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Soyuz 27
Part of Salyut Family
First docking to a space station of two manned spacecraft at one time. First station 'lifeboat' swap. First crew to visit another already aboard a space station.

AKA: Pamir (Pamir mountains);Salyut 6 EP-1. Launched: 1978-01-10. Returned: 1978-01-16. Number crew: 2 . Duration: 5.96 days.

First crew to visit another already aboard a space station.

Narrative (adapted from D S F Portree's Mir Hardware Heritage, NASA RP-1357, 1995)

Soyuz 27 docked without incident at the front port of Salyut 6 carrying cosmonauts Oleg Makarov and Vladimir Dzhanibekov, who formed the first Visiting Expedition crew in the Soviet space station program (or, for that matter, in any space station program). For the docking, the Tamyrs withdrew to their Soyuz 26 spacecraft and sealed the hatch into Salyut 6 behind them. This was done in the event of a depressurization emergency associated with the docking of Soyuz 27. There was also some concern that stresses and vibrations produced when the 7-ton Soyuz 27 spacecraft contacted the front port might transmit through Salyut 6, forcibly uncoupling Soyuz 26 from the rear port. The Soyuz 27-Salyut 6-Soyuz 26 combination massed about 33,000 kg and featured seven compartments: two descent modules, two orbital modules, the transfer compartment, the work compartment, and the small aft intermediate compartment. The four cosmonauts conducted many experiments, including Rezonans, which was designed to determine if resonant frequencies might threaten the structural integrity of the three-spacecraft combination. The experiment called for the cosmonauts to jump around Salyut 6 on command from the TsUP. The guest crew spent 5 days on Salyut 6, then returned to Earth in Soyuz 26, leaving the fresh Soyuz 27 spacecraft for the Tamyrs. This was the first of many such spacecraft swaps.


More at: Soyuz 27.

Family: Manned spaceflight. People: Dzhanibekov, Makarov. Spacecraft: Salyut 6. Bibliography: 182.

1978 January 10 - . 12:26 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC1. LV Family: R-7. Launch Vehicle: Soyuz-U.
  • Soyuz 27 - . Call Sign: Pamir (Pamir mountains). Crew: Dzhanibekov, Makarov. Backup Crew: Ivanchenkov, Kovalyonok. Payload: Soyuz 7K-T s/n 44. Mass: 6,800 kg (14,900 lb). Nation: Russia. Related Persons: Dzhanibekov, Ivanchenkov, Kovalyonok, Makarov. Agency: MOM. Program: Salyut 6. Class: Manned. Type: Manned spacecraft. Flight: Soyuz 26, Soyuz 27. Spacecraft Bus: Soyuz. Spacecraft: Soyuz 7K-T. Duration: 64.95 days. Decay Date: 1978-03-16 . USAF Sat Cat: 10560 . COSPAR: 1978-003A. Apogee: 237 km (147 mi). Perigee: 190 km (110 mi). Inclination: 51.7000 deg. Period: 88.70 min. Manned two crew. Carried Oleg Makarov, Vladimir Dzhanibekov to Salyut 6; returned crew of Soyuz 26 to Earth. Docked with Salyut 6..

1978 January 16 - .

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