Leonov's spacewalk
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
Leonov's spacewalk is one of the 203 3D models Space Radar made itself: a crewed craft or station, 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 7,344 triangles in a 76 kB glTF file, and is 1.8 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 |
|---|---|
| Height | 1.8 m |
| Pack width | 0.33 m |
| Pack height | 0.47 m |
| Pack depth | 0.15 m |
Wikipedia, 'Voskhod 2' (read 2026-11-03): Leonov in the Berkut suit, a modified Sokol-1, with the white metal EVA backpack (45 minutes of oxygen, a relief valve). NOT PUBLISHED on any page opened, so READ OFF THE PHOTOGRAPHS and ILLUSTRATIVE: the figure's 1.8 m head to toe in this pose (Leonov was about 1.78 m; the suit adds its bulk), the pack's size, the suit's puffing, every pocket, ring, strap and hose, the chest camera, the pose of the arms and legs (read off the film frame and the posed museum display).
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 pictures; compared with photographs of the Berkut suit on display (CC0, CC BY-SA, public domain).
The full record
built by this project in code (tools/vostok-builder/, release 1.7.2: leonov.py); no agency or museum 3D model of the Berkut suit or of Leonov under a free licence was found (read 2026-11-03): NASA 3D Resources has nothing of it; the downloadable meshes a web search found are sold or personal-use only. So it is built, as the quality bar says, from opened facts and several photographs of the flight-standard suit and the museum displays. No image-to-3D model was used and no published mesh.
Where the map uses it. NOTHING YET, as a route on the map: no object of the map is Alexei Leonov. It is the cosmonaut of the Voskhod 2 Moment (release 1.7.2): Leonov in the Berkut suit on his spacewalk of 18 March 1965, in the pose of the film (arms forward and down, legs trailing), in two parts so the player can part them: the suit and the white EVA pack. Origin: the centre of mass of the whole; +Y up the body toward the head, +Z out of the chest, +X his left; 1.8 m from head to heel
Licence note. The shape is this project's, under this repository's licence, built from published facts and photographs. 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 12
What the shape was compared with. None of these pictures is in the file.
- Berkut spacesuit 1.JPGArmaelCC0 (Commons, read 2026-11-03)
- Berkut spacesuit 3.JPGArmaelCC0 (Commons, read 2026-11-03)
- Berkut spacesuit 4.JPGArmaelCC0 (Commons, read 2026-11-03)
- Berkut spacesuit at Air and Space.jpgCraigboyCC BY-SA 3.0 (Commons, read 2026-11-03)
- Berkut spacesuit at Air and Space - back removed.jpgCraigboyCC BY-SA 3.0 (Commons, read 2026-11-03)
- Moscow - Polytech museum - Berkut spacesuit.jpgАлександр СигачёвCC0 (Commons, read 2026-11-03)
- Berkut spacesuit in museum.jpgМузей КосмонавтикиCC0 (Commons, read 2026-11-03)
- Voskhod-2 airlock and spacesuit.jpgKucharekPublic domain (Commons, read 2026-11-03)
- 1980 CPA 5064.jpgUSSR PostPublic domain (Commons, read 2026-11-03)
- LeonovSpacewalk.gifunknown authorPublic domain (Commons, read 2026-11-03)
- Pavel Belyayev and Alexey Leonov 2.jpgSergeev L.V.CC BY-SA 3.0 (Commons, read 2026-11-03)
- Voskhod 2, WikipediaWikipedia contributorsCC BY-SA 4.0 (Wikipedia's text); the facts are facts
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:
Leonov's spacewalk 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=leonov-eva" title="Leonov's spacewalk, 3D model by Space Radar" width="600" height="450" loading="lazy" style="border:0;max-width:100%"></iframe>Related models
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