CID

The cubic inch displacement of an engine.

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

FLOATING BEARING

A bearing designed or mounted to permit axial displacement between shaft and housing.

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.

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.

FIXED DISPLACEMENT PUMP

A pump in which the displacement per cycle cannot be varied.

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.

LOADED DISPLACEMENT

The displacement of a ship when floating at her greatest allowable draft

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.

SURGE

The sudden displacement or movement of water in a closed vessel or drum.

GIMBAL FREEDOM

The maximum angular displacement of a gyro about the output axis of a gimbal. gimballess inertial navigation equipment

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