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Proton-M/Briz-M
Part of Proton Family
Improved Proton orbital launch vehicle. Improvements in lower stages to reduce structural mass, increase thrust, and fully utilize propellants (reducing release of toxic chemicals in stage impact areas). Briz M storable propellant upper stage replaces Block D cryogenic stage.

AKA: 8K82M;Proton M;Proton/Briz M. Status: Active. First Launch: 2001-04-07. Last Launch: 2016-06-09. Number: 88 . Payload: 21,000 kg (46,000 lb). Thrust: 21,000.00 kN (4,720,000 lbf). Gross mass: 712,800 kg (1,571,400 lb). Height: 53.00 m (173.00 ft). Diameter: 4.15 m (13.61 ft). Span: 7.40 m (24.20 ft). Apogee: 40,000 km (24,000 mi).

LEO Payload: 21,000 kg (46,000 lb). Payload: 4,500 kg (9,900 lb) to a GTO.

Stage Data - Proton 8K82K / Briz-M

  • Stage 1. 1 x Proton KM-1. Gross Mass: 450,400 kg (992,900 lb). Empty Mass: 31,000 kg (68,000 lb). Thrust (vac): 10,532.000 kN (2,367,687 lbf). Isp: 317 sec. Burn time: 108 sec. Isp(sl): 285 sec. Diameter: 7.40 m (24.20 ft). Span: 7.40 m (24.20 ft). Length: 21.00 m (68.00 ft). Propellants: N2O4/UDMH. No Engines: 6. Engine: RD-253-14D14. Status: In Production.
  • Stage 2. 1 x Proton K-2. Gross Mass: 167,828 kg (369,997 lb). Empty Mass: 11,715 kg (25,827 lb). Thrust (vac): 2,399.216 kN (539,365 lbf). Isp: 327 sec. Burn time: 206 sec. Isp(sl): 230 sec. Diameter: 4.15 m (13.61 ft). Span: 4.15 m (13.61 ft). Length: 14.00 m (45.00 ft). Propellants: N2O4/UDMH. No Engines: 4. Engine: RD-0210. Other designations: 8S811K. Status: In Production.
  • Stage 3. 1 x Proton K-3. Gross Mass: 50,747 kg (111,877 lb). Empty Mass: 4,185 kg (9,226 lb). Thrust (vac): 630.170 kN (141,668 lbf). Isp: 325 sec. Burn time: 238 sec. Isp(sl): 230 sec. Diameter: 4.15 m (13.61 ft). Span: 4.15 m (13.61 ft). Length: 6.50 m (21.30 ft). Propellants: N2O4/UDMH. No Engines: 1. Engine: RD-0212. Status: In Production.
  • Stage 4. 1 x Proton KM-4 Briz M. Gross Mass: 22,170 kg (48,870 lb). Empty Mass: 2,370 kg (5,220 lb). Thrust (vac): 19.600 kN (4,406 lbf). Isp: 326 sec. Burn time: 3,000 sec. Diameter: 2.50 m (8.20 ft). Span: 4.10 m (13.40 ft). Length: 2.61 m (8.56 ft). Propellants: N2O4/UDMH. No Engines: 1. Engine: S5.98M. Other designations: Briz M. Status: In Production. New upper stage for Proton, replacing Energia Corporation's Block DM, making Proton an all-Khrunichev launch vehicle. The Khrunichev-built Briz-M upper stage is a derivative of the flight-proven Briz -K stage (as used on the Rokot booster). The Briz-M consists of a central cylinder and a jettisonable external propellant tank. Propellant carried is dependent on the specific mission requirements and is varied to maximize performance for the mission. The Briz-M is capable of operating, on-orbit, for a minimum of 24-hours and is controlled by a closed loop, triple redundant guidance system that is commandable in flight.


More at: Proton-M/Briz-M.

Family: orbital launch vehicle. Country: Russia. Engines: 17D58E. Spacecraft: Ekspress-1000, Ekspress-2000, Raduga, Glonass, Ekran-M, Eurostar 2000, FS-1300, Raduga-1, HS 601, Gals, Ekspress, Spacebus 3000, AS 2100, Star bus, HS 702, Spacebus 4000, Eurostar 3000, DS2000, Yakhta, Garpun. Projects: Americom, DirecTV, Eutelsat, Hispasat, Intelsat, Measat, Sirius. Launch Sites: Baikonur, Baikonur LC81/24, Baikonur LC200/39, Baikonur LC39/200. Stages: Proton K-2, Proton M-1, Proton M-3, Proton KM-4 Briz M. Agency: Chelomei bureau.

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