Soyuz 32 (Russian: Союз 32, Union 32) was a 1979 Soviet crewed space flight to the Salyut 6 space station. It was the eighth mission to and seventh successful docking at the orbiting facility. The Soyuz 32 crew was the third long-duration crew to man the space station. Cosmonauts Vladimir Lyakhov and Valery Ryumin spent 175 days in space, setting a new space endurance record. Because of the failure of a visiting crew (Soyuz 33) to successfully dock and the resultant decision to send an uncrewed Soyuz craft (Soyuz 34) as a replacement return vehicle, the Soyuz 32 crew had no visitors in the Salyut 6 space station.
Crew
Mission parameters Mass: 6,800 kg (15,000 lb) Perigee: 198.4 km (123.3 mi) Apogee: 274.3 km (170.4 mi) Inclination: 51.61° Period: 89.94 minutes
Mission highlights
Launch and station activation Soyuz 32 was launched with its two-man crew on 25 February 1979. The crew's main mission was to overhaul the Salyut 6 space station's systems and prepare it for further long-duration crews. They would also attempt a new record duration flight. Soyuz 32 docked with Salyut 6 the next day, and Lyakhov and Ryumin, the third long-duration crew at the station, commenced de-mothballing the facility which had been vacant since November. When the hatch to the station was opened, the cosmonauts smelled burnt steel, a scent Ryumin called the odor of space. The crew started routine activities and two types of medical exams. The first included daily checks of mood, their accomplishments and food intake. The second checked their psychological condition via observing their frequent communication sessions. Their cardiovascular systems were checked every 8 to 10 days, and their body masses measured. By the second week, they exercised 2.5 hours a day, averaged 3,100 calories of daily food intake with 2.5 litres of water. The orbit of the station was raised by the Soyuz craft's propulsion system 1 March. What the Soviets did not then report was that the Salyut station's propulsion system was having problems. Experiments included hatching quail eggs, but the chicks grew much slower than on Earth, and lacked heads. A videotape recorder was fixed 6 March using a soldering iron, the first time such repair equipment had been used in space.
Progress 5 arrives Progress 5, an uncrewed supply tanker, was launched 12 March and docked with the station two days later. The crew spent four days unloading the vehicle. Supplies delivered included parts for station repair, an extra storage battery, a television monitor, a new Kristall furnace to replace the old one which had broken, a gamma ray telescope and food. A total of 300 items weighing 1,300 kg were delivered. The tanker also delivered 1,000 kg of propellant for the station. The Soviets revealed the propulsion problem on 16 March. They said a Salyut fuel tank was leaking fuel into the nitrogen bellows which pressurized the fuel. The station's engine systems were not affected, but valves and regulators in the pressurization system were at potential risk. Accordingly, the crew shut down the tank and used a reserve tank. The crew attempted to drain the leaking tank by rotating the station and succeeded by 23 March, purged the tank with nitrogen and closed it off. On the same day they cleared the tank, the crew used the station's shower for the first time, wearing scuba masks to keep the water out of their eyes. A milestone was reached 24 March when the cosmonauts installed a television monitor which allowed a two-way television link with ground control. For the first time, cosmonauts received television pictures in space. Seeing family, instead of just hearing them, was considered to have great psychological importance, especially as longer flights were contemplated. On 30 March, Progress 5 boosted the station's orbit, then Soyuz 32 boosted the orbit again 6 April in preparation for the forthcoming Soyuz 33 crew. Progress 5 was undocked 3 April and deorbited two days later.
Soyuz 33 mission failure
Soyuz 33 was launched 10 April with the fourth international crew in the Soviet Intercosmos program. Bulgarian cosmonaut Georgi Ivanov joined commander Nikolai Rukavishnikov as the craft proceeded normally towards the space station. But, as the craft approached to 1,000 metres, the engine failed and shut down after three seconds of a planned six-second burn. Rukavishnikov had to hold the instrument panel as the craft violently shook. A second firing attempt was made, but the engine shut down again, and Ryumin, observing from the station, reported an abnormal lateral glow from behind the Soyuz during the burn. Mission control accordingly aborted the mission and told the crew to prepare to return to Earth. It was the first in-orbit failure of the Soyuz propulsion system. It was only in 1983 that the Soviets revealed how serious the situation was. The craft had a back-up engine but it was feared that it may have been damaged by the main engine, potentially leaving the crew stranded with five days of supplies while it would take ten days for the orbit to decay. The station could have been moved to within 1,000 m of the craft, but the two craft were drifting apart at 28 metres per second, and time was needed to calculate the manoeuvres. In any event, four crew on the station with one malfunctioning Soyuz and a second Soyuz (Soyuz 32) with a now-questionable engine (it had the same type as Soyuz 33) was not considered the best option. In the end, the backup engine did fire, though for 25 seconds too long, resulting in an unusually steep trajectory and loads of 10 Gs to be endured by the crew. Rukavishnikov and Ivanov were safely recovered.
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