Airfoil Comparison
Select airfoils from the airfoil database or add your own airfoils and compare the airfoil shape and lift/drag polars.
| Open full size plan in new window | Open paginated plan in new window | |
| Download PDF file | SVG image as text file | |
| Clear all | ||
(hq2195-il) HQ 2.1/9.5 AIRFOIL | Quabeck HQ 2.1/9.5 R/C sailplane airfoil Max thickness 9.5% at 35% chord Max camber 2.1% at 55% chord | Remove Airfoil details Airfoil plotter |
(hs1404-il) HAM-STD HS1-404 AIRFOIL | HS1 family of prop airfoils from US Patent No. 4 Max thickness 4% at 18% chord Max camber 3.1% at 46% chord | Remove Airfoil details Airfoil plotter |
Drawing Options
Polars for (hq2195-il,hs1404-il)
| Plot | Airfoil | Reynolds # | Ncrit | Max Cl/Cd | Description | Source | |
|---|---|---|---|---|---|---|---|
| hq2195-il | 50,000 | 9 | 37.3 at α=6° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| hq2195-il | 50,000 | 5 | 37.6 at α=5.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| hq2195-il | 100,000 | 9 | 55.4 at α=5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| hq2195-il | 100,000 | 5 | 52.6 at α=4.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| hq2195-il | 200,000 | 9 | 74.5 at α=4° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| hq2195-il | 200,000 | 5 | 67.5 at α=3.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| hq2195-il | 500,000 | 9 | 96.2 at α=3° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| hq2195-il | 500,000 | 5 | 79 at α=4.5° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| hq2195-il | 1,000,000 | 9 | 101 at α=4.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| hq2195-il | 1,000,000 | 5 | 87 at α=5.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| hs1404-il | 50,000 | 9 | 42.1 at α=4.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| hs1404-il | 50,000 | 5 | 42.5 at α=4° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| hs1404-il | 100,000 | 5 | 59.4 at α=3.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| hs1404-il | 200,000 | 9 | 84.5 at α=3.25° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| hs1404-il | 200,000 | 5 | 78.6 at α=2.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| hs1404-il | 500,000 | 9 | 114.7 at α=2.5° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| hs1404-il | 500,000 | 5 | 102.2 at α=1.75° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| hs1404-il | 1,000,000 | 9 | 134.6 at α=1.75° | Mach=0 Ncrit=9 | Xfoil prediction | Details | |
| hs1404-il | 1,000,000 | 5 | 113.3 at α=1.25° | Mach=0 Ncrit=5 | Xfoil prediction | Details | |
| Reynolds number calculator | |||||||