**There are two versions of the rocket here: a solid version and a hollow version.
Both models have been tested, but please comment on any errors you come across.
Solid Version: Original design of the rocket and is held together by pegs. nPOTOH letting is etched into the actual print. This version has not been edited since the initial upload
Hallow Version: New version of the same design that uses about half of the material. EACH PIECE IS HELD TOGETHER WITH A TWIST-LOCK FITTING
The Proton-M is a Russian heavy-lift rocket, derived from the Soviet Proton rocket. The Proton-M launch vehicle consists of three stages; all of them powered by liquid rocket engines using the hypergolic propellant combination of dinitrogen tetroxide as the oxidizer, and unsymmetrical dimethylhydrazine for fuel.
| 1st_Stage.STL | 557.5KB | |
| 1st_Stage_Hallow.STL | 31.3MB | |
| 2nd_Stage.STL | 730.3KB | |
| 2nd_Stage_Hallow.STL | 8.3MB | |
| 3rd_Stage.STL | 294.4KB | |
| 3rd_Stage_Hallow.STL | 8.6MB | |
| Fairing.STL | 97.1KB | |
| Fairing_Hallow.STL | 1.8MB | |
| Pegs.STL | 884.0B | |
| Proton_Complete.stl | 2.9MB | |
| Proton_Hallow_Complete.stl | 49.3MB |
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