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The ''Sturmgeschütz'' III (StuG III) was an
assault gun An assault gun (from , , meaning "assault gun") is a type of armored infantry support vehicle and self-propelled artillery, mounting an infantry support gun on a protected self-propelled chassis, intended for providing infantry with heavy di ...
produced by
Nazi Germany Nazi Germany, officially known as the German Reich and later the Greater German Reich, was the German Reich, German state between 1933 and 1945, when Adolf Hitler and the Nazi Party controlled the country, transforming it into a Totalit ...
during
World War II World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
. It was the most-produced German fully tracked
armoured fighting vehicle An armoured fighting vehicle (British English) or armored fighting vehicle (American English) (AFV) is an armed combat vehicle protected by vehicle armour, armour, generally combining operational mobility with Offensive (military), offensive a ...
, and second-most produced German armored combat vehicle of any type after the Sd.Kfz. 251
half-track A half-track is a civilian or military vehicle with wheels at the front for steering and continuous tracks at the back to propel the vehicle and carry most of the load. A half-track combines the soft-ground traction of a tank with the Car handl ...
. It was built on a slightly modified
Panzer III The ''Panzerkampfwagen III (Pz.Kpfw. III)'', commonly known as the Panzer III, was a medium tank developed in the 1930s by Nazi Germany, Germany, and was used extensively in World War II. The official German ordnance designation was List of Sd.K ...
chassis, replacing the turret with an armored, fixed superstructure mounting a more powerful gun. Initially intended as a mobile assault gun for direct-fire support for infantry, the StuG III was continually modified, and much like the later '' Jagdpanzer'' vehicles, was employed as a
tank destroyer A tank destroyer, tank hunter or tank killer is a type of armoured fighting vehicle, predominantly intended for anti-tank duties. They are typically armed with a direct fire anti-tank gun, artillery gun, also known as a self-propelled anti-ta ...
.


Development

The '' Sturmgeschütz'' originated from German experiences in
World War I World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...
, when it was discovered that, during the offensives on the Western Front, the infantry lacked the means to engage fortifications effectively. The artillery of the time was heavy and not mobile enough to keep up with the advancing
infantry Infantry, or infantryman are a type of soldier who specialize in ground combat, typically fighting dismounted. Historically the term was used to describe foot soldiers, i.e. those who march and fight on foot. In modern usage, the term broadl ...
to destroy bunkers, pillboxes, and other minor fortifications with direct fire. Although the problem was well known in the German army, it was General
Erich von Manstein Fritz Erich Georg Eduard von Manstein (born Fritz Erich Georg Eduard von Lewinski; 24 November 1887 – 9 June 1973) was a Germans, German Officer (armed forces), military officer of Poles (people), Polish descent who served as a ''Generalfeld ...
who is considered the father of the ''Sturmartillerie'' (assault artillery). The initial proposal was from von Manstein and submitted to General
Ludwig Beck Ludwig August Theodor Beck (; 29 June 1880 – 20 July 1944) was a German general who served as Chief of the German General Staff from 1933 to 1938. Beck was one of the main conspirators of the 20 July plot to assassinate Adolf Hitler. ...
in 1935, suggesting that ''Sturmartillerie'' units should be used in a direct-fire support role for infantry divisions instead of fully mechanized
Panzer {{CatAutoTOC, numerals=no Words and phrases Germanic words and phrases Words and phrases by language la:Categoria:Verba Theodisca ...
units. On 15 June 1936,
Daimler-Benz Mercedes-Benz Group AG (formerly Daimler-Benz, DaimlerChrysler, and Daimler) is a Germany, German Multinational corporation, multinational Automotive industry, automotive company headquartered in Stuttgart, Baden-Württemberg, Germany. It is o ...
AG received an order to develop an armoured infantry support vehicle capable of mounting a calibre artillery piece. The gun mount's fixed, fully integrated
casemate A casemate is a fortified gun emplacement or armoured structure from which guns are fired, in a fortification, warship, or armoured fighting vehicle.Webster's New Collegiate Dictionary When referring to antiquity, the term "casemate wall" ...
superstructure allowed a limited traverse of 20° and provided overhead protection for the crew. The height of the vehicle was not to exceed that of the average soldier. Daimler-Benz AG used the chassis and running gear of its recent Panzer III medium tank as the basis for the new vehicle. Prototype manufacture was passed over to Alkett, which produced five prototypes in 1937 on Panzer III Ausf. B chassis. These prototypes featured a
mild steel Carbon steel is a steel with carbon content from about 0.05 up to 2.1 percent by weight. The definition of carbon steel from the American Iron and Steel Institute (AISI) states: * no minimum content is specified or required for chromium, cobalt ...
superstructure and a
Krupp Friedrich Krupp AG Hoesch-Krupp (formerly Fried. Krupp AG and Friedrich Krupp GmbH), trade name, trading as Krupp, was the largest company in Europe at the beginning of the 20th century as well as Germany's premier weapons manufacturer dur ...
short-barrelled,
howitzer The howitzer () is an artillery weapon that falls between a cannon (or field gun) and a mortar. It is capable of both low angle fire like a field gun and high angle fire like a mortar, given the distinction between low and high angle fire break ...
-like in appearance, 7.5 cm StuK 37 L/24 cannon. Production vehicles with this gun were known as ''Gepanzerte Selbstfahrlafette für Sturmgeschütz 7.5 cm Kanone Ausführung A bis D (Sd.Kfz.142)''. While the StuG was considered self-propelled artillery, it was not clear which land combat arm of the
German Army The German Army (, 'army') is the land component of the armed forces of Federal Republic of Germany, Germany. The present-day German Army was founded in 1955 as part of the newly formed West German together with the German Navy, ''Marine'' (G ...
would handle the new weapon. The ''
Panzerwaffe , later also ( German for " Armoured Force", "Armoured Arm" or "Tank Force". : ombat"arm") refers to a command within the of the German , responsible for the affairs of panzer (tank) and motorized forces shortly before and during the S ...
'' (armoured corps), the natural user of tracked fighting vehicles, had no resources to spare for the formation of StuG units and neither did the infantry. It was agreed that it would best be employed as part of the artillery arm. The StuGs were organized into battalions (later renamed "brigades" for disinformation purposes) and followed their own doctrine. Infantry support using direct fire was its intended role. Later, there was also a strong emphasis on its use as an anti-tank gun. As the StuG was designed to fill an infantry close support combat role, early models were fitted with a
howitzer The howitzer () is an artillery weapon that falls between a cannon (or field gun) and a mortar. It is capable of both low angle fire like a field gun and high angle fire like a mortar, given the distinction between low and high angle fire break ...
-pattern, low-velocity 7.5 cm StuK 37 L/24 gun, similar to those used by the earliest versions of the fully turreted
Panzer IV The IV (Pz.Kpfw. IV), commonly known as the Panzer IV, is 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 Panzer IV was the most numer ...
. Low-velocity shells are lightly built of thin steel and carry a large charge of explosive, to destroy soft-skin targets and blast fortifications. Such shells do not penetrate armour well. After the Germans encountered the
Soviet The Union of Soviet Socialist Republics. (USSR), commonly known as the Soviet Union, was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 until Dissolution of the Soviet ...
KV-1 and
T-34 The T-34 is a Soviet medium tank from World War II. When introduced, its 76.2 mm (3 in) tank gun was more powerful than many of its contemporaries, and its 60-degree sloped armour provided good protection against Anti-tank warfare, ...
tanks, the StuG was equipped with a high-velocity 7.5 cm StuK 40 L/43 main gun (spring 1942) and in the autumn of 1942 with the slightly longer 7.5 cm StuK 40 L/48 gun. These high-velocity guns were the same as those mounted on the
Panzer IV The IV (Pz.Kpfw. IV), commonly known as the Panzer IV, is 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 Panzer IV was the most numer ...
for anti-tank use but the heavy steel wall high-velocity shells contained much less explosive and had a lower blast effect for use against infantry or field fortifications. These versions were known as the ''7.5 cm Sturmgeschütz 40 Ausf.F'', ''Ausf. F/8'' and ''Ausf. G (Sd.Kfz.142/1)''. Beginning with the StuG III Ausf. G from December 1942, a 7.92 mm
MG34 The MG 34 (shortened from German: ''Maschinengewehr 34'', or "machine gun 34") is a German recoil-operated air-cooled general-purpose machine gun, first tested in 1929, introduced in 1934, and issued to units in 1936. It introduced an entirely n ...
machine gun could be mounted on a shield on top of the superstructure for added anti-infantry protection. Some of the F/8 models were retrofitted with a shield. An additional coaxial 7.92 mm MG34 started to appear in 1944 and became standard on all production during the same year. The vehicles of the ''Sturmgeschütz'' series were cheaper and faster to build than contemporary German
tank A tank is an armoured fighting vehicle intended as a primary offensive weapon in front-line ground combat. Tank designs are a balance of heavy firepower, strong armour, and battlefield mobility provided by tracks and a powerful engine; ...
s; at 82,500 RM, a StuG III Ausf G was cheaper than a
Panzer III The ''Panzerkampfwagen III (Pz.Kpfw. III)'', commonly known as the Panzer III, was a medium tank developed in the 1930s by Nazi Germany, Germany, and was used extensively in World War II. The official German ordnance designation was List of Sd.K ...
Ausf. M, which cost 103,163 RM. This was due to the omission of the turret, which greatly simplified manufacture and allowed the chassis to carry a larger gun.


Operational history

The ''Sturmgeschütz'' III-series of vehicles proved very successful and served on all fronts, from Russia to North Africa and Western Europe to Italy, as assault guns and tank destroyers. Because of their low silhouette, StuG IIIs were easy to camouflage and hide, and were difficult targets to destroy. By the end of the war 11,300 StuG IIIs and StuH 42s had been built.,Sturmgeschütz
wwiivehicles.com
but due to heavy losses, there were only 1,053 StuG IIIs and 277 StuH 42s remaining in German service by 10 April 1945. The StuG assault guns were cost-effective compared with the heavier German tanks such as the
Tiger I The Tiger I () was a Nazi Germany, German heavy tank of World War II that began operational duty in 1942 in North African Campaign, Africa and in the Soviet Union, usually in independent German heavy tank battalion, heavy tank battalions. It g ...
and the Panther, although as anti-tank guns they were best used defensively as the lack of a traversable turret and their generally thin armour was a severe disadvantage in the attack role. As the situation for the German military deteriorated further later in the war, more StuGs were built than tanks, particularly due to ease of production. In Italy, the Sturmgeschütz was highly valued by crews fighting Allied armour, but was dogged by mechanical unreliability; particularly the delicate final drive units. The small box on the track cover, which was normally fixed on the engine deck, contained the track tools. In 1943 and 1944, the
Finnish Army The Finnish Army ( , ) is the army, land forces branch of the Finnish Defence Forces. The Finnish Army is divided into six branches: infantry (which includes armoured units), field artillery, anti-aircraft artillery, Combat engineering, engineer ...
received 59 StuG III Ausf. Gs from Germany and used them against the Soviet Union. Thirty of the vehicles were received in 1943 and a further twenty-nine in 1944. The first batch from 1943 destroyed at least eighty-seven enemy tanks for a loss of only eight StuGs (some of which were destroyed by their crews to prevent enemy capture). The later batch from 1944 saw no real action. After the war, the StuGs were the main combat vehicles of the Finnish Army up until the early 1960s when they were phased out. These StuGs gained the nickname "Sturmi" in the Finnish military, which can be found in some plastic scale-model kits. One hundred StuG III Ausf. Gs were delivered to
Romania Romania is a country located at the crossroads of Central Europe, Central, Eastern Europe, Eastern and Southeast Europe. It borders Ukraine to the north and east, Hungary to the west, Serbia to the southwest, Bulgaria to the south, Moldova to ...
in the autumn of 1943. They were officially known as TAs (or TAs T3 to avoid confusion with TAs T4 ( Jagdpanzer IVs)) in their army's inventory. By February 1945, 13 were still in use with the 2nd Armoured Regiment. None of this initial batch survived the war. Thirty-one TAs were on the Romanian military's inventory in November 1947. Most of them were probably StuG III Ausf. Gs and a small number of Panzer IV/70 (V) (same as TAs T4). These TAs were supplied by the Red Army or were damaged units repaired by the Romanian Army. All German equipment was removed from service in 1950 and finally scrapped four years later due to the army's decision to use only Soviet armour. StuG IIIs were also exported to other nations friendly to Germany, including Bulgaria, Hungary, Italy, and Spain. Hungary fielded its StuG IIIs against Soviet forces as they invaded their country in end-1944 up until early 1945. Bulgaria also received several StuGs from Germany but almost none saw service against the Soviets, the country having ended the alliance with Germany by switching sides to the Allies before the Soviets invaded. Post-World War II, these were used for a short time before being turned into fixed gun emplacements on the Krali Marko Line on the border with neighbouring Turkey. StuG IIIs were also given to the pro-German Croatian
Ustaše Militia The Ustaše Militia () was the military branch of the Ustaše, established by the Fascism, fascist and Genocide of Serbs in the Independent State of Croatia, genocidal regime of Ante Pavelić in the Independent State of Croatia (NDH), an Axis pow ...
, most of which were captured in Yugoslavia by Tito's
Yugoslav partisans The Yugoslav Partisans,Serbo-Croatian, Macedonian language, Macedonian, and Slovene language, Slovene: , officially the National Liberation Army and Partisan Detachments of Yugoslavia sh-Latn-Cyrl, Narodnooslobodilačka vojska i partizanski odr ...
during and after the war, as did German-operated vehicles. These were used by the
Yugoslav People's Army The Yugoslav People's Army (JNA/; Macedonian language, Macedonian, Montenegrin language, Montenegrin and sr-Cyrl-Latn, Југословенска народна армија, Jugoslovenska narodna armija; Croatian language, Croatian and ; , J ...
until the 1950s when they were replaced by more modern combat vehicles. Spain received a small number (around 10) of StuG IIIs from Germany during World War II, later sold to Syria between 1950 and 1960. Italy received 12 StuG III Ausf.Gs previously owned by local German units in 1943. They were donated, along with 12 Panzer III Ausf.Ns, 12 Panzer IV Ausf.Gs and 24 8.8 cm Flak 37 complete with half-track tractors, to the Armored Division "M", an intended elite unit composed by
Blackshirts The Voluntary Militia for National Security (, MVSN), commonly called the Blackshirts (, CCNN, singular: ) or (singular: ), was originally the paramilitary wing of the National Fascist Party, known as the Squadrismo, and after 1923 an all-vo ...
. With the fall of the Fascist regime and the Italian Armistice all equipment given to them was recovered by the Germans and used against the Allies. After World War II, abandoned German StuG IIIs remained in many European nations Germany had occupied during the war years, such as Czechoslovakia, France, Norway and Yugoslavia. The
Soviet Union The Union of Soviet Socialist Republics. (USSR), commonly known as the Soviet Union, was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 until Dissolution of the Soviet ...
also captured hundreds of StuGs, most ending up being donated to
Syria Syria, officially the Syrian Arab Republic, is a country in West Asia located in the Eastern Mediterranean and the Levant. It borders the Mediterranean Sea to the west, Turkey to Syria–Turkey border, the north, Iraq to Iraq–Syria border, t ...
. An Italian 12.7 mm Breda-SAFAT machine gun taken from Syrian Fiat G.55 was mounted on the commander cupola with retrofitted anti-aircraft mount. Syria continued to use StuG IIIs along with other war surplus armoured fighting vehicles received from the USSR or Czechoslovakia (varying from long-barrelled Panzer IVs (late models) and
T-34-85 The T-34 is a Soviet medium tank from World War II. When introduced, its 76.2 mm (3 in) tank gun was more powerful than many of its contemporaries, and its 60-degree sloped armour provided good protection against Anti-tank warfare, ...
s) during the 1950s and up until the War over Water against Israel in the mid-1960s. By the time of the
Six-Day War The Six-Day War, also known as the June War, 1967 Arab–Israeli War or Third Arab–Israeli War, was fought between Israel and a coalition of Arab world, Arab states, primarily United Arab Republic, Egypt, Syria, and Jordan from 5 to 10June ...
in 1967, many of them had been either destroyed, stripped for spare parts, scrapped or emplaced on the
Golan Heights The Golan Heights, or simply the Golan, is a basaltic plateau at the southwest corner of Syria. It is bordered by the Yarmouk River in the south, the Sea of Galilee and Hula Valley in the west, the Anti-Lebanon mountains with Mount Hermon in t ...
as pillboxes. Some remained in service up to the
Yom Kippur War The Yom Kippur War, also known as the Ramadan War, the October War, the 1973 Arab–Israeli War, or the Fourth Arab–Israeli War, was fought from 6 to 25 October 1973 between Israel and a coalition of Arab world, Arab states led by Egypt and S ...
in 1973. None remain in service today. A few Syrian StuG IIIs ended up in Israeli hands and became war memorials or were simply left rusting away on former battlefields.


Variants

Production numbers were: * StuG III prototypes (1937, 5 produced on Panzer III Ausf. B chassis): by December 1937, two vehicles were in service with Panzer Regiment 1 in Erfurt. Vehicles had eight road wheels per side with wide tracks, 14.5 mm thick soft steel superstructure and the 7.5 cm StuK 37 L/24 gun. Although not suitable for combat, they were used for training purposes as late as 1941. *StuG III Ausf. A (Sd.Kfz. 142; January–May 1940, 30+6 produced by
Daimler-Benz Mercedes-Benz Group AG (formerly Daimler-Benz, DaimlerChrysler, and Daimler) is a Germany, German Multinational corporation, multinational Automotive industry, automotive company headquartered in Stuttgart, Baden-Württemberg, Germany. It is o ...
): first used in the
Battle of France The Battle of France (; 10 May – 25 June 1940), also known as the Western Campaign (), the French Campaign (, ) and the Fall of France, during the Second World War was the Nazi Germany, German invasion of the Low Countries (Belgium, Luxembour ...
, the StuG III Ausf. A used a modified 5./ZW chassis (Panzer III Ausf. F) with front armour strengthened to 50 mm. The last six vehicles were built on chassis diverted from Panzer III Ausf. G production. *StuG III Ausf. B: (Sd.Kfz 142; June 1940–May 1941, 300 produced by Alkett) Modified 7./ZW chassis (Panzer III Ausf. H), widened tracks (380 mm). Two rubber tires on each roadwheel were accordingly widened from 520 × 79 mm to 520 × 95 mm each. Both types of roadwheel were interchangeable. The troublesome 10-speed transmission was changed to a 6-speed one. The forwardmost return rollers were re-positioned further forward, reducing the vertical movements of the tracks before they were fed to the forward drive sprocket, and so reduced the chance of tracks being thrown. In the middle of production of the Ausf. B model, the original drive sprocket with eight round holes was changed to a new cast drive sprocket with six pie slice-shaped slots. This new drive wheel could take either 380 mm tracks or 360 mm wide tracks. 380 mm tracks were not exclusive to new drive wheels, as spacer rings could be added to the older sprockets. Vehicle number 90111 shows the older drive wheel with wider 380 mm tracks. *StuG III Ausf. C: (Sd.Kfz 142; April 1941, 50 produced) Gunner's forward view port above driver's visor was a
shot trap Shot may refer to: Arts, entertainment, and media *Shot (album), ''Shot'' (album), by The Jesus Lizard *''Shot, Illusion, New God'', an EP by Gruntruck *''Shot Rev 2.0'', a video album by The Sisters of Mercy *Shot (song), "Shot" (song), by The R ...
and thus eliminated; instead, superstructure top was given an opening for gunner's periscope. Idler wheel was redesigned. *StuG III Ausf. D: (Sd.Kfz 142; May–September 1941, 150 produced) Simply a contract extension on Ausf. C. On-board intercom installed, transmission hatch locks added, otherwise identical to Ausf. C. *StuG III Ausf. E: (Sd.Kfz 142; September 1941February 1942, 284 produced) Superstructure sides added extended rectangular armoured boxes for radio equipment. Increased space allowed room for six additional rounds of ammunition for the main gun (giving a maximum of 50) plus a machine gun. One
MG 34 The MG 34 (shortened from German: ''Maschinengewehr 34'', or "machine gun 34") is a German recoil-operated air-cooled general-purpose machine gun, first tested in 1929, introduced in 1934, and issued to units in 1936. It introduced an entirely ...
and seven drum-type magazines were carried in the right rear side of the fighting compartment to protect the vehicle from enemy infantry. Vehicle commanders were officially provided with SF14Z stereoscopic scissor periscopes. Stereoscopic scissor type periscopes for artillery spotters may have been used by vehicle commanders from the start. *StuG III Ausf. F: (Sd.Kfz 142/1; March–September 1942, 366 produced) The first real up-gunning of the StuG, this version uses the longer 7.5 cm StuK 40 L/43 gun. Firing armour-piercing Panzergranat-Patrone 39, the StuK 40 L/43 could penetrate 91 mm of armour inclined 30 degrees from vertical at 500 m, 82 mm at 1,000 m, 72 mm at 1,500 m, 63 mm at 2,000 m, allowing the Ausf. F to engage most Soviet armoured vehicles at normal combat ranges. This change marked the StuG as being more of a tank destroyer than an infantry support vehicle. A ventilation port and exhaust fan was added to the top of the fighting compartment to evacuate fumes from spent shells, to enable the firing of continuous shots. Additional 30 mm armour plates were welded to the 50 mm frontal armour from June 1942, making the frontal armour 80 mm thick. From June 1942, Ausf. F were mounted with approximately 13 inch (334 mm to be exact) longer 7,5 cm StuK 40 L/48 gun. Firing above mentioned ammunition, longer L/48 could penetrate 96 mm, 85 mm, 74 mm, 64 mm respectively (30 degrees from vertical). *StuG III Ausf. F/8: (Sd.Kfz 142/1; September–December 1942, 250 produced) Introduction of an improved hull design similar to that used for the Panzer III Ausf. J / L with increased rear armour. This was 8th version of the Panzer III hull, thus the designation "F/8". This hull has towing hook holes extending from side walls. From October 1942, 30 mm thick plates of additional armour were bolted (previously welded) on to speed up the production line. From F/8, the 7.5 cm StuK 40 L/48 gun was standard until the last of the Ausf. G. Due to the lack of double baffle
muzzle brake A muzzle brake or recoil compensator is a device connected to, or a feature integral (ported barrel) to the construction of, the muzzle or barrel of a firearm or cannon that is intended to redirect a portion of propellant gases to counter re ...
s, a few L/48 guns mounted on F/8s were fitted with the single baffle ball type muzzle brake used on the Panzer IV Ausf. F2/G. *StuG III Ausf. G (Sd.Kfz. 142/1; December 1942April 1945, ~8,423 produced, 142 built on Panzer III Ausf. M chassis, 173 converted from Panzer III): The final and by far the most common of the StuG series. Upper superstructure was widened: welded boxes on either sides were abandoned. This new superstructure design increased its height to 2160 mm. The back wall of the fighting compartment was straightened, and the ventilation fan on top of the superstructure was relocated to the back of the fighting compartment. From March 1943, the driver's periscope was abandoned. In February 1943, Alkett was joined by MIAG as a second manufacturer. From May 1943, side hull spaced armour plates ''(Schürzen)'' were fitted to G models; these were primarily intended for protection against Russian anti-tank rifles, but were also useful against hollow-charge ammunition. Side plates were retrofitted to some Ausf. F/8 models, as they were to be fitted to all front line StuGs and other tanks by June 1943 in preparation for the
battle of Kursk The Battle of Kursk, also called the Battle of the Kursk Salient, was a major World War II Eastern Front battle between the forces of Nazi Germany and the Soviet Union near Kursk in southwestern Russia during the summer of 1943, resulting in ...
. Mountings for the ''Schürzen'' proved to be inadequate, as many were lost in the field. From March 1944, an improved mounting was introduced; as a result, side skirts are seen more often with late model Ausf G. From May 1943, 80 mm thick plates were used for frontal armour instead of two plates of 50 mm + 30 mm. However, a backlog of StuGs with completed 50 mm armour existed. For those, a 30 mm additional armour plate still had to be welded or bolted on until October 1943. A rotating cupola with periscopes was added for the Ausf G.'s commander. However, from September 1943, the lack of ball bearings (resulting from USAAF bombing of Schweinfurt) forced cupolas to be welded on. Ball bearings were once again installed from August 1944. Shot deflectors for the cupolas were first installed from October 1943 from one factory, to be installed on all StuGs from February 1944. Some vehicles without shot deflectors carried several track pieces wired around the cupola for added protection. From December 1942, a square machine gun shield for the loader was installed, allowing an MG34 to be factory installed on a StuG for the first time. When stowed this shield folded back, partially overlapping the front half of the loader's hatch cover. A curved protrusion welded to the backside of the shield pushed the shield forward as the front half of the loader's hatch cover was opened and guided the hatch cover to naturally engage a latch point on the shield thus, supporting the shield in its deployed position without exposing the loader to hostile forward fire. F/8 models had machine gun shields retro-fitted from early 1943. The loader's machine gun shield was later replaced by rotating machine gun mount that could be operated by the loader inside the vehicle sighting through a periscope. In April 1944, 27 of them were being field tested on the Eastern front. Favourable reports led to installation of these "remote" machine gun mounts from the summer of 1944. From October 1943, G versions were fitted with the ''Topfblende'' pot mantlet (often called ''Saukopf'' "Pig's head") gun mantlet without a coaxial mount. This cast mantlet, which had a sloped and rounded shape, was more effective at deflecting shots than the original boxy ''Kastenblende'' mantlet that had armour varying in thickness from 45 mm to 50 mm. The lack of large castings meant that the trapezoid-shape boxy mantlet was also produced until the very end. Topfblende were fitted almost exclusively to Alkett-produced vehicles. A coaxial machine gun was first added to boxy mantlets, from June 1944, and then to cast Topfblende, from October 1944, in the middle of "Topfblende" mantlet production. With the addition of this coaxial machine gun, all StuGs carried two MG 34 machine guns from autumn of 1944. Some previously completed StuGs with a boxy mantlet had a coaxial machine gun hole drilled to retrofit a coaxial machine gun; however, Topfblende produced from November 1943 to October 1944 without a machine gun opening could not be tampered with. Also from November 1943 onwards, all-metal return rollers of a few different types were used due to lack of rubber supply.
Zimmerit ''Zimmerit'' was a paste-like coating used on mid- and late-war German armored fighting vehicles during World War II. It was used to produce a hard layer covering the metal armor of the vehicle, providing enough separation that magnetically ...
anti-magnetic coating to protect vehicles from magnetic mines was applied starting in September (MIAG facility) or November (Alkett facility) 1943 and ending in September 1944.


Further variants

In 1942, a variant of the StuG Ausf. F was designed with a true
howitzer The howitzer () is an artillery weapon that falls between a cannon (or field gun) and a mortar. It is capable of both low angle fire like a field gun and high angle fire like a mortar, given the distinction between low and high angle fire break ...
instead of the 7.5 cm StuK 40 L/43 cannon. These new vehicles, designated StuH 42 (''Sturmhaubitze 42'', Sd.Kfz 142/2), were designed to provide infantry support with the increased number of StuG III Ausf. F/8s and Ausf. Gs being used in the anti-tank role. The StuH 42 mounted a variant of the 10.5 cm leFH 18 howitzer, modified to be electrically fired and fitted with a
muzzle brake A muzzle brake or recoil compensator is a device connected to, or a feature integral (ported barrel) to the construction of, the muzzle or barrel of a firearm or cannon that is intended to redirect a portion of propellant gases to counter re ...
, called the 10.5 cm Sturmhaubitze 42 L/28 (10.5cm StuH 42 L/28). Production models were built on StuG III Ausf. G chassis. The muzzle brake was often omitted due to the scarcity of resources later in the war. Alkett produced 1,299 StuH 42s from March 1943 to 1945, the initial 12 vehicles were built on repaired StuG III Ausf. Fs and F/8s from the autumn of 1942 to January 1943. In 1943, 10 StuG IIIs were converted to the StuG III (Flamm) configuration by replacing the main gun with a Schwade
flamethrower A flamethrower is a ranged incendiary device designed to project a controllable jet of fire. First deployed by the Byzantine Empire in the 7th century AD, flamethrowers saw use in modern times during World War I, and more widely in World W ...
. These chassis were all refurbished at the depot level and were a variety of pre-Ausf. F models. There are no reports to indicate that any of these were used in combat and all were returned to Ausf. G standard at depot level by 1944. In late 1941, the StuG chassis was selected to carry the 15 cm sIG 33 heavy infantry gun. These vehicles were known as Sturm-Infanteriegeschütz 33B. Twenty-four were rebuilt on older StuG III chassis, of which twelve vehicles saw combat in the
Battle of Stalingrad The Battle of Stalingrad ; see . rus, links=on, Сталинградская битва, r=Stalingradskaya bitva, p=stəlʲɪnˈɡratskəjə ˈbʲitvə. (17 July 19422 February 1943) was a major battle on the Eastern Front of World War II, ...
, where they were destroyed or captured. The remaining 12 vehicles were assigned to the 23rd Panzer Division. Due to the dwindling supply of rubber, rubber-saving road wheels were tested during 8–14 November 1942, but did not go into production. Bombing raids on the Alkett factory resulted in a significant drop in StuG III production in November 1943. To make up for this loss of production,
Krupp Friedrich Krupp AG Hoesch-Krupp (formerly Fried. Krupp AG and Friedrich Krupp GmbH), trade name, trading as Krupp, was the largest company in Europe at the beginning of the 20th century as well as Germany's premier weapons manufacturer dur ...
displayed a substitution StuG on a Panzer IV chassis to Hitler on 16–17 December 1943. From January 1944 onwards, the StuG IV, based on the
Panzer IV The IV (Pz.Kpfw. IV), commonly known as the Panzer IV, is 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 Panzer IV was the most numer ...
chassis and with a slightly modified StuG III superstructure, entered production. Field modifications were made to increase the vehicle's survivability, resulting in diversity to already numerous variants; cement plastered on front superstructure, older Ausf.C/D retrofitted with a KwK 40 L/48 gun, Ausf.G mounting the Panzer IV cupola, a coaxial MG34 through a hole drilled on a boxy mantlet, etc. The Soviet SU-76i self-propelled gun was based on captured StuG IIIs and
Panzer III The ''Panzerkampfwagen III (Pz.Kpfw. III)'', commonly known as the Panzer III, was a medium tank developed in the 1930s by Nazi Germany, Germany, and was used extensively in World War II. The official German ordnance designation was List of Sd.K ...
s. In total, Factory #37 in Sverdlovsk manufactured 181 SU-76i, plus 20 commander SU-76is for
Red Army The Workers' and Peasants' Red Army, often shortened to the Red Army, was the army and air force of the Russian Soviet Republic and, from 1922, the Soviet Union. The army was established in January 1918 by a decree of the Council of People ...
service by adding an enclosed superstructure and the 76.2 mm S-1 tank gun. Approximately 10,000 StuG IIIs of various types were produced from 1940 to 1945 by Alkett (~7,500) and from 1943 to 1945 by MIAG (2,586). From April to July 1944, some 173 Panzer IIIs were converted into StuG III Ausf. Gs. The 1,299 StuH 42z and the 12 conversions from the StuG III were solely built by Alkett.


Gallery

File:Bundesarchiv B 145 Bild-F016202-23A, Russland, Sturmgeschütz III vor Ortschaft.jpg, StuG III Ausf.B in the Soviet Union, 1941. File:Bundesarchiv Bild 183-B28822, Russland, Kampf um Stalingrad, Infanterie.jpg,
Battle of Stalingrad The Battle of Stalingrad ; see . rus, links=on, Сталинградская битва, r=Stalingradskaya bitva, p=stəlʲɪnˈɡratskəjə ˈbʲitvə. (17 July 19422 February 1943) was a major battle on the Eastern Front of World War II, ...
: Infantry and a supporting StuG assault gun advance towards the city center. File:StuG III destroyed Normandy.jpg, A StuG III Ausf.G destroyed in
Normandy Normandy (; or ) is a geographical and cultural region in northwestern Europe, roughly coextensive with the historical Duchy of Normandy. Normandy comprises Normandy (administrative region), mainland Normandy (a part of France) and insular N ...
by a catastrophic internal explosion, 1944. File:StuG III Ausf. G.jpg, Finnish StuG III Ausf. G (June, 1944). File:Elements of the Sturmgeschütz-Brigade 303.jpg, German StuG III Ausf.F/8 in Finland showing concrete armour added to superstructure. File:StuG III in the Canadian War Museum.jpg, StuG III Ausf.G - Canadian War Museum. File:Stugbb.jpg, Late production Stug III Ausf. G, Museum of Slovak National Uprising, Slovakia File:StugIII Tank.jpg, Stug III Sd Kfz 142/1 at the Tank Museum of Bovington, Dorset, UK File:WarsawUprising - StuG III Ausf. G.jpg, A StuG III in a photograph from the
Warsaw Uprising The Warsaw Uprising (; ), sometimes referred to as the August Uprising (), or the Battle of Warsaw, was a major World War II operation by the Polish resistance movement in World War II, Polish underground resistance to liberate Warsaw from ...


Operators

* - Main operator * - Several hundred supplied by Germany and (postwar) the USSR, referred to as ''TAs'' or ''TAs T-3''. All scrapped by 1954. * - Several supplied by Germany and (postwar) the USSR and all either scrapped or turned into gun emplacements bordering Turkey * - 30 StuGs, nicknamed "Sturmi", were bought in 1943 and another 29 bought in 1944, all directly from Germany. They were used during the Continuation War against the Soviet Union in 1944. * - Several captured after the war and either scrapped or sold to Syria. One vehicle is on display in
Banská Bystrica Banská Bystrica (, also known by other #Etymology, alternative names) is a city in central Slovakia, located on the Hron River in a long and wide valley encircled by the mountain chains of the Low Tatras, the Greater Fatra, Veľká Fatra, and t ...
,
Slovakia Slovakia, officially the Slovak Republic, is a landlocked country in Central Europe. It is bordered by Poland to the north, Ukraine to the east, Hungary to the south, Austria to the west, and the Czech Republic to the northwest. Slovakia's m ...
. * - Several captured after the war and briefly operated before being scrapped or sold to Syria * - 50 given by Germany in 1944 *
Kingdom of Italy The Kingdom of Italy (, ) was a unitary state that existed from 17 March 1861, when Victor Emmanuel II of Kingdom of Sardinia, Sardinia was proclamation of the Kingdom of Italy, proclaimed King of Italy, until 10 June 1946, when the monarchy wa ...
- 12 received from Germany in 1943 and assigned to 1st Blackshirt Armoured Division "M" * - Surrendered German military equipment was used from 1947 to 1951 * - In 1943, Franco's Spain received 10 units and used them until 1954. One Ausf. G remains in drivable condition in the Museo Histórico Militar de
Cartagena, Spain Cartagena () is a Spanish city belonging to the Region of Murcia. As of January 2018, it has a population of 218,943 inhabitants. The city lies in a natural harbor of the Mediterranean coastline of the southeast of the Iberian Peninsula. Cartage ...
* - one Ausf. D variant received from Denmark in late 1945 and used for trials and testing of anti-tank mines, and one Ausf. G used for spare parts * - At least 30 obtained from various states including the Soviet Union, France, Spain and Czechoslovakia during the 1950s * - Several hundred captured vehicles used for testing and modifications, including the SU-76i assault gun and SG-122 self-propelled howitzer, with some others (very few) fielded for frontline use * - Many captured from Germany and its local allies in the Balkans and used up until the 1950s


Surviving vehicles


In working order

* Jon Phillips Private Armor Collection. StuG III Ausf. D. In working order as of 1 July 2016. * WJHJ Collection, Belgium. StuG III Ausf. G. in full working order with original HL120 Maybach engine and drivetrain. *
Parola Tank Museum Parola Tank Museum, officially Armoured Vehicle Museum (Finnish language, Finnish ''Panssarimuseo'', Swedish language, Swedish ''Pansarmuséet'') is a Museum#military museum, military museum located 110 kilometres north of Helsinki in Parola (Hat ...
, Finland. One StuG III Ausf. G. in museum area and one in storage. * Histórico Militar de Cartagena, Spain. One StuG III Ausf. G in museum area. * Bastogne Barracks, Belgium. One StuG III Ausf. F/8 * American Heritage Museum, USA. One StuG III Ausf. G * Schweizerisches Militärmuseum Full, Switzerland, 1 Ausf. G. * Deutsches Panzermuseum, Munster, Germany. One Ausf. G * The Weald Foundation, UK. Two Ausf. G. One was built by MIAG. *WTD 41, Germany. One Ausf. G. * The Artillery, Engineer and Signals Museum of Finland, One Ausf. G. *
Patriot Park Patriot Park () is a theme park in Kubinka, Russia, that is themed around equipment of the Russian military and the Soviet Union's victory in World War II. The park, which officially opened in 2016, is designed around a military theme, and inc ...
, Kubinka, Russia. One StuH 42. * The Australian Armour and Artillery Museum One Ausf G


Intact, but not in working order

*
Musée des Blindés The ''Musée des Blindés'' ("Museum of Armoured Vehicles") or ''Musée Général Estienne'' is a tank museum located in Saumur in the Loire Valley of France. It is now one of the world's largest tank museums. It began in 1977 under the leade ...
, Saumur France. Two StuG IIIs, a StuG III Ausf. G and a StuH 42. * The Australian Armour and Artillery Museum Two StuG IIIs - Ausf A (the only remaining Ausf A), Ausf G, and Ausf. F. And as of March-2024 Ausf. B *
Kubinka Tank Museum The Kubinka Tank Museum (Центральный музей бронетанкового вооружения и техники - Tsentral'nyy Muzey Bronetankovogo Vooruzheniya I Tekhniki -Central Museum of Armored Arms and Technology) is a larg ...
, Russia. Ausf.G *
Yad La-Shiryon Yad La-Shiryon (officially: The Armored Corps Memorial Site and Museum at Latrun; ) is Israel's official memorial site for fallen soldiers from the Israeli Armor Corps, armored corps, as well as one of the most diverse tank museums in the world. ...
Tank Museum, Israel. One StuG III Ausf. G. * Belgrade Military Museum, Serbia. One StuG III Ausf. F/8. * The Wheatcroft Collection Four Ausf. G (2 being restored). *
The Tank Museum The Tank Museum (previously the Bovington Tank Museum) is a collection of armoured fighting vehicles at Bovington Camp in Dorset, South West England. It is about north of the village of Wool and west of the major port of Poole. The collectio ...
, Bovington Camp, UK. Two Ausf. G, one is a Finnish StuG III with
Zimmerit ''Zimmerit'' was a paste-like coating used on mid- and late-war German armored fighting vehicles during World War II. It was used to produce a hard layer covering the metal armor of the vehicle, providing enough separation that magnetically ...
, concrete armour, and logs for unditching. *
Parola Tank Museum Parola Tank Museum, officially Armoured Vehicle Museum (Finnish language, Finnish ''Panssarimuseo'', Swedish language, Swedish ''Pansarmuséet'') is a Museum#military museum, military museum located 110 kilometres north of Helsinki in Parola (Hat ...
, Finland. Two StuG III Ausf. G in museum area and three in storage. One cut open so public can see interior. Also 16 in various locations around Finland. *
Museum of the Great Patriotic War, Moscow The Museum of the Great Patriotic War, also known as the Victory Museum (), is a history museum located in Moscow at Poklonnaya Hill, Poklonnaya Gora. The building was designed by architect Anatoly Polyansky. Work on the museum began on March 3, ...
, Russia. Ausf.G *Museum of Slovak National Uprising,
Banská Bystrica Banská Bystrica (, also known by other #Etymology, alternative names) is a city in central Slovakia, located on the Hron River in a long and wide valley encircled by the mountain chains of the Low Tatras, the Greater Fatra, Veľká Fatra, and t ...
,
Slovakia Slovakia, officially the Slovak Republic, is a landlocked country in Central Europe. It is bordered by Poland to the north, Ukraine to the east, Hungary to the south, Austria to the west, and the Czech Republic to the northwest. Slovakia's m ...
. Stug III Ausf. G, late production variant. * Arsenalen Tank Museum, Strängnäs, Sweden. One StuG III Ausf. D. * Bundeswehr Military History Museum (''Militärhistorisches Museum der Bundeswehr''), Dresden, Germany. One StuG III Ausf. G. * National Museum of Military History, Sofia, Bulgaria. Two Ausf. G * Parque y Centro de Mantenimiento de Sistemas Acorazados (PCMASA) nº 2 Segovia, Spain, 1 Ausf. G * Brigada de Infantería Acorazada "Guadarrama" XII (BRIAC XII), Spain, 1 Ausf. G. * Brigada de Caballería “CASTILLEJOS II”, Spain, 1 Ausf. G. *Estonian Military Museum, Estonia, Tallinn. StuG III Ausf. G. * Overloon War Museum, Overloon, Netherlands. One StuG III Ausf. G. * Memorial to the Heroes of Volokolamsk Who Died During the Second World War, Moscow Oblast, Russia. One Ausf. D. *
Patriot Park Patriot Park () is a theme park in Kubinka, Russia, that is themed around equipment of the Russian military and the Soviet Union's victory in World War II. The park, which officially opened in 2016, is designed around a military theme, and inc ...
, Kubinka, Russia. One Ausf. F/8 and Two Ausf. G (One is a wreck). * Forsvarsmuseet Oslo Storage, Trandum, Norway. One Ausf. G. * Steve Lamonby Collection, UK. One Ausf. G. * Tey Vehicle Restorations, UK. One Ausf. G. *WTD 91, Germany. One Ausf. G. * Motor Technica Museum, Bad Oeynhausen, Germany. One Ausf. E. * Auto + Technik Museum, Sinsheim, Germany. One Ausf. G. * Artillerie Schule, Idar Obenstein, Germany. One Ausf. G. * War Museum for Peace "Diego de Henriquez", Trieste, Italy. One Ausf. G. * Castiglion Fiorentino, Italy. One Ausf. G. * MUMA. Museum of Tanks, Madrid, Spain. One Ausf. G. * General Military Academy, Zaragoza, Spain. One Ausf. G. * Finnish Armoured Brigade's Garrison, Parola, Finland. Three Ausf G. * Military Museum of Manège, Helsinki, Finland. One Ausf. G. * Savon Prikaati Garrison, Mikkeli, Finland. One Ausf. G. * Hiukkavaara Garrison, Oulu, Finland. One Ausf. G. * Maasotakoulu, Lappeenranta, Finland. One Ausf. G. *
Hamina Hamina (; , , Sweden ) is a List of cities in Finland, town and a Municipalities of Finland, municipality of Finland. It is located approximately east of the country's capital Helsinki, in the Kymenlaakso Regions of Finland, region, and formerly ...
, Finland. One Ausf. G. * Kuljetusvarikko, Tampere, Finland. One Ausf. G. * Karelia Brigade, Vekaranjarvi, Finland. One Ausf. G. * Panssarivarikko, Ilveskallio, Finland. One Ausf. G. * Säkylä Winter War and Continuation War Museum, Finland. One Ausf. G. * Sovintovaara, Finland. One Ausf. G. * SdKfz Team Poland, One Ausf. G. * Stalin Line Museum, Minsk Region, Belarus. One Ausf. G superstructure and main gun. * Museum Of Combat Glory, Yambol, Bulgaria. One Ausf. G. * Khmeimim Air Base, Near Lattaquie, Syria. One Ausf. G. * The Royal Tank Museum, Jordan. One Ausf. G. * Muzey Tekhniki Vadima Zadorozhnogo, Moscow Oblast, Russia. Three Ausf. G. * Museum Of Military Equipment "Battle Glory Of The Urals", Sverdlovsk Oblast, Russia. One Ausf. G. *
Saratov Saratov ( , ; , ) is the largest types of inhabited localities in Russia, city and administrative center of Saratov Oblast, Russia, and a major port on the Volga River. Saratov had a population of 901,361, making it the List of cities and tow ...
, Saratov Oblast, Russia. One Ausf. G. * U.S. Army Armor & Cavalry Collection, Georgia, USA. Two Ausf. G. * Patton Museum Of Cavalry And Armor, Kentucky, USA. One Ausf. G.


StuH 42s

*
Musée Des Blindés The ''Musée des Blindés'' ("Museum of Armoured Vehicles") or ''Musée Général Estienne'' is a tank museum located in Saumur in the Loire Valley of France. It is now one of the world's largest tank museums. It began in 1977 under the leade ...
, Saumur, France. * Australian Armour And Artillery Museum, Cairns, Australia. *U.S. Army Armor & Cavalry Collection, Georgia, USA. Two late production versions. * US Army Artillery Museum, Oklahoma, USA. * White Eagle Museum, Skarżysko-Kamienna, Poland. One wreck.


See also

*
Sturmgeschütz IV The IV (StuG IV) (Sd.Kfz. 167) was a German assault gun variant of the Panzer IV used in the latter part of the Second World War. It was identical in role and concept to the highly successful StuG III assault gun variant of the Panzer III. Bo ...
*''
Panzerjäger ''Panzerjäger'' (German: literally "armor hunter", more broadly "anti-tank") is a term used for an anti-tank vehicle (self-propelled anti-tank gun), as well as anti-tank units. The term was first used in the Wehrmacht (German armed forces, 19 ...
'' *
Tank destroyer A tank destroyer, tank hunter or tank killer is a type of armoured fighting vehicle, predominantly intended for anti-tank duties. They are typically armed with a direct fire anti-tank gun, artillery gun, also known as a self-propelled anti-ta ...


Vehicles of comparable role, performance and era

*American M10 GMC *German
Hetzer The 38 (Sd.Kfz. 138/2), originally the 38(t), known mostly post-war as , was a German light tank destroyer of the Second World War based on a modified Czechoslovakian Panzer 38(t) chassis. German armoured forces in World War II created a v ...
, and Jagdpanzer IV *Italian Semovente da 75/34 and Semovente da 75/46 *Romanian Mareșal *Soviet SU-85


References


Sources

* *Walter J. Spielberger. ''Sturmgeschütz & Its variants'' -
Schiffer Publishing Schiffer Publishing Ltd. (also known for its imprints Schiffer, Schiffer Craft, Schiffer Military History, Schiffer Kids, REDFeather MBS, Cornell Maritime Press, Tidewater Publishers, Thrums Books, and Geared Up Publications) is a family-owned p ...
- * * *


External links


Sturmgeschutz III
Photos of the Sturmgeschutz III at the Canada War Museum in Ottawa, Canada

*OnWar model specifications (via Wayback machine)


StuG III Ausf.F/8 in Kubinka tank museum
(via Wayback machine) {{DEFAULTSORT:Sturmgeschutz Iii Self-propelled anti-tank gun World War II assault guns World War II tank destroyers of Germany Military vehicles introduced from 1940 to 1944 Tanks introduced in 1940