Airfoil Data
E1212
EPPLER E1212 AIRFOIL
Wing Geometry Simulator
The EPPLER E1212 AIRFOIL is a 11.8% chord-thickness airfoil with a maximum camber of 5.9% at 27% 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.
The E1212 appears in the wing design of at least 4 documented aircraft, including designs from QAC and Rutan. Its proven track record across canard designs makes it one of the more field-validated profiles in the UIUC database.
Designers evaluating the E1212 typically compare it against profiles of similar thickness: FX 78-PK-188/20, FX 84-W-150, DU 80-176 V1, Curtis C-72, GOE 431 AIRFOIL. The GOE 314 (HANSA-BRANDENBURG) AIRFOIL is another reference profile frequently considered alongside it.
Aircraft Using the E1212 Airfoil
QAC Q2 | QAC | GU25-5(11)8 | Eppler 1212 |
QAC Q200 | QAC | NASA LS(1)-0417MOD | Eppler 1212 |
Rutan 54/QAC Quickie | Rutan | GU25-5(11)8 | Eppler 1212 |
Viking Dragonfly | Viking | GU25-5(11)8 mod | Eppler 1212 |
Wing lofting: 4 of these aircraft taper from E1212 at the root to a different tip section. Use the Tapered filter to isolate them, then click any tip airfoil link to compare geometries.
Related Airfoils
Engineers evaluating the E1212 frequently compare it against profiles with comparable geometric constraints. Below are the closest matches based on maximum thickness (11.8%) and max camber (5.9%).