A formula used to compare potential speeds of displacement or semi-displacement hulls; not used for full planing hulls. Few hulls reach their theoretical speed-length ratio. Formul
Related Terms |
CAPACITY PLAN
A plan outlining the spaces available for fuel, cargo, ballast, fresh water, etc, with guides on weight and volume for spaces at various drafts and displacements
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FLOATING BEARING
A bearing designed or mounted to permit axial displacement between shaft and housing.
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CID
The cubic inch displacement of an engine.
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BUBBLE ACCELERATION ERROR
The error of a bubble sextant observation caused by displacement of the bubble by acceleration or deceleration resulting from motion of a craft. Also called ACCELERATION ERROR.
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LIGHT DISPLACEMENT
The displacement in tons of the ship complete with all outfit, equipment, and machinery on board but excluding all fuel, water in tanks, cargo, stores, passengers, dunnage, and the crew and their effects. The light condition displacement includes the lubricating oil for the machinery and water in the boilers at steaming level. Also called light weight.
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FIXED DISPLACEMENT PUMP
A pump in which the displacement per cycle cannot be varied.
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LIGHT WEIGHT
The displacement in tons of the ship complete with all outfit, equipment, and machinery on board but excluding all fuel, water in tanks, cargo, stores, passengers, dunnage, and the crew and their effects. The light condition displacement includes the lubricating oil for the machinery and water in the boilers at steaming level. Also called light weight.
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LOADED DISPLACEMENT
The displacement of a ship when floating at her greatest allowable draft
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PUMP PRESSURE RELIEF VALVE
Positive displacement pump systems are fitted with a relief (regulating) valve for adjusting pump discharge pressure and to avoid the possibility of rupturing the pump casing or discharge pipe.
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SURGE
The sudden displacement or movement of water in a closed vessel or drum.
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