A mallet used for passing serving around a line.

Category:Sea Words

The gauge pressure at which a safety valve visibly and audibly opens or at setting which a relief valve discharges an unbroken stream of liquid.

Category:Sea Words

To give the steersman the de-sired course to be steered.

Category:Sea Words

To take in the slack and secure the standing rigging.

Category:Sea Words

A thermostat that can be set to automatically lower temperatures in an unoccupied house and raise them again before the occupant returns.

Category:Energy Terms

To lower, sink deeper.

Category:Sea Words

Said of a vessel when water level has fallen from the level at which she would float, so she would be aground and need to wait for the next tide before re-floating. Also said of the water that has receded and caused a vessel to go aground.

Category:Sea Words

A navigational instrument used to measure the altitude of celestial bodies

Category:Sea Words

SF

1.Starboard Forward.2.Sparring Fitted3.Stowage Factor

Category:Abbreviations

SH

Superheater

Category:Abbreviations

A U-shaped fitting closed with a pin across the open ends, the pin sometimes being threaded at one end and sometimes held in place with a cotter pin, and used to secure sails to lines or fittings, lines to fittings, fittings to fittings, anchors to chain, ...

Category:Sea Words

A U-shaped piece of iron or steel with eyes in the end closed by a shackle pin.

Category:Sea Words

A measure of window glazing performance that is the ratio of the total solar heat gain through a specific window to the total solar heat gain through a single sheet of double-strength glass under the same set of conditions; expressed as a number between 0 ...

Category:Energy Terms

A cylinder used to carry rotating machine parts, such as pulleys and gears, to transmit power or motion; such as a propeller shaft.

Category:Sea Words

The part of the rotating element on which the rotating parts are mounted and by means of which energy is transmitted from the prime mover.

Category:Sea Words

Covered tunnels within a ship through which the tail shafts pass.

Category:Sea Words

The power required at the compressor drive shaft. Losses in external transmissions such as gears and belt drives are not included.

Category:Sea Words

A heavy longitudinal timber placed over the keel in a ship's stern through which the propeller shaft passes.

Category:Sea Words

Devices that may be used to position the impeller or to protect the shaft.

Category:Sea Words

The dimensionless number obtained when the difference between maximum and minimum instantaneous shaft speeds during one period is divided by the arithmetic mean of these two.

Category:Sea Words