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Vostok (rocket family)

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Vostok
Vostok 8K72K rocket on display in Moscow at the All Russia Exhibition Centre
FunctionCarrier rocket
ManufacturerRKK Energia
Country of originUSSR
Size
Stages2
Capacity
Payload to LEO
Mass4,725 kilograms (10,417 lb)
Associated rockets
FamilyR-7
ComparableAtlas
Titan
Launch history
StatusRetired
Launch sitesBaikonur: LC-1/5, 31/6
Plesetsk: LC-41/1, 43/3, 43/4
Total launchesVostok-L: 4
Vostok-K: 13
Vostok-2: 45
Vostok-2M: 94
Soyuz/Vostok: 2
Success(es)Vostok-L: 3
Vostok-K: 11
Vostok-2: 40
Vostok-2M: 92
Soyuz/Vostok: 2
Failure(s)Vostok-L: 1
Vostok-K: 2
Vostok-2: 5
Vostok-2M: 2
First flight15 May 1960 (Vostok-L)
Last flight29 August 1991 (Vostok-2M)
Type of passengers/cargoVostok
Zenit
Meteor
Boosters (Vostok-K)
No. boosters4
Powered by1 RD-107-8D74-1959
Maximum thrust970.86 kN
Total thrust3,883.4 kN
Burn time118 seconds
PropellantRP-1/LOX
First stage (Vostok-K)
Powered by1 RD-108-8D75-1959
Maximum thrust912 kN
Burn time301 seconds
PropellantRP-1/LOX
Second stage (Vostok-K)
Powered by1 RD-0109
Maximum thrust54.5 kN
Burn time365 seconds
PropellantRP-1/LOX

Vostok (Russian Восток, translated as "East") was a family of rockets derived from the Soviet R-7 Semyorka ICBM designed for the human spaceflight programme. This family of rockets launched the first artificial satellite ("sputnik") and the first manned spacecraft in human history. It was a subset of the R-7 family of rockets.

On March 18, 1980 a Vostok-2M rocket exploded on its launch pad at Plesetsk during a fueling operation, killing 48 people. An investigation into a similar – but avoided – accident revealed that the substitution of lead-based for tin-based solder in hydrogen peroxide filters allowed the breakdown of the H2O2, thus causing the resultant explosion.

Variants

The major versions of the rocket were:

Vostok 8K72K

  • Stage number: 1 - Strap-on boosters; 4 x Vostok 8K72K-0
    • Gross mass: 43,300 kg
    • Empty mass: 3,710 kg
    • Thrust (vac): 4 x 99,000 kgf (971 kN) = 3.88 MN
    • Isp: 313 seconds (3.07 km/s)
    • Burn time: 118 s
    • Isp(sl): 256 seconds (2.51 km/s)
    • Diameter: 2.68 m
    • Span: 8.35 m
    • Length: 19.00 m
    • Propellants: Lox/Kerosene
    • Engines: 1 x RD-107-8D74-1959 per booster = 4
  • Stage number: 2 - Core stage; 1 x Vostok 8K72K-1
    • Gross mass: 100,400 kg
    • Empty mass: 6,800 kg
    • Thrust (vac): 912 kN
    • Isp: 315 seconds (3.09 km/s)
    • Burn time: 301 s
    • Isp(sl): 248 seconds (2.43 km/s)
    • Diameter: 2.99 m
    • Length: 28.00 m
    • Propellants: Lox/Kerosene
    • Engine: 1 x RD-108-8D75-1959
  • Stage number: 3 - Final stage; 1 x Vostok 8K72K-2
    • Gross mass: 7,775 kg
    • Empty mass: 1,440 kg
    • Thrust (vac): 54.5 kN
    • Isp: 326 seconds (3.20 km/s)
    • Burn time: 365 s
    • Diameter: 2.56 m
    • Span: 2.56 m
    • Length: 2.84 m
    • Propellants: Lox/Kerosene
    • Engine: 1 x RD-0109

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See also