Airfoil Data
FX79K144

The WORTMANN FX 79-K-144/17 AIRFOIL is a 10.0% chord-thickness airfoil with a maximum camber of 5.0% at 43% 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 -5.0°.

Thin airfoil theory predicts a stall angle near 11.7° and a peak lift-to-drag ratio around 63 at typical UAV and light-aircraft Reynolds numbers — useful benchmarks before running a full XFOIL or NeuralFoil polar. The 10% thickness provides structural depth for main-spar placement without excessive drag penalty at moderate speeds.

The FX79K144 appears in the wing design of at least 1 documented aircraft — notably by Masak. Its proven track record across rotorcraft designs makes it one of the more field-validated profiles in the UIUC database.

Designers evaluating the FX79K144 typically compare it against profiles of similar thickness: EPPLER 334 AIRFOIL, MH 81 13%, AH 79-K-143/18, S4233-136-84, GOE 81 AIRFOIL. The FX 79-L-120 is another reference profile frequently considered alongside it.