Encyclopedia Astronautica
ZIF-IR-189


Solid propellant rocket stage. Loaded/empty mass 5,850/1,150 kg. Vacuum specific impulse 220 seconds. Used monolithic single motor with Nylon-S propellant. Combustion chamber pressure 30-40 kg/cm2.

Gross mass: 5,850 kg (12,890 lb).
Unfuelled mass: 1,150 kg (2,530 lb).
Diameter: 1.80 m (5.90 ft).
Span: 1.80 m (5.90 ft).
Specific impulse: 220 s.
Specific impulse sea level: 220 s.

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Associated Countries
Associated Launch Vehicles
  • Variant S Russian submarine-launched ballistic missile. Version with clustered Nylon-S propellant motors. More...

Associated Propellants
  • Solid Solid propellants have the fuel and oxidiser embedded in a rubbery matrix. They were developed to a high degree of perfection in the United States in the 1950's and 1960's. In Russia, development was slower, due to a lack of technical leadership in the area and rail handling problems. Solid propellants have the fuel and oxidiser embedded in a rubbery matrix. They were developed to a high degree of perfection in the United States in the 1950's and 1960's. In Russia, development was slower, due to a lack of technical leadership in the area and rail handling problems. More...

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