NACA 23009 airfoil — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/naca-23009-airfoil/  (sheet CC BY 4.0; files Xem Studio Design License, https://xemstudio.com/license/)
Basis: Computed from the NACA equations (Report 460 / Report 610, restated in NASA TM-4741)
Catalog version: 2026-10-20

Overall (mm): length 100.0, width 20.0, height 9.0
- NACA 23009: 5-digit 230 mean line (design lift coefficient 0.3, camber peak at 15 % chord), 9 % thick.
- NACA 5-digit 230xx: '2' × 3/2 = design lift coefficient 0.3; '30' = camber peak at 15 % chord on a simple mean line; last two digits = maximum thickness in % of chord (NACA Report 610; TM-4741).
- Ordinates are in % of chord from the leading edge, computed from the published equations with the closed-trailing-edge thickness coefficient (−0.1036, as in NASA TM-4741). The original reports use an open trailing edge (−0.1015); the difference is under 0.03 % of chord near the trailing edge.
- The file is a 100 mm chord section, 20 mm deep: scale it uniformly to your chord, or import the STEP and sweep or loft it into a wing. Thickness scales with chord; the shape is the same at any size.

x (% chord)  upper x  upper y  lower x  lower y
0  0.000  0.000  0.000  0.000
1.25  0.885  1.729  1.615  -1.016
2.5  2.062  2.577  2.938  -1.246
5  4.570  3.786  5.430  -1.476
7.5  7.163  4.623  7.837  -1.640
10  9.784  5.207  10.216  -1.804
15  15.000  5.847  15.000  -2.170
20  20.095  6.069  19.905  -2.535
25  25.098  6.111  24.902  -2.798
30  30.099  6.045  29.901  -2.954
40  40.096  5.674  39.904  -3.024
50  50.088  5.068  49.912  -2.859
60  60.075  4.293  59.925  -2.526
70  70.060  3.387  69.940  -2.062
80  80.043  2.370  79.957  -1.486
90  90.023  1.244  89.977  -0.803
95  95.012  0.638  94.988  -0.417
100  100.000  -0.000  100.000  0.000

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- NACA (NASA Technical Reports Server): Report 460: The characteristics of 78 related airfoil sections from tests in the variable-density wind tunnel (Jacobs, Ward, Pinkerton, 1933) — web — Publisher's page; dimensions are facts — https://ntrs.nasa.gov/citations/19930091108
- NASA: TM-4741: Computer program to obtain ordinates for NACA airfoils (Ladson, Brooks, Hill, Sproles, 1996) — web — Publisher's page; dimensions are facts — https://www.pdas.com/refs/tm4741.pdf

Free files (Xem Studio Design License, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/naca-23009-airfoil/index.json
API: https://xemstudio.com/api/geometry?object=naca-23009-airfoil