Encyclopedia Astronautica
Salyut 6 EP-4



Salyut6d.jpg
Salyut 6 Detail
Credit: © Mark Wade
Crew: Bykovsky, Jaehn. First German astronaut. Manned two crew. Docked with Salyut 6. Mission to swap Soyuz lifeboats docked to station. Backup crew: Gorbatko, Koellner.

Manned two crew. Docked with Salyut 6. Delivered to the Salyut-6 station the third international 'Intercosmos' crew consisting of V F Bykovsky (USSR) and S Jaehn (German Democratic Republic) to carry out scientific research and experiments. Jaehn's program focused on materials sciences, Earth observations, and life sciences. The crew returned aboard Soyuz 29, leaving the EO-2 crew with Soyuz 31 as a fresh Soyuz lifeboat.

AKA: Yastreb (Hawk ); Soyuz 31.
First Launch: 1978.08.26.
Last Launch: 1978.09.03.
Duration: 7.87 days.

More... - Chronology...


Associated People
  • Bykovsky Bykovsky, Valeri Fyodorovich (1934-) Russian pilot cosmonaut. Flew on Vostok 5, Soyuz 22, Salyut 6 EP-4. More...
  • Gorbatko Gorbatko, Viktor Vassilyevich (1934-) Russian pilot cosmonaut. Flew on Soyuz 7, Soyuz 24, Salyut 6 EP-7. More...
  • Jaehn Jaehn, Sigmund Werner Paul 'Sig' (1937-) German pilot cosmonaut. Flew on Salyut 6 EP-4. First German astronaut. More...
  • Koellner Koellner, Eberhard 'Eb' (1939-) German pilot cosmonaut, 1976-1978. More...
  • Ivanchenkov Ivanchenkov, Aleksandr Segeyevich (1940-) Russian engineer cosmonaut. Flew on Salyut 6 EO-2, Salyut 7 EP-1. Graduated MAI, 1964 Civilian Engineer, Korolev OKB. Trained for a Buran flight. From 1993 served as deputy director of 29th Department, RKK Energia. More...
  • Kovalyonok Kovalyonok, Vladimir Vasilyevich (1942-) Belarusian pilot cosmonaut. Flew on Soyuz 25, Salyut 6 EO-2, Salyut 6 EO-6. More...

See also
Associated Programs
  • Salyut 6 Mishin was authorised in December 1973 to build an improved design DOS-5 version of the Salyut station using Almaz facilities. Mishin's bureau borrowed the two docking port configuration of Chelomei's Almaz OPS-2 This station's second docking port would allow rotation of crews and resupply/refueling using unmanned Progress spacecraft. More...

Salyut 6 EP-4 Chronology


1978 August 26 - . 14:51 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC1. LV Family: R-7. Launch Vehicle: Soyuz 11A511U.
  • Soyuz 31 - . Call Sign: Yastreb (Hawk ). Crew: Bykovsky; Jaehn. Backup Crew: Gorbatko; Koellner. Payload: Soyuz 7K-T s/n 47. Mass: 6,800 kg (14,900 lb). Nation: USSR. Related Persons: Bykovsky; Jaehn; Gorbatko; Koellner. Agency: MOM. Program: Salyut 6. Class: Manned. Type: Manned spacecraft. Flight: Salyut 6 EP-4; Salyut 6 EO-2. Spacecraft: Soyuz 7K-T. Duration: 67.84 days. Decay Date: 1978-11-02 . USAF Sat Cat: 11010 . COSPAR: 1978-081A. Apogee: 243 km (150 mi). Perigee: 193 km (119 mi). Inclination: 51.6000 deg. Period: 88.80 min. Summary: Manned two crew. Docked with Salyut 6. Delivered to the Salyut-6 station the third international 'Intercosmos' crew consisting of V F Bykovsky (USSR) and S Jaehn (German Democratic Republic) to carry out scientific research and experiments..

1978 September 3 - .
Home - Browse - Contact
© / Conditions for Use