kleinerPanzer

T-70B: Light Work on a Light Tank

T-70B  

36 members have voted

  1. 1. Would you like to see the T-70B in-game?

    • Yes, in the tech tree
      33
    • Yes, as a premium (please explain)
      2
    • Yes, as a gift/rare (please explain)
      1
    • No (please explain)
      0


The T-70B (very, very frequently referred to incorrectly as T-70M) was a modernized version of the T-70 we have in the game, the latter of which is sometimes referred to by its pre-production name GAZ-70. The T-70B, when compared with its predecessor, has wider track, a new air filtration system, slightly stronger armor, higher ammunition count, stronger suspension, a different driver's hatch, new radios, and more.

 

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A surviving T-70B in Nizhyn, Ukraine. 

 

 OVERVIEW

 

The T-70B is overall very similar to the current T-70. As many (almost all) of my suggestions, it does not add anything new to the game, but simply a slightly better version of the T-70. It would be added simply for the sake of completion or slightly better armor. 

 

Images

Spoiler

t70b19-d9cc36e810c716861d1cc7f31bc77a50.

t70b20-80b7d3da855ff60da90d5c48775622f0.

t70b13-cf2bf48ad02fab389fc7ae56b8486002.

t70b15-44a7eb055d6df2d8c8057b89ca8ae3c6.

t70b14-84908d6e47b40a52e88573dbc367bba2.

t70b11-d8af0fb7b35fb8cb076a285d34f2895d.

t70b10-53781cb138dec86275b3034b411cf575.

t70b08-b5ef5b78c598fa4cc5a47e77202b722b.

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HISTORY

 

The story of the T-70 can be traced back into the early 1930's when the Soviet Union sought to develop a new light tank to replace the inadequate T-27 tankette. Through this, the T-37A and T-38 designs emerged, each armed with a single DT machine gun. This was deemed insufficient before WWII even began, and plans arose to upgun Soviet light tanks.

 

Next in line came the T-40 and its brother the T-30. They were armed, in standard configuration, with a 12,7 mm DShK and 20 mm ShVAK (TNSh-20) respectively. The latter of the two weapons would stick through into the T-60 light tank design, which forwent the amphibious capabilities of all its predecessors to increase armor. However, by 1941's standards, the T-60 had itself become obsolete and was in desperate need of an upgrade.

 

The primary objective of the upgrade program was to improve the firepower. With the advent of newer and larger tanks on the battlefield, the 20 mm TNSh-20 (a derivative of the ShVAK aircraft cannon) was no longer sufficient. After a bit of dawdling, the 45 mm 20-K was settled on.

 

To upgun the T-60 with the 20-K, the turret had to be enlarged and the turret ring widened. These changes were made and a larger, very bulbous cast turret was created. Later on, it was decided that the armor profile as a whole had to be upgraded as well. The protruding hood for the driver was exchanged for a solid sloped armor plate, and many other components were streamlined. An extra road wheel had to be added to account for the additional weight, and the GAZ-70 was born.

 

It was reasonably successful in trials. Although it suffered from some issues, it was greenlit for production with a few minor changes. The cast turret would be exchanged for a welded one, among other things, creating the T-70 we are now familiar with.

 

In March 1942, the T-70 had entered serial production. However, even in the decree initiating production, it was mentioned that GAZ would have to make improvements to the tank. The added weight of the new design stressed the suspension, and wider tracks and wheels were needed to deal with the increased ground pressure. The vehicle, along with the T-60, suffered substantially in soft terrain, frequently bogging down.

 

The initial production run from March to May saw additional improvements to the cooling system and gun mount, which were found to be faulty. The addition of radios and revisions to the electrical systems also took place. A variety of other changes, such as the addition of a dust deflector, were made, bringing the tank up to similar standards as what is represented in-game. As production continued, numerous complaints about the engine and transmission popped up, among other issues.

 

In late June, trials were conducted using trial tanks with thicker side armor and reinforced running gear and suspension. After the tests concluded, the reinforced suspension was the only desirable result. There were also plans to upgrade the side armor to 25 mm, but it never happened. Over the next few months, the newer T-70 came into being. New, wider 30 cm tracks were introduced in July, while the position of the exhaust piping was moved from the hull side to the engine deck in August.

 

September saw the greatest number of changes. The reinforced suspension was introduced, as well as a double air cleaner, greatly prolonging the engine's lifespan. A new driver's hatch with a periscope was introduced, while a redesign of the ammo rack, which now held 90 rounds, also took place. In October, new angular fenders were introduced. December saw the production of a new gun mantlet, made from a mix of stamped and welded steel. This was the T-70B, and it would remain relatively unchanged from this standard for the rest of its production.

 

By early 1943, T-70B production had been cut down to make way for the new SU-12 (soon-to-be-called SU-76) self-propelled gun. However, some demand was kept up, as production of the T-80, a version with a two-man turret, was scheduled for the near future. The production of the T-70B had also slowed dramatically due to the slightly more complex construction and a major issue with faulty engine blocks. In April 1943, facing major production setbacks with the T-70B already, GAZ refused to produce the T-80. The decline of the role of the light tank was also beginning to take shape, and the T-80 project was dropped entirely.

 

A further few changes through the rest of 1943 involved the addition of better oil filters and carburetors, but otherwise, the T-70B remained set in stone. German bombings of T-70B factories tremendously stifled the already struggling production numbers, and by the end of 1943, the production of light tanks altogether had fizzled out. Their rapid obsolescence on the battlefields of WWII had killed the T-70B, and, by the beginning of 1944, all T-70B production had been supplanted by the SU-76M self-propelled gun. 

 

STATISTICS

Crew

3 (Driver, Gunner, Loader)

Length

4.40 m

Width

2.50 m

Height

2.00 m

Ground Clearance

0.30 m

Weight

10.0 t

Ground Pressure

0.84 kg/cm2 (probably not accurate)

Track-Ground Contact

3.12 m long, 0.30 m wide

Engine

2× GAZ-202 petrol
2x 85 hp at 3000 rpm (other sources cite 70 hp)

Power-to-Weight Ratio

14.0-17.0 hp/t (depending on numbers used)

Transmission

4 forward, 1 reverse

Speed

45 km/h (road), 35 km/h (cross-country)

Fuel

440 L

Range

300 km (road),  km (cross-country) 

Vertical Obstacle

0.7 m

Trench-Crossing

1.8 m

Max Gradient

67% (34°)

Max Fording Depth

0.9 m

Armor

Hull:

 35 mm front

 15 mm sides

 25 mm rear

 10 mm roof

 10 mm floor

Turret:

 50 mm front

 35 mm sides

 35 mm rear

 15 mm roof

Smoke

None

Armament

1x 20-K

1x DT

Primary

45 mm 20-K (90 Rounds)

Elevation: Manual, - to +°

Traverse: Manual, ±180°, °/s

Secondary

7,62 mm DT

 Elevation: As Primary Armament

 Traverse: As Primary Armament

 

SOURCES

1 - http://tankarchives.blogspot.com/2016/11/t-70-growing-up.html

2 - http://tankarchives.blogspot.com/2018/04/t-70b-light-modernization-of-light-tank.html

3 - https://www.o5m6.de/redarmy_old/t_70_early.html

4 - https://www.o5m6.de/redarmy_old/t70m_Tambov.html

5 - https://en.wikipedia.org/wiki/T-70

6 - https://ru.wikipedia.org/wiki/Т-70

7 - https://tanks-encyclopedia.com/ww2/soviet/soviet_T-70.php

8 - http://www.wardrawings.be/WW2/Files/1-Vehicles/Allies/2-USSR/01-LightTanks/T-70/File/T-70.htm

9 - http://www.wardrawings.be/WW2/Files/1-Vehicles/Allies/2-USSR/01-LightTanks/T-70/Data/T-70-mod42.htm

10 - http://www.wardrawings.be/WW2/Files/1-Vehicles/Allies/2-USSR/01-LightTanks/T-70/Data/T-70-mod43.htm

11 - Russian Tanks of World War II - Stalin's Armoured Might by Tim Bean and Will Fowler

12 - https://ww2-weapons.com/t-70/

13 - http://russian-tanks.com/light-tanks4.php

Edited by HugoTroop
added dev history that i accidentally omitted
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I voted yes. But instead of just adding a whole new tank of one we already have... why not change the current model to this one. Now this has been done before with the Hellcat. Cause this makes more sense, why add a whole new tank that's just a tank we already have... but its slightly better.

 

But knowing greedy Gayjoob its gonna end up as an event vehicle like the Swordfish Mk.II did.

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23 hours ago, tinygerman26 said:

I voted yes. But instead of just adding a whole new tank of one we already have... why not change the current model to this one. Now this has been done before with the Hellcat. Cause this makes more sense, why add a whole new tank that's just a tank we already have... but its slightly better.

 

But knowing greedy Gayjoob its gonna end up as an event vehicle like the Swordfish Mk.II did.

An event vehicle would be better than a remodel. I personally wouldn't mind seeing this in a folder with the current T-70. I hate when they remodel but change vehicles instead of adding new ones. I lost my favorite planes in the game that way (Bf-1110C-4).

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On 09/05/2020 at 09:51, devilskid4 said:

An event vehicle would be better than a remodel. I personally wouldn't mind seeing this in a folder with the current T-70. I hate when they remodel but change vehicles instead of adding new ones. I lost my favorite planes in the game that way (Bf-1110C-4).


This, either folder it with the T-70 or make it a event vehicle / premium. 

Edited by Jarms
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On 08/05/2020 at 18:51, devilskid4 said:

An event vehicle would be better than a remodel. I personally wouldn't mind seeing this in a folder with the current T-70. I hate when they remodel but change vehicles instead of adding new ones. I lost my favorite planes in the game that way (Bf-1110C-4).

Bruh. The C-4 and C-7 are no different. It was literally a payload upgrade. And I would say folder it. If it were to become a premium Gaijin would have wasted their time and the people who grinded it would be very very disappointed.

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On 12/05/2020 at 19:22, tinygerman26 said:

Bruh. The C-4 and C-7 are no different. It was literally a payload upgrade. And I would say folder it. If it were to become a premium Gaijin would have wasted their time and the people who grinded it would be very very disappointed.

Yes they are different, at least enough for the C-7 to be higher BR than the C-4 ever was. I enjoyed the C-4 mainly because it was low tier. When they replaced it the C-7 came in at a higher BR, hence why I'm annoyed it wasn't left at a lower BR and add the new one at the higher BR. I just don't think higher tier twin engine planes are as effective as low tier ones. Also I'm just a fan of seeing more vehicles than less vehicles.

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Put it in a folder with the existing T-70

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