Airfoil Data
S9037
S9037 (9%)
Wing Geometry Simulator
The S9037 (9%) is a thin 7.9% chord-thickness airfoil with a maximum camber of 3.9% at 33% chord, suited to high-speed UAVs, sailplane tip sections, and propeller blade design. At zero angle of attack the cambered geometry generates positive lift, giving an estimated zero-lift angle of -3.9°.
Thin airfoil theory predicts a stall angle near 11.8° and a peak lift-to-drag ratio around 57 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.
Designers evaluating the S9037 typically compare it against profiles of similar thickness: HQ 3.0/10 AIRFOIL, NACA 2412, FX60-100 10.0% smoothed, HQ 3.5/9 AIRFOIL, RUTAN CANARD AIRFOIL. The GOE 331 (PFALZ 60) AIRFOIL is another reference profile frequently considered alongside it.
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Related Airfoils
Engineers evaluating the S9037 frequently compare it against profiles with comparable geometric constraints. Below are the closest matches based on maximum thickness (7.9%) and max camber (3.9%).
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