Airfoil Data
DU-80-141

The DU 80-141 is a 9.8% chord-thickness airfoil with a maximum camber of 4.9% at 33% 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 -4.9°.

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 slim profile minimises pressure drag at higher speeds but leaves limited spar depth for structural integration.

Designers evaluating the DU-80-141 typically compare it against profiles of similar thickness: E385 (8.41%), EPPLER 546 AIRFOIL, BOEING 106 AIRFOIL, AH 79-K-135/20 B, E216 (10.4%). The E211 (10.96%) is another reference profile frequently considered alongside it.