A shot trap is a deficiency in an armoured vehicle's design. It is a location where a shell that has struck but fails to penetrate may ricochet in such a manner as to hit another area of the vehicle where it is more likely to cause damage. [1]
For example, the initial turret design of the Panther, Tiger II, M26 Pershing and KV-1 tanks had shot traps. [2] The lower edge of the curved mantlet acted as a shot trap by deflecting incoming shots downwards towards the hull roof or into the turret ring where the shell could potentially jam the traverse mechanism. In an attempt to minimize the shot trap potential, some late production Panther G and the M26 Pershing T26E5 prototype modified the lower edge of the mantlet. [3] The final Tiger II production turret did not feature the curved front of the early turret, instead using a flat plate sloped back 10 degrees. [4]
The M4 Sherman, officially Medium Tank, M4, was the most widely used medium tank by the United States and Western Allies in World War II. The M4 Sherman proved to be reliable, relatively cheap to produce, and available in great numbers. It was also the basis of several other armored fighting vehicles including self-propelled artillery, tank destroyers, and armored recovery vehicles. Tens of thousands were distributed through the Lend-Lease program to the British Commonwealth and Soviet Union. The tank was named by the British after the American Civil War General William Tecumseh Sherman.
The T-34 is a Soviet medium tank introduced in 1940. Its 76.2 mm (3 in) tank gun was more powerful than its contemporaries while its 60 degree sloped armour provided good protection against anti-tank weapons. The Christie suspension was inherited from the design of American J. Walter Christie's M1928 tank, versions of which were sold turret-less to the Red Army and documented as "farm tractors", after being rejected by the U.S. Army. The T-34 had a profound effect on the conflict on the Eastern Front in the Second World War, and had a lasting impact on tank design. After the Germans encountered the tank in 1941 during Operation Barbarossa, German general Paul Ludwig Ewald von Kleist called it "the finest tank in the world" and Heinz Guderian affirmed the T-34's "vast superiority" over German tanks. Alfred Jodl, chief of operations staff of the German armed forces noted in his war diary "the surprise at this new and thus unknown wunder-armament being unleashed against the German assault divisions," although its armour and armament were surpassed later in the war.
The Tiger II is a German heavy tank of the Second World War. The final official German designation was Panzerkampfwagen Tiger Ausf. B, often shortened to Tiger B. The ordnance inventory designation was Sd.Kfz. 182.. It was known as King Tiger by Allied soldiers, and is also known under the informal name Königstiger.
The IS tanks were a series of heavy tanks developed as a successor to the KV-series by the Soviet Union during World War II. The IS acronym is the anglicized initialism of Joseph Stalin. The heavy tanks were designed as a response to the capture of a German Tiger I in 1943. They were mainly designed as breakthrough tanks, firing a heavy high-explosive shell that was useful against entrenchments and bunkers. The IS-2 went into service in April 1944 and was used as a spearhead by the Red Army in the final stage of the Battle of Berlin. The IS-3 served on the Chinese-Soviet border, the Hungarian Revolution, the Prague Spring and on both sides of the Six-Day War. The series eventually culminated in the T-10 heavy tank.
The Kliment Voroshilov (KV) tanks are a series of Soviet heavy tanks named after the Soviet defence commissar and politician Kliment Voroshilov who operated with the Red Army during World War II. The KV tanks were known for their heavy armour protection during the early stages of the war, especially during the first year of the German invasion of the Soviet Union. In certain situations, even a single KV-1 or KV-2 supported by infantry could halt German formations. The German Wehrmacht at that time rarely deployed its tanks against KVs, as their own armament was too poor to deal with the "Russischer Koloss" – "Russian Colossus".
The Panzerkampfwagen III, commonly known as the Panzer III, was a medium tank developed in the 1930s by Germany, and was used extensively in World War II. The official German ordnance designation was Sd.Kfz. 141. It was intended to fight other armoured fighting vehicles and serve alongside and support the similar Panzer IV, which was originally designed for infantry support. However, as the Germans faced the formidable T-34, more powerful anti-tank guns were needed, and since the Panzer IV had more development potential with a larger turret ring, it was redesigned to mount the long-barrelled 7.5 cm KwK 40 gun. The Panzer III effectively swapped roles with the Panzer IV, as from 1942 the last version of the Panzer III mounted the 7.5 cm KwK 37 L/24 that was better suited for infantry support. Production of the Panzer III ceased in 1943. Nevertheless, the Panzer III's capable chassis provided hulls for the Sturmgeschütz III assault gun until the end of the war.
The Panzerkampfwagen IV, commonly known as the Panzer IV, was a German medium tank developed in the late 1930s and used extensively during the Second World War. Its ordnance inventory designation was Sd.Kfz. 161.
The M26 Pershing was a heavy tank/medium tank of the United States Army. The tank was named after General of the Armies John J. Pershing, who led the American Expeditionary Force in Europe in World War I. It was used in the last months of World War II during the Invasion of Germany and extensively during the Korean War.
The Jagdpanzer 38, originally the leichter Panzerjäger 38(t), known mostly post-war as Hetzer, was a German light tank destroyer of the Second World War based on a modified Czechoslovakian Panzer 38(t) chassis.
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 on the Eastern and Western Fronts from mid-1943 to the end of the war in May 1945.
The M18 Hellcat is a tank destroyer that was used by the United States Army in World War II and the Korean War. A top speed of up to 55 mph (89 km/h) was attained by keeping armor to a minimum, using the innovative Torqmatic automatic transmission, and by equipping the relatively light vehicle with the same main gun used on some variants of the much larger Sherman tank.
The Nahverteidigungswaffe was a roof mounted, breech-loaded, single shot, multi-purpose, 360° rotating grenade launcher that could fire a variety of ammunition. It was typically found on German tanks such as the Panzer IV, Panther I, Tiger I, and Tiger II from 1944 until the end of the war and was intended to replace three previous devices: the Nebelwurfgerät, the Minenabwurfvorrichtung, and pistol ports.
Nazi Germany developed numerous tank designs used in World War II. In addition to domestic designs, Germany also used various captured and foreign-built tanks.
The M10 tank destroyer was an American tank destroyer of World War II. After US entry into World War II and the formation of the Tank Destroyer Force, a suitable vehicle was needed to equip the new battalions. By November 1941, the Army requested a vehicle with a gun in a fully rotating turret after other interim models were criticized for being too poorly designed. The prototype of the M10 was conceived in early 1942 and delivered in April that year. After appropriate changes to the hull and turret were made, the modified version was selected for production in June 1942 as the 3-inch Gun Motor Carriage M10. It mounted a 3-inch gun M7 in a rotating turret on a modified M4 Sherman tank chassis. An alternate model, the M10A1, which used the M4A3 variant chassis, was also produced. Production of the two models ran from September 1942 to December 1943 and October 1942 to November 1943, respectively.
The 76 mm gun M1 was an American World War II–era tank gun developed by the U.S United States Ordnance Department in 1942 to supplement the 75 mm gun on the basic Medium tank M4. It was also used to arm the M18 Hellcat tank destroyer.
The T-43 medium tank was a prototype Soviet medium tank developed during the Second World War as a possible replacement for both the T-34 medium and KV-1 heavy tanks. The project's aim was to build a medium tank with heavier armour, but German advances in tank technology proved better countered by a more heavily armed T-34-85 and the T-43 was cancelled.
The Tiger I was a German heavy tank of World War II that operated beginning in 1942 in Africa and in the Soviet Union, usually in independent heavy tank battalions. It gave the German Army its first armoured fighting vehicle that mounted the 8.8 cm KwK 36 gun. 1,347 were built between August 1942 and August 1944. After August 1944, production of the Tiger I was phased out in favour of the Tiger II.
Prior to the invasion of the Soviet Union during World War II, the German armed forces were not aware of two newly developed Soviet tanks, the T-34 and the KV. As a result, they were surprised when they met them in combat for the first time in June 1941. The Germans' standard anti-tank weapons were found to be ineffective against these new Soviet vehicles. This experience prompted a notable leap in tank development in Nazi Germany, mainly in an effort to counter these new threats.
The Schmalturm was a tank turret designed for use on the Panther Ausf. F medium tank. There was a Krupp proposal to fit it onto the Panzer IV medium tank as well. The turret's shape resembled the Soviet T-34 tank turret with a narrow conical gun mantlet resembling German Jagdpanzer mantlets. It featured a narrow front to maximize protection while minimizing weight. It was both lighter and easier to manufacture than the standard Panther turret. The turret had a stereoscopic rangefinder with lenses on either side of the turret, located in spherical bulges. No Schmalturms entered series production.
The IS-2 is a Soviet heavy tank, the first of the IS tank series named after the Soviet leader Joseph Stalin. It was developed and saw combat during World War II, and saw service in other Soviet allied countries after the war.