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Overview

The MT-25 is a Soviet project for a light tank.

Development

The development of the MT-25 started during early 1943, during the production of the T-70 and T-80 light tanks. These tanks were produced with roughly the same principles as the light tanks that preceded them, this made them largely ineffective in the second half of the war.

The MT designation stands for Mototank. The designation concept of the Mototank was to develop a convertible vehicle that combines the quality of tracked vehicles, and wheeled vehicles with their high speed. The MT-25 was developed as a light tank, as the developers were focusing on the speed and the low caliber main gun, however the MT designation was capable of being assigned to light, medium, or heavy tanks.

Letter

On February 9th 1943, a proposal letter was sent from the engineers to Stalin;

"To the Chair of the State Committee of Defense of the Union of Soviet Socialist Republics, I.V. Stalin.

Fulfilling our duty to the Motherland in this period of relentless and heroic struggle of the Soviet people against the German fascist occupants, and protection of our honour, freedom, and independence, we developed blueprints of a new combat vehicle.

During development, we have considered the following factors:

  1. High movement speed.
  2. Low damage as a result of being hit.
  3. Large operational range.
  4. Ability to suddenly attack the enemy.

The vehicle we have developed is called MT-25, and is a wheeled vehicle, with every wheel being a drive wheel. If tracks are added, the MT-25 becomes a tracked vehicle. The vehicle's mass is 25 tons. The average speed is 40—45 kph, maximum 100km/h. Since every wheel is a drive wheel, the vehicle is very survivable. Even if half of the wheels are disabled, the vehicle does not stop. When the engine uses a muffler, the vehicle moves silently. Armament: 47mm gun and 3 machine guns. We ask you to consider our proposal and accept it as a gift in honour of the Red Army's 25th anniversary.

Engineers F.F Gorodkov A.I. Starodubtsev

February 9th, 1943"

Suspension & Drive Gear

MT-25 design suspension drive gear

Suspension and drive gear layout.

MT-25 design suspension

Suspension closeup.

The suspension for the MT-25 consisted of a torsion bar system similar to the KV-1, however this was combined with the convertible nature of the A-20. The vehicle could drive on both its tracks, and its wheels. The wheels lacked the ability to rotate, so they were to turn like a tank. Each wheel was powered, as to lower the possibility for the tank to be immobilized from a shot to the wheels. Loss of singular or even multiple wheels would render the tank still capable of movement, which was considered very important by the developers.

Fate

The MT-25 was reviewed but was not accepted into production. The design choices were too extreme in both complexity, and weight. The vehicle was not developed further.

Soviet Union 1936-1955 Soviet Land Vehicles Red Army
1919 - 1945
Tracked Vehicles
Light Tanks Tankettes PPGT-17T-21T-23T-27
Standard Light Tanks GAZ-70LTGLTPLTTBNIObj. 211Obj. 217T-18 (M)T-26 (193119321933193719381939-1-4)T-30T-45T-50T-53T-60 (12ZiS-19)T-70 (M)T-80T-118TT-126T-127
Amphibious Light Tanks K-90PT-1 (A)T-5PchT-36T-37 1933T-37 1934T-38T-39T-40T-41T-43 (-1-2)TM
Flamethrower & Chemical Light Tanks KhBT-7OT-7OT-26OT-130OT-131OT-132OT-133OT-133EOT-134
Remote Controlled Light Tanks TTBT-7TT-26TU-26
Utility Light Tanks BT-DTSBT
Cavalry/Fast Tanks A-8A-20BDT-1BT-1BT-2BT-2ISBT-3BT-4BT-5 (AISPKh)BT-5ISBT-6BT-7BT-7MBT-20D-38MT-25T-46
Lend-Lease Lights TetrarchM3A1 StuartM24 Chaffee
Command Light Tanks BT-TUKBT-7T-26PT (early)T-26PT (late)
Medium Tanks Standard Medium Tanks A-20A-32A-34A-43KV-13T-22T-24T-28 (193219341938E 19381940M8595)T-29T-34 SeriesT-34 M1940T-34 M1941T-34E M1941T-34 M1941/1942T-34 M1942T-34 M1942/1943T-34 M1943T-34 M1943/1944T-34MT-34M M1942T-34-57 M1941T-34-57 M1943T-34-57 M1944T-34-85 M1943 (early)T-34-85 M1943 (late)T-34-85 Model 1944T-43T-44T-112
Lend-Lease Mediums Matilda IIMatilda IV M4A2 "Sherman" M4A2(76)W "Sherman"
Flamethrowing Medium Tanks OT-28OT-34 M1941OT-34 M1942OT-34-85
Heavy Tanks Standard Heavy Tanks A-7 IS-1IS-100IS-2IS-3IS-4IS-6IS-7KV-1 (19391940E 194019411942S 1942)KV-3KV-4KV-5KV-7KV-9KV-10KV-11KV-85KV-100KV-122KV-220KV-221KV-222SMKT-32T-35-1T-35-2T-35AT-35BT-39T-100T-150U-14
Flamethrowing Heavy Tanks KV-8 KV-8S KV-8MKV-12
Self-Propelled Guns SPAA GAZ-72SU-8SU-11SU-17SU-72T-60-ZT-70-ZT-90ZSU-37ZUT-37
SPATG GAZ-71ISU-122 (-1-2-3S)KhTZ-16OSU-76SU-26SU-31SU-71SU-76SU-76iSU-85SU-85BSU-85iSU-85MSU-100SU-100USU-101SU-102SU-122PSU-122-44ZiS-30
SPG BT-5ABT-5ATBT-7AISU-130ISU-152 (-1-2)KV-2 (107)KV-14OSU-76SU-1SU-3SU-6SU-7SU-10SU-14-2SU-18SU-45SU-122 (-3M)SU-130SU-152T-26-4
SPH AT-1S-51SU-2SU-5 (-1-2-3)SU-14
SPRA BM-8-24KV-10RBT-5
Miscellaneous Bridge-related IT-26IT-28ST-26
Transport & Towing ATPHTZ KomunarKomiternStalinets 2S-60S-65STZ-5 StalingradecT-20 KomsomoletsT-26TT-26T2VoroschilovetsYA-12
Half-Tracked Vehicles
Combat Armoured Cars BA-30BA-64Z
SPAA M15A1 CGMCZiS-42ZSU-17
SPATG GAZ-TKSU-57ZiS-41
Utility Transport Autocar 2½-ton HalftrackB-3GAZ-60M2 HalftrackM5 HalftrackNATI-3ZiS-22ZiS-33ZiS-35ShZiS-42ZiS-42M
Wheeled Vehicles
Combat Armoured Cars BA-IBA-3BA-5BA-6 (M)BA-9BA-10 (M)BA-11 (D)BA-20BA-21BA-27 (M)BA-64BA-NATIBADBAD-2D-8D-12D-13FA-2FAI (M)GAZ-TKPB-4PB-7LB-23LB-62
Railroad Armoured Cars BA-6 ZhDBA-10 ZhD (M)BA-20 ZhDBA-64 ZhDBAD-2 ZhDFAI ZhD
SPAA 94-KM SPAAGChevrolet G7107 SPAAGGAZ-AAA SPAAG
SPATG KSP-76SD-57 (N)ZiS-31
SPH SU-1-12SU-12
SPG SU-4
SPRA BM-13-16
Utility APC BA-64E
Medical BA-22
Motorcycles BSA-M20
Transport GAZ-63
Trailers KP-42KP-43
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