# Falcon 9 second stage 3D model

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

Free 3D model of Falcon 9 second stage, a rocket stage, built from published dimensions by Space Radar. 16,060 triangles, 84 kB glTF, MIT.

- **Class:** Rockets and stages
- **Mission:** Launch vehicles
- **Triangles:** 16,060
- **File:** falcon9-stage2.glb, 84 kB, glTF 2.0 binary (meshopt)
- **Look:** Physically based
- **Size:** 14 m across
- **Made:** Built from dimensions
- **Added:** 2026-10-27
- **Download:** https://raw.githubusercontent.com/Sara-Managed-Projects/space-radar/main/site/models/falcon9-stage2.glb
- **Mirror:** https://git.sara-agent.org/sara-projects/space-radar/raw/branch/main/site/models/falcon9-stage2.glb
- **Viewer:** https://www.spaceradar.ai/model/?id=falcon9-stage2
- **Licence:** MIT (https://github.com/Sara-Managed-Projects/space-radar/blob/main/LICENSE)
- **Credit:** Falcon 9 second stage 3D model by Space Radar (spaceradar.ai), MIT License

Canonical: https://models.spaceradar.ai/falcon9-stage2/

## 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 SpaceX's CC0 photographs and Steve Jurvetson's CC BY 2.0 photographs of the stage.

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: 13.8 m
- Diameter: 3.7 m

Source: Wikipedia, 'Falcon 9' (https://en.wikipedia.org/wiki/Falcon_9), second-stage table read 2026-10-26: 'Height 13.8 m', 'Diameter 3.7 m', 'Empty mass 3,900 kg'; aluminium-lithium friction-stir-welded tank 'a shorter version of the first stage tank'. OURS: the Merlin Vacuum's bell (2.7 m exit, read off the factory photograph against the 3.7 m tank), where the black engine section ends, the raceway and pods

## References

- [Falcon 9 second stage fuel tank (Steve Jurvetson, Flickr)](https://commons.wikimedia.org/wiki/File:Falcon_9_second_stage_fuel_tank.jpg), Steve Jurvetson (CC BY 2.0 (Commons LicenseShortName, read 2026-10-26); looked at, nothing taken from it)
- [Merlin nozzle (Steve Jurvetson, Flickr)](https://commons.wikimedia.org/wiki/File:Merlin_nozzle_4105129088_9659a4df4e_o.jpg), Steve Jurvetson (CC BY 2.0 (Commons LicenseShortName, read 2026-10-26); looked at, nothing taken from it)
- [THAICOM 8 (27182484081)](https://commons.wikimedia.org/wiki/File:THAICOM_8_(27182484081).jpg), SpaceX (CC0 (SpaceX; Commons LicenseShortName, read 2026-10-26))
- [THAICOM 8 (27182485331)](https://commons.wikimedia.org/wiki/File:THAICOM_8_(27182485331).jpg), SpaceX (CC0 (SpaceX; Commons LicenseShortName, read 2026-10-26))