DECK FITTINGSDeck fittings are used aboard ships and boatsmainly for the securing of mooring lines. All fittingsshown in figure 7-7 are found aboard ship except thebollard, which is a pier fitting. The pad eye shown in thefigure is not used for mooring but for towing othervessels. Different variations of the pad eye are used forsecuring heavy objects and equipment.DAVITSBoats carried aboard ships usually are handled bypowerful cranes and booms. These cranes and boomshook onto slings attached to hoisting points built intothe strong parts of the boat’s structure. Boats stowed atdavits are lowered and hoisted by the davit machinery.Basically, a set of davits is nothing more than a specialcrane that is designed specifically for handling boats ina safe and timely manner.BOAT BOOMSShips that are at anchor or moored to a buoy rig outtheir boat booms for the purpose of mooring their boatswell clear of the side. This method of securing is knownas hauling out to the boom. Forward booms are calledlower booms; after booms are called quarter booms.The boat boom shown in figure 7-8 is a spar that issecured to a gooseneck by a pin on the side of the ship.This arrangement allows free motion fore and aft. Theoutboard end of the boom hangs from a wire vang andtackle combination called the topping lift. Fore-and-aftmotion is controlled by lines called forward and afterguys.A strong line called a guess-warp runs from wellforward on the ship out through a block or blocks on theboom and ends in a metal thimble through which boatscan reeve (pass) their bowlines. A small piece of wood7-4Student Notes:Figure 7-6.—Protection for the side of a ship.Figure 7-7.—Deck fittings.Figure 7-8.—Parts of a boat boom.
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