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Seamanship Techniques 2011 E Part 6 ppt

Seamanship Techniques 2011 E Part 6 ppt

Seamanship Techniques 2011 E Part 6 ppt

... Once the slip and bottle screware released, the gripe can be passed back over the boat and the endcleared. However, some gripes are interconnected to the trigger system,and the men in the boat ... weak link securing whichwill part after the painter becomes fully extended and the pressureincreases, causing the safe working load/breaking strain to be exceeded.‘D’ringServicereleaseDeck ... The tiller shall be permanently installed on orlinked to the rudder stock; however, if the lifeboat has a remotesteering mechanism, the tiller may be removable and securelystowed near the...
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Seamanship Techniques 2011 E Part 2 pps

Seamanship Techniques 2011 E Part 2 pps

... used to sleep in thefo’c’sle head area, and the banging cables tended to keep them awake.Hence they were lashed secure.The more up-to-date thinking is that if the cable is lashed the chanceof ... secured whenthe anchor is deployed.Deck plateDoublerUnderdeck framesHawse pipe (tubularsteel)Bolster (steel)‘D’‘D’ represents the diameter of thehawse pipe and is at least ninetimes the chain ... HOLDERSCable holders (Figure 2. 16) are often fitted to large merchant vessels asan alternative to the windlass, and, with recent developments, may beseen on passenger vessels. They have also been popular...
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Seamanship Techniques 2011 E Part 3 docx

Seamanship Techniques 2011 E Part 3 docx

... use as a greasecavity.Double and treble sheave purchase blocks are of a similar construction tothe single sheave, except that a partition plate separates the sheaves. Theyare used extensively ... RIGGINGSTEEL WIRE ROPEA steel wire rope is composed of three parts – wires, strands and theheart. The heart is made of natural fibre, though recently synthetic fibrehas been used when resistance ... The stopper should be examined for wear and tearbefore use, and if there is any sign of deterioration, the stopper should berenewed. The mariner should ensure that the stopper is secured, thenpass...
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Seamanship Techniques 2011 E Part 4 pdf

Seamanship Techniques 2011 E Part 4 pdf

... chain preventer when the derrick reaches thedesired working height. When shackling the chain preventer to thedeck lug bolt, ensure that the shackle is clear of the next link of thepreventer, so ... limited127Lifting GearThe topping lift should be secured at the head of the sheer legs andthe weight taken. Care should be taken to ensure that men brace themselvesagainst any movement of the shoes in the ... are of a weldedstructure, consisting of either three or five welded sections of tubularsteel. Wooden derricks, which generally lifted only up to 3 tonnes, havelargely been superseded.At the...
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Seamanship Techniques 2011 E Part 8 potx

Seamanship Techniques 2011 E Part 8 potx

... you expect wire lifeboat fallsto be. How often would you expect them to be renewed?Ans. Extra flexible steel wire rope (6 × 36 or 17 × 7) wps. To berenewed whenever required, and at no greater ... the wheelbe understood to against the swing ofmean, check the the vessel, up toswing of the approx. ten degreesvessel) of opposing helmbeing applied toreduce the rate ofswing. Eases thewheel ... flexible steel wire rope and a non-flexible steel wirerope?Ans. A flexible wire will have more wires per strand and a fibreheart running through the centre. Non-flexible wires donot possess...
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Seamanship Techniques 2011 E Part 9 docx

Seamanship Techniques 2011 E Part 9 docx

... and DepthMultiple echoesThese are caused by the transmitted pulse being reflected several timesbetween the sea bed and the water surface before its energy is dispersed.Such multiple reflection ... type of echo is a double reflection of the transmitted pulse. Itoccurs when the energy is reflected from the sea bed and then reflectedback from the surface of the water before being received by ... incorporates moisture-free, sealed-in mirrors, whichare adjustable at eye level inside the wheelhouse, together with a detachableanti-glare shield. 60 Seamanship Techniques HaloA circle of light...
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Seamanship Techniques 2011 E Part 10 ppsx

Seamanship Techniques 2011 E Part 10 ppsx

... the vessel may be expectedto roll somewhat slowly and independently of the waves. The vessel willprobably experience only moderate angles of roll, and the waves may beexpected to break near ... passage exists, the overtaking operationmay take place. No sound signals need be given by either vessel, because thereYXFigure 5.1 Overtaking vessel in a narrow channel. 66 Seamanship Techniques CONSTRUCTION ... between the two vessels shall notmake the overtaking vessel a crossing vessel within the meaning of theseRules or relieve her of the duty of keeping clear of the overtaken vesseluntil she is...
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Seamanship Techniques 2011 E Part 11 pdf

Seamanship Techniques 2011 E Part 11 pdf

... Seamanship Techniques RedGreenVessel less than 50 m in lengthrestricted in her ability to manoeuvre.GreenRed, white, red,all-round lightsshown where theycan best be seen.RedRange 2 milesHead ... canGreenGreenConicalSparPillarRedGreenRedRedGreenPreferred channel to starboard, red with green stripe, andred light flashing 2 + 1 (group flashing).GreenRedGreenGreenRedPreferred ... the vessel exceeds 6 metres, then at a heightabove the hull not less than such breadth, so however that the lightneed not be placed at a greater height above the hull than 12metres;(ii) when...
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Seamanship Techniques 2011 E Part 12 pps

Seamanship Techniques 2011 E Part 12 pps

... derricks been lowered or removed?(d) Where applicable, have portable pipes been removedand have the remaining open ends been blanked off? (e) Are rope messengers to hand for securing the helicopterif ... considerable time to secure. In an emergency it may even proveimpossible to secure against water pressure on one side.Regular and extensive maintenance is required on the clips to ensurethey are free ... the second lifebuoy is released when the vesselis on a reciprocal course, a reference line of search can beestablished between the first and second lifebuoys. This wouldbe of considerable help...
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Seamanship Techniques 2011 E Part 13 potx

Seamanship Techniques 2011 E Part 13 potx

... SideThis term refers to that side of the vessel exposed to the wind. Seas maybe seen to break over the weather side as opposed to the lee side, whichis the sheltered, favoured side of the vessel.YawWind ... wateris not a solid medium and there is some ‘slip’ related to it.Slip may be considered as the difference between the speed of thevessel and the speed of the engine. It is always expressed ... other, preventing the steering problemsexperienced by the single screw vessel (see Figure 9.9).A distinct advantage of twin screws, apart from the increased speedcreated, is that if the steering...
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