Sputnik (rocket) - Specifications

Specifications

  • Stage number: 0 - Strap-on boosters; 4 x 8K71PS-0
    • Gross mass: 43.0 tons
    • Empty mass: 3.400 tons
    • Thrust (vac): 4 × 99,000 kgf = 396 Mgf (3.89 MN)
    • Isp: 306 s (3,000 N·s/kg)
    • Burn time: 120 s (2 min)
    • Isp(sl): 250 s (2,450 N·s/kg)
    • Diameter: 2.7 metres (8.9 ft)
    • Span: 2.7 metres (8.9 ft)
    • Length: 19 metres (62 ft)
    • Propellants: LOX/RP-1
    • Engines: 1 x RD-107-8D74PS per booster = 4
  • Stage number: 1 - Core stage; 1 x 8K71PS-1
    • Gross mass: 94.0 tons
    • Empty mass: 7.495 tons
    • Thrust (vac): 99,000 kgf (970 kN)
    • Isp: 308 s (3,020 N·s/kg)
    • Burn time: 310 s (5 min 10 s)
    • Isp(sl): 241 s (2,360 N·s/kg)
    • Diameter: 3 metres (9.8 ft)
    • Span: 3 metres (9.8 ft)
    • Length: 28 metres (92 ft)
    • Propellants: Lox/RP-1
    • Engine: 1 x RD-108-8D75PS
  • Total mass: 267 tons (534,000 lb)
  • LEO payload: 500 kg
  • Total liftoff thrust: 3.89 MN

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