Encyclopedia Astronautica
Soyuz ASTP BO


Russian manned spacecraft module. 4 launches, 1974.04.03 (Cosmos 638) to 1975.07.15 (Soyuz 19 (ASTP)). Universal docking system designed for ASTP with three petaled locating system and internal transfer tunnel. No automated rendezvous and docking system. Living section.

Collar Length: 0.33 m. Petal Length: 0.39 m. Base Diameter: 1.3 m. Ring Diameter: 1.2 m. No automated rendezvous and docking system (Apollo performed active docking). Four windows, BO separated after retrofire.

Habitable Volume: 5.00 m3. Structure: 700 kg (1,540 lb). Recovery Equipment: 324 kg (714 lb). Electrical Equipment: 50 kg (110 lb). Communications Systems: 50 kg (110 lb). Crew Seats and Provisions: 100 kg (220 lb). Battery: 10,500.00 Ah.

AKA: Bytovoy otsek.
Gross mass: 1,224 kg (2,698 lb).
Height: 3.10 m (10.10 ft).
Diameter: 2.26 m (7.41 ft).

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Associated Countries
Associated Spacecraft
  • Soyuz 7K-TM Russian manned spacecraft. 4 launches, 1974.04.03 (Cosmos 638) to 1975.07.15 (Soyuz 19 (ASTP)). The Soyuz 7K-T as modified for the docking with Apollo. More...

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