Soyuz 27

This article is about the Soyuz 27 spacecraft. For the crew launched in Soyuz 27, see Salyut 6 EP-1.

Soyuz 27

COSPAR ID	1978-003A
SATCAT no.	10560
Crew
Members	2

Soyuz 27 (Template:Lang-ru, Union 27) was a 1978 Soviet manned spacecraft which flew to the orbiting Salyut 6 space station, during the mission EP-1. It was the third manned flight to the station, and the second successful docking. Once docked, it marked the first time that three spacecraft were docked together.

The main function of the EP-1 mission was to swap Soyuz craft with the orbiting crew, in so doing freeing a docking port for a forthcoming supply tanker. Cosmonauts Vladimir Dzhanibekov and Oleg Makarov returned to earth in the Soyuz 26 spacecraft after spending five days on the station.

Crew

Position	Launching Cosmonaut	Landing Cosmonaut
Commander	Vladimir Dzhanibekov EP-1 First spaceflight	Yuri Romanenko EO-1 First spaceflight
Flight Engineer	Oleg Makarov EP-1 Third spaceflight	Georgi Grechko EO-1 Second spaceflight

Backup crew

Position	Cosmonaut
Commander	Vladimir Kovalyonok
Flight Engineer	Aleksandr Ivanchenkov
The launching and landing crews had the same backups

Mission parameters

• Mass: 6,800 kg (15,000 lb)
• Perigee: 198.9 km (123.6 mi)
• Apogee: 253.8 km (157.7 mi)
• Inclination: 51.65°
• Period: 88.73 minutes

External links

• http://www.astronautix.com/flights/soyuz27.htm
• http://www.spacefacts.de/mission/english/soyuz-27.htm
• http://www.terra.es/personal/heimdall/eng/soyuz27.htm
• http://www.zarya.info/Diaries/Salyut6/Occupation1.htm
• http://books.nap.edu/books/0309085489/html/index.html