S5.98M

The S5.98M, also known as the 14D30, is a Russian rocket engine, currently powering the Briz upper stages. It was designed by KB KhIMMASH, the famous Isaev designed bureau. It burns a hypergolic mixture of unsymmetrical dimethylhydrazine (UDMH) fuel with dinitrogen tetroxide (N₂O₄) oxidizer in a gas-generator cycle.

See also

• Briz-M - The upper stage that is powered by the S5.98M.
• Proton-M - The heavy lift rocket that uses the Briz-M stage.
• Rokot - The light lift rocket that uses the smaller Briz-KM stage.
• Khrunichev - The manufacturer of the Briz stage and the corporate parent of the designer bureau.

References

External links

• KB KhIMMASH Official Page (Russian, Archived)
• Khrunichev Official Page (Archived)
• ILS Briz-M Page, the commercial launcher of the Proton-M
• Eurockot Official Page, the commercial launcher of the Rokot