Vapour rising like steam or smoke from the sea caused by very cold air blowing over it.

A prime mover which is suitable for operating the deck machinery at its full designed load.

– A boiler test to ensure that the safety valves can release steam fast enough to prevent the pressure rising by 10%. The main steam stop valve is closed during the test.

1. A type of lifting gear often installed on stern of cable vessels, pipe-lying vessels and offshore construction vessels for sub sea load handling. 2. A fabricated steel structural element of a slow speed, two-stroke diesel engine. It stands on the bedp ...

– The reduction of rolling provides better fuel/speed performance on rough seas, enhances crew safety and possibly their efficiency. The roll amplitude can be reduced by passive devices, such as bilge keels, or by active devices, such as hydrofoilshaped ...

The maximum rope tension (in kilonewtons), measured at the drum exit when the drum ceases to rotate in the direction of haul, the prime mover being set for maximum torque and the rope being wound on the drum in a single layer.

The operation of securing the ratlines to the shrouds.

– Offshore cranes and other equipment doing subsea work are provided with AHC systems to ensure presicion in high sea states and extreme weather conditions. The essential function of AHC technology is the ability to land and retrieve subsea installations ...

A winch having a rope storage capacity and used for slewing and retaining a boom.

The maximum rope tension (in kilonewtons), measured at the drum commences to rotate in the direction of haul, the prime mover being set for maximum torque under automatic control and the rope being wound on the drum in a single layer.

A crane with a jib which may be rotated by turning gear and adjusted in the vertical plane.

A test applied to each machine produced by a manufacturer.

– Chemicals added to fuel, lubricating oils or fresh water to improve their physical or chemical characteristics

A crane with a boom consisted of several sections, being capable of moving the weight positions though folding the boom.

– The mass of water which is considered to be set in motion by a ship when heaving, pitching, rolling and vibrating.

– Bonding strength; the attraction of a coating to the substrate, or to another film of paint or any other material such as steel.

A kind of winch, which is applied for longitudinal and transverse moving or positioning the engineering ship.

A reel designed for receiving/rendering and storing the marine & on-shore cable

The portion of dry, full line pressure, compressed air taken from the drying side tower of a dual tower desiccant dryer system. Expanded to a very low pressure and passed across the wet desiccant to strip the moisture in the desiccant of the regenerating ...

A lightly powered or unpowered drum intended solely for rope storage