The head (pl. heads) is a ship's toilet. The name derives from sailing ships in which the toilet area for the regular sailors was placed at the head or bow of the ship.
The head on the beakhead of the 17th-century warship Vasa. The toilets are the two square box-like structures on either side of the bowsprit. On the starboard side, there are still minor remnants of the original seat.
In sailing ships, the toilet was placed in the bow somewhat above the water line with vents or slots cut near the floor level allowing normal wave action to wash out the facility. Only the captain had a private toilet near his quarters, at the stern of the ship in the quarter gallery.
The plans of 18th-century naval ships do not reveal the construction of toilet facilities when the ships were first built. The Journal of Aaron Thomas aboard HMS Lapwing in the Caribbean Sea in the 1790s records that a canvas tube was attached, presumably by the ship's sailmaker, to a superstructure beside the bowsprit near the figurehead, ending just above the normal waterline.
In many modern boats, the heads look similar to seated flush toilets but use a system of valves and pumps that brings sea water into the toilet and pumps the waste out through the hull (in place of the more normal cistern and plumbing trap) to a drain. In small boats the pump is often hand operated. The cleaning mechanism is easily blocked if too much toilet paper or other fibrous material is put down the pan.
Submarine heads face the problem that at greater depths higher water pressure makes it harder to pump the waste out through the hull. As a result, early systems could be complicated, with the head fitted to the United States NavyS-class submarine being described as almost taking an engineer to operate.[1] Making a mistake resulted in waste or seawater being forcibly expelled back into the hull of the submarine.[1] This caused the loss of German submarine U-1206.
The toilet on the World War IBritish E-class submarine was considered so poor by the captain of HMS E35 that he preferred the crew to wait to relieve themselves until the submarine surfaced at night.[2] As a result, many submarines only used the heads as an extra storage space for provisions.[2]
Aboard sailing ships and during the era when all hands aboard a vessel were men, the heads received most of their use for defecation; for routine urination, however, a pissdale was easier to access and simpler to use.
Head in British submarine HMS Alliance (c.1945–1973)
Head in Soviet submarine of the Foxtrot class (c.1957–1983)
^ abJones, David; Peter Nunan (2004). U.S. subs down under Brisbane, 1942-1945. Naval Institute Press. pp. 28–29. ISBN1-59114-644-5.
^ abMackay, Richard (2003). Precarious Existence British Submariners in World War One. Periscope Publishing Ltd. p. 88. ISBN1-904381-17-0.
February 28, 2023
head, watercraft, other, uses, head, disambiguation, head, heads, ship, toilet, name, derives, from, sailing, ships, which, toilet, area, regular, sailors, placed, head, ship, head, beakhead, 17th, century, warship, vasa, toilets, square, like, structures, eit. For other uses see head disambiguation The head pl heads is a ship s toilet The name derives from sailing ships in which the toilet area for the regular sailors was placed at the head or bow of the ship The head on the beakhead of the 17th century warship Vasa The toilets are the two square box like structures on either side of the bowsprit On the starboard side there are still minor remnants of the original seat Design EditThis section needs additional citations for verification Please help improve this article by adding citations to reliable sources Unsourced material may be challenged and removed May 2014 Learn how and when to remove this template message In sailing ships the toilet was placed in the bow somewhat above the water line with vents or slots cut near the floor level allowing normal wave action to wash out the facility Only the captain had a private toilet near his quarters at the stern of the ship in the quarter gallery The plans of 18th century naval ships do not reveal the construction of toilet facilities when the ships were first built The Journal of Aaron Thomas aboard HMS Lapwing in the Caribbean Sea in the 1790s records that a canvas tube was attached presumably by the ship s sailmaker to a superstructure beside the bowsprit near the figurehead ending just above the normal waterline In many modern boats the heads look similar to seated flush toilets but use a system of valves and pumps that brings sea water into the toilet and pumps the waste out through the hull in place of the more normal cistern and plumbing trap to a drain In small boats the pump is often hand operated The cleaning mechanism is easily blocked if too much toilet paper or other fibrous material is put down the pan Submarine heads face the problem that at greater depths higher water pressure makes it harder to pump the waste out through the hull As a result early systems could be complicated with the head fitted to the United States Navy S class submarine being described as almost taking an engineer to operate 1 Making a mistake resulted in waste or seawater being forcibly expelled back into the hull of the submarine 1 This caused the loss of German submarine U 1206 The toilet on the World War I British E class submarine was considered so poor by the captain of HMS E35 that he preferred the crew to wait to relieve themselves until the submarine surfaced at night 2 As a result many submarines only used the heads as an extra storage space for provisions 2 Aboard sailing ships and during the era when all hands aboard a vessel were men the heads received most of their use for defecation for routine urination however a pissdale was easier to access and simpler to use Head in British submarine HMS Alliance c 1945 1973 Head in Soviet submarine of the Foxtrot class c 1957 1983 Head in submarine USS Growler mid 1950s References Edit a b Jones David Peter Nunan 2004 U S subs down under Brisbane 1942 1945 Naval Institute Press pp 28 29 ISBN 1 59114 644 5 a b Mackay Richard 2003 Precarious Existence British Submariners in World War One Periscope Publishing Ltd p 88 ISBN 1 904381 17 0 Retrieved from https en wikipedia org w index php title Head watercraft amp oldid 1065693618, wikipedia, wiki, book, books, library,
