T-34S

Overview

T-34S
T-34S, prototype no. 2
General Data
Type	Medium Tank
Place of Origin	Soviet Union
Designed by	KB-520
Designer	Morozov, A. A.
Produced	Jun 1942
Number Built	2 prototypes
In Service	27 Oct 1942 - 23 Nov 1942 (trials)
Development
Developed From	T-34 izd. 1942g. T-43
Armament
Main Gun	76.2mm F-34 (77-rnds)
Main Gun Sights	TMFD-7 telescope PT4-7 periscope
Traverse	360°
Elevation	-3° to +25°
Coaxial Gun	7.62x54mmR DT (shared 3,600-rnds)
Hull Mounted Gun	7.62x54mmR DT (shared 3,600-rnds)
Crew Weaponry	2 x PPSh-41 (shared 300-rnds)
Misc Specs
Crew	5 (second prototype)
Dimensions
Weight	30,900kg
Automotive
Engine	V-2K V-12, water-cooled 38.8 liter diesel 600 HP @ 2,000 rpm
Auxiliary Power	Electric starter: 15HP
Gears	5 forward
Fuel Capacity	650l (internal) 150l (external)
Operational Range	400km (on-road)
Speed	32km/h (average) 54.7km/h (maximum)

The T-34S is a Soviet prototype medium tank developed in the early 1940s.

Development

The T-34S began development in mid 1942 in an attempt to improve the visibility and improve command effectiveness. The design bureau KB-520 in Nizhnij Tagil under the leadership of A. A. Morozov was chosen.

In June 1942, two prototypes were completed. The first model used a turret similar to existing T-34s, while the second used an experimental 3-man turret from the experimental T-43.

Trials were undertaken between 27 October 1942 and 23 November 1942, but the T-34S was ultimately not accepted for service.

Variants

Ob. A-32 Experimental light tank. It was armed with a L-10 cannon and two DT machine guns. Ob. A-32 Experimental light tank. It was armed with a 20-K cannon and two DT machine guns. Ob. A-34 Experimental medium tank. It was armed with a L-10 cannon and two DT machine guns. T-34 obr. 1940g. Serial medium tank produced by STZ with a L-11 cannon. T-34 obr. 1940g. "Mobilization variant" draft, with a 20-K cannon. T-34 obr. 1941g. Medium tank with a F-34 cannon manufactured at Factory No. 183 (in Kharkov). T-34 obr. 1941g. Medium tank with a F-34 cannon manufactured at Factory No. 183 (in Nizhny Tagil). T-34 obr. 1941g. Medium tank with a F-34 cannon manufactured by STZ. T-34 obr. 1941g. Medium tank with a F-34 cannon manufactured at Factory No. 112. T-34 obr. 1941g. (ZiS-4) Medium tank with a ZiS-4 cannon. T-34 obr. 1941g. Medium tank with a M-17T carburetor engine produced by STZ. T-34 obr. 1941g. Medium tank with a M-17F carburetor engine and additional armor from Factory No. 112. T-34 obr. 1941g. Medium tank with an experimental installation of high-explosive flamethrowers on the hull. Prototype vehicles were produced. T-34 obr. 1942g. Medium tank with reinforced armor through concrete shields (Tsygankov project, variant 1). T-34 obr. 1942g. Medium tank with reinforced armor through concrete shields (Tsygankov project, variant 2). T-34 obr. 1942g. Medium tank with reinforced armor through lattice screens (Ioffe-Kurchatov project). T-34 obr. 1942g. Medium tank equipped with equipment for underwater passage. A prototype was produced, it was not adopted for service. T-34 obr. 1942g. Medium tank with a new, "improved" hexagonal turret from Factory No. 183. T-34 obr. 1942g. Medium tank with a new, "improved" hexagonal turret from Factory No. 174. T-34 obr. 1942g. Medium tank with a new, "improved" hexagonal turret from UZTM. T-34 obr. 1942g. Medium tank with a stamped hexagonal turret from UZTM. T-34 obr. 1942g. Medium tank with a new, "improved" hexagonal turret from ChKZ. T-34 obr. 1942g. Medium tank with a stamped hexagonal turret from ChKZ. T-34 obr. 1942g. Medium tank with a M-30 howitzer in D-9 turret. Prototype. T-34S Medium tank with a 5-man crew. A new three-man turret was installed. It was not serially produced. T-34 obr. 1943g. Medium tank with reinforced armor through lattice screens (Ioffe-Kurchatov project) T-34 obr. 1943g. Medium tank with a hexagonal turret and installed commander's cupola? from Factory No. 112. T-34 obr. 1943g. Medium tank with a hexagonal turret and installed commander's cupola? from Factory No. 174. T-34 obr. 1943g. Medium tank with a hexagonal turret and installed commander's cupola? from Factory No. 183. T-34 obr. 1943g. Tank destroyer with a ZiS-4M cannon. It was not produced serially due to the drawbacks of the gun. T-34 obr. 1943g. (S-54) Medium tank a S-54 gun and two DT machine guns. It was not mass-produced, although it successfully passed military tests. OT-34 obr. 1940g. Flamethrower medium tank. A small batch of vehicles of this type was produced. OT-34 obr. 1942g. Flamethrower medium tank. The ATO-41 flamethrower is installed instead of the machine gun. T-34K Medium tank with additional radio communication equipment installed. Used as tank commanders of brigades and individual regiments. T-34G Medium tank with additional means of radio communication. They were used in the corps control link. AT-42 Prime mover. Zavod 183, Apr 1940. SG-34 Medium tank. Equipped with equipment for underwater passage. A prototype was produced. The main difference from serial vehicles is the more careful making of the hull and devices for hermetic sealing. PT-34 A tank-catcher equipped with a PT-3 tank roll trawl. Trawls were produced at the Tula Machine-Building Plant.

Soviet Union Land Vehicles Interwar & World War II Period (1919 — 1945)

Half-Tracked Vehicles
Combat	Armoured Cars	BA-30 • BA-64Z
	SPAA	M15A1 CGMC • ZiS-42 • ZSU-17
	SPATG	GAZ-TK • SU-57 • ZiS-41
Utility	Transport	Autocar 2½-ton Halftrack • B-3 • GAZ-60 • M2 Halftrack • M5 Halftrack • NATI-3 • ZiS-22 • ZiS-33 • ZiS-35Sh • ZiS-42 • ZiS-42M

Sources
Books	Online	Documents
• Отечественные Бронированные Машины - ХХ век - Том 2, 1941-1945. А.Г. Солянкин, М.В. Павлов, И.В. Павлов, И.Г. Желтов, 2005 (ISBN 5-94038-074-3)