A mallet used for passing serving around a line.

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.

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

To take in the slack and secure the standing rigging.

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

To lower, sink deeper.

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.

A navigational instrument used to measure the altitude of celestial bodies

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

Superheater

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, ...

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

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 ...

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

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.

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

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

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

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

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.