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Strela (russian: Стрела, , crane arm) is a class of four
Strela (russian: Стрела, , crane arm) is a class of four Russia
Russia (, , ), or the Russian Federation, is a List of transcontinental countries, transcontinental country spanning Eastern Europe and North Asia, Northern Asia. It is the List of countries and dependencies by area, largest country in the ...
n built cargo cranes used during EVAs to move cosmonauts and components around the exterior of the Soviet/Russian space station
A space station is a spacecraft capable of supporting a human crew in orbit for an extended period of time, and is therefore a type of space habitat. It lacks major propulsion or landing systems. An orbital station or an orbital space station i ...
'' Mir'' and the Russian Orbital Segment of the International Space Station
The International Space Station (ISS) is the largest modular space station currently in low Earth orbit. It is a multinational collaborative project involving five participating space agencies: NASA (United States), Roscosmos (Russia), JAXA ...
.
Overview
''Mir'' featured two cranes mounted to its core module (delivered by Progress spacecraft), and the ISS also possesses two cranes, mounted to ''Poisk'' andZarya Zarya may refer to:
*Zorya, personification of dawn in Slavic mythology
* Zarya (antenna), a type of medium-wave broadcasting antenna used in former Soviet Union
*Zarya (ISS module) is a module of the International Space Station.
* ''Zarya'' (magazi ...
. The cranes are unpowered telescopic poles assembled in sections, which measure around 6 feet (182 cm) when collapsed but, when extended using a hand crank, measure 46 feet (14 m) long. This means that the cranes on ''Mir'' could easily reach all of the main modules of the complex, and those attached to the ISS can be used to transfer objects the full length of the Russian Orbital Segment (ROS), from Zvezda to Zarya Zarya may refer to:
*Zorya, personification of dawn in Slavic mythology
* Zarya (antenna), a type of medium-wave broadcasting antenna used in former Soviet Union
*Zarya (ISS module) is a module of the International Space Station.
* ''Zarya'' (magazi ...
.
The largest robotic arm on the ISS, Canadarm2
The Mobile Servicing System (MSS), is a robotic system on board the International Space Station (ISS). Launched to the ISS in 2001, it plays a key role in station assembly and maintenance; it moves equipment and supplies around the station, supp ...
weighs 1,800 kilograms and is used to hold crew members during EVAs, move station modules, spacecraft, orbital replacement units and Dextre
Dextre, also known as the Special Purpose Dexterous Manipulator (SPDM), is a two armed robot, or telemanipulator, which is part of the Mobile Servicing System on the International Space Station (ISS), and does repairs that would otherwise r ...
on the US Orbital Segment
The US Orbital Segment (USOS) is the name given to the components of the International Space Station (ISS) constructed and operated by the United States National Aeronautics and Space Administration (NASA), European Space Agency (ESA), Canadi ...
. The ROS does not require spacecraft or modules to be manipulated, as all spacecraft and modules dock automatically, and may be repositioned or discarded the same way. Each strela crane weighs 45 kg and can perform all necessary tasks, with substantial weight savings, less complexity and less maintenance than the Canadarm2 and the European Robotic Arm.
Two Strela cranes were originally carried to the ISS on Integrated Cargo Carriers, the first on STS-96, the second on STS-101, and one was subsequently transferred from ''Pirs'' by Expedition 65
Expedition 65 was the 65th long duration expedition to the International Space Station. The mission began on 17 April 2021, with the departure of Soyuz MS-17, and was initially commanded by NASA astronaut Shannon Walker serving as the third fe ...
before ''Pirs'' was decommissioned. An EVA in February, 2012 relocated one Strela crane to the docking compartment Poisk Poisk may refer to:
*Poisk (computer), a Ukrainian(USSR) IBM PC XT clone (see List of Soviet computer systems)
*Poisk (ISS module)
''Poisk'' (russian: Поиск, , Search), also known as the Mini-Research Module 2 (MRM 2), , or ''МИМ 2'', ...
. A second EVA, performed in August, moved the second Strela to Zarya Zarya may refer to:
*Zorya, personification of dawn in Slavic mythology
* Zarya (antenna), a type of medium-wave broadcasting antenna used in former Soviet Union
*Zarya (ISS module) is a module of the International Space Station.
* ''Zarya'' (magazi ...
. These moves were required because Pirs was detached and deorbited to allow the MLM Nauka to dock to the location occupied by ''Pirs''.
See also
*Canadarm
Canadarm or Canadarm1 (officially Shuttle Remote Manipulator System or SRMS, also SSRMS) is a series of robotic arms that were used on the Space Shuttle orbiters to deploy, manoeuvre, and capture payloads. After the Space Shuttle ''Columbia' ...
, which was used on the Space Shuttle
The Space Shuttle is a retired, partially reusable low Earth orbital spacecraft system operated from 1981 to 2011 by the U.S. National Aeronautics and Space Administration (NASA) as part of the Space Shuttle program. Its official program na ...
* Dextre
Dextre, also known as the Special Purpose Dexterous Manipulator (SPDM), is a two armed robot, or telemanipulator, which is part of the Mobile Servicing System on the International Space Station (ISS), and does repairs that would otherwise r ...
, also known as the Special Purpose Dexterous Manipulator (SPDM)
* European Robotic Arm, a robotic arm to be installed on the ISS Russian Orbital Segment in 2021
*
* Mobile Servicing System (MSS), also known by its primary component the Canadarm2
References
{{Mir modules Mir Russian components of the International Space Station