Airfoil Data
GOE549

The GOE 549 AIRFOIL is a 11.4% chord-thickness airfoil with a maximum camber of 5.7% at 30% 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 -5.7°.

Thin airfoil theory predicts a stall angle near 11.6° and a peak lift-to-drag ratio around 67 at typical UAV and light-aircraft Reynolds numbers — useful benchmarks before running a full XFOIL or NeuralFoil polar. The 11% thickness provides structural depth for main-spar placement without excessive drag penalty at moderate speeds.

The GOE549 appears in the wing design of at least 89 documented aircraft, including designs from DFS and Schleicher. 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 GOE549 typically compare it against profiles of similar thickness: GOE 758 AIRFOIL, EPPLER 553 AIRFOIL, EPPLER 49 AIRFOIL, NASA NLF(1)-0215F, FX 78-K-140/20. The S1210 12% is another reference profile frequently considered alongside it.