The SU-100P (Russian: СУ-100П,

GABTU Main Automotive-Armoured Directorate of the Ministry of Defence of the Russian Federation (russian: Главное автобронетанковое управление МО РФ, translit=Glavnoye Avtobronetankovoye Upravleniye MO RF, abbr. GABT ...

index "Object 105") is a Soviet experimental 100-mm self-propelled howitzer, and is designed by OKB-3 of the heavy machine construction division of

Uralmash Uralmash is a heavy machine production business of the Russian engineering corporation OMZ. Its facility is located in Yekaterinburg, Russia, and it is reported to employ around 16,500 people. The surrounding residential area where workers live ...

. The main designer of the SU-100P is

Lev Gorlitsky Lev Izrailevich Gorlitsky (russian: Лев Израилевич Горлицкий) (3 March 1906 - 2 November 2003) was a Jewish Soviet weapons designer. Under the guidance of Gorlitsky special artillery pieces were designed to be mounted on T-34 s ...

. The SU-100P was intended to suppress and destroy enemy firing positions, engage enemy armored vehicles, as well as

area denial An area denial weapon is a defensive device used to prevent an adversary from occupying or traversing an area of land, sea or air. The specific method used does not have to be totally effective in preventing passage (and sometimes is not) as lo ...

, in addition to conducting

counter-battery Counter-battery fire (sometimes called counter-fire) is a battlefield tactic employed to defeat the enemy's indirect fire elements (multiple rocket launchers, artillery and mortars), including their target acquisition, as well as their command a ...

tasks. It was intended to be the main competitor of the

Object 416 The Object 416 (Russian: Объект 416) is a Soviet prototype self-propelled artillery. It never went beyond prototype stage. It was intended to be a low profile tank destroyer. History Object 416 was an odd experimental Soviet medium tank co ...

History

After the

Second World War World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...

in 1945, the

USSR The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen nationa ...

started to make plans for a new anti-tank and assault gun to defeat enemy armored vehicles with direct fire. At that time,

Europe Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a Continent#Subcontinents, subcontinent of Eurasia ...

and the

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...

were developing

artillery Artillery is a class of heavy military ranged weapons that launch munitions far beyond the range and power of infantry firearms. Early artillery development focused on the ability to breach defensive walls and fortifications during siege ...

that are able to fire from closed positions. Gradually, these artillery began to replace the towed guns in their roles. The importance of self-propelled guns became apparent in local conflicts. Despite the artillery used by the USSR then were equipped with the necessary sighting adaptations for firing from closed positions, the maximum barrel elevation of these artillery were at a maximum of only 15-20 degrees. This significantly decrease the performance of self-propelled artillery, especially when compared with the towed guns. Utilizing experience gained during the Eastern Front,

OKB-3 Bratukhin, or OKB-3, was a Soviet aircraft design bureau created in 1940 from within TsAGI to develop helicopters. Headed by Ivan Pavlovich Bratukhin, the bureau built several experimental helicopters over the next decade. Each model had the same ba ...

under L. I. Gorlitsky prepared two projects for the new artillery. After Decree No. 2252-935 of the USSR was issued on 22 June 1948, OKB-3 commenced the designing of the SU-100P in compliance with the decree. The designing of the SU-100P was mainly handled by OKB-3, while the gun, the D-50/D-10 was developed separately by OKB-9. After development of the prototype, the SU-100P, together with the SU-152G, underwent factory testing during the fall of 1948. The prototype had a number of problems, unreliability of the lifting mechanism and insufficient stability of self-propelled guns when firing.''А.В. Карпенко'', ТанкоМастер и Военно-технический сборник «Бастион». Совместный выпуск, стр. 31 In October 1949, the SU-100P, together with the SU-152G and the SU-152P took part in state trials, which revealed flaws in the

chassis A chassis (, ; plural ''chassis'' from French châssis ) is the load-bearing framework of an artificial object, which structurally supports the object in its construction and function. An example of a chassis is a vehicle frame, the underpart ...

of the SU-100P. Improvements of the chassis and elimination of identified flaws continued until June 1955, after which the SU-100P and the SU-152G were accepted into service by the Soviet Army. However, most of the work on self-propelled guns was canceled by

Khrushchev Nikita Sergeyevich Khrushchev (– 11 September 1971) was the General Secretary of the Communist Party of the Soviet Union, First Secretary of the Communist Party of the Soviet Union from 1953 to 1964 and Premier of the Soviet Union, chairm ...

in 1955, and the SU-100P never saw mass production.

Design description

Hull and turret

The SU-100P has an open turret mounted on the hull. In bad weather conditions, the combat compartment could be covered with a canopy. The hull is divided into 3 compartments: the power compartment, the driving compartment and the combat compartment. The engine and the transmissions were housed in the front right part of the vehicle.The front left part was the driving compartment. The middle of the vehicle was the combat compartment, and a box-shaped turret houses the gun. The entire vehicle needed a crew of 4 to operate. The armor for the hull was , while the turret had armor.

Armament

The main armament of the SU-100P was the D-50/D-10 100-mm gun developed by a team led by F.F. Petrov in the design bureau of Plant No. 9 in 1947. The SU-100P is capable of firing

Armor-Piercing Armour-piercing ammunition (AP) is a type of projectile designed to penetrate either body armour or vehicle armour. From the 1860s to 1950s, a major application of armour-piercing projectiles was to defeat the thick armour carried on many warsh ...

and

High-Explosive Fragmentation A shell, in a military context, is a projectile whose payload contains an explosive, incendiary, or other chemical filling. Originally it was called a bombshell, but "shell" has come to be unambiguous in a military context. Modern usage so ...

shells.The vehicle can hold 50 shells.The gun had a traverse range of 143 degrees to either the left or the right, and the maximum elevation range was from -4 to +37 degrees. The ZIS-3 panoramic sight was used when firing from closed position while the OP-2 telescopic sight was used to aim the gun during direct firing.

Communications

The SU-100P was equipped with a 10 RT-26 radio for external communications. The crew communicated via the TPU-47-3 intercom as well as light signaling.

Engine and transmission

The SU-100P is powered by a V-105 (V-54-105)

V12 V12 or V-12 may refer to: Aircraft * Mil V-12, a Soviet heavy lift helicopter * Pilatus OV-12, a planned American military utility aircraft * Rockwell XFV-12, an American experimental aircraft project * Škoda-Kauba V12, a Czechoslovak experim ...

4-piston

diesel Diesel may refer to: * Diesel engine, an internal combustion engine where ignition is caused by compression * Diesel fuel, a liquid fuel used in diesel engines * Diesel locomotive, a railway locomotive in which the prime mover is a diesel engin ...

engine that can output . It is modified from a V-54 engine while having the following adjustments: * The spring corrector of the NK-10 pump was removed; * The outlet nozzles, intake manifold, fan drive and the water pump cover was modified; * The "Kimaf-STZ"

oil filter An oil filter is a filter designed to remove contaminants from engine oil, transmission oil, lubricating oil, or hydraulic oil. Their chief use is in internal-combustion engines for motor vehicles (both on- and off-road ), powered aircraft, r ...

was installed on a separate bracket; * A G-74 3 kW generator was installed; * The motor resource was increased; * The radiator grille was changed for better cooling efficiency.

Chassis

The chassis of the SU-100P had 6 pairs of road wheels and three pairs of support rollers, a pair of drive wheels and a pair of guide wheels.

Variants

* SU-152G (Obj 108)- Self-propelled gun based on the chassis of the SU-100P and armed with a 152mm D-50/D-1 howitzer *BTR-112 (Obj 112)-

Armoured Personnel Carrier An armoured personnel carrier (APC) is a broad type of armoured military vehicle designed to transport personnel and equipment in combat zones. Since World War I, APCs have become a very common piece of military equipment around the world. Acc ...

based on the SU-100P chassis * SU-152P (Obj 116)- Self-propelled gun based on the chassis of the SU-100P and armed with a 152mm M-53 cannon *SPU-117 (Obj 117)- A searchlight mounted on a modified SU-100P chassis to support other armored vehicles during night combat *GMZ-1 (Obj 118)-

Minelayer A minelayer is any warship, submarine or military aircraft deploying explosive mines. Since World War I the term "minelayer" refers specifically to a naval ship used for deploying naval mines. "Mine planting" was the term for installing controll ...

based on the SU-100P chassis *GMZ-2 (Obj 118-2)-

based on the SU-100P chassis * ZSU-37-2 Yenisei self-propelled anti-aircraft gun (Obj 119)- Self-propelled anti-aircraft gun based on the SU-100P chassis * SU-152 "Taran" (Obj 120)- Experimental self-propelled gun *

2K11 Krug The 2K11 ''Krug'' (russian: 2К11 «Круг»; en, circle) is a Soviet and now Russian medium-range, medium-to-high altitude surface-to-air missile (SAM) system. The system was designed by NPO Novator and produced by Kalinin Machine Building ...

anti-aircraft missile system (Obj 123)- 2K11 Krug anti-aircraft missile system mounted on a SU-100P chassis *1S32 (Obj 124)- Missile guidance system for the

anti-aircraft missile system *2K10 Ladoga (Obj 125)-

Tactical ballistic missile A tactical ballistic missile (TBM), or battlefield range ballistic missile (BRBM), is a ballistic missile designed for short-range battlefield use. Typically, range (aeronautics), range is less than . Tactical ballistic missiles are usually ...

mounted on a SU-100P chassis *2K10 Ladoga (Obj 126)-

mounted on a SU-100P chassis *Object 127 (Obj 127)- Special combat vehicle designed to clear accumulations of tanks and other enemy targets (existed only in blueprints) *Object 130 (Obj 130)- Self-propelled anti-aircraft gun (existed only in blueprints) *

2S3 Akatsiya The SO-152 (Russian: СО-152) is a Soviet 152.4 mm self-propelled gun developed in 1968, as a response to the American 155 mm M109 howitzer. Development began in 1967, according to the Resolution of the Council of Ministers of the Sovie ...

(Obj 303)- In the late 1960s, the SU-100P chassis formed the basis for the 2SZ Akatsiya self-propelled howitzer *

2S4 Tyulpan The 2S4 ''Tyulpan'' (often spelled ''Tulpan'', russian: 2С4 «Тюльпан»; en, tulip) is a Soviet 240 mm self-propelled heavy mortar. "2S4" is its GRAU designation. The Tyulpan is the largest mortar system in use today. History ...

(Obj 305)- Heavy self-propelled mortar *Object 306 (Obj 306)- Multi-purpose conveyor tractor * 2S5 "Hyacinth-S" (Obj 307)- Self-propelled gun *Buk-M1-2 SAM system 9S18M1-1 Tube Arm target acquisition radar (Obj 308)-

Target acquisition radar This is a list of different types of radar. Detection and search radars Search radars scan great volumes of space with pulses of short radio waves. They typically scan the volume two to four times a minute. The waves are usually less than a meter ...

for the

Buk missile system The Buk (russian: link=no, "Бук"; "beech" (tree), ) is a family of self-propelled, medium-range surface-to-air missile systems developed by the Soviet Union and its successor state, the Russian Federation, and designed to counter cruise mis ...

1K17 Szhatie The 1K17 Szhatie (Russian: 1К17 Сжатие — "Compression") is a self-propelled laser vehicle of Soviet origin. The platform uses a Msta-S chassis with a battery of laser projectors mounted in the turret. It was developed by the Soviet Union ...

(Obj 312)- Self-propelled laser system for counteracting enemy optical-electronic devices *2S11 "Hyacinth-SK" (Obj 313)- Modified version of 2S5 "Hyacinth-S" self-propelled gun *

GMZ-3 The GMZ-3 (russian: ГМЗ-3, russian: Гусеничный минный заградитель-3, translit=Gusenichnyi minnyi zagraditel-3 or "Tracked Minelayer-3") is an armoured minelayer, minelaying vehicle developed for the Engineering Troops ...

(Obj 318)-

*Object 319 (Obj 319)

Surviving examples

* : **

Kubinka Kubinka (russian: Ку́бинка) is a town in Odintsovsky District of Moscow Oblast, Russia, located on the Setun River, west of Moscow. Population: __TOC__ History Kubinka, founded in the 15th century, may have been named after Prince , a ...

: The single experimental prototype is held on display at the

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 ...

References

{{Post WWII Soviet AFVS 100 mm artillery Abandoned military projects of the Soviet Union Self-propelled howitzers of the Soviet Union