Airfoil Data
E344

The EPPLER 344 AIRFOIL is a 11.8% chord-thickness airfoil with a maximum camber of 5.9% at 29% 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 -5.9°.

Thin airfoil theory predicts a stall angle near 11.6° and a peak lift-to-drag ratio around 68 at typical UAV and light-aircraft Reynolds numbers — useful benchmarks before running a full XFOIL or NeuralFoil polar. The 12% thickness provides structural depth for main-spar placement without excessive drag penalty at moderate speeds.

Designers evaluating the E344 typically compare it against profiles of similar thickness: GOE 414 AIRFOIL, EPPLER 431 AIRFOIL, DU 80-176 V1, FX 78-PK-188/20, AH 83-159. The E392 (10.15%) is another reference profile frequently considered alongside it.