Airfoil Data
FX71L150
FX 71-L-150/30 AIRFOIL
Wing Geometry Simulator
The FX 71-L-150/30 AIRFOIL is a thin 7.5% chord-thickness airfoil with a maximum camber of 3.8% at 34% chord, suited to high-speed UAVs, sailplane tip sections, and propeller blade design. At zero angle of attack the cambered geometry generates positive lift, giving an estimated zero-lift angle of -3.8°.
Thin airfoil theory predicts a stall angle near 11.8° and a peak lift-to-drag ratio around 56 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.
The FX71L150 appears in the wing design of at least 3 documented aircraft, including designs from Akaflieg and Celair. Its proven track record across canard designs makes it one of the more field-validated profiles in the UIUC database.
Designers evaluating the FX71L150 typically compare it against profiles of similar thickness: NACA 16-015, E475 (15.01%), FX 71-L-150/30 AIRFOIL, D.G.A. 1138, GOE 767 AIRFOIL. The FX 71-L-150/25 AIRFOIL is another reference profile frequently considered alongside it.
Aircraft Using the FX71L150 Airfoil
Akaflieg Munchen Mu 28 | Akaflieg | Wortmann FX 71-L-150/20 | Constant |
Celair GA-1 Celstar | Celair | Wortmann FX 71-L-150/25 | Constant |
Steinleher/Huber SH-2H | Steinleher/Huber | Wortmann FX 71-L-150/20 | Constant |
Related Airfoils
Engineers evaluating the FX71L150 frequently compare it against profiles with comparable geometric constraints. Below are the closest matches based on maximum thickness (7.5%) and max camber (3.8%).