Airfoil Data
N0009SM
NACA-0009 9.0% smoothed
Wing Geometry Simulator
The NACA-0009 9.0% smoothed is a thin 4.5% chord-thickness airfoil with a maximum camber of 2.3% at 31% 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 -2.3°.
Thin airfoil theory predicts a stall angle near 12.0° and a peak lift-to-drag ratio around 48 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 N0009SM appears in the wing design of at least 18 documented aircraft, including designs from EFW and Aero. 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 N0009SM typically compare it against profiles of similar thickness: YS-900, NACA 16009, EPPLER EA 6(-1)-009 AIRFOIL, EH 0.0/9.0, S9032 (9%). The NACA 0010-64 is another reference profile frequently considered alongside it.
Aircraft Using the N0009SM Airfoil
Aero Ever R-17 | Aero | NACA 23012 | NACA 0009 |
Aero Ever R-17b | Aero | NACA 23012 | NACA 0009 |
EFW N-20.01 | EFW | NACA 0011-(4.5)(4.5) | NACA 0009-(4.5)(4.5) |
EFW N-20.02 Arbalete | EFW | NACA 0011-(4.5)(4.5) | NACA 0009-(4.5)(4.5) |
EFW N-20.10 Aiguillon | EFW | NACA 0011-(4.5)(4.5) ? | NACA 0009-(4.5)(4.5) ? |
EFW N-20.20 Harpon | EFW | NACA 0011-(4.5)(4.5) ? | NACA 0009-(4.5)(4.5) ? |
Lazor-Rautenstrach LR-1 | Lazor-Rautenstrach | NACA 0012 | NACA 0009 |
MSrE M-30 Fergeteg | MSrE | NACA 23012 | NACA 0009 |
Pashinin I-21 | Pashinin | NACA 0012 | NACA 0009 |
Slingsby T.25 Gull 4 | Slingsby | Goettingen 549 | NACA 0009 |
Slingsby T.26 Kite 2 | Slingsby | NACA 2412 | NACA 0009 |
SNCASE SE.2100 | SNCASE | STAe 230 (Abrial-3) | NACA 0009 |
SSVV Milano EC.40 Innominato | SSVV | NACA 65-620 | NACA 0009 |
American Helicopter Company XA-5 | American | NACA 0012 | NACA 0009 |
Bristol 171 Mk 2 | Bristol | NACA 0015 | NACA 0009 |
Bristol 173 | Bristol | NACA 0015 | NACA 0009 |
de Lackner DH-4 | de | NACA 0018 | NACA 0009 |
Vertol 76 VZ-2 | Vertol | NACA 0009 mod | Constant |
Wing lofting: 17 of these aircraft taper from N0009SM 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 N0009SM frequently compare it against profiles with comparable geometric constraints. Below are the closest matches based on maximum thickness (4.5%) and max camber (2.3%).