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Seamanship Techniques 2011 E Part 15 pot

Seamanship Techniques 2011 E Part 15 pot

Seamanship Techniques 2011 E Part 15 pot

... spillages were encountered and good weather prevailedat the time. However, over large areas the time required to establish thebarrier was found to be excessive, and barrier equipment needed toencircle ... ropemessenger behind from the direction of the cargo hookend. Detach the old runner once clear of the derrick andsecure the Flemish eye of a new runner to the messenger.Pull back on the messenger, ... smaller vessels. In manyrespects the experience has been transferable, but in other areas newconcepts of safe handling have had to be developed. Controlling the280 Seamanship Techniques 1....
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Seamanship Techniques 2011 E Part 8 potx

Seamanship Techniques 2011 E Part 8 potx

... Checks thatrudder indicatorshows maximum porthelmEase the wheel to Ease the wheel to Allows the wheel to Wheel eased toport ten degrees port ten degrees, return towards the port ten degrees,sir ... 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 ... 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 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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Seamanship Techniques 2011 E Part 14 pot

Seamanship Techniques 2011 E Part 14 pot

... the increase in the velocity of water is considered in relation to thepressure under the hull form, a reduction of pressure will be experienced,causing the ship to settle deeper in the water. ... this eases the weight on thetowline and allows the ship’s personnel to slip the tow. However, inan emergency, if the eye had been secured over the bitts, the ship’spersonnel would not have been ... practice to secure the eye of atug’s wire over the vessel’s bitts. The control of the station is thenpassed to the tug, and the ship becomes dependent on the tug’sMaster to come astern. Effectively...
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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

... 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 process of raising the legswhen ... tubularsteel. Wooden derricks, which generally lifted only up to 3 tonnes, havelargely been superseded.At the heel of the derrick (Figure 5.1) either a single flange or adouble flange will be welded ... purchase secured atthe derrick head, the hauling part being led to the heel of the derrick.Allowing 10 per cent per sheave for friction, calculate the stress on thederrick head shackle securing...
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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 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 ... 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.29Speed...
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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 ... 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 ... 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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