RD-253
From Spacefaring
Q1786759
The RD-253 and its later variants, the RD-275 and RD-275M, are liquid-propellant rocket engines developed in the Soviet Union by Energomash. The engines are used on the first stage of the Proton launch vehicle and use an oxidizer-rich staged combustion cycle to power the turbopumps. The engine burns a hypergolic mixture of unsymmetrical dimethylhydrazine (UDMH) fuel with dinitrogen tetroxide oxidizer, which are highly toxic, but storable at room temperature.
Wikimedia, Wikidata
Rocket Engine 253
NPO Energomash,
Ashkenaz, Calvinist Republic of Ghent, Chinland, Havilah, Kingdom of Martabam-hongsawatoi, Kingdom of Wolaita, Persia, Sikh Confederacy, Sweden, Tarshish, Dong Fang Hong 2, Ekran,
-
Location: KML, Cluster Map, Maps,
| Type | Subtype | Date | Description | Notes | Source |
|---|---|---|---|---|---|