Airfoil Data
E853

The EPPLER E853 AIRFOIL is a 8.4% chord-thickness airfoil with a maximum camber of 4.2% at 42% 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 -4.2°.

Thin airfoil theory predicts a stall angle near 11.8° and a peak lift-to-drag ratio around 59 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 E853 typically compare it against profiles of similar thickness: GOE 279 (DAIMLER X) AIRFOIL, GOE 401 AIRFOIL, MARSKE PIONEER IA AIRFOIL (NACA 23112/43012A HYBRID), S4096 (designed for the E-flite UMX ASK-21 scale RC sailplane), EPPLER 326 AIRFOIL. The GOE 495 AIRFOIL is another reference profile frequently considered alongside it.