Yastreb (, '' hawk'') is a Russian

space suit A space suit or spacesuit is a garment worn to keep a human alive in the harsh environment of outer space, vacuum and temperature extremes. Space suits are often worn inside spacecraft as a safety precaution in case of loss of cabin pressure, ...

that was specially developed for early

Soyuz Soyuz is a transliteration of the Cyrillic text Союз ( Russian and Ukrainian, 'Union'). It can refer to any union, such as a trade union (''profsoyuz'') or the Union of Soviet Socialist Republics (Сою́з Сове́тских Социалис ...

space vehicle missions and for

EVA Eva or EVA may refer to: * Eva (name), a feminine given name Arts, entertainment, and media Fictional characters * Eva (Dynamite Entertainment), a comic book character by Dynamite Entertainment * Eva (''Devil May Cry''), Dante's mother in t ...

. This model of space suit allowed the cosmonaut to spacewalk from the

orbital module The orbital module is a compartment of some space capsules used only in orbit. It is separated from the crewed reentry capsule before reentry. The orbital module provides 'habitat' space to use in orbit, while the reentry capsule tends to be focu ...

of Soyuz. Design and development of the suit took place in 1966 by the Zvezda Company with input from Alexei Leonov. The Berkut suit that Leonov had used on the

Voskhod 2 Voskhod 2 (russian: Восход-2, , ''Sunrise-2'') was a Soviet crewed space mission in March 1965. The Vostok-based Voskhod 3KD spacecraft with two crew members on board, Pavel Belyayev and Alexei Leonov, was equipped with an inflatable ai ...

space walk had ballooned at the joints making movement very difficult. The Yastreb design was a much more stable in sizes using a system of pulleys and lines to regulate movement. The backpack containing life support was mounted in a metal box that could be attached to the chest or to the leg to ease access through the small Soyuz hatch. The suit was to be worn only in the

Orbital module The orbital module is a compartment of some space capsules used only in orbit. It is separated from the crewed reentry capsule before reentry. The orbital module provides 'habitat' space to use in orbit, while the reentry capsule tends to be focu ...

of the Soyuz spacecraft and needed two people to put it on. The suit's mobility performances were limited, so the planned Soviet Moon landing the movements of the

cosmonaut An astronaut (from the Ancient Greek (), meaning 'star', and (), meaning 'sailor') is a person trained, equipped, and deployed by a human spaceflight program to serve as a commander or crew member aboard a spacecraft. Although generally r ...

s would be restricted. The Yastreb suit was only used once, this was during the

Soyuz 4 Soyuz 4 (russian: Союз 4, ''Union 4'') was launched on 14 January 1969, carrying cosmonaut Vladimir Shatalov on his first flight. The aim of the mission was to dock with Soyuz 5, transfer two crew members from that spacecraft, and retur ...

and

Soyuz 5 Soyuz 5 (russian: Союз 5, ''Union 5'') was a Soyuz mission using the Soyuz 7K-OK spacecraft launched by the Soviet Union on 15 January 1969, which docked with Soyuz 4 in orbit. It was the first docking of two crewed spacecraft of any nat ...

docking and crew exchange. The suit was not worn during launch or reentry. During the mission both cosmonauts experienced problems with the suit.

Specifications

Name: Yastreb Spacesuit Manufacturer:

NPP Zvezda JSC Research & Development Production Enterprise Zvezda, or R&D PE Zvezda (russian: Научно-производственное предприятие "Звезда", НПП Звезда, Nauchno-Proizvodstvennoye Predpriyatiye "Zvezda", NPP ...

Missions:

and

Function:

Orbit In celestial mechanics, an orbit is the curved trajectory of an object such as the trajectory of a planet around a star, or of a natural satellite around a planet, or of an artificial satellite around an object or position in space such as ...

al Extra-vehicular activity (EVA) Operating Pressure: Suit Weight: Backpack Weight: Total Weight: Primary Life Support: 2.5 hours (150 minutes)

References

External links

Photo of Yastreb space suit at Memorial Museum of Cosmonautics in Moscow

Soviet and Russian spacesuits {{USSR-spacecraft-stub