On 11th January 1975 was launched Soyuz 17 spacecraft, with Aleksiej Gubariew i Gieorgij Grieczkin on board. The Soviet astronauts on Salut 4 space station carried out a series of experiments. They spent 29 days, 13 hours, 19 minutes and 45 seconds on the orbit.
Today in aviation history – 11th January
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