Airfoil Data
GOE269

The GOE 269 AIRFOIL is a 8.2% chord-thickness airfoil with a maximum camber of 4.1% 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 -4.1°.

Thin airfoil theory predicts a stall angle near 11.8° and a peak lift-to-drag ratio around 58 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 GOE269 appears in the wing design of at least 1 documented aircraft — notably by Rumpler. Its proven track record across rotorcraft designs makes it one of the more field-validated profiles in the UIUC database.

Designers evaluating the GOE269 typically compare it against profiles of similar thickness: E387, GOE 600 AIRFOIL, GOE 376 AIRFOIL, S1014, SD6080 (9.2%). The NASA LRN 1015 (NASA TM 102840) is another reference profile frequently considered alongside it.