Tether Connection Mk 2

Tether Connection Mk 2

The Tether Connection Mk 2 provides a “plug & play” solution to connecting to the Double Eagle Mk II Mine Disposal Vehicle. The complete system consists of an in-line connector mounted on the tether and a receptacle permanently fitted on the MDV. Connection to the MDV is simply made by pushing the connectors together and screwing home the retaining bezel. There is no requirement to breach the MDV pressure hull to make an electrical or fire optic connection. The connector set provides three electrical and two fibre optic paths for operation of the MDV.


  • Reduced ingress of humid, salt laden air in to the MDV. Because there is no need to breech the vehicle pressure hull to connect to the tether there is a much reduced risk of humid air ingress.
  • Reduced risk of ingress of foreign objects in to the pressure hull. When the pressure hull is opened to connect the tether using the existing method there is always a risk that foreign objects or tools may be dropped into the opening.
  • Elimination of the requirement to conduct a vacuum test. Because the pressure hull is not breached these is no requirement to conduct a vacuum test to confirm that the hull is watertight before launch.
  • Faster tether changes. The “plug & play” connection to the MDV significantly reduces the time required to change between MDVs. The risk of an incorrect or poorly made connection and the delay associated with conducting a vacuum test are eliminated.

Components used the Tether Connection Mk 2 system are tried and proven in offshore and defence applications. The Tether Connection Mk 2 is the fast and reliable way to perform MDV connections.

Key Features

Up to 25-hour mission duration

Speeds up to 4.2 knots

Increased module payload capacity

Search and recovery


Deep sea mineral exploration

Marine & Fisheries research

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