Unformatted text preview: tealer ----A plate extending into an adjoining
strake as at the end of a drop strake.
Steering Gear ----Apparatus for controlling the
Stem ----Forging, casting, or plating forming
extreme bow of ship and extending from keel to
Step ----To set in place (as applied to a mast);
also, a socket for the end of a must; a support for
the fixed or "hinged" end of a boom.
Stern ----The after or back end of a vessel.
Stern Frame ----A large casting or forging
attached to the after end of a hull to form the
ship's stern. It includes rudder post, propeller
post, and aperture for the propeller.
Stern Tube ----A long bushing or bearing
through the stern to support the end of a
propeller shaft. Stop Water ----Canvas and red lead, or other
material, fitted between two metal parts to make
a watertight joint.
Stowage ----A support or fastening for any gear,
as, anchor or boat stowage.
Strake ----A fore and aft course, or row, of shell
or other plating
Stringer ----A fore and aft member used to give
longitudinal strength. Depending on location,
these are called hold stringers, bilge stringers,
side stringers, etc.
Stringer Deck ----The strake of deck plating
which contacts the shell.
Stringer Plate ----A deck plate at the outboard
edge of deck connected to the shell of a ship
with an angle or a welded joint.
Strong Back ----A supporting girder for a hatch
cover; a rig used in straightening bent plates; a
bar for locking cargo ports.
Strut ----A support for a propeller tail shaft
(used on ships with more than one propeller).
Super structure ----Deck houses, etc., which
are located above shelter deck.
Swash Plate ----A baffle plate in a tank which
prevents excessive surging of a liquid.
Syncrolift (TM) ----A platform fitted with
winches and anchor chain. The winches lower
the platform into the water, the vessel is floated
on and the platform is raised. Sometimes the
vessel can be rolled to a repair station on
railroad track. Propeller on a river towboat. This one has 4
blades and is designed for power rather than
speed. 4 blade propellers have less vibration
than 2 or 3 blade propellers, benefiting the crew.
Stiffener ----An angle bar, T-bar, channel, etc.,
used to stiffen plating of a bulkhead or other
Stool ----A support for a propeller shaft bearing
in the shaft alley. A foundation, etc. T
Tail Shaft ----A short section of a propeller
shaft extending through the stern tube and
carrying the propeller.
Tank barge ----A vessel designed for carrying usually- liquid cargo. Often has an engine and a
pump to assist in transferring cargo, but does not
have main propulsion equipment. E6002 – Ship Terms & Definitions p. 20 © C.G.Daley Tank Top ----The plating over the double
bottom. reference to the way the blades are mounted
under the hull, and the way they turn. Tankerman ----The official USCG
classification of the person that supervises the
transfer of cargo between vessels or vessel and
shore. There are different grades of expertise A,
B, C, D and LFG - relating to the degree of
hazard in relation to fire. Transom ----The main frame at the rudder stock
(cant frames usually radiate from the transom
frame). The very last (most aft) plate on a
welded vessel. Tee-bar ----A structural shape with cross
section resembling the letter T.
Template ----A mold or pattern. Sometimes
made of plywood or paper.
Thrust Bearing ----A bearing or block to resist
end thrust. A bearing on propeller line shaft
which relieves the engine from the driving force
of the propeller.
Thwart ----A seat in a lifeboat. Something that
Tiller ----An arm, attached to rudder head,
which operates the rudder.
Tow Boat ----A vessel generally used on inland
rivers to push barges.
Tow Knee ----On a tow boat (so named because
they push a bunch of barges called a 'tow') there
are almost always 2 vertical supports for the
barges to rest on. These are called tow knees and
they have stairs built in for the crew to get to the
barges. Transverse ----Athwartships; at right angles to
Transverse Frames ----Athwartship members
forming the ship's "ribs." Also see Buck frame.
These are the ribs or frames of the ship, and
when placed in position, give the principal shape
or contour, Transverses are not all the same
distance apart; amidships, where there is the
greatest strain, they are spaced more closely.
The transverses are cut or notched where they
connect on the shell, to allow the longitudinals
to pass through. They are strengthened by clips
at these points.
Travelift (TM) ----A device for lifting vessels
out of the water. Has rubber tires and slings. The
slings are lowered in the water, the vessel is
floated in and lifted out of the water with cable
winches. Once raised, the vessel can be moved
to a station, blocked, etc. and the Travelift can
return to the slip to move another vessel.
Trim ----To shift ballast; to cause a ship to
change its position in the water; drag.
Trunk ----A small casing passing through a
deck, such as is used for ladders or ventilation.
Tug Boat ----A relatively small vessel with a
big engine used to 1/ assist ships...
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- Winter '14
- Nautical terms, Ship construction, stern, Keel, Rudder Stock