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Soyuz 25A

Spacecraft

Original archive entry. The text, images and links below are kept as they were written.

Almaz 1
Almaz 1
Credit: Manufacturer Image

Mission to the Salyut 5 space station, cancelled when fuel reserves aboard the station were 70 kg below those required for the planned 14 day mission.

A Soyuz 25 mission to the Salyut 5 space station with the crew of Berezovoi and Lisun was to have followed Soyuz 24. However during the four months it took to prepare the Soyuz, Salyut 5 consumed higher than expected fuel in maintaining the station's orientation. As a result, in the opinion of Glushko (Chief Designer of the Soyuz), the fuel reserves were 70 kg below those required for the planned 14 day mission. He therefore refused to ready another Soyuz for the mission. The flight was cancelled over the objections of Chelomei. The spacecraft allocated for Soyuz-25 flew as Soyuz 30 to Glushko's civilian Salyut station.

Chronology

1 event

1977 July

  • Soyuz 25A (cancelled) - . Crew: Berezovoi, Lisun. Backup Crew: Kozelsky, Preobrazhensky. Nation: Russia. Related Persons: Chelomei, Glushko. Program: Almaz. Flight: Soyuz 25A. Spacecraft Bus: Soyuz. Spacecraft: Soyuz 7K-T.

    A Soyuz 25 mission to the Salyut 5 space station with the crew of Berzovoi and Lisun was to have followed Soyuz 24. However during the four months it took to prepare the Soyuz, Salyut 5 consumed higher than expected fuel in maintaining the station's orientation. The flight was cancelled and the spacecraft allocated for Soyuz 25 flew as Soyuz 30 to Glushko's civilian Salyut station.