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Rows of portholes on the hull of Swedish HM Pansarskepp Gustaf V with gun Bofors 283 mm (until 1957).Ī porthole consists of at least two structural components and is, in its simplest form, similar to any other type of window in design and purpose. The use of the word "sidescuttle" instead of "porthole" is meant to be broad, including any covered or uncovered hole in the side of the vessel. It is also used in related rules and regulations for the construction of ships. When closed, the porthole provides a strong water-tight, weather-tight and sometimes light-tight barrier.Ī porthole on a ship may also be called a sidescuttle or side scuttle (side hole), as officially termed in the International Convention for the Safety of Life at Sea.
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It also affords below-deck occupants a limited view to the outside world. On a ship, the function of a porthole, when open, is to permit light and fresh air to enter the dark and often damp below- deck quarters of the vessel.
#FRONT DOOR WITH PORTHOLE WINDOW WINDOWS#
Though the term is of maritime origin, it is also used to describe round windows on armored vehicles, aircraft, automobiles (the Ford Thunderbird a notable example) and even spacecraft. Louis look out through the portholes of the ship while docked in the port of HavanaĪ porthole, sometimes called bull's-eye window or bull's-eye, is a generally circular window used on the hull of ships to admit light and air.