The bow () is the forward part of the hull of a

ship A ship is a large watercraft that travels the world's oceans and other sufficiently deep waterways, carrying cargo or passengers, or in support of specialized missions, such as defense, research, and fishing. Ships are generally distinguished ...

boat A boat is a watercraft of a large range of types and sizes, but generally smaller than a ship, which is distinguished by its larger size, shape, cargo or passenger capacity, or its ability to carry boats. Small boats are typically found on inl ...

, the point that is usually most forward when the vessel is underway. The aft end of the boat is the

stern The stern is the back or aft-most part of a ship or boat, technically defined as the area built up over the sternpost, extending upwards from the counter rail to the taffrail. The stern lies opposite the bow, the foremost part of a ship. Ori ...

. Prow may be used as a synonym for bow or it may mean the forward-most part of the bow above the waterline.

Function

A ship's bow should be designed to enable the hull to pass efficiently through the water. Bow shapes vary according to the speed of the boat, the seas or waterways being navigated, and the vessel's function. Where sea conditions are likely to promote pitching, it is useful if the bow provides

reserve buoyancy The waterline is the line where the hull of a ship meets the surface of the water. Specifically, it is also the name of a special marking, also known as an international load line, Plimsoll line and water line (positioned amidships), that indi ...

; a flared bow (a raked stem with flared topsides) is ideal to reduce the amount of water shipped over the bow. Ideally, the bow should reduce the resistance and should be tall enough to prevent water from regularly washing over the top of it. Large commercial barges on inland waterways rarely meet big waves and may have remarkably little

freeboard In sailing and boating, a vessel's freeboard is the distance from the waterline to the upper deck level, measured at the lowest point of sheer where water can enter the boat or ship. In commercial vessels, the latter criterion measured relativ ...

at the bow, whereas fast military vessels operating offshore must be able to cope with heavy seas. On slower ships like tankers and barges, a fuller bow shape is used to maximise the volume of the ship for a given length. The bow may be reinforced to serve as an ice-breaker. The forward part of the bow is called the "stem" or "forestem". Traditionally, the stem was a timber (or metal) post into which side planks (or plates) were joined. Some boats such as the

Dutch barge A Dutch barge is a traditional flat-bottomed shoal-draught barge, originally used to carry cargo in the shallow ''Zuyder Zee'' and the waterways of Netherlands. There are very many types of Dutch barge, with characteristics determined by region ...

"aak" or the

clinker-built Clinker built (also known as lapstrake) is a method of boat building where the edges of hull (watercraft), hull planks overlap each other. Where necessary in larger craft, shorter planks can be joined end to end, creating a longer strake or hull ...

Viking Vikings ; non, víkingr is the modern name given to seafaring people originally from Scandinavia (present-day Denmark, Norway and Sweden), who from the late 8th to the late 11th centuries raided, pirated, traded and se ...

longship Longships were a type of specialised Scandinavian warships that have a long history in Scandinavia, with their existence being archaeologically proven and documented from at least the fourth century BC. Originally invented and used by the Nors ...

s have no straight stem, having instead a curved prow.

Types

Several types of bows exist. These include:

Etymology

From

Middle Dutch Middle Dutch is a collective name for a number of closely related West Germanic dialects whose ancestor was Old Dutch. It was spoken and written between 1150 and 1500. Until the advent of Modern Dutch after 1500 or c. 1550, there was no overarch ...

''boech'' or

Old Norse Old Norse, Old Nordic, or Old Scandinavian, is a stage of development of North Germanic languages, North Germanic dialects before their final divergence into separate Nordic languages. Old Norse was spoken by inhabitants of Scandinavia and t ...

''bógr'' (shoulder). Thus it has the same origin as the English "bough" (from the

Old English Old English (, ), or Anglo-Saxon, is the earliest recorded form of the English language, spoken in England and southern and eastern Scotland in the early Middle Ages. It was brought to Great Britain by Anglo-Saxon settlement of Britain, Anglo ...

''bóg'', or ''bóh'', (shoulder, the bough of a tree) but the nautical term is unrelated, being unknown in this sense in English before 1600.n">''Bow'' n
³at OED

Prow

The "prow" (French : ''proue'') is the forward-most part of a ship's bow above the waterline. The terms ''prow'' and "bow" are often used interchangeably to describe the most forward part of a ship and its surrounding parts.

Function

Types

Etymology

Prow

See also

References

Further reading