PART II: MATERIAL TECHNICAL BASIS FOR MARITIME TRANSPORT

Merchant ship

Merchant ship

Ship registration

Ship clasfication

The Plimsoll Mark

Merchant: Purpose: commercial, trading

Ship: for transportation

Ships need to be officially registered : VIRES in Vietnam, Lloyd’s in London, ABS in US,..

A UNIQUE code

Shipowner’s country - national flag
Foreign country - flag of convenience

Certificate of quality of the ship

By Classification Societies

To ensure : safety of passengers, crew, cargo and vessel

Survey has to take place every 4 years

Also called load line

maxium depth - legally loaded

Safety for seamen

Water zones

TF : Tropical freshwater load line

F : Freshwater loadline

T : Tropical zones load line

S : Summer load line

W : Winter load line

WNA : Winter North Atlantic
load line

Specifications of merchant ship

Draught (draft)

Displacement tonnage – LD & HD

Carrying capacity – DWC & DWCC

Register tonnage – GT & NT

Cargo space – CS

Coefficient of loading – CL

Dimension of the ship

Grain space/Gian capacity = 105% to 110% of the Bale

Unloaded cargo = light draft = Min draft
Loaded cargo = loaded draft = Max draft

A ship's deadweight is determined by load line

Weight of the ship= eight of water that it displaces

Depending: cargo load, season &water zone

Metric tons (MT)= 1000kg

Fomulas: D(MT) = M(cft)/35
Light displacement (LD) = the weight of empty ship + equipment + crew members & staff
Heavy/Loaded displacement (HD) = light displacement + weight of cargo loaded into the ship

Measured deadweight ton (DWT)

Deadweight capacity(DWC) = HD -LD
Deadweight cargo capacity (DWCC) = DWC - weight of fuel, stores, fresh water, equipment, ect

Measured cubic meter (Cbm), cubic foot (Cft) or register

Two type : Gross tonnage (GT)
Net tonnage ( NT)

CL = CS (Cft/m3) / DWCC (MT/ LT/ ST)

length over all (LOA)

Length between perpendiculars (LBP)

Length water line(LWL)

Beam

Classification of ships

Based on purpose of using

Based on size

Based on carried flag

Based on scope of business

Based on method of trading

NGUYỄN PHƯƠNG UYÊN - 22117983

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