| HH |
|
Hold hatches |
| HHDW |
|
Handy Heavy d.w. (scrap)
|
| HHDW |
|
Handy Heavy d.w. (scrap) |
| HKG |
|
Hong Kong |
| HMS |
|
Heavy Metal Scraps |
| HMT |
|
Hazardous Materials Technician |
| HO |
|
Hold |
| Hogging |
|
Describes a state of a ship when she is drooping at the fore and aft ends and bending upwards in the middle; this induces compression of the bottom and tension of the upper deck opposite of sagging
|
| Hold |
|
Internal compartment in a ship where cargo can be carried
|
| Holystone |
|
Soft white sandstone used for cleaning wooden decks by scouring
|
| Hopper |
|
Funnel-like container with a tapered construction at its bottom; used when loading or discharging bulk cargo
|
| Hopper Barge |
|
Barge designed for dredging operation; it has hinged flap doors at the bottom of the compartment which carries the dredged mud and sand; after each loading, the barge is taken to deeper water to dump the dredged material
|
| Horse Power |
|
A measure of the work done in a given time; 1 horsepower is equivalent ot 745.7 watt; hp for short
|
| Hose Test |
|
A weathertightness test of the hatch cover system using a water jet see chalk test, ultrasonic test
|
| Hot Work |
|
Any work which has an ignition source or a temperature sufficiently high to cause the ignition of a flammable gas mixture, eg welding, gas cutting, electric driven hand tools, etc.
|
| Hovercraft |
|
A ship which has its weight fully supported by an air cushion to reduce the hull resistance when moving through water; the air cushion is created by centrifugal lift fans blowing air into the under space bound by a skirt; this type of ship is known as surface effect vessel or SEV for short
|
| HP |
|
Horsepower of High-Pressure |
| HR |
|
HouR |
| HRS |
|
Hellenic Register of Shipping |
| HRS |
|
Hours |
| HSFO |
|
High Sulphur Fuel Oil |
| Hull |
|
The body of a ship
|
| HV |
|
HeaVy |
| HVFL |
|
HeaVy Fuel |
| HVPQ |
|
Harmonized Vessel Particulars Questionnaire |
| HW |
|
High Water |
| Hydraulic Starting |
|
This system uses a hydraulic cranking motor instead of electric starter motor to run up the engine during starting; the driving force is stored in a hydro-pneumatic accumulator rather than a battery; the accumulator is used to store up the potential energy by pumping in oil with a hydraulic hand pump to compress the pre-charged Nitrogen gas from 100 bar to 200 bar
|
| Hydrofoil |
|
A fast boat designed to have its hull lifted clear of the water surface and supported by foils or wings when it reaches cruising speed
|
| Hydrometer |
|
An instrument for measuring the relative density of liquids
|
| Hydrostatic Curves |
|
A set of curves which plot the hydrostatic quantities such as displacement, centre of flotation, centre of buoyancy, transverse metacentre, etc against the draught; these curves are useful for quick assessment of the draughts and the initial stability in various loading conditions
|
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