'Transport Modified') were fourth generation (1986–2002) Soyuz spacecraft used for ferry flights to the Mir and ISS space stations.

[4] The other was to use a Visiting Expedition to fly a new Soyuz up to the station and depart with the spacecraft nearing the end of its rated endurance.

[5] With the growth of orbital complexes, the Soyuz-T used the Igla system that required continuous orientation with the station and had high fuel costs.

For Soyuz launches, the Ministry of Defense representative states that everything has been checked because all preparations at Baikonur are performed by the military.

[8] Cosmonauts had to get clearance from the Russian Medical Commission, the Institute of Biomedical Problems and the GCTC at the flight readiness Review.