# Centaur D 3D model

> Shape built from published dimensions and pictures; details simplified.

Free 3D model of Centaur D, a rocket stage, built from published dimensions by Space Radar. 19,216 triangles, 118 kB glTF, MIT.

- **Class:** Rockets and stages
- **Mission:** Launch vehicles
- **Triangles:** 19,216
- **File:** centaur-d.glb, 118 kB, glTF 2.0 binary (meshopt)
- **Look:** Physically based
- **Size:** 9.6 m across
- **Made:** Built from dimensions
- **Added:** 2026-10-27
- **NORAD:** 694
- **Download:** https://raw.githubusercontent.com/Sara-Managed-Projects/space-radar/main/site/models/centaur-d.glb
- **Mirror:** https://git.sara-agent.org/sara-projects/space-radar/raw/branch/main/site/models/centaur-d.glb
- **Viewer:** https://www.spaceradar.ai/model/?id=centaur-d
- **On the live map:** https://www.spaceradar.ai/#at=sat-694
- **Licence:** MIT (https://github.com/Sara-Managed-Projects/space-radar/blob/main/LICENSE)
- **Credit:** Centaur D 3D model by Space Radar (spaceradar.ai), MIT License

Canonical: https://models.spaceradar.ai/centaur-d/

## How it was made

Built in code from published dimensions and photographs, with no image-to-3D generator and no one else’s mesh. 3D model: built by Space Radar from published dimensions; compared with NASA's and SDASM's photographs of Centaur D (public domain, no restrictions).

built by this project in code (tools/stage-builder/, release 1.4.0 stage r14-m1: stagelib.py and one function a stage in stages.py); no image-to-3D model was used and no published mesh: none of NASA 3D Resources' 1 583 paths is this stage and a web search found no agency or operator model of it (read 2026-10-26)

## Dimensions

- Length: 9.6 m
- Diameter: 3.05 m

Source: NASA NTRS 19750004937, 'Titan IIIE/Centaur D-1T Systems Summary' (Convair/Martin Marietta, 1973), as Wikipedia, 'Centaur (rocket stage)' quotes it, read 2026-10-26: Centaur D-1T 'Diameter 10 ft', 'Length 31.5 ft', two RL10A-3-3, four 6 lbf attitude thrusters. The Centaur D of the Atlas-Centaur is the same 10 ft tank (the 1963 AC-2 stage is shorter and is drawn with this file; NOT CITED: its exact length). OURS: the bells (1.0 m exit, 1.55 m long, read off GRC-1964-C-71099 against the 3.05 m tank), the doubler tabs, the forward truss and boxes

## References

- [Centaur 6A Rocket in the Space Power Chambers Shop Area (GRC-1964-C-71099)](https://commons.wikimedia.org/wiki/File:Centaur_6A_Rocket_in_the_Space_Power_Chambers_Shop_Area_(GRC-1964-C-71099).jpg), NASA Lewis Research Center (Public domain (NASA; Commons LicenseShortName, read 2026-10-26))
- [Centaur 1964 71100L](https://commons.wikimedia.org/wiki/File:Centaur_1964_71100L.jpg), NASA (Public domain (NASA NIX; Commons LicenseShortName, read 2026-10-26))
- [Centaur Removal From Transporter into Work Stand at VPF](https://commons.wikimedia.org/wiki/File:Centaur_Removal_From_Transporter_into_Work_Stand_at_VPF.jpg), SDASM Archives (No restrictions (SDASM Archives; Commons LicenseShortName, read 2026-10-26))
- [1965 Typical Atlas Centaur Stages](https://commons.wikimedia.org/wiki/File:1965_Typical_Atlas_Centaur_Stages.jpg), SDASM Archives (No restrictions (SDASM Archives; Commons LicenseShortName, read 2026-10-26))