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

Airfoil Comparison

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Airfoil comparison (hq108-il,r140sm-il,tsagi8-il,e180-il,hq1585-il,vr1-il,raf19-il)
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    (hq108-il) HQ 1.0/8 AIRFOIL

Quabeck HQ 1.0/8 R/C sailplane airfoil
Max thickness 8% at 35% chord
Max camber 1% at 50% chord
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    (r140sm-il) R140 12.04% (smoothed)

R140 Quickee 500 airfoil (smoothed)
Max thickness 12% at 39.3% chord
Max camber 0.4% at 39.3% chord
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    (tsagi8-il) TSAGI 8% AIRFOIL

TSAGI 8% airfoil
Max thickness 8% at 30% chord
Max camber 1.3% at 30% chord
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    (e180-il) E180 (8.59%)

Eppler E180 low Reynolds number airfoil
Max thickness 8.6% at 33.5% chord
Max camber 2% at 38.1% chord
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    (hq1585-il) HQ 1.5/8.5 AIRFOIL

Quabeck HQ 1.5/8.5 R/C sailplane airfoil
Max thickness 8.6% at 35% chord
Max camber 1.5% at 50% chord
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    (vr1-il) BOEING-VERTOL VR-1 AIRFOIL

Boeing-Vertol VR-1 rotorcraft airfoil
Max thickness 11% at 35.3% chord
Max camber 1.5% at 43.3% chord
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    (raf19-il) RAF 19 AIRFOIL

RAF-19 airfoil
Max thickness 10.5% at 15% chord
Max camber 10.1% at 40% chord
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Used for printing plan. A4 landscape approx 280mm
Used for printing plan. A4 landscape approx 180mm

Polars for (hq108-il,r140sm-il,tsagi8-il,e180-il,hq1585-il,vr1-il,raf19-il)

PlotAirfoilReynolds #NcritMax Cl/CdDescriptionSource 
   hq108-il50,000933.4 at α=5°Mach=0 Ncrit=9Xfoil predictionDetails
   hq108-il50,000533.3 at α=4.75°Mach=0 Ncrit=5Xfoil predictionDetails
   hq108-il100,000948 at α=4.5°Mach=0 Ncrit=9Xfoil predictionDetails
   hq108-il100,000544.7 at α=4°Mach=0 Ncrit=5Xfoil predictionDetails
   hq108-il200,000962.4 at α=4°Mach=0 Ncrit=9Xfoil predictionDetails
   hq108-il200,000554.6 at α=3.25°Mach=0 Ncrit=5Xfoil predictionDetails
   hq108-il500,000978.6 at α=3.25°Mach=0 Ncrit=9Xfoil predictionDetails
   hq108-il500,000563.9 at α=4°Mach=0 Ncrit=5Xfoil predictionDetails
   hq108-il1,000,000985 at α=2.75°Mach=0 Ncrit=9Xfoil predictionDetails
   hq108-il1,000,000572.2 at α=5.25°Mach=0 Ncrit=5Xfoil predictionDetails
   r140sm-il50,000922.8 at α=5.75°Mach=0 Ncrit=9Xfoil predictionDetails
   r140sm-il50,000529.4 at α=5°Mach=0 Ncrit=5Xfoil predictionDetails
   r140sm-il100,000943 at α=4.5°Mach=0 Ncrit=9Xfoil predictionDetails
   r140sm-il100,000541.4 at α=4.25°Mach=0 Ncrit=5Xfoil predictionDetails
   r140sm-il200,000953.5 at α=4°Mach=0 Ncrit=9Xfoil predictionDetails
   r140sm-il200,000546.5 at α=4°Mach=0 Ncrit=5Xfoil predictionDetails
   r140sm-il500,000962 at α=4°Mach=0 Ncrit=9Xfoil predictionDetails
   r140sm-il500,000553.3 at α=3.75°Mach=0 Ncrit=5Xfoil predictionDetails
   r140sm-il1,000,000971.1 at α=3.75°Mach=0 Ncrit=9Xfoil predictionDetails
   r140sm-il1,000,000559.8 at α=6.75°Mach=0 Ncrit=5Xfoil predictionDetails
   tsagi8-il50,000932.8 at α=5.25°Mach=0 Ncrit=9Xfoil predictionDetails
   tsagi8-il50,000532.5 at α=5°Mach=0 Ncrit=5Xfoil predictionDetails
   tsagi8-il100,000945.3 at α=4.75°Mach=0 Ncrit=9Xfoil predictionDetails
   tsagi8-il100,000544.4 at α=4.5°Mach=0 Ncrit=5Xfoil predictionDetails
   tsagi8-il200,000957.7 at α=4.25°Mach=0 Ncrit=9Xfoil predictionDetails
   tsagi8-il200,000555.4 at α=3.75°Mach=0 Ncrit=5Xfoil predictionDetails
   tsagi8-il500,000972.2 at α=3.75°Mach=0 Ncrit=9Xfoil predictionDetails
   tsagi8-il500,000565.1 at α=3.5°Mach=0 Ncrit=5Xfoil predictionDetails
   tsagi8-il1,000,000976.8 at α=3.5°Mach=0 Ncrit=9Xfoil predictionDetails
   tsagi8-il1,000,000569.7 at α=3.25°Mach=0 Ncrit=5Xfoil predictionDetails
   e180-il50,000935.5 at α=7°Mach=0 Ncrit=9Xfoil predictionDetails
   e180-il50,000536.2 at α=6.75°Mach=0 Ncrit=5Xfoil predictionDetails
   e180-il100,000952.7 at α=6.25°Mach=0 Ncrit=9Xfoil predictionDetails
   e180-il100,000551.8 at α=5.75°Mach=0 Ncrit=5Xfoil predictionDetails
   e180-il200,000971 at α=5.75°Mach=0 Ncrit=9Xfoil predictionDetails
   e180-il200,000566 at α=5°Mach=0 Ncrit=5Xfoil predictionDetails
   e180-il500,000993.7 at α=4.75°Mach=0 Ncrit=9Xfoil predictionDetails
   e180-il500,000582.3 at α=3.75°Mach=0 Ncrit=5Xfoil predictionDetails
   e180-il1,000,0009109.3 at α=4.25°Mach=0 Ncrit=9Xfoil predictionDetails
   e180-il1,000,000591.7 at α=3°Mach=0 Ncrit=5Xfoil predictionDetails
   hq1585-il50,000935.6 at α=5.5°Mach=0 Ncrit=9Xfoil predictionDetails
   hq1585-il50,000535.6 at α=5.25°Mach=0 Ncrit=5Xfoil predictionDetails
   hq1585-il100,000951.4 at α=4.75°Mach=0 Ncrit=9Xfoil predictionDetails
   hq1585-il100,000548.4 at α=4°Mach=0 Ncrit=5Xfoil predictionDetails
   hq1585-il200,000967.2 at α=4°Mach=0 Ncrit=9Xfoil predictionDetails
   hq1585-il200,000558.3 at α=3°Mach=0 Ncrit=5Xfoil predictionDetails
   hq1585-il500,000984.7 at α=3°Mach=0 Ncrit=9Xfoil predictionDetails
   hq1585-il500,000567.3 at α=6.75°Mach=0 Ncrit=5Xfoil predictionDetails
   hq1585-il1,000,000985.3 at α=3.5°Mach=0 Ncrit=9Xfoil predictionDetails
   hq1585-il1,000,000580.4 at α=6.25°Mach=0 Ncrit=5Xfoil predictionDetails
   vr1-il50,000930.6 at α=5°Mach=0 Ncrit=9Xfoil predictionDetails
   vr1-il50,000530 at α=4.75°Mach=0 Ncrit=5Xfoil predictionDetails
   vr1-il100,000946.9 at α=4.25°Mach=0 Ncrit=9Xfoil predictionDetails
   vr1-il100,000544.1 at α=3.75°Mach=0 Ncrit=5Xfoil predictionDetails
   vr1-il200,000963.5 at α=3.5°Mach=0 Ncrit=9Xfoil predictionDetails
   vr1-il200,000553.6 at α=3°Mach=0 Ncrit=5Xfoil predictionDetails
   vr1-il500,000972.8 at α=3°Mach=0 Ncrit=9Xfoil predictionDetails
   vr1-il500,000561.1 at α=6°Mach=0 Ncrit=5Xfoil predictionDetails
   vr1-il1,000,000977.8 at α=2.5°Mach=0 Ncrit=9Xfoil predictionDetails
   vr1-il1,000,000575.6 at α=7°Mach=0 Ncrit=5Xfoil predictionDetails
   raf19-il50,000913.1 at α=3°Mach=0 Ncrit=9Xfoil predictionDetails
   raf19-il50,000532.2 at α=5.25°Mach=0 Ncrit=5Xfoil predictionDetails
   raf19-il100,000944.6 at α=6.5°Mach=0 Ncrit=9Xfoil predictionDetails
   raf19-il100,000548.7 at α=6°Mach=0 Ncrit=5Xfoil predictionDetails
   raf19-il200,000962.4 at α=9.25°Mach=0 Ncrit=9Xfoil predictionDetails
   raf19-il200,000561.8 at α=6.5°Mach=0 Ncrit=5Xfoil predictionDetails
   raf19-il500,000982.2 at α=7°Mach=0 Ncrit=9Xfoil predictionDetails
   raf19-il500,000583.3 at α=6°Mach=0 Ncrit=5Xfoil predictionDetails
   raf19-il1,000,0009104.8 at α=6.5°Mach=0 Ncrit=9Xfoil predictionDetails
   raf19-il1,000,0005103 at α=5.75°Mach=0 Ncrit=5Xfoil predictionDetails
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