"Cosmonaut Yuri Gagarin" is a research ship, flagship of the space research service of the USSR. It was built in Leningrad in 1971. The length of the eleven-decked ship was 231,6 m, width - 32 m, power of the main engine - 14 000 KW, speed - eighteen knots, displacement - 45000 tons. The crew consisted of136 persons, expedition crew - 212 persons. There were 1250 premises aboard including 86 laboratories. The ship was
intended to perform tasks related to control and communication with satellite vehicles and the Mission Control Centre through the satellite vehicle "Molniya" ("Lightning"). The ship had 75 antennas including two antennas with parabolic reflectors with diameter of 25 meters. It could be in autonomous sailing for 130 days. "Cosmonaut Yuri Gagarin" was functioning in the Atlantic Ocean.