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Voskhod programme

space Maturity 7-9 Next article →

The Voskhod programme was the second human spaceflight project led by the Soviet Union. It served as a follow-on to the earlier Vostok programme. Engineers developed Voskhod by recycling components from the Vostok project. While Vostok focused on studying microgravity and the human body, Voskhod focused on achieving spectacular firsts. The programme aimed to put multiple people in orbit and perform the first extravehicular activity, or EVA. An EVA is a spacewalk where an astronaut leaves the spacecraft. This programme eventually ended when it was superseded by the Soyuz programme.

Voskhod 1 and 2
Voskhod 1 and 2

Designing the Voskhod spacecraft required significant changes to the existing Vostok design. The Voskhod capsule was much heavier than its predecessor. Because of this extra weight, engineers used the 11A57 launch vehicle. This rocket was a Molniya 8K78M with the Blok L stage removed. This booster later became the basis for the Soyuz booster. To fit more people, engineers removed the ejection seats. They replaced them with two or three crew couches. These couches were placed at a 90-degree angle to the original Vostok position. This change meant the crew had to crane their heads 90 degrees to see the instruments.

Voskhod 1 and 2
Voskhod 1 and 2

Technical modifications were necessary to support these new mission goals. For the Voskhod 2 mission, engineers added an inflatable exterior airlock to the descent module. This airlock was placed opposite the entry hatch and was jettisoned after use. The airlock was essential because the vehicle's avionics and environmental systems were air-cooled. Without the airlock, depressurization in orbit would cause the systems to overheat. Engineers also added a solid-fueled braking rocket to the parachute lines. This provided a softer landing during touchdown. This was important because the crew remained inside the module during landing. Unlike Vostok, the Voskhod had no launch abort system to escape a malfunctioning rocket.

Voskhod 1 and 2
Voskhod 1 and 2

Before the crewed flights, several uncrewed tests took place. The Kosmos 47 mission was an uncrewed test of the Voskhod hardware. The Kosmos 57 mission was also an uncrewed test, but it was unsuccessful. In 1966, the programme conducted a long mission with animals. Two dogs named Veterok and Ugolyok flew on the Kosmos 110 mission. They launched on 22 February 1966 and landed on 16 March. This mission lasted for 22 days. These flights helped test the hardware for longer durations in space.

Voskhod 1 and 2
Voskhod 1 and 2

The programme successfully completed two major crewed missions. Voskhod 1 launched on 12 October 1964. The mission lasted 1 day, 0 hours, 17 minutes, and 3 seconds. The crew included Vladimir Komarov, Konstantin Feoktistov, and Boris Yegorov. This was the first multi-man spacecraft in orbit. Voskhod 2 launched on 18 March 1965. This mission lasted 1 day, 2 hours, 2 minutes, and 17 seconds. The crew consisted of Pavel Belyayev and Alexei Leonov. Leonov performed the first EVA, or spacewalk, during this flight.

Voskhod 1 and 2
Voskhod 1 and 2

Soviet planners had ambitious goals for the future of the programme. They planned several more missions to study long-term weightlessness. Voskhod 3 was intended to be a 19-day mission for two men. It would have used artificial gravity for medical and military experiments. Voskhod 4 was planned as a 20-day mission for a single person. Voskhod 5 was designed as a 10-day mission for two women. This would have included the first female EVA. Voskhod 6 was planned as a 15-day mission for two men. It would have tested a new EVA jet belt.

Voskhod 1 and 2
Voskhod 1 and 2

Despite these plans, the Voskhod programme was eventually abandoned. There were delays while preparing for the Voskhod 3 mission. During this time, the American Gemini programme achieved many of the same goals. A change in Soviet leadership also played a role. The new leadership was less interested in flights focused on prestige and stunts. This allowed Soviet designers to shift their focus to the Soyuz programme. This transition helped the Soviet Union concentrate on more advanced space technology.

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