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PART II: MATERIAL TECHNICAL BASIS FOR MARITIME TRANSPORT, NGUYỄN PHƯƠNG…
PART II: MATERIAL TECHNICAL BASIS FOR MARITIME TRANSPORT
Merchant ship
Merchant ship
Merchant: Purpose: commercial, trading
Ship: for transportation
Ship registration
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
Ship clasfication
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
The Plimsoll Mark
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)
Unloaded cargo = light draft = Min draft
Loaded cargo = loaded draft = Max draft
A ship's deadweight is determined by
load line
Depending:
cargo load, season &water zone
Displacement tonnage – LD & HD
Weight of the ship= eight of water that it displaces
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
Carrying capacity – DWC & DWCC
Measured deadweight ton (DWT)
Deadweight capacity(DWC) = HD -LD
Deadweight cargo capacity (DWCC) = DWC - weight of fuel, stores, fresh water, equipment, ect
Register tonnage – GT & NT
Measured cubic meter (Cbm), cubic foot (Cft) or register
Two type : Gross tonnage (GT)
Net tonnage ( NT)
Cargo space – CS
Grain space/Gian capacity = 105% to 110% of the Bale
Coefficient of loading – CL
CL = CS (Cft/m3) / DWCC (MT/ LT/ ST)
Dimension of the ship
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