Page 54: of Marine Technology Magazine (November 2005)

54 MTR November 2005

SeaBotix Inc. Adds LBV

SeaBotix added to the LBV range of

ROV systems. There are five primary categories: LBV1502, LBV3002,

LBV6002, LBV15002 and "Fly

Outs". The number designates the

LBV's depth rating in meters and the "Fly Out" category offers three sys- tems in the greater depth ratings.

Each model has standard features; including powerful thrusters, small diameter umbilical, two forward cam- eras, lamp tracking camera, lateral thruster, auto depth/heading, and video overlay.

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Cable Tracking

Innovatum International developed a method of locating and surveying submarine power cables at five meters burial depth, by "magnetizing" the armor of the cable and using the

Innovatum ULTRA magnetic cable and pipe tracking system. The method was tested during cable burial trials in June 2005.

Trials consisted of two phases - magnetizing the cable and subse- quently proving the tracking per- formance. The barge installer was used to deploy and bury a test section of the cable, and all work was carried out from this vessel. The cable was magnetized during the lay process

FREE INFORMATION on products is available online at www.maritimeequipment.com/mt products

Nexans has developed a terrain dredger/sub-sea intervention system called the Spider. The Spider com- bines powered tracks with an articu- lated walking leg system, enabling it to function in uneven sub-sea terrain with up to 35 degrees slope. It is built to work in water depths of approxi- mately 1,000 m. The Spider's move- ments are controlled by operators located aboard a support vessel, it is launched via a specialized Launch &

Recovery System (LARS). Power and signals between the vessel and Spider are supplied through an umbilical.

During deployment, the operator follows the Spider's movements via underwater cameras.

When disturbed sea bed material reduces visibility.

Use of a virtual 3D computer image of the seabed, which is prepared by the onboard survey operator and loaded into the Spider's data system can provide an alternative view of the environment.

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Spider Dredging System by Nexans

LBV1500F

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