105 mm gun T8

105mm gun T8 on carriage T19
105mm gun T8 on carriage T19
Type	Anti-tank gun
Place of origin	United States
Service history
Used by	United States
Production history
Designed	1944–1946
No. built	2 pilot models
Specifications
Mass	8 short tons (16,000 lbs/7,257 kg)
Barrel length	6,825 mm (22.39 ft) L/65
Shell weight	17.7 kilograms (39 lb)
Caliber	105 mm (4.13 in)
Breech	vertical block
Carriage	Split trail
Muzzle velocity	914 metres per second (3,000 ft/s)
Maximum firing range	26,690 m (29,188 yds)

Last updated October 21, 2024

105mm gun T8 was an anti-tank gun developed in the United States in mid-1940s. This gun's design was influenced by German 88 mm Pak 43/41 anti-tank guns captured by the U.S. Army in France. The development started in October 1944; the gun reached trials in February 1946. Soon afterwards the project was cancelled.^[1]

Design

In December, 1942, Allied forces reported that new German armored vehicle designs were resistant to 57 mm anti-tank guns, the largest anti-tank gun available. The US Ordnance Department began preliminary studies on a gun design similar to the German 88 mm Pak 43/41 anti-aircraft gun which was then successfully being used as an anti-tank gun. The first proposal was a combination of the 90 mm M1 Anti-aircraft gun mated to the M2 recoil mechanism from the M2A1 105 mm howitzer. The example was designated 90 mm anti-tank gun T8 on carriage T5.^[2]

The T5 gun carriage proved unacceptable due to structural weaknesses found while towing off-road. After two redesigned carriages were tested, the T5E2 was classified as limited standard. After additional trials at Aberdeen Proving Grounds, the T8 gun was found to be too heavy. Alternative carriages were tested, with no carriage found acceptable.^[2]

Two new gun/carriages were proposed and tested. The final design selected was the T20E1 gun with the T15 carriage. Three T8 guns were completed in 1944, and a production batch of 400 was ordered. One of the three guns was sent to Europe with the Zebra mission in February, 1945. The Zebra team was sent to the ETO to respond to the criticism of the inadequate anti-tank guns that were then in service.^[2]

In early 1945 the entire anti-tank gun issue was re-examined to evaluate the need for large-bore anti-tank guns, as the need in the Pacific did not exist as Japanese armor could easily be penetrated by 37 mm and 57 mm M1 anti-tank guns then available. The Panzerkampfwagen Tiger Ausf. B (King Tiger) and Panzerjäger Tiger Ausf. B (Jagdtiger) were found to be armored beyond the anti-tank guns then in use or proposed. Work was started on a 105 mm version of the T8 using the T19 split trail carriage in October 1944.^[2]

The T8 105 mm anti-tank gun weighed 8 short tons (16,000 lbs/7,257 kg) It had a split trail carriage and magnesium wheels with synthetic rubber tires. In transportation, the mount could be rotated 180 degrees in order to reduce the length of the piece. The gun fired a 17.7 kg (39 lbs) armor-piercing projectile at 914 m/s (3,000 ft/s), resulting in the penetration of 210 mm (8.27 in) at 1,000 m (1,093 yds), 0 degrees.^[2]

Display

Two pilot guns and carriages were built; one of those is on display in the United States Army Ordnance Museum, Aberdeen, Maryland, United States.

Prototype 105 mm T8 Anti-tank gun with carriage T17 in travel mode, with early style combat wheels prior to change to magnesium wheels. 105mmT8.png — Prototype 105 mm T8 Anti-tank gun with carriage T17 in travel mode, with early style combat wheels prior to change to magnesium wheels.

Related Research Articles

The Panther tank, officially Panzerkampfwagen V Panther with ordnance inventory designation: Sd.Kfz. 171, is a German medium tank of World War II. It was used in most European theatres of World War II from mid-1943 to the end of the war in May 1945.

The 90 mm gun M1/M2/M3 was an American heavy anti-aircraft and anti-tank gun, playing a role similar to the German 8.8cm Flak 18. It had a 3.5 in (90 mm) diameter bore, and a 50 caliber barrel, giving it a length of 15 ft (4.6 m). It was capable of firing a 3.5 in × 23.6 in shell 62,474 ft (19,042 m) horizontally, or a maximum altitude of 43,500 ft (13,300 m).

The Ordnance Quick-Firing 6-pounder 7 cwt, or just 6-pounder, was a British 57 mm gun, serving during the Second World War as a primary anti-tank gun of both the British and United States Army. It was also used as the main armament for a number of armoured fighting vehicles.

The 75 mm gun, models M2 to M6, was the standard American medium caliber gun fitted to mobile platforms during World War II. They were primarily mounted on tanks, such as the M3 Lee and M4 Sherman, but one variant was also used as an air-to-ground gun on the B-25 Mitchell medium bomber aircraft. There were five main variants used during the war: M2, M3, M4, M5 and M6.

The M114 is a towed howitzer developed and used by the United States Army. It was first produced in 1942 as a medium artillery piece under the designation of 155 mm Howitzer M1. It saw service with the US Army during World War II, the Korean War, and the Vietnam War, before being replaced by the M198 howitzer.

The M4 Sherman tank was produced in several variants, a result of mass production spread across several manufacturers and several years. It was also the basis for a number of related vehicles and Shermans have been modified by several nations, ranging from upgrades to complete hull conversions for another task. Originally designed in 1941, M4 variants were still used by Israel during the 1967 and 1973 wars with its Arab neighbors.

<span class="mw-page-title-main">M101 howitzer</span> US-made towed howitzer

The M101A1 howitzer is an artillery piece developed and used by the United States. It was the standard U.S. light field howitzer in World War II and saw action in both the European and Pacific theaters and during the Korean War. Entering production in 1941, it quickly gained a reputation for accuracy and a powerful punch. The M101A1 fires 105 mm high explosive (HE) semi-fixed ammunition and has a range of 12,330 yards (11,270 m), making it suitable for supporting infantry.

The 37 mm gun M3 is the first dedicated anti-tank gun fielded by United States forces in numbers. Introduced in 1940, it became the standard anti-tank gun of the U.S. infantry with its size enabling it to be pulled by a jeep. However, the continuing improvement of German tanks quickly rendered the 37 mm ineffective and, by 1943, it was being gradually replaced in the European and Mediterranean theaters by the more powerful British-developed 57 mm gun M1. In the Pacific, where the Japanese tank threat was less significant, the M3 remained in service until the end of the war, but some 57mm guns were issued.

2.8 cm schwere Panzerbüchse 41 or "Panzerbüchse 41" was a German anti-tank weapon working on the squeeze bore principle. Officially classified as a heavy anti-tank rifle, it would be better described, and is widely referred to, as a light anti-tank gun.

The 25 mm Hotchkiss anti-tank gun was a French anti-tank gun from the 1930s, built by the Hotchkiss arsenal, that saw service in the Spanish Civil War, the Second World War and the Indochina War.

The Pak 97/38 was a German anti-tank gun used by the Wehrmacht in World War II. The gun was a combination of the barrel from the French Canon de 75 modèle 1897 fitted with a Swiss Solothurn muzzle brake and mounted on the carriage of the German 5 cm Pak 38 and could fire captured French and Polish ammunition.

The 155 mm gun M1 was a 155 millimeter caliber field gun developed and used by the United States military. Nicknamed "Long Tom", it was produced in M1 and M2 variants, later known as the M59. Developed to replace the Canon de 155mm GPF, the gun was deployed as a heavy field weapon during World War II and the Korean War, and also classed as secondary armament for seacoast defense. The gun could fire a 100 lb (45 kg) shell to a maximum range of 14 mi (23 km), with an estimated accuracy life of 1,500 rounds.

The 3-inch gun M5 was an anti-tank gun developed in the United States during World War II. The gun combined a 3-inch (76.2 mm) barrel of the anti-aircraft gun T9 and elements of the 105 mm howitzer M2. The M5 was issued exclusively to the US Army tank destroyer battalions starting in 1943. It saw combat in the Italian Campaign and on the Western Front in Northwest Europe.

The 240 mm howitzer M1, popularly nicknamed the "Black Dragon", was a towed howitzer used by the United States Army. The 240 mm M1 was designed to replace the World War I era 240 mm howitzer M1918, which was based on a 1911 French design and was outdated by World War II.

The 75mm pack howitzer M1 was a pack howitzer artillery piece used by the United States. Designed to be moved across difficult terrain, gun and carriage could be broken down into several pieces to be carried by pack animals.

The 37 mm gun M1 was an anti-aircraft autocannon developed in the United States. It was used by the US Army in World War II.

<span class="mw-page-title-main">4.5-inch gun M1</span> Field gun

The 4.5 inch gun M1 was a field gun developed in the United States in the beginning of World War II. It shared the same carriage with the 155mm howitzer M1 and fired the same ammunition as the British BL 4.5-inch medium field gun. Beginning in 1944, the weapon was used by the U.S. Army as corps-level artillery; with the end of hostilities, it was declared obsolete.

<span class="mw-page-title-main">T19 Howitzer Motor Carriage</span> Self-propelled gun

The T19 howitzer motor carriage (HMC) was a 105 mm (4.1 in) howitzer mounted on a M3 Half-track chassis. It saw service during World War II with the U.S. Army. Its secondary armament consisted of an air-cooled .50 in (13 mm) M2 machine gun for local defense. It was produced by Diamond T between January 1942 and April 1942.

The 75 mm field gun M1897 on M2 carriage was a field gun and anti-tank gun which was used by the US Army during the interwar period and World War II.

References

Notes

↑ Hogg, Ian V. (1998). Allied Artillery of World War Two. Crowood Press, Ramsbury. ISBN 1-86126-165-9.
1 2 3 4 5 Zaloga, Steven J. (2005). US Anti-tank Artillery 1941-45. New Vanguard 107. illustrated by Brian Delf. Osprey Publishing. ISBN 1-84176-690-9. pp 40-42

Bibliography

Hogg, Ian V. Allied Artillery of World War Two (1998). Crowood Press, Ramsbury. ISBN 1-86126-165-9
Zaloga, Steven J. US Anti-tank Artillery 1941-45. New Vanguard 107. Illustrated by Brian Delf. (2005). Osprey Publishing. ISBN 1-84176-690-9.

This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.

[1] Hogg, Ian V. (1998). Allied Artillery of World War Two. Crowood Press, Ramsbury. ISBN 1-86126-165-9.

[zaloga-2] 1 2 3 4 5 Zaloga, Steven J. (2005). US Anti-tank Artillery 1941-45. New Vanguard 107. illustrated by Brian Delf. Osprey Publishing. ISBN 1-84176-690-9. pp 40-42

[1]

[2]

v t e United States artillery of World War II
Tank guns	37 mm gun M5/M6 75 mm gun M2/M3/M6 76 mm gun M1 3-inch gun M7 90 mm gun M3 90 mm gun T15 105 mm howitzer M4 105 mm gun T5 120 mm gun T53 155 mm gun T7
Anti-tank guns	37 mm M3 57 mm M1 75 mm field gun M1897 on M2 carriage 3 inch M5 90 mm T8 105mm T8
Field, medium and heavy guns	75 mm field gun M1897 on M2 carriage 75 mm howitzer M1 105 mm howitzer M2 105 mm howitzer M3 4.5 inch gun M1 155 mm howitzer M1918 155 mm howitzer M1 155 mm gun M1918MI 155 mm gun M1/M2 "Long Tom" 8 inch howitzer M1/M2 8-inch gun M1 240 mm howitzer M1
Mortars	60 mm mortar M2 81 mm mortar M1 4.2 inch mortar M2 Little David
Other vehicle-mounted	75 mm howitzer M2/M3 75 mm gun M1897 105 mm howitzer M2 155 mm gun M1917MI 155 mm gun M2 8 inch howitzer M1/M2
Anti-aircraft guns	37 mm M1 40 mm M1 3-inch gun M1917 3-inch gun M1918 3-inch anti-aircraft gun M3 90 mm M1 120 mm M1
Coast artillery guns	3-inch gun M1903 90 mm M1 6-inch gun M1903 155 mm gun M1918MI 7"/45 caliber gun 8-inch Mk. VI 8-inch gun M1888 10-inch gun M1895 12-inch coast defense mortar 12-inch gun M1895 14-inch gun M1907 16-inch gun M1895 16-inch gun M1919 16-inch Marks 2 and 3 16-inch howitzer M1920
Railway artillery	8-inch Mk. VI 8-inch gun M1888 12-inch coast defense mortar 14-inch M1920