Airfoil Data
FX63143

The FX 63-143 AIRFOIL is a 10.2% chord-thickness airfoil with a maximum camber of 5.1% at 34% 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 -5.1°.

Thin airfoil theory predicts a stall angle near 11.7° and a peak lift-to-drag ratio around 64 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.

Designers evaluating the FX63143 typically compare it against profiles of similar thickness: FX 75-141, NACA M20 AIRFOIL, GOE 164 (MVA MK.10) AIRFOIL, EPPLER 542 AIRFOIL, GOE 575 AIRFOIL. The BOEING-VERTOL VR-12 AIRFOIL is another reference profile frequently considered alongside it.