One or more objects of characteristic shape and color placed on top of a beacon or buoy to aid in its identification.
Related Terms |
CROWN
The top of the piston in an internal combustion engine above the fire ring, exposed to direct flame impingement.
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OIL RING
A loose ring, the inner surface of which rides a shaft or journal and dips into a reservoir of lubricant from which it carries the lubricant to the top of a bearing by its rotation with the shaft.
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CLEARANCE SPACE
Space between top of piston and the valve plate.
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UP FLOW
The operation of an ion-exchange unit in which solutions are passed in at the bottom and out at the top of the container.
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BIT HEAD
The top of two massive timbers that support the windlass on a sailing barge.
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GUNWALE
The upper edge of the hull. The top timber on the rail round the outer edge of the deck.
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TIMBERHEAD
Top end of ship's timber used above the gunwale
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TURBINE DIAPHRAGM
Partition between pressure stages in a turbine's casing. It holds the vane-shaped nozzles and seals between the stages. Usually labyrinth-type seals are used. One-half of the diaphragm is fitted into the top of the casing, the other half into the bottom.
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TILLER
A lever used for steering, attached to the top of the rudder post. Used mainly on smaller vessels, such as dinghies and rowing boats.
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LOLL
The state of instability caused when a ship is top heavy or has too much water such as from flooding below decks
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