Vostok 8A92

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Vostok 8A92

Vostok LV - Vostok launch vehicle, Moscow

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Family: R-7. Country: Russia. Status: Hardware. Library of Congress Designation: A-1. Department of Defence Designation: SL-3. Article Number: 8K72K.

The 8A92 was a modernized version of the Vostok booster used for launch of Zenit-2 reconnaisance satellites.

Specifications

Launches: 52. Failures: 5. Success Rate: 90.38% pct. First Launch Date: 01 June 1962. Last Launch Date: 12 May 1967. LEO Payload: 4,730 kg. to: 200 km Orbit. at: 65.0 degrees. Liftoff Thrust: 407,565 kgf. Total Mass: 281,375 kg. Core Diameter: 3.0 m. Total Length: 30.8 m.

Stage Number: 0. 4 x Vostok 8A92-0 Gross Mass: 43,300 kg. Empty Mass: 3,700 kg. Thrust (vac): 101,500 kgf. Isp: 313 sec. Burn time: 118 sec. Isp(sl): 256 sec. Diameter: 2.7 m. Span: 2.7 m. Length: 19.0 m. Propellants: Lox/Kerosene No Engines: 1. RD-107-8D74K
Stage Number: 1. 1 x Vostok 8A92-1 Gross Mass: 100,400 kg. Empty Mass: 6,800 kg. Thrust (vac): 95,900 kgf. Isp: 315 sec. Burn time: 301 sec. Isp(sl): 248 sec. Diameter: 3.0 m. Span: 3.0 m. Length: 28.0 m. Propellants: Lox/Kerosene No Engines: 1. RD-108-8D75K
Stage Number: 2. 1 x Vostok 8A92-2 Gross Mass: 7,775 kg. Empty Mass: 1,440 kg. Thrust (vac): 5,600 kgf. Isp: 326 sec. Burn time: 369 sec. Isp(sl): 0 sec. Diameter: 2.6 m. Span: 2.6 m. Length: 2.8 m. Propellants: Lox/Kerosene No Engines: 1. RD-0109

Vostok 8A92 Chronology

1962 Jun 1 - - 09:38 GMT. Launch Site: Baikonur . Launch Complex: LC1. FAILURE: Shutdown of Block B strap-on engine stage 1.8 seconds after liftoff. The booster crashed 300 m from the pad. Pad damaged.

Zenit-2 11F61 s/n 3 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 3. Mass: 4,610 kg.
Area survey photo reconnaissance satellite. Third attempted launch of Zenit photo-reconnaissance satellite.

1962 Jul 28 - - 09:19 GMT. Launch Site: Baikonur . Launch Complex: LC1.

Cosmos 7 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 4. Mass: 4,610 kg.
Area survey photo reconnaissance satellite. Also performed radiation measurements.

1962 Sep 27 - - 09:40 GMT. Launch Site: Baikonur . Launch Complex: LC1.

Cosmos 9 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 7. Mass: 4,700 kg.
Area survey photo reconnaissance satellite. Also performed radiation measurements.

1962 Oct 17 - - 09:00 GMT. Launch Site: Baikonur . Launch Complex: LC1.

Cosmos 10 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 5. Mass: 4,700 kg.
Area survey photo reconnaissance satellite. Also performed radiation measurements.

1962 Dec 22 - - 09:33 GMT. Launch Site: Baikonur . Launch Complex: LC1.

Cosmos 12 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 6. Mass: 4,700 kg.
Area survey photo reconnaissance satellite. Also performed radiation measurements.

1963 Mar 21 - - 08:24 GMT. Launch Site: Baikonur . Launch Complex: LC1.

Cosmos 13 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 9. Mass: 4,700 kg.
Area survey photo reconnaissance satellite. Also performed radiation measurements.

1963 Apr 22 - - 08:24 GMT. Launch Site: Baikonur . Launch Complex: LC1.

Cosmos 15 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 8. Mass: 4,720 kg.
Vostok LV
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Area survey photo reconnaissance satellite. Also carried weather, radiation experiments.

1963 Apr 28 - - 09:36 GMT. Launch Site: Baikonur . Launch Complex: LC1.

Cosmos 16 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 10. Mass: 4,720 kg.
Program partially completed. Part of the information lost due to failure of engine block stabilization system. Area survey photo reconnaissance satellite. Also performed radiation measurements.

1963 May 24 - - 10:48 GMT. Launch Site: Baikonur . Launch Complex: LC1.

Cosmos 18 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 11. Mass: 4,720 kg.
Area survey photo reconnaissance satellite. Also performed radiation measurements.

1963 Jul 10 - Launch Site: Baikonur . Launch Complex: LC1. FAILURE: Shutdown of Block B strap-on engine stage 1.9 seconds after liftoff. Pad damaged.

Zenit-2 11F61 s/n 12 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 12. Mass: 4,720 kg.
Area survey photo reconnaissance satellite.

1963 Oct 18 - - 09:30 GMT. Launch Site: Baikonur . Launch Complex: LC1.

Cosmos 20 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 13. Mass: 4,720 kg.
Area survey photo reconnaissance satellite.

1963 Nov 28 - Launch Site: Baikonur . Launch Complex: LC1. FAILURE: Failure of block E upper stage. Spacecraft liquidated by APO destruct system.

Zenit-2 11F61 s/n 14 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 14. Mass: 4,720 kg.
Area survey photo reconnaissance satellite.

1963 Dec 19 - - 09:29 GMT. Launch Site: Baikonur . Launch Complex: LC1.

Cosmos 24 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 15. Mass: 4,720 kg.
R-7 Cutaways
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Area survey photo reconnaissance satellite.

1964 Jan 30 - - 09:45 GMT. Launch Site: Baikonur .

Elektron 2 Spacecraft: Elektron-B. Payload: 2D s/n 2. Mass: 444 kg.
Studied outer Van Allen belt. Electron I and II launched by a single carrier rocket. Electron I: simultaneous study of the Earth's inner and outer radiation belts, cosmic rays and upper atmosphere. Electron II: simultaneous study of the Earth's inner and outer radiation belts, cosmic rays and outer space.
Elektron 1 Spacecraft: Elektron-A. Payload: 2D s/n 1. Mass: 329 kg.
Studied inner Van Allen belt. Electron I and II launched by a single carrier rocket. Electron I: simultaneous study of the Earth's inner and outer radiation belts, cosmic rays and upper atmosphere. Electron II: simultaneous study of the Earth's inner and outer radiation belts, cosmic rays and outer space.

1964 Mar 10 -

Zenit-2 spy satellite accepted into mlitary service Spacecraft: Zenit-2.
Defence Ministry of the USSR decree 0045 'On adopting the Zenit-2 satellite launched on the 8A92 into armaments' was issued.

1964 Apr 4 - - 09:36 GMT. Launch Site: Baikonur . Launch Complex: LC31.

Cosmos 28 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 16. Mass: 4,720 kg.
Area survey photo reconnaissance satellite.

1964 Apr 25 - - 10:19 GMT. Launch Site: Baikonur . Launch Complex: LC31.

Cosmos 29 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 19. Mass: 4,720 kg.
Area survey photo reconnaissance satellite.

1964 Jun 10 - - 10:48 GMT. Launch Site: Baikonur . Launch Complex: LC31.

Cosmos 32 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 18. Mass: 4,720 kg.
Area survey photo reconnaissance satellite.

1964 Jun 23 - - 10:19 GMT. Launch Site: Baikonur . Launch Complex: LC31.

Cosmos 33 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 20. Mass: 4,720 kg.
R-7 aft end
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Area survey photo reconnaissance satellite.

1964 Jul 11 - - 21:51 GMT. Launch Site: Baikonur .

Elektron 4 Spacecraft: Elektron-B. Payload: 2D s/n 4. Mass: 444 kg.
Studied outer Van Allen belt. Electron 3 and 4 launched by a single carrier rocket. Simultaneous study of the inner and outer radiation belts of the earth, cosmic rays and the upper atmosphere.
Elektron 3 Spacecraft: Elektron-A. Payload: 2D s/n 3. Mass: 350 kg.
Studied inner Van Allen belt. Electron 3 and 4 launched by a single carrier rocket. Simultaneous study of the inner and outer radiation belts of the earth, cosmic rays and the upper atmosphere.

1964 Jul 15 - - 11:31 GMT. Launch Site: Baikonur . Launch Complex: LC31.

Cosmos 35 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 21. Mass: 4,720 kg.
Area survey photo reconnaissance satellite.

1964 Aug 14 - - 09:36 GMT. Launch Site: Baikonur . Launch Complex: LC31.

Cosmos 37 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 22. Mass: 4,720 kg.
Area survey photo reconnaissance satellite. Program partially completed. Break in the film fof the SA-10 camera.

1964 Aug 28 - - 16:19 GMT. Launch Site: Baikonur .

Cosmos 44 Spacecraft: Meteor. Payload: Meteor no. 1. Mass: 4,730 kg.
Investigation of the upper atmosphere and outer space.

1964 Sep 24 - - 12:00 GMT. Launch Site: Baikonur . Launch Complex: LC31.

Cosmos 46 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 23. Mass: 4,720 kg.
Area survey photo reconnaissance satellite.

1964 Oct 14 - - 09:50 GMT. Launch Site: Baikonur . Launch Complex: LC31.

Cosmos 48 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 24. Mass: 4,720 kg.
R-7
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Area survey photo reconnaissance satellite. Program partially completed. Returned early due to failure of spacecraft thermoregulation system; internal temperature rose to 43 degrees C.

1964 Oct 28 - - 10:48 GMT. Launch Site: Baikonur . Launch Complex: LC31.

Cosmos 50 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 25. Mass: 4,720 kg.
Area survey photo reconnaissance satellite. Unsuccessful mission. Failure of the braking engine system. Spacecraft ordered to self destruct.

1965 Jan 11 - - 09:36 GMT. Launch Site: Baikonur . Launch Complex: LC31.

Cosmos 52 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 26. Mass: 4,720 kg.
Area survey photo reconnaissance satellite.

1965 Feb 26 - - 05:02 GMT. Launch Site: Baikonur .

Cosmos 58 Spacecraft: Meteor. Payload: Meteor no. 2. Mass: 4,730 kg.
Probable weather satellite. Investigation of the upper atmosphere and outer space.

1965 Mar 25 - - 10:04 GMT. Launch Site: Baikonur . Launch Complex: LC31.

Cosmos 64 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 17. Mass: 4,720 kg.
Area survey photo reconnaissance satellite.

1965 May 7 - - 09:50 GMT. Launch Site: Baikonur . Launch Complex: LC31.

Cosmos 66 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 27. Mass: 4,720 kg.
Returned after 8 days. Unsuccessful mission. Parachute deployment failure. Spacecraft destroyed in crash.

1965 Jun 15 - - 10:04 GMT. Launch Site: Baikonur . Launch Complex: LC31.

Cosmos 68 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 29. Mass: 4,720 kg.
Area survey photo reconnaissance satellite.

1965 Jul 13 - Launch Site: Baikonur . Launch Complex: LC31. FAILURE: Second stage guidance failure.

Zenit-2 11F61 s/n 28 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 28. Mass: 4,720 kg.
R-7 forward view - R-7 forward compartment
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Area survey photo reconnaissance satellite.

1965 Aug 14 - - 11:16 GMT. Launch Site: Baikonur . Launch Complex: LC31.

Cosmos 78 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 30. Mass: 4,720 kg.
Area survey photo reconnaissance satellite.

1965 Nov 27 - - 08:24 GMT. Launch Site: Baikonur . Launch Complex: LC31.

Cosmos 98 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 31. Mass: 4,720 kg.
Area survey photo reconnaissance satellite.

1965 Dec 10 - - 08:09 GMT. Launch Site: Baikonur . Launch Complex: LC31.

Cosmos 99 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 32. Mass: 4,720 kg.
Area survey photo reconnaissance satellite.

1965 Dec 17 - - 02:24 GMT. Launch Site: Baikonur .

Cosmos 100 Spacecraft: Meteor. Payload: Meteor no. 3. Mass: 4,730 kg.
Probable weather satellite. Investigation of the upper atmosphere and outer space.

1966 Jan 7 - - 08:24 GMT. Launch Site: Baikonur . Launch Complex: LC31.

Cosmos 104 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 36. Mass: 4,720 kg.
Area survey photo reconnaissance satellite. Program not completely met. Spacecraft put into incorrect orbit by abnormal function of second and third stages of booster.

1966 Jan 22 - - 08:38 GMT. Launch Site: Baikonur . Launch Complex: LC31.

Cosmos 105 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 38. Mass: 4,720 kg.
Area survey photo reconnaissance satellite.

1966 Feb 10 - - 08:52 GMT. Launch Site: Baikonur . Launch Complex: LC31.

Cosmos 107 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 34. Mass: 4,720 kg.
Area survey photo reconnaissance satellite.

1966 Mar 17 - - 10:28 GMT. Launch Site: Plesetsk . Launch Complex: LC41/1.

Cosmos 112 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 37. Mass: 4,720 kg.
Area survey photo reconnaissance satellite.

1966 Apr 20 - - 10:48 GMT. Launch Site: Baikonur . Launch Complex: LC31.

Cosmos 115 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 35. Mass: 4,720 kg.
. Program partially completed. Abnormal operation of SA-10 camera.

1966 May 6 - - 11:02 GMT. Launch Site: Baikonur . Launch Complex: LC31.

Cosmos 117 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 39. Mass: 4,720 kg.
Area survey photo reconnaissance satellite.

1966 May 11 - - 14:09 GMT. Launch Site: Baikonur .

Cosmos 118 Spacecraft: Meteor. Payload: Meteor no. 4. Mass: 4,730 kg.
Probable weather satellite. Investigation of the upper atmosphere and outer space.

1966 Jun 25 - - 10:19 GMT. Launch Site: Baikonur .

Cosmos 122 Spacecraft: Meteor. Payload: Meteor no. 5. Mass: 4,730 kg.
Investigation of the upper atmosphere and outer space.

1966 Sep 16 - Launch Site: Baikonur . Launch Complex: LC31. FAILURE: Launch vehicle destroyed. Failure of Block D core stage.

Zenit-2 11F61 s/n 40 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 40. Mass: 4,720 kg.
Area survey photo reconnaissance satellite.

1966 Oct 14 - - 12:13 GMT. Launch Site: Plesetsk . Launch Complex: LC41/1.

Cosmos 129 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 33. Mass: 4,720 kg.
Area survey photo reconnaissance satellite.

1966 Nov 19 - - 08:09 GMT. Launch Site: Baikonur . Launch Complex: LC31.

Cosmos 132 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 46. Mass: 4,720 kg.
Area survey photo reconnaissance satellite.

1966 Dec 19 - - 12:00 GMT. Launch Site: Plesetsk . Launch Complex: LC41/1.

Cosmos 136 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 47. Mass: 4,720 kg.
Area survey photo reconnaissance satellite. Also carried science package.

1967 Jan 19 - - 12:40 GMT. Launch Site: Plesetsk . Launch Complex: LC41/1.

Cosmos 138 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 43. Mass: 4,720 kg.
Area survey photo reconnaissance satellite.

1967 Feb 27 - - 08:45 GMT. Launch Site: Baikonur . Launch Complex: LC1.

Cosmos 143 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 45. Mass: 4,720 kg.
Placed into orbit with 22.8 second period different from that planned. Area survey photo reconnaissance satellite. Also carried science package.

1967 Mar 13 - - 12:10 GMT. Launch Site: Plesetsk . Launch Complex: LC41/1.

Cosmos 147 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 44. Mass: 4,720 kg.
Area survey photo reconnaissance satellite. Program partially completed.

1967 Apr 4 - - 14:00 GMT. Launch Site: Plesetsk . Launch Complex: LC41/1.

Cosmos 153 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 48. Mass: 4,720 kg.
Area survey photo reconnaissance satellite. Program partially completed. Failure of primary SA-20 camera.

1967 May 12 - - 10:30 GMT. Launch Site: Baikonur . Launch Complex: LC1.

Cosmos 157 Spacecraft: Zenit-2. Payload: Zenit-2 11F61 s/n 49. Mass: 4,720 kg.
Area survey photo reconnaissance satellite. Program partially completed. Bad quality film loaded into SA-20 camera.

Bibliography:

89 - Semenov, Yu. P., S P Korolev Space Corporation Energia, RKK Energia, 1994.
150 - Clark, P S, Journal of the British Interplanetary Society, "Soviet Spacecraft Masses for Earth Orbital Programmes", 1985, Volume 38, page 19.

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Last update 12 March 2001.
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