Airfoil Data
E502
EPPLER 502 AIRFOIL
Wing Geometry Simulator
The EPPLER 502 AIRFOIL is a 9.3% chord-thickness airfoil with a maximum camber of 4.6% at 43% 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 -4.6°.
Thin airfoil theory predicts a stall angle near 11.7° and a peak lift-to-drag ratio around 61 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 E502 appears in the wing design of at least 2 documented aircraft, including designs from LFU and Rhein-Flugzeugbau. Its proven track record across rotorcraft designs makes it one of the more field-validated profiles in the UIUC database.
Designers evaluating the E502 typically compare it against profiles of similar thickness: EPPLER 340 AIRFOIL, BOEING VERTOL V43012-1.58 AIRFOIL, TRAINER60, EPPLER 625 AIRFOIL, US1000ROOT. The Dormoy is another reference profile frequently considered alongside it.
Aircraft Using the E502 Airfoil
LFU 205 | LFU | Eppler 502 (15.72%) | Constant |
Rhein-Flugzeugbau Fantrainer | Rhein-Flugzeugbau | Eppler 502 (15.7%) | Constant |
Design wings in your spreadsheet
AeroSheet loads E502 airfoils directly into Google Sheets. Polars, 3D splines, Fusion 360 export, without leaving your spreadsheet.
Install in Google Sheets coming soonRelated Airfoils
Engineers evaluating the E502 frequently compare it against profiles with comparable geometric constraints. Below are the closest matches based on maximum thickness (9.3%) and max camber (4.6%).
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