Flagstaff Hill Maritime Museum and Village
Weapon - Carronade, 1840
The carronade was designed as a short-range naval weapon with a low muzzle velocity for merchant ships, but it also found a niche role on warships. It was produced by the Carron Iron Works and was at first sold as a complete system with the gun, mounting, and shot altogether. Carronades initially became popular on British merchant ships during the American Revolutionary War. A lightweight gun that needed only a small gun crew and was devastating at short range was well suited to defending merchant ships against French and American privateers.
The invention of the cannon is variously attributed to Lieutenant General Robert Melville in 1759, or to Charles Gascoigne, manager of the Carron Company from 1769 to 1779. In its early years, the weapon was sometimes called a "mellvinade" or a "gasconade". The carronade can be seen as the culmination of a development of naval guns reducing the barrel length and thereby the gunpowder charge.
The Carron Company was already selling a "new light-constructed" gun, two-thirds of the weight of the standard naval gun and charged with one-sixth of the weight of the ball in powder before it introduced the carronade, which further halved the gunpowder charge. The theory of its design was to use less powder and had other advantages that were advertised in the company's sales pamphlet of the time, state. The smaller gunpowder charge reduced the barrel heating in action, also reduced the recoil. The mounting, attached to the side of the ship on a pivot, took the recoil on a slider, without altering the alignment of the gun. The pamphlet advocated the use of woollen cartridges, which eliminated the need for wadding and worming, although they were more expensive.
Carronades also simplified gunnery for comparatively untrained merchant seamen in both aiming and reloading that was part of the rationale for adopting the gun. Other advantages promoted by the company were. The replacement of trunnions by a bolt underneath, to connect the gun to the mounting, reduced the width of the carriage that enhanced the wide angle of fire.
A merchant ship would almost always be running away from an enemy, so a wide-angle of fire was much more important than on a warship. A carronade weighed a quarter as much as a standard cannon and used a quarter to a third of the gunpowder charge. This reduced charge allowed Carronades to have a shorter length and much lighter weight than long guns. Increasing the size of the bore and ball reduces the required length of the barrel. The force acting on the ball is proportional to the square of the diameter, while the mass of the ball rises by the cube, so acceleration is slower; thus, the barrel can be shorter and therefore lighter. Long guns were also much heavier than Carronades because they were over-specified to be capable of being double-shotted, (to load cannons with twice the shot, for increased damage at the expense of range), whereas it was dangerous to do this in a carronade. A ship could carry more carronades, or carronades of a larger calibre, than long guns, and carronades could be mounted on the upper decks, where heavy long guns could cause the ship to be top-heavy and unstable. Carronades also required a smaller gun crew, which was very important for merchant ships, and they were faster to reload.
The small bore carronade and carriage is part of a collection of nineteenth Century Flagstaff Hill Guns and Cannon, which is classified as being of significance and was made a few years after the beginning of Queen Victoria's reign in 1837 and fires a 6 lb pound cannon ball.
This nineteenth century artillery piece is a rare and representative item of artillery of this era, used predominately on ships, both military and merchant. The artillery piece, individually and as part of the collection, is highly significant for its historical, scientific and aesthetic reasons at the state, national and world level.
This carronade represents the methods of artillery technology, its advancement and its modifications to suit dangerous situations that sailors encountered from attacks from free booters (pirates, living from plunder) or others at the time.
Carronade firing a 6 lb cast iron ball, with a smooth bore barrel 6.5 cm in dia the item is mounted on stepped wooden carriage with wooden wheels. Cannon barrel can have its elevation adjusted via a wooden wedge. Gun carriage has loops for locating and holding in position to a deck by ropes. Carriage is a replica made 1982Cast into the barrel is the royal emblem of Queen Victoria (VR "Victoria Regina") indicating the carronade was cast during Queen Victoria's reign / 1840 & 4-2-0 denoting the weight of the barrel. Right hand trunnion has a serial number “8708”. Also on top of the barrel is the British "Board of Ordinance" identifying mark a broad arrow indicating the carronade was in military use. flagstaff hill, warrnambool, shipwrecked coast, flagstaff hill maritime museum, maritime museum, shipwreck coast, flagstaff hill maritime village, great ocean road, colonial defences, victoria’s coastal defences, warrnambool fortification, warrnambool garrison battery, warrnambool volunteer corps, ordinance, armaments, garrison gun, smooth bore cannon, carronade, black powder, 12 pounder, 1840, artillery, lieutenant general robert melville, charles gascoigne, carron company, mellvinade, gasconade
Federation University Historical Collection
Federation University Historical Collection
Flagstaff Hill Maritime Museum and Village
Robin Boyd Foundation
Whitehorse Historical Society Inc.