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an ers

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Supertanker 3 lengths of football field

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{ Car o s ace subdivided lon itudinall

and transversely by a number of bulkheads throughout the length. Thereare usually centre and wing (port &

starboard) cargo tanks{ Double hull tankers, which are gradually

replacing single hull tankers, have a

ou e s n on e s es an e o om.{ This double skin provides a double

pro ec on aga ns ou ow o o n caseof side damage to the vessel.

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ou e u an er

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ng e u an er

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t er arrangement o tan s

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o e

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tan compartments

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Section of Tanker,showing structure inside

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eatures o an ers cont

{

The deck is continuous except orthe line of access hatches and

{

Speeds are usually lower at 12-16.{ Tanks for heavy oils, molasses or

heating coils

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ccess atc to cargo tan

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ea age re ssues

To minimise the risk o leakage o oilsor vapour into the compartments, a

cofferdams are fitted at each end of .

{ The propelling machinery space is

{ explosive gas which may have

means of safe escape

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Location of engine room and cofferdam

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ump ng o cargo

{ T e cargo oi -pumping arrangements maybe quite extensive

without risk of contamination of one

grade by other.{ A pump-room is usually located between

the cargo spaces and the machinery

,this area.

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t erm na

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pes on ec

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ose err c s

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nv ronmenta concerns

{ ue o e g y pu c seenvironmental pollution caused by

oil, polluting the sea and beaches,

international maritime rulesstipu ate strict ru es regar ingdesign of tankers and the discharge

-the sea, especially in waters nearharbours and ports

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em ca an er

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Transverse Web under construction

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{ The End