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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