Airfoil Data
GOE229

The GOE 229 (MVA H.39) AIRFOIL is a 14.8% chord-thickness airfoil with a maximum camber of 7.4% 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 -7.4°.

Thin airfoil theory predicts a stall angle near 10.6° and a peak lift-to-drag ratio around 72 at typical UAV and light-aircraft Reynolds numbers — useful benchmarks before running a full XFOIL or NeuralFoil polar. The 15% thickness provides structural depth for main-spar placement without excessive drag penalty at moderate speeds.

Designers evaluating the GOE229 typically compare it against profiles of similar thickness: GOE 422 AIRFOIL, DEFIANT CANARD BL20 AIRFOIL, IST-MT1-15, GOE 217 (MVA MK.12) AIRFOIL, GOE 424 AIRFOIL. The M6 (65%) is another reference profile frequently considered alongside it.