Kosmos-3M second stage
Shape built from published dimensions and pictures; details simplified.
Turn it in 3D
Open the 3D viewer (www.spaceradar.ai).
The viewer loads when you ask: about 700 kB the first time (three.js and the model), much less after.
Pictures 4
Three-quarter view
From the side
From behind
From above
About this model
Kosmos-3M second stage is one of the 203 3D models Space Radar made itself: a rocket stage, built in code from published dimensions and photographs, with no image-to-3D generator and no one else’s mesh.
Shape built from published dimensions and pictures; details simplified. It has 9,524 triangles in a 63 kB glTF file, and is 6.0 m across at full scale.
It is part of the map’s library; no object on the live map is drawn with it today.
Dimensions and their sources
| Measure | Value |
|---|---|
| Length | 6 m |
| Diameter | 2.4 m |
Encyclopedia Astronautica, 'Kosmos 11K65M' (astronautix.com/k/kosmos11k65m.html), OPENED 2026-10-26: second stage 'Diameter: 2.40 m', 'Length: 6.00 m', '1,435 kg empty', engine 11D49. OURS: the bell and steering nozzles (read off the infographic against the 2.4 m barrel), the instrument section's height (about a sixth of the stage, read off the Commons photographs of the whole vehicle) (read 2026-10-26)
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 Dmitry Shipulja's CC0 photograph; the Commons photographs and infographic of the Kosmos-3M, looked at.
The full record
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)
Where the map uses it. catalogue name SL-8 R/B (klass rocket): the second stage of the Kosmos-3M (11K65M), the most numerous rocket body in orbit, 286; public #1160
Licence note. The shape is this project's, under this repository's licence, built from published numbers (facts). Every picture it was compared with is listed under references; each was only looked at, none was traced, copied or projected, and the share-alike ones (CC BY-SA) are credited all the same.
References 3
What the shape was compared with. None of these pictures is in the file.
- Cosmos3M.jpg (Trash777)Trash777CC BY-SA 4.0 (Commons LicenseShortName, read 2026-10-26); looked at, nothing taken from it
- Kosmos rocket.jpg (Dmitry Shipulja)Dmitry ShipuljaCC0 (Commons LicenseShortName, read 2026-10-26)
- Kosmos-3m infografia.jpg (Julio Perez Suarez)Julio Perez SuarezCC BY-SA 3.0 (Commons LicenseShortName, read 2026-10-26); looked at, nothing taken from it
Use it
The model is under the MIT licence: use it, change it and share it, in any project, also a paid one. Keep the credit:
Kosmos-3M second stage 3D model by Space Radar (spaceradar.ai), MIT LicenseAny glTF 2.0 loader that reads meshopt compression (EXT_meshopt_compression) opens the file: three.js with its MeshoptDecoder, Babylon.js, model-viewer. Tools such as glTF-Transform can write an uncompressed copy.
Or embed the viewer in your page:
<iframe src="https://www.spaceradar.ai/model/?id=kosmos3m-stage2" title="Kosmos-3M second stage, 3D model by Space Radar" width="600" height="450" loading="lazy" style="border:0;max-width:100%"></iframe>Related models
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