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 ... messengers about the fouled cables. This methodis effectively the same as the one described, but the use of two wirestends to expedite the work.Clearing a Foul Hawse – Procedure (Figure 2. 22) 1....
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Seamanship Techniques 2011 E Part 10 ppsx
... 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 ... 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 ... the operation.85MeteorologySevere wear of the outer shell plating will be experienced at thewaterline level, and for some height and depth above this level, accordingto the thickness of the...
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Seamanship Techniques 2011 E Part 12 pps
... 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 ... after the fire was extinguished.148 Seamanship Techniques DogHingeWedgeBeamSteelbulkheadDoorDogFrameWedgeSteelbulkheadCarlingbeamHalf frameVerticalframeBeamVerticalframeBeamGunmetalnutSlidingdoorFigure ... 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 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
... 300 2 2×D 2 = 27 00 D = 27 00Diameter of rope = 51.96 mm = 52 mmEXAMPLE 2 Calculate the size of flexible steel wire rope to use if the strees on thehauling part of the wire is 3.75 tonnes. ... be secured between legsto prevent the rig collapsing and to provide extra strength.The gyn can be erected manually when the legs are of limited length.Should the length of legs be unmanageable, ... remembered that less friction is encountered whenusing sheaves of a large diameter than sheaves of a small diameter. SimilarlyNB. Helicopter have largely superseded the useof breeches buoy operations.105Wirework...
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Seamanship Techniques 2011 E Part 6 ppt
... side8.5"Engine air inlet andcabin pressure reliefDisengaging apparatusrelease handleSteering wheelEmergency fillerHelmsman’s seatEngine exhaustAir bottlesMarine diesel engineSprinkler pumpHydraulic ... the senhouseslip and clearing away the securing link. Once the slip and bottle screware released, the gripe can be passed back over the boat and the endcleared. However, some gripes are interconnected ... operation.In re-securing the gripes the bottle screw arrangement will need tobe opened up, in order to pass the senhouse slips. Once this is done, thegripes can be re-tensioned by use of the screw. A...
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Seamanship Techniques 2011 E Part 8 potx
... 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 ... differences between the construction ofa 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 ... line being geared down so that nautical miles are registered.There are three dials on the face, one to record tenths of a mile, one torecord miles, and one to record hundreds of miles. The clock...
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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 ... samebarometric pressure.IsothermsThese are lines drawn on a weather map to connect areas of the sametemperature, and they may also be used to express the sea or airtemperatures. 29 Speed ... 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...
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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 ... seen.Figure 5 .24 Vessel engaged in dredging operations byday.Sources of reference: Rules 3, 27 andAnnex 1.Figure 5 .25 Mine clearance operations.Sources of reference: Rules 3, 22 , 27 ( f ),30...
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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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