Airfoil Data
GOE693
GOE 693 AIRFOIL
Wing Geometry Simulator
The GOE 693 AIRFOIL is a 9.6% chord-thickness airfoil with a maximum camber of 4.8% at 40% 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 -4.8°.
Thin airfoil theory predicts a stall angle near 11.7° and a peak lift-to-drag ratio around 62 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 GOE693 appears in the wing design of at least 8 documented aircraft, including designs from Industria and Issoire. Its proven track record across conventional and rotorcraft designs makes it one of the more field-validated profiles in the UIUC database.
Designers evaluating the GOE693 typically compare it against profiles of similar thickness: EPPLER 68 AIRFOIL, S4022, MH 104 15.28%, EPPLER E854 AIRFOIL, NACA 65(2)-415. The GOE 176 (ALBATROS 7020) AIRFOIL is another reference profile frequently considered alongside it.
Aircraft Using the GOE693 Airfoil
Industria Aeronautica Romana IS-4 | Industria | Goettingen 549 | Goettingen 693 |
Issoire PIK-3C Kajava | Issoire | Goettingen 549 | Goettingen 693 |
Libis L-22 | Libis | Goettingen 549 | Goettingen 693 |
PIK-13 | PIK-13 | Goettingen 549 | Goettingen 693 |
PIK-3a | PIK-3a | Goettingen 693 | Constant |
PIK-3b | PIK-3b | Goettingen 693 | Constant |
PIK-3c | PIK-3c | Goettingen 549 | Goettingen 693 |
Schempp-Hirth Minimoa | Schempp-Hirth | Goettingen 681 | Goettingen 693/Symmetrical |
Wing lofting: 6 of these aircraft taper from GOE693 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 GOE693 frequently compare it against profiles with comparable geometric constraints. Below are the closest matches based on maximum thickness (9.6%) and max camber (4.8%).