in-water engineering

in-water inspections vessel propulsion systems

propeller and hull cleaning underwater engineering

in-water inspections

dive technologies is an accredited In-Water Surveyor for Lloyds, American Bureau of Shipping, Bureau Veritas and Det Norsk Veritas. We use the best quality, hat mounted, low light underwater camera systems available. Progress is constantly monitored via flat screen tv and comms systems and the whole process is recorded on video and dvd.

Written reports are quickly prepared for each project, complete with comments and recommendations from our consulting engineers.

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propeller and hull cleaning

It is estimated that the annual propulsive fuel losses, worldwide, caused by marine fouling can be measured in US$ 100M's due to increased hydrodynamic drag. A fouled propeller can increase fuel consumption by up to 14% and a fouled hull by up to 24%. The propeller can generate energy losses equal to half that of the hull. Since fouling has a significant effect upon the vessel's speed and range, even keeping the waterline clean has a very short "payback" time.

vessel propulsion systems

dive technologies divers are specially trained by SMM Shipcare Ltd in all the important aspects of propeller geometry, edge definition and cavitation erosion etc. One of the principal benefits of being part of the Stone Manganese "family" is that SMM Sub-Sea's divers are able to provide a meaningful report on the propeller's condition and, through SMM Shipcare Ltd, can recommend remedial action. The name of Stone Manganese Marine is recognised by all the world's class societies.

dive technologies was the in-house service department of Stone Manganese, a world leader in ship propulsion systems. Our engineers are trained in all aspects of propeller geometry, cavitation erosion and edge definition and can give an expert report on propeller condition and remediation of damage.

This expertise extends to thrusters, rudder and stern gear including seal repairs and replacement. dive technologies has the expertise to fit and remove thrusters in-water without the need to dry dock the vessel and many operations that used to require a drydocking can now be carried out with the vessel afloat, minimising downtime and repair costs.

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underwater engineering

We can organise surveys, reports, devise repairs, carry out NDT testing, fit blanks, test sea chests and cooling systems, fit and remove anodes and carry out welding and coating repairs under water.

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