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Your Reynold number range is 50,000 to 1,000,000. (set)

Airfoil Comparison

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Airfoil comparison (dh4009sm-il,defcnd2-il,b707a-il,n5h20-il,r1046-il)
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    (dh4009sm-il) dh4009sm

Dale House DH4009 (smoothed) used on the Storm R/C aerobatic aircraft
Max thickness 8.9% at 41.6% chord
Max camber 0.2% at 9.6% chord
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    (defcnd2-il) DEFIANT CANARD BL110 AIRFOIL

Rutan DEFIANT canard BL110 airfoil
Max thickness 14.7% at 28.6% chord
Max camber 3.8% at 28.6% chord
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    (b707a-il) BOEING 707 .08 SPAN AIRFOIL

Boeing Commercial Airplane Company model 707 airfoils
Max thickness 11.4% at 24% chord
Max camber 0.2% at 6% chord
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    (n5h20-il) NACA 5-H-20 AIRFOIL

NACA 5-H-20 rotorcraft airfoil
Max thickness 19.9% at 40% chord
Max camber 4.5% at 40% chord
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    (r1046-il) RONCZ 1046 VOYAGER CANARD AIRFOIL

Roncz 1046 Voyager canard airfoil
Max thickness 18.1% at 38% chord
Max camber 6.7% at 42% chord
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Used for printing plan. A4 landscape approx 280mm
Used for printing plan. A4 landscape approx 180mm

Polars for (dh4009sm-il,defcnd2-il,b707a-il,n5h20-il,r1046-il)

PlotAirfoilReynolds #NcritMax Cl/CdDescriptionSource 
   dh4009sm-il50,000919.4 at α=4.25°Mach=0 Ncrit=9Xfoil predictionDetails
   dh4009sm-il50,000524.2 at α=3.25°Mach=0 Ncrit=5Xfoil predictionDetails
   dh4009sm-il100,000927.6 at α=3°Mach=0 Ncrit=9Xfoil predictionDetails
   dh4009sm-il100,000531.7 at α=2.75°Mach=0 Ncrit=5Xfoil predictionDetails
   dh4009sm-il200,000940.3 at α=2.5°Mach=0 Ncrit=9Xfoil predictionDetails
   dh4009sm-il200,000534.6 at α=2.5°Mach=0 Ncrit=5Xfoil predictionDetails
   dh4009sm-il500,000948.1 at α=2.5°Mach=0 Ncrit=9Xfoil predictionDetails
   dh4009sm-il500,000542.1 at α=5°Mach=0 Ncrit=5Xfoil predictionDetails
   dh4009sm-il1,000,000951.8 at α=2°Mach=0 Ncrit=9Xfoil predictionDetails
   dh4009sm-il1,000,000553.4 at α=5.75°Mach=0 Ncrit=5Xfoil predictionDetails
   defcnd2-il50,00098.4 at α=0.75°Mach=0 Ncrit=9Xfoil predictionDetails
   defcnd2-il50,000528.3 at α=5°Mach=0 Ncrit=5Xfoil predictionDetails
   defcnd2-il100,000941.7 at α=3.5°Mach=0 Ncrit=9Xfoil predictionDetails
   defcnd2-il100,000547.9 at α=7.5°Mach=0 Ncrit=5Xfoil predictionDetails
   defcnd2-il200,000964.5 at α=7°Mach=0 Ncrit=9Xfoil predictionDetails
   defcnd2-il200,000564.5 at α=7.5°Mach=0 Ncrit=5Xfoil predictionDetails
   defcnd2-il500,000989.6 at α=7°Mach=0 Ncrit=9Xfoil predictionDetails
   defcnd2-il500,000589.6 at α=8.75°Mach=0 Ncrit=5Xfoil predictionDetails
   defcnd2-il1,000,0009117.2 at α=8.25°Mach=0 Ncrit=9Xfoil predictionDetails
   defcnd2-il1,000,0005115 at α=7.25°Mach=0 Ncrit=5Xfoil predictionDetails
   b707a-il50,000916.3 at α=3.25°Mach=0 Ncrit=9Xfoil predictionDetails
   b707a-il50,000520.7 at α=6°Mach=0 Ncrit=5Xfoil predictionDetails
   b707a-il100,000926.4 at α=6.75°Mach=0 Ncrit=9Xfoil predictionDetails
   b707a-il100,000532.2 at α=7.75°Mach=0 Ncrit=5Xfoil predictionDetails
   b707a-il200,000943.1 at α=8.5°Mach=0 Ncrit=9Xfoil predictionDetails
   b707a-il200,000543.6 at α=8.75°Mach=0 Ncrit=5Xfoil predictionDetails
   b707a-il500,000959.1 at α=7.5°Mach=0 Ncrit=9Xfoil predictionDetails
   b707a-il500,000552.4 at α=8.25°Mach=0 Ncrit=5Xfoil predictionDetails
   b707a-il1,000,000964.4 at α=8°Mach=0 Ncrit=9Xfoil predictionDetails
   b707a-il1,000,000559.4 at α=9.25°Mach=0 Ncrit=5Xfoil predictionDetails
   n5h20-il50,00093.5 at α=9.25°Mach=0 Ncrit=9Xfoil predictionDetails
   n5h20-il50,00057.1 at α=9.5°Mach=0 Ncrit=5Xfoil predictionDetails
   n5h20-il100,000917 at α=15.75°Mach=0 Ncrit=9Xfoil predictionDetails
   n5h20-il100,000514.8 at α=14.25°Mach=0 Ncrit=5Xfoil predictionDetails
   n5h20-il200,000925.4 at α=13°Mach=0 Ncrit=9Xfoil predictionDetails
   n5h20-il200,000534.1 at α=4.5°Mach=0 Ncrit=5Xfoil predictionDetails
   n5h20-il500,000978.6 at α=7.5°Mach=0 Ncrit=9Xfoil predictionDetails
   n5h20-il500,000556.8 at α=5.75°Mach=0 Ncrit=5Xfoil predictionDetails
   n5h20-il1,000,000985.4 at α=7.25°Mach=0 Ncrit=9Xfoil predictionDetails
   n5h20-il1,000,000575.4 at α=5.25°Mach=0 Ncrit=5Xfoil predictionDetails
   r1046-il50,00094.4 at α=12.25°Mach=0 Ncrit=9Xfoil predictionDetails
   r1046-il50,00056.9 at α=12.5°Mach=0 Ncrit=5Xfoil predictionDetails
   r1046-il100,000913 at α=19°Mach=0 Ncrit=9Xfoil predictionDetails
   r1046-il100,000520.5 at α=1°Mach=0 Ncrit=5Xfoil predictionDetails
   r1046-il200,000926.5 at α=1.25°Mach=0 Ncrit=9Xfoil predictionDetails
   r1046-il200,000554.2 at α=5.75°Mach=0 Ncrit=5Xfoil predictionDetails
   r1046-il500,0009101.4 at α=10°Mach=0 Ncrit=9Xfoil predictionDetails
   r1046-il500,0005108.1 at α=7.5°Mach=0 Ncrit=5Xfoil predictionDetails
   r1046-il1,000,0009148.8 at α=9°Mach=0 Ncrit=9Xfoil predictionDetails
   r1046-il1,000,0005149.6 at α=8°Mach=0 Ncrit=5Xfoil predictionDetails
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