Airfoil Data
S4022

The S4022 is a 9.6% chord-thickness airfoil with a maximum camber of 4.8% at 39% 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 -4.8°.

Thin airfoil theory predicts a stall angle near 11.7° and a peak lift-to-drag ratio around 62 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.

Designers evaluating the S4022 typically compare it against profiles of similar thickness: EPPLER 68 AIRFOIL, MH 104 15.28%, GOE 693 AIRFOIL, EPPLER E854 AIRFOIL, NACA 65(2)-415. The TH 25816 HALE AIRFOIL is another reference profile frequently considered alongside it.