Xem Studiomeasured geometryLibrary › Airfoils › Other airfoils ·
Selig S4083 airfoil
What is the exact shape of the Selig S4083 airfoil? · Standard part · basis: Coordinates from the UIUC Airfoil Coordinates Database; thickness, camber and section by Xem Studio
Also called: s4083, Selig S4083 coordinates, Selig S4083 dat, Selig S4083 STEP, Selig S4083 STL, Selig S4083 profile
Exact dimensions. True size, with no printing tolerance added.
- length
- 100.0 mm
- width
- 20.0 mm
- height
- 8.0 mm
Notes
- Selig S4083: Michael Selig (S series). Maximum thickness 8.00 % of chord at 22.6 % chord; maximum camber 3.45 % of chord at 35.5 % chord.
- Coordinates from the UIUC Airfoil Coordinates Database (M. Selig, UIUC Applied Aerodynamics Group), file s4083.dat, titled 'S4083 (8%)'. Thickness and camber are computed by Xem Studio from those points (vertical distance at equal x, linear between points).
- The published trailing edge is sharp, so the section uses it as printed.
- 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.
Selig S4083 airfoil size chart
| parameter | value | source |
|---|---|---|
| Max thickness | 8.00 % chord at 22.6 % chord | computed from the UIUC coordinates |
| Max camber | 3.45 % chord at 35.5 % chord | computed from the UIUC coordinates |
| Published points | 81 (43 upper, 39 lower, shared leading edge) | UIUC coordinates |
| Trailing edge as published | sharp (closed) | UIUC coordinates |
| y at x = 1.25 % chord | upper +1.629 / lower -0.826 % chord | linear between the published points (UIUC coordinates) |
| y at x = 2.5 % chord | upper +2.493 / lower -1.030 % chord | linear between the published points (UIUC coordinates) |
| y at x = 5 % chord | upper +3.743 / lower -1.205 % chord | linear between the published points (UIUC coordinates) |
| y at x = 7.5 % chord | upper +4.653 / lower -1.265 % chord | linear between the published points (UIUC coordinates) |
| y at x = 10 % chord | upper +5.363 / lower -1.256 % chord | linear between the published points (UIUC coordinates) |
| y at x = 15 % chord | upper +6.356 / lower -1.142 % chord | linear between the published points (UIUC coordinates) |
| y at x = 20 % chord | upper +6.963 / lower -0.956 % chord | linear between the published points (UIUC coordinates) |
| y at x = 25 % chord | upper +7.253 / lower -0.742 % chord | linear between the published points (UIUC coordinates) |
| y at x = 30 % chord | upper +7.307 / lower -0.514 % chord | linear between the published points (UIUC coordinates) |
| y at x = 40 % chord | upper +6.941 / lower -0.066 % chord | linear between the published points (UIUC coordinates) |
| y at x = 50 % chord | upper +6.223 / lower +0.327 % chord | linear between the published points (UIUC coordinates) |
| y at x = 60 % chord | upper +5.325 / lower +0.647 % chord | linear between the published points (UIUC coordinates) |
| y at x = 70 % chord | upper +4.318 / lower +0.825 % chord | linear between the published points (UIUC coordinates) |
| y at x = 80 % chord | upper +3.196 / lower +0.720 % chord | linear between the published points (UIUC coordinates) |
| y at x = 90 % chord | upper +1.907 / lower +0.412 % chord | linear between the published points (UIUC coordinates) |
| y at x = 95 % chord | upper +1.139 / lower +0.202 % chord | linear between the published points (UIUC coordinates) |
| Coordinates source | UIUC Airfoil Coordinates Database: s4083.dat ('S4083 (8%)') | UIUC Applied Aerodynamics Group (M. Selig) |
Where the files are
Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.
| UIUC Applied Aerodynamics Group (M. Selig) | UIUC Airfoil Coordinates Database: s4083.dat ('S4083 (8%)') | web | UIUC Airfoil Coordinates Database, public research data; coordinates are facts, cited and linked, not rehosted |
| UIUC Applied Aerodynamics Group (M. Selig) | UIUC Airfoil Coordinates Database (original: Michael Selig (S series)) | web | UIUC Airfoil Coordinates Database, public research data; coordinates are facts, cited and linked, not rehosted |
Free files
★ Free files 1 parts. Xem Studio design: free to use, print and sell things from; not to be republished as files. Xem Studio Design License. index.json
| s4083-airfoil-section-100mm-chord | Selig S4083 section, 100 mm chord × 20 mm span, 80 points from the published coordinates, single trailing-edge point (scale to your chord) | STEP · STL |
https://xemstudio.com/mcp to Claude, ChatGPT, Cursor or any MCP client (free, no account, one minute) and it can look up exact sizes, mating fits and free STEP/STL from every chat.Plain text: sheet.txt · JSON: /api/geometry?object=s4083-airfoil
Fits with
Questions
How thick is the Selig S4083?
Maximum thickness 8.00 % of chord at 22.6 % chord: 8.00 mm on a 100 mm chord (computed from the UIUC coordinates).
How much camber does the Selig S4083 have?
Maximum camber 3.45 % of chord at 35.5 % chord (computed from the UIUC coordinates).
How do I use it for my wing?
Scale the 100 mm section to your chord (e.g. 180 mm chord = 180 % scale), then extrude or loft between root and tip sections. For a tapered wing, scale a root and a tip copy and loft between them.