The Voskhod rocket (Russian: Восход, translated as "Sunrise") was a derivative of the Soviet R-7 ICBM designed for the human spaceflight programme but later used for launching Zenit reconnaissance satellites. It combined the R-7 with an upper stage that had been originally designed to launch interplanetary probes.

There was only one main variant of the Voskhod, designated 11A57. Between 1963 and 1976 it was used for some 300 launches.

Voskhod 11A57

• Stage Number: 0 - Strap-on boosters; 4 x Voskhod 11A57-0
  • Gross Mass: 43,400 kg
  • Empty Mass: 3,800 kg.
  • Thrust (vac): 4 x 995.4 kN = 3,981.5 kN
  • Isp: 314 kgf·s/kg (3.08 kN·s/kg)
  • Burn time: 119 s
  • Isp(sl): 257 kgf·s/kg (2.52 kN·s/kg)
  • Diameter: 2.68 m
  • Span: 8 m
  • Length: 19.00 m
  • Propellants: Lox/Kerosene
  • Engines: 4 x RD-107-8D74K

• Stage Number: 1 - Core stage; 1 x Voskhod 11A57-1
  • Gross Mass: 100,500 kg
  • Empty Mass: 6,800 kg
  • Thrust (vac): 941.4 kN
  • Isp: 315 kgf·s/kg (3.09 kN·s/kg)
  • Burn time: 301 s
  • Isp(sl): 248 kgf·s/kg (2.43 kN·s/kg)
  • Diameter: 2.99 m
  • Span: 2.60 m
  • Length: 28.00 m
  • Propellants: Lox/Kerosene
  • Engine: 1 x RD-108-8D75K

• Stage Number: 2 - Final Stage; 1 x Voskhod 11A57-2
  • Gross Mass: 24,300 kg
  • Empty Mass: 2,000 kg
  • Thrust (vac): 294.2 kN
  • Isp: 330 kgf·s/kg (3.24 kN·s/kg)
  • Burn time: 240 s
  • Diameter: 2.56 m
  • Length: 2.84 m
  • Propellants: Lox/Kerosene
  • Engine: 1 x RD-0108

See also

Voskhod program