The other approach uses the concept of lost buoyancy.Ĭomes from the Arabic “Emir” or “Amir” which means “First commander” and “Al-bahr which means “the sea”. It regards the water which has entered as an added weight, the basic hull envelope remaining. One method used in the calculation of a ship’s damaged stability when it is partially fl ooded.

The effective increase in mass of a hull, due to the entrained water, when in motion. The portable steps from the gangway down to the waterline.Ī solid piece of metal shaped like an acorn, and used to finish off the top of an upright in a railing contructed of pipe. Holes cut in ship’s structure to permit entering or leaving various compartments. The next grade above the beginning grade of ordinary seaman in the deck crew.Ībove decks without concealment of deceit (out in the open).Ī bushing plate around a hole in which a pintle works. The bearing of an object 90 degrees from ahead (in a line with the middle of the ship). Get away from the ship, as in an emergency. Said of the bearing of an object which bears between the beam and the stern (further back than the ship’s middle).

Thus, the mainmast is abaft the foremast (in back of). 2HĪ relative term used to describe the location of one object in relation to another, in which the object described is farther aft than the other. The majority of the information presented below has been compiled from various sources either from the internet or through personal day to day work experience and is being updated at regular intervals. Please do not hesitate to contact us for any queries or ideas for improvement of the maritime dictionary. The best way to find the definition of the term you are searching for is by pressing ctr+f in your web browser to pop up the search bar and type the term you want to find. The OOW Maritime Dictionary is updated at frequent intervals.

Ship construction terms and definitions