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After cutting away debris it can also lower 'life-support' canisters into the submarine's escape hatches
Roger Chapman, James Fisher Rumic
The Scorpio is about the size of a double bed, and carries cameras, sonar systems, propulsion systems, hydraulic power, electrical power, pumps, cutting equipment, and also has a manipulator arm.
The unmanned craft is used in situations that are too dangerous or too deep to send divers.
A team of nine went to the Pacific Ocean site - six operators, a naval architect and a liaison manager, as well as Ian Riches, head of the MoD's submarine rescue team.
The team which was a mixture of Cumbrian and Scottish based staff.
Max depth: 925m
Tools: Cable cutter, lifting arms, pumps
It can operate down to depth of 925m, with the depth being determined by the length of its umbilical cable.
It is fitted with three cameras and cable cutting equipment to cut steel cable up to 70mm diameter.
Speaking from the Rumic headquarters in Dalton-in-Furness, managing director Roger Chapman said that the Scorpio team the firm had sent to Russia was always kept at 12 hours notice for mobilisation.
It also attended the scene of the stricken Russian submarine Kursk in 2000 but on that occasion was not given permission to intervene.
"The Scorpio is a full-time submarine rescue vehicle - it can cut debris from the outside of submarines and also carry out inspections of exteriors," said Mr Chapman.