Encyclopedia Astronautica
Soyuz 11A511



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Soyuz LV
Credit: © Mark Wade
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Soyuz launch vehicle
Soyuz launch vehicle dynamic test model in test rig
Credit: © Mark Wade
Russian orbital launch vehicle. Standardized launch vehicle designed to replace a proliferation of earlier models (8K72, 8A91, 8K74, 8K78, 11A57). Designed initially to support launch of the Soyuz complex (7K manned, 9K rocket stage, and 11k tanker) and Zenit-4 reconnaisance satellite. Later 'U' model extended to cover a range of follow-on satellites. Compared to 11A57, the telemetry system was reduced in mass to no more than 150 kg, and engines were cherry-picked for the vehicle core to ensure that specific impulse was no less than 252 seconds at sea level, 315 in vacuum.

LEO Payload: 6,450 kg (14,210 lb) to a 200 km orbit at 51.60 degrees. Failures: 2. Success Rate: 93.33%. First Fail Date: 1966-12-14. Last Fail Date: 1975-04-05.

Stage Data - Soyuz 11A511

  • Stage 0. 4 x Soyuz 11A511-0. Gross Mass: 43,000 kg (94,000 lb). Empty Mass: 3,550 kg (7,820 lb). Thrust (vac): 994.300 kN (223,528 lbf). Isp: 314 sec. Burn time: 118 sec. Isp(sl): 257 sec. Diameter: 2.68 m (8.79 ft). Span: 2.68 m (8.79 ft). Length: 19.60 m (64.30 ft). Propellants: Lox/Kerosene. No Engines: 1. Engine: RD-107-11D511. Other designations: 11S59 Blocks A,B,V,G. Status: In Production.
  • Stage 1. 1 x Soyuz 11A511-1. Gross Mass: 100,500 kg (221,500 lb). Empty Mass: 6,500 kg (14,300 lb). Thrust (vac): 977.700 kN (219,796 lbf). Isp: 315 sec. Burn time: 292 sec. Isp(sl): 252 sec. Diameter: 2.95 m (9.67 ft). Span: 2.95 m (9.67 ft). Length: 27.80 m (91.20 ft). Propellants: Lox/Kerosene. No Engines: 1. Engine: RD-108-11D512. Other designations: 11S59 Block D. Status: In Production.
  • Stage 2. 1 x Soyuz 11A511-2. Gross Mass: 25,400 kg (55,900 lb). Empty Mass: 2,700 kg (5,900 lb). Thrust (vac): 294.000 kN (66,093 lbf). Isp: 330 sec. Burn time: 246 sec. Isp(sl): 0.0000 sec. Diameter: 2.66 m (8.72 ft). Span: 2.66 m (8.72 ft). Length: 6.74 m (22.11 ft). Propellants: Lox/Kerosene. No Engines: 1. Engine: RD-0110. Other designations: 11S510. Status: In Production.

AKA: Soyuz; SL-4; 11A511; Sapwood; A-2.
Status: Retired 1975.
Gross mass: 308,000 kg (679,000 lb).
Payload: 6,450 kg (14,210 lb).
Height: 45.60 m (149.60 ft).
Diameter: 10.30 m (33.70 ft).
Thrust: 4,037.70 kN (907,711 lbf).
Apogee: 200 km (120 mi).
First Launch: 1966.11.28.
Last Launch: 1975.05.24.
Number: 30 .

More... - Chronology...


Associated Countries
Associated Spacecraft
  • Soyuz 7K-OK Russian manned spacecraft. 17 launches, 1966.11.28 (Cosmos 133) to 1970.06.01 (Soyuz 9). Development of a three-manned orbital version of the Soyuz, the 7K-OK was approved in December 1963. More...
  • Soyuz 7KT-OK Russian manned spacecraft. 2 launches, 1971.04.23 (Soyuz 10) to 1971.06.06 (Soyuz 11). This was a modification of Soyuz 7K-OK with a lightweight docking system and a crew transfer tunnel. More...
  • Soyuz 7K-T Russian manned spacecraft. 23 launches, 1972.06.26 (Cosmos 496) to 1981.05.14 (Soyuz 40). More...
  • Soyuz 7K-T/A9 Russian manned spacecraft. 8 launches, 1974.05.27 (Cosmos 656) to 1978.06.27 (Soyuz 30). Version of 7K-T for flights to Almaz. Known difference with the basic 7K-T included systems for remote control of the Almaz station and a revised parachute system. More...

Associated Engines
  • RD-0110 Kosberg Lox/Kerosene rocket engine. 297.9 kN. Soyuz 11A511, Molniya-M 8K78M. Precursor RD-0107 used in 11A57 Voskhod stage 2. Modified to increase reliability. Isp=326s. First flight 1964. More...
  • RD-107-11D511 Glushko Lox/Kerosene rocket engine. 992 kN. Soyuz 11A511-0, Soyuz 11A511U-0. Design 2000. Diameter is per chamber. Isp=314s. First flight 1965. More...
  • RD-108-11D512 Glushko Lox/Kerosene rocket engine. 997 kN. Soyuz 11A511-1, Soyuz 11A511U-1. Design 2000. Diameter is per chamber. Isp=315s. First flight 1965. More...

See also
  • R-7 The world's first ICBM became the most often used and most reliable launch vehicle in history. The original core+four strap-on booster missile had a small third stage added to produce the Vostok launch vehicle, with a payload of 5 metric tons. Addition of a larger third stage produced the Voskhod/Soyuz vehicle, with a payload over 6 metric tons. Using this with a fourth stage, the resulting Molniya booster placed communications satellites and early lunar and planetary probes in higher energy trajectories. By the year 2000 over 1,628 had been launched with an unmatched success rate of 97.5% for production models. Improved models providing commercial launch services for international customers entered service in the new millenium, and a new launch pad at Kourou was to be inaugurated in 2011. It appeared that the R-7 could easily still be in service 70 years after its first launch. More...

Associated Manufacturers and Agencies
  • Korolev Russian manufacturer of rockets, spacecraft, and rocket engines. Korolev Design Bureau, Kaliningrad, Russia. More...

Associated Programs
  • Almaz The only manned military space station to have ever flown, it served only to prove that manned stations provided no cost-effective substitute to unmanned military satellites. Derivatives of the design continue in service into the 21st Century as modules of the Salyut, Mir, and International Space Stations. More...
  • Salyut The world's first space station, developed in one year by the Soviet Union on the basis of Chelomei's Almaz station, in an attempt to upstage the American Skylab after the loss of the moon landing race to the Americans. More...
  • Soyuz The Soyuz spacecraft was designed in 1962 for rendezvous and docking operations in near earth orbit, leading to piloted circumlunar flight. Versions remained in production into the 21st Century as a space station ferry, resupply craft, and lifeboat. After the retirement of the American space shuttle in 2011, it became the only means for regular human access to space. More...

Associated Launch Sites
  • Baikonur Russia's largest cosmodrome, the only one used for manned launches and with facilities for the larger Proton, N1, and Energia launch vehicles. The spaceport ended up on foreign soil after the break-up of Soviet Union. The official designations NIIP-5 and GIK-5 are used in official Soviet histories. It was also universally referred to as Tyuratam by both Soviet military staff and engineers, and the US intelligence agencies. Since the dissolution of the Soviet Union the Russian Federation has insisted on continued use of the old Soviet 'public' name of Baikonur. In its Kazakh (Kazak) version this is rendered Baykonur. More...

Associated Stages
  • Soyuz 11A511-0 Lox/Kerosene propellant rocket stage. Loaded/empty mass 43,000/3,550 kg. Thrust 994.30 kN. Vacuum specific impulse 314 seconds. More...
  • Soyuz 11A511-1 Lox/Kerosene propellant rocket stage. Loaded/empty mass 100,500/6,500 kg. Thrust 977.70 kN. Vacuum specific impulse 315 seconds. More...
  • Soyuz 11A511-2 Lox/Kerosene propellant rocket stage. Loaded/empty mass 25,400/2,700 kg. Thrust 294.00 kN. Vacuum specific impulse 330 seconds. More...

Soyuz 11A511 Chronology


1962 During the Year - . LV Family: R-7. Launch Vehicle: Soyuz 11A511.
  • Vostok-Zh studies - . Nation: USSR. Program: Lunar L1. Class: Manned. Type: Manned spacecraft. Spacecraft: Vostok-Zh. Vostok-Zh studies conducted for multiple dockings of rocket blocks and payloads in orbit for circumlunar missions, using Vostok rocket. Vostok-Zh spacecraft used to for manual dockings only. Manned reentry vehicle from circumlunar distance is Sever/Soyuz design. Korolev's reaction to Chelomei's exclusive assignment by Khrushchev to circumlunar mission.

1963 February 1 - . LV Family: R-7. Launch Vehicle: Soyuz 11A511.
  • Soyuz 'leaves drafting boards' - . Nation: USSR. Program: Lunar L1. Class: Manned. Type: Manned spacecraft. Spacecraft: Soyuz A. Summary: Soyuz 'leaves drafting boards'..

1963 March 7 - . LV Family: R-7. Launch Vehicle: Soyuz 11A511.
  • Korolev approves draft plan for 'Soyuz Complex' - . Nation: USSR. Related Persons: Chelomei; Korolev. Program: Lunar L1. Class: Manned. Type: Manned spacecraft. Spacecraft: Soyuz A; Soyuz 7K-OK; Soyuz B; Soyuz V. Final design approval for Soyuz A spacecraft for earth orbit and circumlunar flight using orbital rendezvous, docking, and refuelling technques. Except for change of orbital module from cylindrical to spherical design, and changes to rendezvous radar tower arrangement, this design was essentially identical to the Soyuz 7K-OK that flew three years later. Additional Details: here....

1966 November 28 - . 11:00 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC31. LV Family: R-7. Launch Vehicle: Soyuz 11A511. LV Configuration: Soyuz 11A511 U15000-02.
  • Cosmos 133 - . Payload: Soyuz 7K-OK (A) s/n 2. Mass: 6,450 kg (14,210 lb). Nation: USSR. Agency: MOM. Program: Soyuz. Class: Manned. Type: Manned spacecraft. Spacecraft: Soyuz 7K-OK. Duration: 1.97 days. Decay Date: 1966-11-30 . USAF Sat Cat: 2601 . COSPAR: 1966-107A. Apogee: 219 km (136 mi). Perigee: 173 km (107 mi). Inclination: 51.8000 deg. Period: 88.40 min. First test flight of Soyuz 7K-OK earth orbit spacecraft. A planned 'all up' test, with a second Soyuz to be launched the following day and automatically dock with Kosmos 133. This was to be followed by a manned link-up in December 1966. However Kosmos 133's attitude control system malfunctioned, resulting in rapid consumption of orientation fuel, leaving it spinning at 2 rpm. After heroic efforts by ground control and five attempts at retrofire over two days, the craft was finally brought down for a landing on its 33rd revolution. However due to the inaccuracy of the reentry burn, it was determined that the capsule would land in China. The APO self destruct system detected the course deviation and the destruct charge of several dozen kilogrammes of explosive was thought to have destroyed the ship on November 30, 1966 at 10:21 GMT. But stories persisted over the years of the Chinese having a Soyuz capsule in their possession....

1966 December 14 - . Launch Site: Baikonur. Launch Complex: Baikonur LC31. LV Family: R-7. Launch Vehicle: Soyuz 11A511. LV Configuration: Soyuz 11A511 U15000-01. FAILURE: Erroneous firing of launch escape tower ignited launch vehicle on the pad.. Failed Stage: P.
  • Soyuz 7K-OK s/n 2 - . Payload: Soyuz 7K-OK (A) s/n 1. Nation: USSR. Agency: RVSN. Program: Soyuz. Class: Manned. Type: Manned spacecraft. Spacecraft: Soyuz 7K-OK. COSPAR: F661214A. Second attempted flight of Soyuz 7K-OK (the spacecraft planned for the linkup with Ksomos 133). An analogue to Mercury Redstone's 'day we launched the tower' but with more disastorous consequences. The core stage ignited, but the strap-ons did not. A booster shutdown was commanded. The service towers were brought back around the booster, and ground crew began work to defuel the launch vehicle. At 27 minutes after the original launch attempt, the Soyuz launch escape system, having received the signal that liftoff had occurred, detected that the booster was not on course (either because a tower arm nudged the booster or because the earth's rotation as detected by the gyros had moved the spacecraft out of limits relative to its original inertial position). The launch escape system ignited, pulling the Soyuz away from the booster, igniting the third stage fuel tanks, leading to an explosion that severely damaged the pad and killed at least one person (the Soviet Rocket Forces major supervising the launch team) and injured many others.

1967 February 7 - . 03:20 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC1. LV Family: R-7. Launch Vehicle: Soyuz 11A511. LV Configuration: Soyuz 11A511 U15000-03.
  • Cosmos 140 - . Payload: Soyuz 7K-OK (P) s/n 3. Mass: 6,450 kg (14,210 lb). Nation: USSR. Agency: MOM. Program: Soyuz. Class: Manned. Type: Manned spacecraft. Spacecraft: Soyuz 7K-OK. Duration: 1.98 days. Decay Date: 1967-02-09 . USAF Sat Cat: 2667 . COSPAR: 1967-009A. Apogee: 216 km (134 mi). Perigee: 169 km (105 mi). Inclination: 51.6000 deg. Period: 88.30 min. After the self-destruction of the first Soyuz 7K-OK on re-entry, and the loss of the second one on the pad fire in December, the state commission ruled that the third 7K-OK model would be flown unpiloted on a solo mission. If this was successful then the fourth and fifth Soyuz would be flown on a manned docking mission. Once in orbit Cosmos 140 experienced attitude control problems due to a faulty star sensor resulting in excessive fuel consumption. The spacecraft couldn't keep the required orientation towards the sun to keep the solar panels illuminated, and the batteries discharged. Despite all of these problems the spacecraft remained controllable. An attempted manoeuvre on the 22nd revolution still showed problems with the control system. It malfunctioned yet again during retrofire, leading to a steeper than planned uncontrolled ballistic re-entry. The re-entry capsule itself had depressurised on separation from the service module due to a fault in the base of the capsule. A 300 mm hole burned through in the heat shield during re-entry. Although such events would have been lethal to any human occupants, the capsule's recovery systems operated and the capsule crashed through the ice of the frozen Aral Sea, 3 km from shore and 500 kilometres short of the intended landing zone. The spacecraft finally sank in 10 meters of water and had to be retrieved by divers. Still, the mission was deemed 'good enough' for the next mission to be a manned two-craft docking and crew transfer space spectacular. Mishin and Kamanin felt that a human crew could have sorted out the problems. They were also under intense pressure to achieve a manned circumlunar flight before the 50th Anniversary of the Soviet Revolution in October.

1967 April 23 - . 00:35 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC1. LV Family: R-7. Launch Vehicle: Soyuz 11A511. LV Configuration: Soyuz 11A511 U15000-04.
  • Soyuz 1 - . Call Sign: Rubin (Ruby ). Crew: Komarov. Backup Crew: Gagarin. Payload: Soyuz 7K-OK s/n 4. Mass: 6,450 kg (14,210 lb). Nation: USSR. Related Persons: Komarov; Gagarin. Agency: MOM. Program: Soyuz. Class: Manned. Type: Manned spacecraft. Flight: Soyuz 1; Soyuz 2A. Spacecraft: Soyuz 7K-OK. Duration: 1.12 days. Decay Date: 1967-04-24 . USAF Sat Cat: 2759 . COSPAR: 1967-037A. Apogee: 223 km (138 mi). Perigee: 197 km (122 mi). Inclination: 50.8000 deg. Period: 88.70 min. Space disaster that put back Soviet lunar program 18 months. Soyuz 1 as active spacecraft was launched first. Soyuz 2, with a 3 man crew would launch the following day, with 2 cosmonauts spacewalking to Soyuz 1. However immediately after orbital insertion Komarov's problems started. One of the solar panels failed to deploy, staying wrapped around the service module. Although only receiving half of the planned solar power, an attempt was made to manoeuvre the spacecraft. This failed because of interference of the reaction control system exhaust with the ion flow sensors that were one of the Soyuz' main methods of orientation. Additional Details: here....

1967 October 27 - . 09:29 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC31. LV Family: R-7. Launch Vehicle: Soyuz 11A511.
  • Cosmos 186 - . Payload: Soyuz 7K-OK (A) s/n 6. Mass: 6,530 kg (14,390 lb). Nation: USSR. Agency: MOM. Program: Soyuz. Class: Manned. Type: Manned spacecraft. Spacecraft: Soyuz 7K-OK. Duration: 3.95 days. Decay Date: 1967-10-31 . USAF Sat Cat: 3014 . COSPAR: 1967-105A. Apogee: 223 km (138 mi). Perigee: 179 km (111 mi). Inclination: 51.6000 deg. Period: 88.60 min. Docked with Cosmos 188; first automated rendezvous and docking of two spacecraft. The dockings were timed to celebrate the 50th Anniversary of the October Revolution (in lieu of a succession of manned space feats that all had to be cancelled due to schedule delays). Achieved automatic rendezvous on second attempt. Capture achieved but hard docking and electric connections unsuccessful due to misallignment of spacecraft. Star tracker failed and had to make a high-G ballistic re-entry. Recovered October 31, 1967 08:20 GMT.

1967 October 30 - . 08:12 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC1. LV Family: R-7. Launch Vehicle: Soyuz 11A511.
  • Cosmos 188 - . Payload: Soyuz 7K-OK (P) s/n 5. Mass: 6,530 kg (14,390 lb). Nation: USSR. Related Persons: Mishin; Mnatsakanian. Agency: MOM. Program: Soyuz. Class: Manned. Type: Manned spacecraft. Spacecraft: Soyuz 7K-OK. Duration: 3.04 days. Decay Date: 1967-11-02 . USAF Sat Cat: 3020 . COSPAR: 1967-107A. Apogee: 247 km (153 mi). Perigee: 180 km (110 mi). Inclination: 51.7000 deg. Period: 88.70 min. Docking target craft for Cosmos 186, which achieved world's first automatic rendezvous on second attempt. Hard docking achieved but electric connections unsuccessful due to misallignment of spacecraft. Ion flow sensor failed and Cosmos 188 had to make a high-G uncontrolled re-entry. When it deviated too far off course, it was destroyed by the on-board self-destruct system,. However officially the Soviet Union reported that it landed succesfully on November 2, 1967 at 09:10 GMT, and that its mission was 'investigation of outer space, development of new systems and elements to be used in the construction of space devices'. Additional Details: here....

1968 April 14 - . 10:00 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC31. LV Family: R-7. Launch Vehicle: Soyuz 11A511.
  • Cosmos 212 - . Payload: Soyuz 7K-OK (A) s/n 8. Mass: 6,500 kg (14,300 lb). Nation: USSR. Agency: MOM. Program: Soyuz. Class: Manned. Type: Manned spacecraft. Spacecraft: Soyuz 7K-OK. Duration: 4.92 days. Decay Date: 1968-04-19 . USAF Sat Cat: 3183 . COSPAR: 1968-029A. Apogee: 200 km (120 mi). Perigee: 180 km (110 mi). Inclination: 51.6000 deg. Period: 88.30 min. Summary: Cosmos 212 docked with Cosmos 213 in the first completely successful test of the Soyuz 7K-OK attitude control, automatic rendezvous and docking systems. Cosmos 212 was successfully recovered on April 19, 1968 at 08:10 GMT.. Additional Details: here....

1968 April 15 - . 09:34 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC1. LV Family: R-7. Launch Vehicle: Soyuz 11A511.
  • Cosmos 213 - . Payload: Soyuz 7K-OK (P) s/n 7. Mass: 6,500 kg (14,300 lb). Nation: USSR. Related Persons: Beregovoi. Agency: MOM. Program: Soyuz. Class: Manned. Type: Manned spacecraft. Spacecraft: Soyuz 7K-OK. Duration: 5.02 days. Decay Date: 1968-04-20 . USAF Sat Cat: 3193 . COSPAR: 1968-030A. Apogee: 254 km (157 mi). Perigee: 188 km (116 mi). Inclination: 51.7000 deg. Period: 88.90 min. Cosmos 213 was the target for Cosmos 212 in a successful test of Soyuz 7K-OK rendezvous and docking systems. The Cosmos 213 launch was the most accurate yet. The spacecraft was placed in orbit only 4 km from Cosmos 212, ready for a first-orbit docking. Both spacecraft were recovered, but Cosmos 213 was dragged by heavy wind across the steppes when the parachute lines didn't jettison at touchdown. This failure caused the upcoming Soyuz 2/3 manned docking mission to be scaled back.
    Officially: Investigation of outer space, development of new systems and elements to be used in the construction of space devices. Additional Details: here....

1968 August 28 - . 10:00 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC31. LV Family: R-7. Launch Vehicle: Soyuz 11A511.
  • Cosmos 238 - . Payload: Soyuz 7K-OK s/n 9. Mass: 6,520 kg (14,370 lb). Nation: USSR. Agency: MOM. Program: Soyuz. Class: Manned. Type: Manned spacecraft. Spacecraft: Soyuz 7K-OK. Duration: 3.96 days. Decay Date: 1968-09-01 . USAF Sat Cat: 3351 . COSPAR: 1968-072A. Apogee: 210 km (130 mi). Perigee: 203 km (126 mi). Inclination: 51.7000 deg. Period: 88.60 min. Summary: Recovered September 1, 1968 9:03 GMT. Final test of redesigned Soyuz 7K-OK spacecraft for Soyuz 3 manned mission..

1968 October 25 - . 09:00 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC1. LV Family: R-7. Launch Vehicle: Soyuz 11A511.
  • Soyuz 2 - . Payload: Soyuz 7K-OK s/n 11. Mass: 6,450 kg (14,210 lb). Nation: USSR. Related Persons: Beregovoi. Agency: MOM. Program: Soyuz. Class: Manned. Type: Manned spacecraft. Flight: Soyuz 3. Spacecraft: Soyuz 7K-OK. Duration: 2.95 days. Decay Date: 1968-10-28 . USAF Sat Cat: 3511 . COSPAR: 1968-093A. Apogee: 229 km (142 mi). Perigee: 191 km (118 mi). Inclination: 51.7000 deg. Period: 88.60 min. Unmanned docking target for Soyuz 3. Soyuz 2 launched on time at 12:00 local time, in 0 deg C temperatures and 5 m/s winds. Launch was on time 'as in Korolev's time', notes Kamanin. Docking with Soyuz 3 a failure. Recovered October 28, 1968 7:51 GMT, 5 km from its aim point. Maneuver Summary: 177km X 196km orbit to 184km X 230km orbit. Delta V: 12 m/s.
    Officially: Complex testing of spaceship systems in conditions of space flight.

1968 October 26 - . 08:34 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC31. LV Family: R-7. Launch Vehicle: Soyuz 11A511.
  • Soyuz 3 - . Call Sign: Argon (Argon ). Crew: Beregovoi. Backup Crew: Shatalov; Volynov. Payload: Soyuz 7K-OK s/n 10. Mass: 6,575 kg (14,495 lb). Nation: USSR. Related Persons: Beregovoi; Shatalov; Volynov. Agency: MOM. Program: Soyuz. Class: Manned. Type: Manned spacecraft. Flight: Soyuz 3. Spacecraft: Soyuz 7K-OK. Duration: 3.95 days. Decay Date: 1968-10-30 . USAF Sat Cat: 3516 . COSPAR: 1968-094A. Apogee: 205 km (127 mi). Perigee: 183 km (113 mi). Inclination: 51.7000 deg. Period: 88.30 min. Second manned Soyuz flight. Rendezvoused with the unmanned Soyuz 2 but failed to dock. Complex testing of spaceship systems; development, in joint flight with space ship Soyuz 2 of processes of space ship manoeuvring and docking in artificial earth satellite orbit; development of elements of celestial navigation; conduct of research under space flight conditions. The failed docking was blamed on manual control of the Soyuz by Beregovoi, who repeatedly put the spacecraft in an orientation that nulled the automatic docking system. Beregovoi used nearly all of his orientation fuel in his first attempt to dock - of 80 kg allocated, only 8 to 10 kg was remaining. Additional Details: here....

1969 January 14 - . 07:30 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC31. LV Family: R-7. Launch Vehicle: Soyuz 11A511.
  • Soyuz 4 - . Call Sign: Amur (Amur - river). Crew: Shatalov. Backup Crew: Shonin. Payload: Soyuz 7K-OK (A) s/n 12. Mass: 6,625 kg (14,605 lb). Nation: USSR. Related Persons: Shatalov; Shonin. Agency: MOM. Program: Soyuz. Class: Manned. Type: Manned spacecraft. Flight: Soyuz 4; Soyuz 4/5. Spacecraft: Soyuz 7K-OK. Duration: 2.97 days. Decay Date: 1969-01-17 . USAF Sat Cat: 3654 . COSPAR: 1969-004A. Apogee: 224 km (139 mi). Perigee: 213 km (132 mi). Inclination: 51.7000 deg. Period: 88.80 min. Soyuz 4 is launched with Vladimir Shatalov aboard without further problems at 10:30. This time the rockets gyroscopes, the capsule communications, and the television camera all functioned perfectly. Volynov and his crew for Soyuz 5 watched the launch from Area 17. Later Soyuz 4 would dock with Soyuz 5, and following a transfer of two cosmonauts, return with Shatalov, Yevgeni Khrunov and Alexsei Yeliseyev from Soyuz 5. Official purpose: scientific, technical and medico-biological research, checking and testing of onboard systems and design elements of space craft, docking of piloted space craft and construction of an experimental space station, transfer of cosmonauts from one craft to another in orbit. This mission finally successfully completed the simulated lunar orbit docking and crew transfer mission attempted by Soyuz 1 in April 1967. In making the transfer Khrunov and Yeliseyev avoided the most spectacular survivable incident of the space age - the nose-first reentry of Soyuz 5, still attached to its service module.

1969 January 15 - . 07:04 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC1. LV Family: R-7. Launch Vehicle: Soyuz 11A511.
  • Soyuz 5 - . Call Sign: Baikal (Baikal - lake in Siberia). Crew: Khrunov; Volynov; Yeliseyev. Backup Crew: Filipchenko; Gorbatko; Kubasov. Payload: Soyuz 7K-OK (P) s/n 13. Mass: 6,585 kg (14,517 lb). Nation: USSR. Related Persons: Khrunov; Volynov; Yeliseyev; Filipchenko; Gorbatko; Kubasov. Agency: MOM. Program: Soyuz. Class: Manned. Type: Manned spacecraft. Flight: Soyuz 5; Soyuz 4/5. Spacecraft: Soyuz 7K-OK. Duration: 3.04 days. Decay Date: 1969-01-18 . USAF Sat Cat: 3656 . COSPAR: 1969-005A. Apogee: 212 km (131 mi). Perigee: 196 km (121 mi). Inclination: 51.7000 deg. Period: 88.60 min. At 3 am an An-12 arrives from Moscow with ten newspapers, and letters for Shatalov, to be delivered by the Soyuz 5 crew to him as the first 'space mail'. At 05:15 the State Commission convened and approved launch at 10:04:30. The countdown proceeds normally; meanwhile communications sessions are held with Shatalov on Soyuz 4. The commission is taken by automobile convoy from Area 2, to Area 17, where the Soyuz 5 crew declares itself ready for flight. At T-25 minutes, with the crew already aboard the spacecraft, a piece of electrical equipment fails and needs to be replaced. Engineer-Captain Viktor Vasilyevich Alyeshin goes to the fuelled booster and replaces it. While doing this he notices that the access hatch has been secured with only three bolts, instead of the four required. Nevertheless the launch proceeds successfully. After Soyuz 5 is in orbit, it and Soyuz 4 begin their mutual series of manoeuvres for rendezvous and docking. Officially the flight conducted scientific, technical and medico-biological research, checking and testing of onboard systems and design elements of space craft, docking of piloted space craft and construction of an experimental space station, transfer of cosmonauts from one craft to another in orbit.

1969 October 11 - . 11:10 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC31. LV Family: R-7. Launch Vehicle: Soyuz 11A511.
  • Soyuz 6 - . Call Sign: Antey (Antaeus - mythological giant). Crew: Kubasov; Shonin. Backup Crew: Shatalov; Yeliseyev. Payload: Soyuz 7K-OK s/n 14. Mass: 6,577 kg (14,499 lb). Nation: USSR. Related Persons: Kubasov; Shonin; Shatalov; Yeliseyev. Agency: MOM. Program: Soyuz. Class: Manned. Type: Manned spacecraft. Flight: Soyuz 6; Soyuz 7; Soyuz 8. Spacecraft: Soyuz 7K-OK. Duration: 4.95 days. Decay Date: 1969-10-16 . USAF Sat Cat: 4122 . COSPAR: 1969-085A. Apogee: 218 km (135 mi). Perigee: 212 km (131 mi). Inclination: 51.6000 deg. Period: 88.80 min. Tested spacecraft systems and designs, manoeuvring of space craft with respect to each other in orbit, conducted scientific, technical and medico-biological experiments in group flight. Carried Vulkan welding furnace for vacuum welding experiments in depressurized orbital module. Was to have taken spectacular motion pictures of Soyuz 7 - Soyuz 8 docking but failure of rendezvous electronics in all three craft due to new helium pressurization integrity test prior to mission did not permit successful rendezvous and dockings. Additional Details: here....

1969 October 12 - . 10:44 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC1. LV Family: R-7. Launch Vehicle: Soyuz 11A511.
  • Soyuz 7 - . Call Sign: Buran (Snowstorm ). Crew: Filipchenko; Gorbatko; Volkov. Backup Crew: Kolodin; Shatalov; Yeliseyev. Payload: Soyuz 7K-OK s/n 15. Mass: 6,570 kg (14,480 lb). Nation: USSR. Related Persons: Shonin; Kubasov; Mishin; Filipchenko; Gorbatko; Volkov; Kolodin; Shatalov; Yeliseyev. Agency: MOM. Program: Soyuz. Class: Manned. Type: Manned spacecraft. Flight: Soyuz 6; Soyuz 7; Soyuz 8. Spacecraft: Soyuz 7K-OK. Duration: 4.94 days. Decay Date: 1969-10-17 . USAF Sat Cat: 4124 . COSPAR: 1969-086A. Apogee: 223 km (138 mi). Perigee: 210 km (130 mi). Inclination: 51.7000 deg. Period: 88.80 min. Tested spacecraft systems and designs, manoeuvring of space craft with respect to each other in orbit, conducted scientific, technical and medico-biological experiments in group flight. Was to have docked with Soyuz 8 and transferred crew while Soyuz 6 took film from nearby. However failure of rendezvous electronics in all three craft due to a new helium pressurization integrity test prior to the mission did not permit successful rendezvous and dockings. Additional Details: here....

1969 October 13 - . 10:19 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC31. LV Family: R-7. Launch Vehicle: Soyuz 11A511.
  • Soyuz 8 - . Call Sign: Granit (Granite ). Crew: Shatalov; Yeliseyev. Backup Crew: Nikolayev; Sevastyanov. Payload: Soyuz 7K-OK s/n 16. Mass: 6,646 kg (14,651 lb). Nation: USSR. Related Persons: Shatalov; Yeliseyev; Nikolayev; Sevastyanov. Agency: MOM. Program: Soyuz. Class: Manned. Type: Manned spacecraft. Flight: Soyuz 6; Soyuz 7; Soyuz 8. Spacecraft: Soyuz 7K-OK. Duration: 4.95 days. Decay Date: 1969-10-18 . USAF Sat Cat: 4126 . COSPAR: 1969-087A. Apogee: 227 km (141 mi). Perigee: 201 km (124 mi). Inclination: 51.7000 deg. Period: 88.70 min. Tested spacecraft systems and designs, manoeuvring of space craft with respect to each other in orbit, conducted scientific, technical and medico-biological experiments in group flight. Was to have docked with Soyuz 7 and transferred crew while Soyuz 6 took film from nearby. However failure of rendezvous electronics in all three craft due to a new helium pressurization integrity test prior to the mission did not permit successful rendezvous and dockings. Recovered October 18, 1969 10:19 GMT. Additional Details: here....

1970 June 1 - . 19:00 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC31. LV Family: R-7. Launch Vehicle: Soyuz 11A511.
  • Soyuz 9 - . Call Sign: Sokol (Falcon ). Crew: Nikolayev; Sevastyanov. Backup Crew: Filipchenko; Grechko. Support Crew: Lazarev; Yazdovsky. Payload: Soyuz 7K-OK s/n 17. Mass: 6,590 kg (14,520 lb). Nation: USSR. Related Persons: Nikolayev; Sevastyanov; Filipchenko; Grechko; Lazarev; Yazdovsky. Agency: MOM. Program: Soyuz. Class: Manned. Type: Manned spacecraft. Flight: Soyuz 9. Spacecraft: Soyuz 7K-OK. Duration: 17.71 days. Decay Date: 1970-06-19 . USAF Sat Cat: 4407 . COSPAR: 1970-041A. Apogee: 227 km (141 mi). Perigee: 176 km (109 mi). Inclination: 51.6000 deg. Period: 88.50 min. Summary: Manned flight endurance test. Medico-biological, scientific and technical studies and experiments in prolonged orbital flight. Inconclusive results due to slow sun-oriented rotation of spacecraft to conserve fuel producing motion sickness in cosmonauts.. Additional Details: here....

1971 March 26 - . LV Family: R-7. Launch Vehicle: Soyuz 11A511.
  • Yantar-1FKT development authorised. - . Nation: USSR. Spacecraft: Yantar-1KFT. Summary: Central Committee of the Communist Party and Council of Soviet Ministers Decree 182-63 'On development of the Yantar-1KFT reconnaissance and cartographic satellite and the 11A511K launcher' was issued..

1971 April 22 - . 23:54 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC1. LV Family: R-7. Launch Vehicle: Soyuz 11A511. LV Configuration: Soyuz 11A511 25.
  • Soyuz 10 - . Call Sign: Granit (Granite ). Crew: Rukavishnikov; Shatalov; Yeliseyev. Backup Crew: Kolodin; Kubasov; Leonov. Support Crew: Dobrovolsky; Patsayev; Volkov. Payload: Soyuz 7K-OKS s/n 31. Mass: 6,800 kg (14,900 lb). Nation: USSR. Related Persons: Rukavishnikov; Shatalov; Yeliseyev; Kolodin; Kubasov; Leonov; Dobrovolsky; Patsayev; Volkov. Agency: MOM. Program: Salyut. Class: Manned. Type: Manned spacecraft. Flight: Soyuz 10. Spacecraft: Soyuz 7KT-OK. Duration: 1.99 days. Decay Date: 1971-04-24 . USAF Sat Cat: 5172 . COSPAR: 1971-034A. Apogee: 258 km (160 mi). Perigee: 209 km (129 mi). Inclination: 51.6000 deg. Period: 89.10 min. Intended first space station mission; soft docked with Salyut 1. Launch nearly scrubbed due to poor weather. Soyuz 10 approached to 180 m from Salyut 1 automatically. It was hand docked after faillure of the automatic system, but hard docking could not be achieved because of the angle of approach. Post-flight analysis indicated that the cosmonauts had no instrument to proivde the angle and range rate data necessary for a successful manual docking. Soyuz 10 was connected to the station for 5 hours and 30 minutes. Despite the lack of hard dock, it is said that the crew were unable to enter the station due to a faulty hatch on their own spacecraft. When Shatalov tried to undock from the Salyut, the jammed hatch impeded the docking mechanism, preventing undocking. After several attempts he was unable to undock and land.

1971 June 6 - . 04:55 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC1. LV Family: R-7. Launch Vehicle: Soyuz 11A511.
  • Soyuz 11 - . Call Sign: Yantar (Amber ). Crew: Dobrovolsky; Patsayev; Volkov. Backup Crew: Kolodin; Kubasov; Leonov. Payload: Soyuz 7K-OKS s/n 32. Mass: 6,790 kg (14,960 lb). Nation: USSR. Related Persons: Dobrovolsky; Patsayev; Volkov; Kolodin; Kubasov; Leonov. Agency: MOM. Program: Salyut. Class: Manned. Type: Manned spacecraft. Flight: Soyuz 11. Spacecraft: Soyuz 7KT-OK. Duration: 23.77 days. Decay Date: 1971-06-29 . USAF Sat Cat: 5283 . COSPAR: 1971-053A. Apogee: 237 km (147 mi). Perigee: 163 km (101 mi). Inclination: 51.5000 deg. Period: 88.40 min. First space station flight, two years before the American Skylab. The Soyuz 11 launch proceeds without any difficulties. The first orbital correction in the set of rendezvous manoeuvres to head for Salyut 1 is made on the fourth revolution. At 15:00 Kamanin and other critical staff board a plane for the mission control centre at Yevpatoriya. The aircraft takes 4 hours 30 minutes to get there.

    Equipment aboard Salyut 1 included a telescope, spectrometer, electrophotometer, and television. The crew checked improved on-board spacecraft systems in different conditions of flight and conducted medico-biological research. The main instrument, a large solar telescope, was inoperative because its cover failed to jettison. A small fire and difficult working conditions will lead to a decision to return crew before planned full duration of 30 days.


1972 June 26 - . 14:53 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC1. LV Family: R-7. Launch Vehicle: Soyuz 11A511.
  • Cosmos 496 - . Payload: Soyuz 7K-T s/n 33L. Mass: 6,675 kg (14,715 lb). Nation: USSR. Agency: MOM. Program: Salyut. Class: Manned. Type: Manned spacecraft. Spacecraft: Soyuz 7K-T. Duration: 9.95 days. Decay Date: 1972-07-02 . USAF Sat Cat: 6066 . COSPAR: 1972-045A. Apogee: 253 km (157 mi). Perigee: 176 km (109 mi). Inclination: 51.5000 deg. Period: 88.70 min. Summary: Recovered July 6, 1972 13:54 GMT. Soyuz 7K-T redesign test..

1973 June 15 - . 06:00 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC1. LV Family: R-7. Launch Vehicle: Soyuz 11A511.
  • Cosmos 573 - . Payload: Soyuz 7K-T s/n 35. Mass: 6,675 kg (14,715 lb). Nation: USSR. Agency: MOM. Program: Salyut. Class: Manned. Type: Manned spacecraft. Spacecraft: Soyuz 7K-T. Duration: 2.00 days. Decay Date: 1973-06-17 . USAF Sat Cat: 6694 . COSPAR: 1973-041A. Apogee: 308 km (191 mi). Perigee: 191 km (118 mi). Inclination: 51.6000 deg. Period: 89.50 min. Summary: Soyuz test flight. Recovered June 17, 1973 6:01 GMT. Soyuz 7K-T redesign test, probably using one of the spacecraft allocated to the failed Salyut 2 or Cosmos 557 stations..

1973 September 27 - . 12:18 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC1. LV Family: R-7. Launch Vehicle: Soyuz 11A511.
  • Soyuz 12 - . Call Sign: Ural (Urals ). Crew: Lazarev; Makarov. Backup Crew: Grechko; Gubarev. Support Crew: Klimuk; Sevastyanov. Payload: Soyuz 7K-T s/n 36. Mass: 6,720 kg (14,810 lb). Nation: USSR. Related Persons: Lazarev; Makarov; Grechko; Gubarev; Klimuk; Sevastyanov. Agency: MOM. Program: Salyut. Class: Manned. Type: Manned spacecraft. Flight: Soyuz 12. Spacecraft: Soyuz 7K-T. Duration: 1.97 days. Decay Date: 1973-09-29 . USAF Sat Cat: 6836 . COSPAR: 1973-067A. Apogee: 348 km (216 mi). Perigee: 306 km (190 mi). Inclination: 51.0000 deg. Period: 91.00 min. Experimental flight for the purpose of further development of manned space craft Soyuz 7K-T modifications. After the Soyuz 11 disaster, the Soyuz underwent redesign for increased reliability. Two solo test flights of the new design were planned. Crews for the first flight were those already planned for the deferred follow-on missions to the failed DOS 2 and DOS 3 space stations.

1973 November 30 - . 05:20 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC1. LV Family: R-7. Launch Vehicle: Soyuz 11A511.
  • Cosmos 613 - . Payload: Soyuz 7K-T s/n 34L. Mass: 6,675 kg (14,715 lb). Nation: USSR. Agency: MOM. Program: Salyut. Class: Manned. Type: Manned spacecraft. Spacecraft: Soyuz 7K-T. Duration: 60.00 days. Decay Date: 1974-01-29 . USAF Sat Cat: 6957 . COSPAR: 1973-096A. Apogee: 276 km (171 mi). Perigee: 199 km (123 mi). Inclination: 51.6000 deg. Period: 89.30 min. Summary: Unmanned Soyuz test flight. Recovered January 29, 1974 5:29 GMT. Soyuz 7K-T duration test..

1973 December 18 - . 11:55 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC1. LV Family: R-7. Launch Vehicle: Soyuz 11A511.
  • Soyuz 13 - . Call Sign: Kavkas (Caucasus ). Crew: Klimuk; Lebedev. Backup Crew: Vorobyov; Yazdovsky. Payload: Soyuz 7K-T s/n 33A. Mass: 6,560 kg (14,460 lb). Nation: USSR. Related Persons: Klimuk; Lebedev; Vorobyov; Yazdovsky. Agency: MOM. Program: Salyut. Class: Manned. Type: Manned spacecraft. Flight: Soyuz 13. Spacecraft: Soyuz 7K-T. Duration: 7.87 days. Decay Date: 1973-12-26 . USAF Sat Cat: 6982 . COSPAR: 1973-103A. Apogee: 247 km (153 mi). Perigee: 188 km (116 mi). Inclination: 51.6000 deg. Period: 88.80 min. A unique flight of the 7K-T/AF modification of the Soyuz spacecraft. The orbital module was dominated by the large Orion 2 astrophysical camera. The crew conducted astrophysical observations of stars in the ultraviolet range. Additional experiments included spectrozonal photography of specific areas of the earth's surface, and continued testing of space craft's on-board systems.

1974 May 27 - . 07:20 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC1. LV Family: R-7. Launch Vehicle: Soyuz 11A511.
  • Cosmos 656 - . Payload: Soyuz 7K-T(A9) s/n 61. Mass: 6,675 kg (14,715 lb). Nation: USSR. Agency: MOM. Program: Almaz. Class: Manned. Type: Manned spacecraft. Spacecraft: Soyuz 7K-T/A9. Duration: 2.01 days. Decay Date: 1974-05-29 . USAF Sat Cat: 7313 . COSPAR: 1974-036A. Apogee: 364 km (226 mi). Perigee: 195 km (121 mi). Inclination: 51.6000 deg. Period: 90.00 min. Summary: Unmanned test flight of the Soyuz 7K-T(A9) Soyuz variant designed for docking with the military Almaz space station. Recovered May 29, 1974 7:50 GMT..

1974 July 3 - . 18:51 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC1. LV Family: R-7. Launch Vehicle: Soyuz 11A511.
  • Soyuz 14 - . Call Sign: Berkut (Golden Eagle ). Crew: Artyukhin; Popovich. Backup Crew: Demin; Sarafanov. Support Crew: Rozhdestvensky; Volynov; Zholobov; Zudov. Payload: Soyuz 7K-T(A9) s/n 62. Mass: 6,800 kg (14,900 lb). Nation: USSR. Related Persons: Artyukhin; Popovich; Demin; Sarafanov; Rozhdestvensky; Volynov; Zholobov; Zudov. Agency: MOM. Program: Almaz. Class: Manned. Type: Manned spacecraft. Flight: Soyuz 14. Spacecraft: Soyuz 7K-T/A9. Duration: 15.73 days. Decay Date: 1974-07-19 . USAF Sat Cat: 7361 . COSPAR: 1974-051A. Apogee: 217 km (134 mi). Perigee: 195 km (121 mi). Inclination: 51.6000 deg. Period: 88.60 min. On 4 July Soyuz 14 docked with the Salyut 3 space station after 15 revolutions of the earth. The planned experimental program included manned military reconnaissance of the earth's surface, assessing the fundamental value of such observations, and some supplemental medico-biological research. After the crew's return research continued in the development of the on-board systems and the principles of remote control of such a station.

1974 August 26 - . 19:58 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC1. LV Family: R-7. Launch Vehicle: Soyuz 11A511.
  • Soyuz 15 - . Call Sign: Duna (Danube ). Crew: Demin; Sarafanov. Backup Crew: Volynov; Zholobov. Support Crew: Rozhdestvensky; Zudov. Payload: Soyuz 7K-T(A9) s/n 63. Mass: 6,760 kg (14,900 lb). Nation: USSR. Related Persons: Demin; Sarafanov; Volynov; Zholobov; Rozhdestvensky; Zudov. Agency: MOM. Program: Almaz. Class: Manned. Type: Manned spacecraft. Flight: Soyuz 15. Spacecraft: Soyuz 7K-T/A9. Duration: 2.01 days. Decay Date: 1974-08-28 . USAF Sat Cat: 7421 . COSPAR: 1974-067A. Apogee: 236 km (146 mi). Perigee: 173 km (107 mi). Inclination: 51.6000 deg. Period: 88.50 min. Soyuz 15 was to conduct the second phase of manned operations aboard the Salyut 3 military space station, but the Igla rendezvous system failed and no docking was made. The two day flight could only be characterised as '... research in manoeuvring and docking with the OPS in various modes, and development of methods for evacuation and landing from space complex in new conditions....'

    As Chelomei had complained, Soyuz had no reserves or backup systems for repeated manual docking attempts and had to be recovered after a two-day flight. The state commission found that the Igla docking system of the Soyuz needed serious modification. This could not be completed before Salyut 3 decayed. Therefore the planned Soyuz 16 spacecraft became excess to the program (it was later flown as Soyuz 20 to a civilian Salyut station, even though over its two year rated storage life).

    Officially: Conduct of joint experiments with the Salyut-3 orbital scientific station.


1975 January 10 - . 21:43 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC1. LV Family: R-7. Launch Vehicle: Soyuz 11A511.
  • Soyuz 17 - . Call Sign: Zenit (Zenith ). Crew: Grechko; Gubarev. Backup Crew: Lazarev; Makarov. Support Crew: Klimuk; Sevastyanov. Payload: Soyuz 7K-T s/n 38. Mass: 6,800 kg (14,900 lb). Nation: USSR. Related Persons: Grechko; Gubarev; Lazarev; Makarov; Klimuk; Sevastyanov. Agency: MOM. Program: Salyut. Class: Manned. Type: Manned spacecraft. Flight: Soyuz 17. Spacecraft: Soyuz 7K-T. Duration: 29.56 days. Decay Date: 1975-02-09 . USAF Sat Cat: 7604 . COSPAR: 1975-001A. Apogee: 249 km (154 mi). Perigee: 185 km (114 mi). Inclination: 51.6000 deg. Period: 88.80 min. Summary: Manned two crew. Docked with Salyut 4. Joint experiments with the Salyut scientific orbital station..

1975 April 5 - . 11:04 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC1. LV Family: R-7. Launch Vehicle: Soyuz 11A511. FAILURE: During second-third stage separation third stage failed to separate from second stage but still ignited.. Failed Stage: 3.
  • Soyuz 18-1 - . Call Sign: Ural (Urals ). Crew: Lazarev; Makarov. Backup Crew: Klimuk; Sevastyanov. Payload: Soyuz 7K-T s/n 39. Mass: 6,830 kg (15,050 lb). Nation: USSR. Related Persons: Lazarev; Makarov; Klimuk; Sevastyanov. Agency: RVSN. Program: Salyut. Class: Manned. Type: Manned spacecraft. Flight: Soyuz 18-1. Spacecraft: Soyuz 7K-T. Duration: 0.0149 days. Decay Date: 1975-04-05 . COSPAR: F750405A. Apogee: 192 km (119 mi). Carried Oleg Makarov, Vasili Lazarev for rendezvous with Salyut 4; but during second-third stage seperation third stage failed to separate from second stage but still ignited. The crew demanded that the abort procedures be implemented but ground control could not see the launch vehicle gyrations in their telemetry. Soyuz finally was separated from by ground control command at 192 km, and following a 20.6+ G reentry, the capsule landed in the Altai mountains, tumbled down a mountainside, and snagged in some bushes just short of a precipice. The crew was worried that they may have landed in China and would face internment, but after an hour sitting in the cold next to the capsule, they were discovered by locals speaking Russian. Total flight duration was 1574 km and flight time 21 minutes 27 seconds. Lazarev suffered internal injuries from the high-G reentry and tumble down the mountain side and never flew again. Both cosmonauts were denied their 3000 ruble spaceflight bonus pay and had to apeal all the way to Brezhnev before being paid.

1975 May 24 - . 14:58 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC1. LV Family: R-7. Launch Vehicle: Soyuz 11A511.
  • Soyuz 18 - . Call Sign: Kavkas (Caucasus ). Crew: Klimuk; Sevastyanov. Backup Crew: Kovalyonok; Ponomaryov. Payload: Soyuz 7K-T s/n 40. Mass: 6,825 kg (15,046 lb). Nation: USSR. Related Persons: Klimuk; Sevastyanov; Kovalyonok; Ponomaryov. Agency: MOM. Program: Salyut. Class: Manned. Type: Manned spacecraft. Flight: Soyuz 18. Spacecraft: Soyuz 7K-T. Duration: 62.97 days. Decay Date: 1975-07-26 . USAF Sat Cat: 7818 . COSPAR: 1975-044A. Apogee: 230 km (140 mi). Perigee: 186 km (115 mi). Inclination: 51.7000 deg. Period: 88.60 min. Summary: Manned two crew. Docked with Salyut 4. Joint experiments with the Salyut scientific orbital station. The crew remained aloft aboard the station during the Apollo-Soyuz Test Project joint flight..

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