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Limbers and caissons

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Limbers and caissons are specialized two-wheeled carts designed to support and move heavy artillery. A limber serves as a towing vehicle for an artillery piece. It supports the trail, which is the rear part of the gun carriage.

CWlimberSIDE
CWlimberSIDE

When a gun is not being moved, its trail rests on the ground. To transport the weapon, the crew raises the trail and lowers it onto the limber. A metal hook called a pintle connects the two parts. This mechanism allows horses or other draft animals to pull the heavy equipment efficiently.

CWlimberTOP
CWlimberTOP

These vehicles work in a coordinated system to keep artillery operational. While the limber pulls the gun, a caisson acts as a dedicated ammunition wagon.

CWcaisson
CWcaisson

The limber usually carries an ammunition chest on top. For a Napoleon 12-pounder gun, this chest held 28 rounds of ammunition. To ensure safety, the chest cover was made of sheet copper. This material prevented stray embers from causing a fire. The caisson carries even more supplies, including two extra ammunition chests, a spare wheel, and an extra limber pole slung underneath.

The logistics of moving these items required significant physical effort and animal power. A full ammunition chest for a Napoleon 12-pounder weighed 650 pounds.

CWForge
CWForge

Because of this weight, crews had to drag or push the chests rather than lifting them. For field artillery, six horses were the preferred team, though four was the minimum. Horses were harnessed in pairs on either side of the limber pole. Drivers rode on the near horse, which is the horse on the left side. They held reins for both their own horse and the off horse on the right.

15 lecie 3 pal Leg. w Zamościu
15 lecie 3 pal Leg. w Zamościu

Different types of artillery required different equipment configurations. Field artillery limbers were designed for mobility and included ammunition chests. In contrast, siege artillery limbers were used for much heavier guns and did not have ammunition chests.

CWSiegeLimberSide
CWSiegeLimberSide

Moving these massive siege guns or howitzers required much more power, often needing between six and ten horses. The limber system also supported other specialized wagons. A battery wagon carried spare parts and paint. A traveling forge was used by a blacksmith to repair hardware. The ammunition chests on these wagons carried specific tools for carpenters, saddle-makers, or blacksmiths.

The design of these carriages underwent significant historical development. The British originally developed a new system of carriages. The French later adopted this system, and the Americans subsequently copied it from the French.

Limber1461
Limber1461

By the time of the American Civil War, U.S. Army equipment was essentially identical to Confederate equipment. This equipment was also very similar to what other nations were using. During this era, the field artillery limber reached its archetypal form. This included two wheels, an ammunition chest, a pintle hook, and a central pole for the horses.

During active combat, the placement of these vehicles was carefully managed. The limber was typically kept about six yards behind the artillery piece, depending on the terrain. The caisson was positioned even farther to the rear of the firing line. Ideally, the caisson was placed behind natural cover, such as a ridge. This helped protect the extra ammunition from harm. To maintain a constant supply, crews would exchange the limber and caisson once the ammunition in the limber's chest was exhausted. The middle chest from the caisson would then be moved forward to the limber.

As technology progressed, the role of horse-drawn limbers changed. The widespread use of trucks and artillery tractors eventually replaced horses as the primary movers. Most armies moved away from these systems after the Second World War. However, some designs remained relevant for a time. For example, the British 25-pdr was designed to be towed with a trailer. This trailer provided a vital over-run braking system for the gun. The No. 27 trailer also carried 32 rounds of ammunition and included a stores tray and brackets for a traversing platform.

Despite the shift to motorized transport, caissons maintain a significant role in modern traditions. In the United States, caissons are used to carry caskets during state funerals for government dignitaries.

SMA Dunway Burial at Arlington National Cemetery 2008
SMA Dunway Burial at Arlington National Cemetery 2008

At Arlington National Cemetery, the Caisson Platoon of The Old Guard performs these duties. In British tradition, the use of caissons for funerals follows specific customs. For the funerals of British monarchs, the horses are replaced by a detail from the Royal Navy. In these instances, the coffin is often placed on a platform atop a gun carriage.

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🖼️ Images & Media (8)
File:15 lecie 3 pal Leg. w Zamościu.jpg
15 lecie 3 pal Leg. w Zamościu.jpg
File:Limber1461.jpg
Limber1461.jpg
File:CWlimberSIDE.jpg
CWlimberSIDE.jpg
File:CWlimberTOP.jpg
CWlimberTOP.jpg
File:CWcaisson.jpg
CWcaisson.jpg
File:CWForge.jpg
CWForge.jpg
File:CWSiegeLimberSide.jpg
CWSiegeLimberSide.jpg
File:SMA Dunway Burial at Arlington National Cemetery 2008.jpg
SMA Dunway Burial at Arlington National...
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