GLOSSARY. - CONT - TM-55-1915-200-100031

TM 55-1915-200-10

1-6. GLOSSARY. - CONT

RUDDER

Flat structure hung vertically on the sternpost, just aft of

the screw, and used to steer a vessel by offering

resistance to the water when turned to an angle with the

centerline.

All lights required to be shown by a vessel that is under

RUNNING LIGHTS

way.

The dimensions of the structural parts of a vessel, as

SCANTLINGS

frames, plates, and girders.

Length of anchor chain or cable to which a vessel is

SCOPE

riding.

Propeller, located at a vessel's stern.

SCREW

Small drains in a vessel's bulwark which are located

SCUPPERS

near the deck.

Rod transmitting power from a vessel's engine to its

SHAFT

screw.

Wheel inside a block.

SHEAVE

A vessel's medical clinic.

SICK BAY

To twist around on its axis.

SLEW

To stop a chain or hawser suddenly.

SNUB

Pipe from an upper deck to a lower compartment or tank

SOUNDING PIPE

to measure height of water or liquid in a compartment or

tank. One for each area to be sounded. Terminates

with a screw plug.

Depth of water surrounding a vessel which

SOUNDINGS

determined by use of leadline or other equipment.

Right side of a vessel looking forward.

STARBOARD

The vertical or nearly vertical forward extension of the

STEM

keel, to which the forward ends of the strakes are

attached.

The after end of a vessel.

STERN

To put away, to lock up for safekeeping.

STOW

Continuous line of plates running from bow to stern that

STRAKE

contributes to a vessel's skin.

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