Airfoil Data
GOE481A

The GOE 481A AIRFOIL is a 12.9% chord-thickness airfoil with a maximum camber of 6.4% at 39% chord, suited to high-lift UAV wings, RC sailplanes, and low-Reynolds-number slow-flyers. At zero angle of attack the cambered geometry generates positive lift, giving an estimated zero-lift angle of -6.4°.

Thin airfoil theory predicts a stall angle near 11.3° and a peak lift-to-drag ratio around 70 at typical UAV and light-aircraft Reynolds numbers — useful benchmarks before running a full XFOIL or NeuralFoil polar. The 13% thickness provides structural depth for main-spar placement without excessive drag penalty at moderate speeds.

Designers evaluating the GOE481A typically compare it against profiles of similar thickness: GOE 481 AIRFOIL, WORTMANN FX 3 AIRFOIL, NACA 1-H-15 AIRFOIL, EPPLER 584 AIRFOIL, DAE-11 AIRFOIL. The GOE 444 AIRFOIL is another reference profile frequently considered alongside it.