (s4180-il)

PlotAirfoilReynolds #NcritMax Cl/CdDescriptionSource 
   s4180-il50,000928.3 at α=9.5°Mach=0 Ncrit=9Xfoil predictionDetails
   s4180-il50,000537.7 at α=7°Mach=0 Ncrit=5Xfoil predictionDetails
   s4180-il100,000955.1 at α=8.5°Mach=0 Ncrit=9Xfoil predictionDetails
   s4180-il100,000558.8 at α=7°Mach=0 Ncrit=5Xfoil predictionDetails
   s4180-il200,000978.7 at α=7.25°Mach=0 Ncrit=9Xfoil predictionDetails
   s4180-il200,000578.7 at α=6.25°Mach=0 Ncrit=5Xfoil predictionDetails
   s4180-il500,0009110.5 at α=6.25°Mach=0 Ncrit=9Xfoil predictionDetails
   s4180-il500,0005104.4 at α=5.25°Mach=0 Ncrit=5Xfoil predictionDetails
   s4180-il1,000,0009133.9 at α=5.5°Mach=0 Ncrit=9Xfoil predictionDetails
   s4180-il1,000,0005122.6 at α=4.5°Mach=0 Ncrit=5Xfoil predictionDetails
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