Part 9 – Ship Terminology

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AFT: Toward the stern (back-end) of the boat.

 

AGROUND: Touching or fast to the bottom.

 

AMIDSHIPS: In or toward the center of the ship.

 

BEARING: The direction of an object expressed either as a true bearing as shown on the chart, or as a bearing relative to the heading of the boat.

 

BILGE: The interior of the hull below the floor boards.

 

BOW: The forward part of a boat.

 

BRIDGE: The location from which a vessel is steered and its speed controlled.

 

BULKHEAD: A vertical partition separating compartments.

 

DISPLACEMENT: The weight of water displaced by a floating vessel (a ships weight).

 

DRAFT: The depth of water a boat draws.

 

GANGWAY: The area of a ship’s side where people board and disembark.

 

HEEL: Constant roll angle – such as caused by a side wind or turning of the vessel. Heeling Moments describes the angles the ship takes in this respect.

 

HELM: The wheel controlling the rudder.

 

HULL: The main body of a vessel.

 

KEEL: The centerline of a boat running fore and aft; the backbone of a vessel.

 

KNOT: A measure of speed equal to one nautical mile (=1.852Klm) per hour.

 

MIDSHIP: Approximately in the location equally distant from the bow and stern.

 

PORT: The left side of a boat looking forward.

 

SOUNDING: A measurement of the depth of liquid in a ship’s tank.

 

STARBOARD: The right side of a boat when looking forward.

 

STERN: The after part (back side) of the boat.

 

WAKE: Moving waves, track or path that a boat leaves behind it, when moving across the waters.

 

WATERLINE: A line painted on a hull which shows the point to which a boat sinks when it is properly trimmed

A few words about CompassAir


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