Airfoil Data
CLARKY
CLARK Y AIRFOIL
Wing Geometry Simulator
The CLARK Y AIRFOIL is a 9.2% chord-thickness airfoil with a maximum camber of 4.6% at 36% chord, suited to general-aviation and UAV wing design. At zero angle of attack the cambered geometry generates positive lift, giving an estimated zero-lift angle of -4.6°.
Thin airfoil theory predicts a stall angle near 11.7° and a peak lift-to-drag ratio around 61 at typical UAV and light-aircraft Reynolds numbers — useful benchmarks before running a full XFOIL or NeuralFoil polar. The slim profile minimises pressure drag at higher speeds but leaves limited spar depth for structural integration.
The CLARKY appears in the wing design of at least 458 documented aircraft, including designs from WACO and Curtiss. Its proven track record across conventional and rotorcraft designs makes it one of the more field-validated profiles in the UIUC database.
Designers evaluating the CLARKY typically compare it against profiles of similar thickness: GOE 184 (MVA H.29) AIRFOIL, WORTMANN FX 60-126 AIRFOIL, EPPLER 67 AIRFOIL, GOE 274 (DAIMLER V) AIRFOIL, GOE 804 (EA 8) AIRFOIL. The GOE 226 (MVA H.36) AIRFOIL is another reference profile frequently considered alongside it.
Aircraft Using the CLARKY Airfoil
AA 65-2 Canario | AA | Clark Y | Constant |
AAMSA Quail Commander | AAMSA | Clark Y | Constant |
AAMSA Sparrow Commander | AAMSA | Clark Y | Constant |
Ace Baby Ace | Ace | Clark Y mod | Constant |
Adcox Student Prince | Adcox | Clark Y | Constant |
Aerocomp Comp Air 10 | Aerocomp | Clark Y mod | Constant |
Aerocomp Comp Air 6 | Aerocomp | Clark Y mod | Constant |
Aerocomp Comp Air 7 | Aerocomp | Clark Y mod | Constant |
Aerocomp Comp Air 8 | Aerocomp | Clark Y mod | Constant |
Aerocomp Comp Monster | Aerocomp | Clark Y mod | Constant |
Aerolites Bearcat | Aerolites | Clark Y | Constant |
Aeronca 50-LA Chief | Aeronca | Clark Y | Constant |
Aeronca 65-C Chief | Aeronca | Clark Y | Constant |
Aeronca 65-CA Super Chief | Aeronca | Clark Y | Constant |
Aeronca 65-LA Chief | Aeronca | Clark Y | Constant |
Aeronca 65-LB Super Chief | Aeronca | Clark Y | Constant |
Aeronca C-1 Cadet | Aeronca | Clark Y | Constant |
Aeronca C-2 | Aeronca | Clark Y | Constant |
Aeronca C-2N Deluxe Scout | Aeronca | Clark Y | Constant |
Aeronca C-3 | Aeronca | Clark Y | Constant |
Wing lofting: 56 of these aircraft taper from CLARKY at the root to a different tip section. Use the Tapered filter to isolate them, then click any tip airfoil link to compare geometries.
Related Airfoils
Engineers evaluating the CLARKY frequently compare it against profiles with comparable geometric constraints. Below are the closest matches based on maximum thickness (9.2%) and max camber (4.6%).