Razgonny blok "Breeze" (Briz)
 

Launch vehicle

Block

 Operated
13.12.2021

Main engine

Propulsion

 Thrust (vac) Isp (vac) Fuel mass Burn time Flow rate
kN Nskg t s t/s

Rockot-M

  Breeze-KM  ? 24

 S5.98

  14D30 UDMH/N2O4 19.62 3222 5.055 830 0.0061

Proton-K

  Breeze-M 14S43 4

 S5.98

  14D30 UDMH/N2O4 19.62 3222 19.920 3270 0.0061

Proton-KM

 28

Proton-NM

 72

Angara-5

 1

 
  Breeze-KM

"The Breeze (Briz) rocket stage apparently originated in the 1980s within a Soviet anti-satellite weapons program designed to carry a "killer" vehicle toward its target in orbit.
 After the end of the Cold War, the propulsion section of the "killer" satellite was converted to a pair of upper stages, which were designated Briz-K and Briz-KM. Both were designed to fit on top of the Rockot launcher, which itself derived from the two-stage UR-100NU ballistic missile. Following three launches of Briz-K from 1990 to 1994, the technical project for Briz-KM was officially approved in 1995 with the initial goal of carrying Iridium satellites, whose launch was ordered by the Motorola company." (Anatoly Zak)




Old Breeze-K configuration

 

 

 

 

 


Breeze-KM configuration


Designer & Manufacturer: Khrunichev Space Centre
Dimensions: Length 2.5 m, Diameter 2.5 m
Empty Mass 1.42 tons
Propellants 5055 kg (UDMH + N2O4)
Main Engine: 1 x S5.98 (14D30)
Thrust in vacuum 19.62 kN, Isp 328,6 s
Precision Manoeuvering Engines: 4 x 11D458
Thrust in vacuum 392 N each, Isp 305.7 s
RCS Engines: 12 x 17D58E
Thrust in vacuum 13.3 N each, Isp 274.1 s



        
  Breeze-M

 



  

Designer & Manufacturer: Khrunichev Space Centre
Dimensions: Length 2.654 m, Diameter 4.100 m, Empty Mass 2.27 tons
Propellants 6,660 kg UDMH + 13,260 kg N2O4
Main Engine: 1 x  S5.98 (14D30)
Thrust in vacuum 19.62 kN, Isp 328.6 s
Precision Manoeuvering Engines: 4 x 11D458
Thrust in vacuum 392 N each, Isp 305.7 s
RCS Engines: 12 x 17D58E
Thrust in vacuum 13.3 N each, Isp 274.1 s


Breeze main engine S5.98 (14D30)