Blackbeard
Normally supported by rail sections and stays that connect to the main deck.
Fore-and-aft vertical plating directly above the upper edge of the ship side surrounding the exposed deck. The sides of the ship above the main deck.
What is a Bulwark?
Fixed longitudinal plates fitted at the turn of the bilge so that their drag dampens roll amplitudes
What is bilge keel?
Holes cut into floors or intercostals to reduce the weight of the ship's build (without reducing strength) and to provide access to tank areas
What are lightening holes?
The "ribs of the ship, covered by plating
What is the frame?
The wooden planks covering the bilges to prevent cargo from coming into contact with water.
What are limber boards?
An angle bar placed with its heel against another angle for additional strength. The flanges of deck stiffeners always brace outboard.
What is reverse frame?
A round or oval hole cut in decks, tanks, etc. for providing access. They can be low, flush or raised.
What are manholes?
Triangular steel plates secured between beams or half-beams and side frames. They compensate for racking stresses and localized stresses from heavy weights.
What are beam knees?
In vessels with steel bilge covers sheathed with planks, this timber is fitted as protection for the plates.
What is limber ceiling or bilge ceiling?
The principle fore-and-aft component of ship framing, located along the centerline of the bottom and connected to stem and stern frames.
What is keel?
The most common form of keel, fitted on the majority of oceangoing vessels
What is flat plate keel?
A fore-and-aft plate sited at the turn of the bilge. The upper edge is normally flanged to allow connection to the tank top plating, While the opposite end is secured to the inside of the shell plate by an angle bar connection. It provides an end seal to the double bottom tanks, having all the floors joining at right angles, up to the collision bulkhead.
What is margin plate?
First strake out from the keel
What is garboard strake?
The strake at the turn of the bilge extending outward to a point where the side rises vertically
What is bilge strake?
Made in separate parts; between floors, frames or beams, etc; the opposite of continuous
What is intercostal?
The fore-and-aft or longitudinal bulkhead erected on the center line or in the same place as the keel. Also a reference line scrived on a transverse bulkhead to indicate the center of the ship.
What is centerline bulkhead?
The top strake, farthest from the keel. Also defined as the continuous row of shell plates on a level with the uppermost continuous deck.
What is sheer strake?
A bottom transverse member mounted in the double bottom to support the inner bottom plating. It can be watertight, solid or a bracket construction.
What is a floor?
Wooden laths connected securely to the ship, which prevent direct contact between the cargo and the ship's side and allow the sweat to flow downwards over the steel ship's side.
What are spar ceilings?
Shell plating that forms the main deck of a ship.
Main deck plating
Each horizontal row of this plating, usually numbered A-B-C-D, beginning with the row next to the keel
What are strakes?
Not made from a single plate, but made from smaller sections welded together. Each plate is given a letter in the vertical direction, starting with A from the bottom. Each plate is given a number in the horizontal direction, starting from aft.
What is shell plating?
Strong transverse beam of timber or iron stretching across a ship from side to side, in order to support the deck and retain the sides at their proper distance.
What is main deck beam?
Shell plating that forms the upper deck of a ship.
What is upper deck plating?
Transverse vertical plate extending from the bottom shell to the inner bottom, usually with large holes for access and weight saving
What is plate floor or solid floor?