Samokhodnaya Ustanovka 100) was a Soviet tank destroyer
armed with a 100 mm anti-tank gun in a casemate superstructure.
It was used extensively during the last year of
World War II
World War II and saw
service for many years afterwards with the armies of Soviet allies
around the world.
2 Service history
3.1 Former Operators
4 See also
6 External links
SU-85 was developed from the chassis of the
T-34 tank replacing
the turret with a larger, fixed superstructure that allowed a larger
gun to be fitted: the 85 mm D-5 gun, providing dramatically
upgraded firepower compared to the T-34's 76.2 mm models.
Introduced to service in 1943, the
SU-85 was quickly rendered obsolete
as a new tank design featured the same gun on the T-34-85.
This prompted the design of a more advanced turretless tank destroyer
with an even more powerful cannon. Development was conducted under
supervision of L. I. Gorlitskiy, chief designer of all medium Soviet
self-propelled guns. The work started in February 1944 and the first
prototype of the SU-100, "Object 138", was delivered in March. After
intensive testing with different models of 100 mm gun Soviet
engineers approved the D-10S gun for mass production. This gun was
developed in Constructors Bureau of Artillery Factory No. 9 under the
guidance of F. F. Petrov. After the Second World War this gun was
T-55 tanks; these vehicles and their derivatives
were in service forty years after initial development.
It was built at the UZTM (Russian abbreviature УЗТМ for
Уральский Завод Тяжелого
Машиностроения – Ural Heavy Machinery Factory, also
called Uralmash) in Yekaterinburg. The
SU-100 quickly proved itself to
be able to penetrate around 125 mm (4.9 in) of vertical
armor from a range of 2,000 m (1.2 mi) and the sloped
80 mm (3.1 in) front armor of the German Panther from
1,500 m (0.93 mi).
The hull of the
SU-100 had major improvements over the SU-85; the
thickness of the front armour was increased from 45 to 75 mm (1.8
to 3.0 in), and the commander's workplace was made in a small
sponson on the right side of the hull; combined with the commander's
cupola this improved the commander's effectiveness. Its German
Jagdpanzer-family counterparts — the
Jagdtiger, by comparison, lacked this key piece of observational
equipment. For better ventilation two ventilator units were installed,
instead of only one as in the SU-85. Mass production began in
Captured SU-100, Batey Ha-Osef Museum, Israel.
SU-100 saw extensive service during the last year of the war. It
was used en masse in
Hungary in March 1945, when Soviet forces
defeated the German
Operation Frühlingserwachen offensive at Lake
Balaton. By July 1945, 2,335 SU-100s had been built.
The vehicle remained in service with the
Red Army well after the war;
production continued in the
Soviet Union until 1947 and into the 1950s
in Czechoslovakia. It was withdrawn from Soviet service in 1957 but
many vehicles were transferred to reserve stocks. Some exist to this
day in the Russian Army holding facilities.
Warsaw Pact countries also used the SU-100, as did Soviet allies
such as Egypt,
Angola and Cuba. A few
SU-100 were delivered to
Yugoslavia after the war, under the designation M-44. The SU-100
saw service in the fighting that accompanied the 1956 Suez Crisis, in
which the Egyptians used SU-100s against Israel's
M4 Sherman tanks.
The vehicle was also utilized in the 1967
Six-Day War and the 1973 Yom
Kippur War. It was modified slightly to adapt it to the sandy
conditions of the Middle East, thus creating the SU-100M
variant. Exported SU-100s continued in service until
the 1970s, and in some countries, even later. Yugoslavs used them
during the civil war; however, due to lack of spare parts they were
quickly retired, despite their satisfactory performance. The SU-100
remains in use by the
Vietnam People's Army
Vietnam People's Army and the Korean People's
Army Ground Force.
SU-100s entered service with the
People's Liberation Army
People's Liberation Army (PLA) of
China after 1 December 1950 when Soviet forces left Dalian. The
Dalian were sold to China, including 99 SU-100s, 18 IS-2
heavy tanks, and 224 T-34s, with which PLA formed its 1st Mechanised
In April 2015, a
SU-100 self-propelled gun was photographed being used
Yemen as part of the ongoing conflict.
Video evidence uploaded to YouTube in November 2016 showed an apparent
Su-100 being knocked out by an anti-tank guided missile in Yemen.
SU-100 at the Museum of the Great Patriotic War, Kiev, Ukraine
Algeria: 50 in reserve.
North Korea: 100
Morocco: 25; 8 operational.
Romania: 47 in reserve as of 2016.
Albania: Retired 
Angola: 40; all destroyed in the
Angolan Civil War
Angolan Civil War or
decommissioned by the late 1980s.
People's Republic of China: 300
East Germany: 50
North Yemen: 50
Poland: 25 or 26. Withdrawn from service in late 1960s. 
List of Soviet tanks
^ a b c d e Higgins, David R. (2014).
Jagdpanther vs SU-100. Eastern
Front 1945. Osprey Publishing.
^ Lovac tenkova
SU-100 Archived 2 February 2012 at the Wayback
Machine.. Members.multimania.co.uk. Retrieved on 2012-04-14.
"WWII era Soviet armor engaged in
^ a b c Cordesman, Anthony (October 2016). After The Storm: The
Changing Military Balance in the Middle East. London: Bloomsbury
Publishing. pp. 112–124, 701.
^ Nerguizian, Aram; Cordesman, Anthony (2009). The North African
Military Balance: Force Developments in the Maghreb. Washington DC:
Center for Strategic and International Studies Press.
pp. 44–46. ISBN 978-089206-552-3.
^ a b c d e f g h i j k l m n o "Trade Registers".
Armstrade.sipri.org. Retrieved 2013-06-20.
^ "United Nations Register of Conventional Arms: Report of the
Secretary-General" (PDF). New York: United Nations. 14 July 2016.
Archived from the original (PDF) on 4 October 2016. Retrieved 4
^ М. Барятинский. Самоходные установки
на базе Т-34. p. 29.
^ The oral history of forgotten wars
^ "Soviet Ground Force Weapons And Armored Vehicles" (PDF). Langley:
Central Intelligence Agency. August 1969. Archived from the original
(PDF) on 10 March 2017. Retrieved 20 May 2017.
^ "Central Intelligence Bulletin" (PDF). Langley: Central Intelligence
Agency. 3 January 1963. Archived from the original (PDF) on 24
February 2017. Retrieved 20 May 2017.
Wikimedia Commons has media related to SU-100.
Tank Destroyer at Battlefield.ru
SU-100 at WWIIvehicles.com
SU-100 data at OnWar.com
Soviet armoured fighting vehicles of World War II
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Experimental and improvised vehicles
A-40 flying tank
List of armoured fighting vehicles of World War II
Soviet armored fighting vehicle production d