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Wing Name: Enzo3 XXS15/2/2024
Calcul Vitesse McCready moyenne
Extra drag loss
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Voile et sellete de competitionG9,81m/s-2Tz2,5m/s(avg Lift)Glide loss0,000
points in glide
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Total Weight in Flight9092,8
cinematic viscosity
1,45E-05Dz-0,5m/s(avg sink)
McCready average speed
0,00km/h
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Height over sea level1000m [7]density1,11kg/m3Bx0km/h
Face wind < 0
Time loss on a 1.5h task
0,0minutes
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Flat Aera19,150m2flat span12,06m
Point loss per task
0points
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Flat Aspect Ratio7,600projecte span9,7m
point loss per competition
0points
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Flat Ratio (Sproj/S)0,847line scale Maverage chord1,587mLegend:
km loss on a 10h XC flight
0km
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Line drag aera SCx0,1490,149projected span16,22m2
Input taken from the wing
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Pilot and Harness drag aera SCx0,114m2wing load4,7kg/m20,4600
Input for polar table and McCready
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extra drag SCx0,000m²
projected wing load
5,5kg/m22%
intermediate calculations
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Average Profile thickness0,167%
proj Aspect ratio
5,81,7Main output
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 profile drag coef Cx00,0120,34
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add Cd by rugosity0,0012m
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Oswald Efficiency0,94
Lift Curve Slope
0,062Cl / °
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reference speed (Variable Area)15m/s
reference speed (Variable area)
54,0km/h
optimum glide ratio ( variable area)
10,57
optimum aera ( varibale area)
15,3m2
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Max Ground Glide Ratio calculation :
Opt speed40,4km/hmax glide12,23Opt LiftCoef0,777
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Polar calculation with Extra Dragwith brake onhand offwith speed bar
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angle of attack in 2D profile (°) ref zeroLift12,3438,5866,0114,8304,0793,547
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angle of attack in finite AR wing18,40812,8058,9647,2036,0825,290
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Cz XFLR5 2D1,150,800,560,450,380,33
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Cz ref wing aera0,970,680,470,3810,320,28
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SCz ref wing aera18,65312,9769,0837,2996,1645,361
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SCx induit1,1280,5460,2680,1730,1230,093
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SCx profile0,3600,2530,2530,2530,2530,253
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TOTAL SCx1,7511,0620,7830,6890,6390,609
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Total SCforce18,73513,0199,1177,3316,1975,395
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Induced Drag (% total)64%51%34%25%19%15%
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Profile Drag (% total)21%24%32%37%40%42%
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Lines Drag (% total)9%14%19%22%23%24%
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Harness+Pilot Drag (% total)7%11%15%17%18%19%
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ExtraDrag SCx0%0%0%0%0%0%
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Speed on trajectory (m/s)920%1104%1319%1471%1600%1715%
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Horizontal Speed (m/s)916%1100%1314%1465%1592%1704%
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Horizontal Speed(km/h)33,039,6147,3152,757,3061,34
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Sink Rate (m/s)-0,86-0,90-1,13-1,38-1,65-1,94
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Air Glide Ratio10,712,211,610,69,68,8
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Ground Glide Ratio10,712,211,610,69,68,8
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Average MacCready Speed (km/h)18,021,423,724,624,824,7
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Reynolds number on average Chord1,01E+061,21E+061,44E+061,61E+061,75E+061,88E+06
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angle finesse5,364,684,935,395,926,48
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angle chord/horizon13,08,14,01,80,2-1,2
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Polar calculation (without ExtraDrag)with brake onhand offwith speed bar
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angle of attack in 2D profile (°) ref zeroLift12,3438,5866,0114,8304,0793,562
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angle of attack in finite AR wing18,40812,8058,9647,2036,0825,313
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Cz (ref wing aera)1,150,800,560,450,380,33
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0,970,680,470,3810,320,28
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SCz18,65312,9769,0837,2996,1645,383
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SCx induit1,1280,5460,2680,1730,1230,094
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SCx profile0,3600,2530,2530,2530,2530,253
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TOTAL SCx (No extra drag !)1,7511,0620,7830,6890,6390,610
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Total SCforce18,73513,0199,1177,3316,1975,418
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Induced Drag (% total)64%51%34%25%19%15%
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Profile Drag (% total)21%24%32%37%40%41%
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Lines Drag (% total)9%14%19%22%23%24%
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Harness+Pilot Drag (% total)7%11%15%17%18%19%
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Speed on trajectory (m/s)920%1104%1319%1471%1600%1711%
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Horizontal Speed (m/s)916%1100%1314%1465%1592%1700%
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Horizontal Speed(km/h)33,039,6147,3152,757,3061,21
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Sink Rate (m/s)-0,86-0,90-1,13-1,38-1,65-1,93
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Air Glide Ratio10,712,211,610,69,68,8
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Ground Glide Ratio10,712,211,610,69,68,8
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Average MacCready Speed (km/h)18,021,423,724,624,824,7
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Reynolds number on average Chord1,01E+061,21E+061,44E+061,61E+061,75E+061,87E+06
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absolute drags
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Induced Drag (daN)533726211815
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Profile Drag (daN)171724303641
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Lines Drag (daN)71014182124
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Harness+Pilot Drag (daN)5811141619
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Extra Drag (daN)000000
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