Swivel gun
Encyclopedia
The term swivel gun usually refers to a small cannon
Cannon
A cannon is any piece of artillery that uses gunpowder or other usually explosive-based propellents to launch a projectile. Cannon vary in caliber, range, mobility, rate of fire, angle of fire, and firepower; different forms of cannon combine and balance these attributes in varying degrees,...

, mounted on a swiveling stand or fork which allows a very wide arc of movement. Another type of firearm referred to as a swivel gun was an early flintlock
Flintlock
Flintlock is the general term for any firearm based on the flintlock mechanism. The term may also apply to the mechanism itself. Introduced at the beginning of the 17th century, the flintlock rapidly replaced earlier firearm-ignition technologies, such as the doglock, matchlock and wheellock...

 combination gun
Combination gun
A combination gun is a break-action hunting firearm that comprises at least two barrels, a rifle barrel and a shotgun barrel, often but not always in an over and under configuration; side-by-side variations are known as cape guns. A ' refers to a combination gun that has three barrels...

 with two barrels that rotated along their axes to allow the shooter to switch between rifled
Rifling
Rifling is the process of making helical grooves in the barrel of a gun or firearm, which imparts a spin to a projectile around its long axis...

 and smoothbore
Smoothbore
A smoothbore weapon is one which has a barrel without rifling. Smoothbores range from handheld firearms to powerful tank guns and large artillery mortars.-History of firearms and rifling:...

 barrels.

Swivel guns should not be confused with pivot gun
Pivot gun
A pivot gun was a type of cannon mounted on a fixed central emplacement which permitted it to be moved through a wide horizontal arc. They were a common weapon aboard ships and in land fortifications for several centuries but became obsolete after the invention of gun turrets...

s, which were far larger weapons mounted on a horizontal pivot.

An older term for the type is "peterero" (alternative spellings include "paterero" and "pederero"). The name was taken from the Spanish word for "stone" (pedrero), because it was the first type of ammunition fired.

Configuration

Swivel guns are among the smallest types of cannon, typically measuring less than 1 m (3 ft) in length and with a bore diameter of up to 3.5 cm (1¼ in). They can fire a variety of ammunition but were generally used to fire grapeshot
Grapeshot
In artillery, a grapeshot is a type of shot that is not a one solid element, but a mass of small metal balls or slugs packed tightly into a canvas bag. It was used both in land and naval warfare. When assembled, the balls resembled a cluster of grapes, hence the name...

 and similar types of small-diameter shot, though they could also fire small caliber round shot
Round shot
Round shot is a solid projectile without explosive charge, fired from a cannon. As the name implies, round shot is spherical; its diameter is slightly less than the bore of the gun it is fired from.Round shot was made in early times from dressed stone, but by the 17th century, from iron...

. Most swivel guns were muzzleloader
Muzzleloader
A muzzleloader is any firearm into which the projectile and usually the propellant charge is loaded from the muzzle of the gun . This is distinct from the more popular modern designs of breech-loading firearms...

s. They were aimed through the use of a wooden handle, somewhat similar in shape to a baseball bat
Baseball bat
A baseball bat is a smooth wooden or metal club used in the game of baseball to hit the ball after the ball is thrown by the pitcher. It is no more than 2.75 inches in diameter at the thickest part and no more than 42 inches in length. It typically weighs no more than 33 ounces , but it...

, attached to the breech
Breech-loading weapon
A breech-loading weapon is a firearm in which the cartridge or shell is inserted or loaded into a chamber integral to the rear portion of a barrel....

 of the weapon.

Some swivel guns were designed as breech-loading swivel gun
Breech-loading swivel gun
A breech-loading swivel gun was a particular type of swivel gun and a small breech-loading cannon invented in the 14th century. It was equipped with a swivel for easy rotation and was loaded by inserting a mug-shaped device called a chamber, pre-filled with gunpowder and projectiles...

s as early as the 16th century, making them among the first such examples of this type of weapon. Breech-loading swivel guns had a breech shaped like a beer mug, which the gunner would take by the handle and insert into the body of the swivel gun with the breech's opening facing forwards. The gunpowder and projectiles were loaded into the breech before it was inserted into the gun. If a number of breeches were prepared beforehand, the gunner could maintain a high rate of fire for a brief period simply by swapping out the used breech and replacing it with a freshly loaded one.

Applications

Swivel guns were used principally aboard sailing ship
Sailing ship
The term sailing ship is now used to refer to any large wind-powered vessel. In technical terms, a ship was a sailing vessel with a specific rig of at least three masts, square rigged on all of them, making the sailing adjective redundant. In popular usage "ship" became associated with all large...

s, serving as short-range anti-personnel ordnance. They were not ship-sinking weapons, due to their small caliber and short range, but could do considerable damage to anyone caught in their line of fire.

Due to their relatively small size, swivel guns were highly portable and could be moved around the deck of a ship quite easily (and certainly much more easily than other types of cannon). They could be mounted on the deck railings of a ship, which provided the gunner with a reasonably steady platform from which to fire. Their portability enabled them to be installed wherever they were most needed; whereas larger cannon were useless if they were on the wrong side of the ship, swivel guns could be carried across the deck to face the enemy.

The small size of swivel guns enabled them to be used by a wide variety of vessels, including those too small to accommodate larger cannons, and also permitted their use on land; they were commonly issued to forts in North America
North America
North America is a continent wholly within the Northern Hemisphere and almost wholly within the Western Hemisphere. It is also considered a northern subcontinent of the Americas...

 in the 18th century and Lewis and Clark took one with them on their famous expedition into the American interior in 1804. Swivel guns also had peaceful uses. They were used for signalling purposes and for firing salutes
21-gun salute
Gun salutes are the firing of cannons or firearms as a military or naval honor.The custom stems from naval tradition, where a warship would fire its cannons harmlessly out to sea, until all ammunition was spent, to show that it was disarmed, signifying the lack of hostile intent...

, and also found uses in whaling
Whaling
Whaling is the hunting of whales mainly for meat and oil. Its earliest forms date to at least 3000 BC. Various coastal communities have long histories of sustenance whaling and harvesting beached whales...

, where bow-mounted swivel guns were used to fire harpoon
Harpoon
A harpoon is a long spear-like instrument used in fishing to catch fish or large marine mammals such as whales. It accomplishes this task by impaling the target animal, allowing the fishermen to use a rope or chain attached to the butt of the projectile to catch the animal...

s, and fowling
Fowling
Fowling is a term which is perhaps better known in the Fens of eastern England than elsewhere. It was more than the commercial equivalent of the field sport of wildfowling, in that it includes all forms of bird catching for meat, feathers or any other part of the bird which may have been sold on...

, where swivel guns mounted on punts
Punt (boat)
A punt is a flat-bottomed boat with a square-cut bow, designed for use in small rivers or other shallow water. Punting refers to boating in a punt. The punter generally propels the punt by pushing against the river bed with a pole...

 were used to shoot flocks of waterfowl
Waterfowl
Waterfowl are certain wildfowl of the order Anseriformes, especially members of the family Anatidae, which includes ducks, geese, and swans....

 (see also punt gun
Punt gun
A punt gun is a type of extremely large shotgun used in the 19th and early 20th centuries for shooting large numbers of waterfowl for commercial harvesting operations and private sport. Punt guns were usually custom-designed and so varied widely, but could have bore diameters exceeding and fire...

).

Swivel guns were extensively used by the kingdoms and empires of Asia, particularly China
China
Chinese civilization may refer to:* China for more general discussion of the country.* Chinese culture* Greater China, the transnational community of ethnic Chinese.* History of China* Sinosphere, the area historically affected by Chinese culture...

 and Korea
Korea
Korea ) is an East Asian geographic region that is currently divided into two separate sovereign states — North Korea and South Korea. Located on the Korean Peninsula, Korea is bordered by the People's Republic of China to the northwest, Russia to the northeast, and is separated from Japan to the...

. The first Chinese swivel guns were cast as early as 1520 after being introduced from Europe, and Korea followed suit by the 1560s. During the Japanese invasions of Korea (1592–1598), Korean naval forces used swivel guns and larger cannon to great effect in interdicting the invading Japanese forces.

External links

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