Airfoil Data
GOE436

The GOE 436 AIRFOIL is a 9.3% chord-thickness airfoil with a maximum camber of 4.6% 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 -4.6°.

Thin airfoil theory predicts a stall angle near 11.7° and a peak lift-to-drag ratio around 61 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 GOE436 appears in the wing design of at least 68 documented aircraft, including designs from Short and Boeing. 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 GOE436 typically compare it against profiles of similar thickness: GOE 438 AIRFOIL, GOE 287 AIRFOIL, NASA NLF(1)-0115, MH 92 15.49%, CAL2263m. The EPPLER 434 AIRFOIL is another reference profile frequently considered alongside it.