Maritime Glossary 4 - OHM

Ropes supported by stanchions around an open hatch to prevent persons

from falling into a hold

• Heading

• Hatchrails

• Hoist

• Icing

The horizontal direction the vessel's bows at a given moment measured in

degrees clockwise from north

• Heading

• Hatchrails

• Hoist

• Icing

here: A cable used by helicopters for lifting or lowering persons in a pickup

operation

• Heading

• Hatchrails

• Hoist

• Icing

Coating of ice on an object, e.g. the mast or superstructure of a vessel

• Heading

• Hatchrails

• Hoist

• Icing

Group of dangerous or hazardous goods, harmful substances or marine

pollutants in sea transport as classified in the International Maritime

Dangerous Goods Code (IMDG Code)

• Initial course

• IMO-Class

• Inert (to)

• Inoperative

To reduce the oxygen in an oil tank by inert gas to avoid an explosive

atmosphere

• Initial course

• IMO-Class

• Inert (to)

• Inoperative

Course directed by the OSC or other authorized person to be steered at the

beginning of a search

• Initial course

• IMO-Class

• Inert (to)

• Inoperative

Not functioning

• Initial course

• IMO-Class

• Inert (to)

• Inoperative

Throwing overboard of goods in order to lighten the vessel or improve its

stability in case of an emergency

• Jettison (to) (of cargo)

• Leeward

• Leaking

• Launch (to)

To lower, e.g. lifeboats to the water

• Jettison (to) (of cargo)

• Leeward

• Leaking

• Launch (to)