Library
Versions of Generic underground refuge chamber, 12 person
Published versions never change. A new license, new data or new geometry is always a new version; people who used an older one keep it.
| Drawing | Version | Change | License | Status | Published |
|---|---|---|---|---|---|
| Version 2 | GeometryAdded the skid base, the round steel hull with stiffening rings, an airlock door with a wheel and a window, and two roof vent pipes, sized for 12 people (plan and 3D). | CC0 | Published | Nov 3, 2026 | |
| Version 1 | GeometryFirst version. | CC0 | Published | Nov 3, 2026 |