kleinerPanzer

BT-7 Model 1935: Intermediate Workhorse

BT-7 (1935)  

25 members have voted

  1. 1. Should the BT-7 Model 1935 be implemented?

    • Yes, in the tech tree
      23
    • Yes, as a premium (please explain)
      0
    • Yes, as a gift/rare (please explain)
      1
    • No (please explain)
      1


The BT-7 Model 1935 was the first BT-7 variant. Compared to its predecessor, the BT-5, it had a redesigned hull, and was made from a mostly welded construction. It was otherwise halfway between the BT-5 Model 1933 and BT-7 Model 1937 found in-game, bearing the new hull but the old cylindrical turret.

 

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OVERVIEW

In terms of raw statistics and performance, the Model 1935 is halfway between the BT-5 Model 1933 and BT-7 Model 1937 currently in-game. In other words, it's effectively a BT-7 hull with a BT-5 turret. It would likely do well at either BR 1.0 or 1.3, and could easily be foldered with the BT-7.

 

Turret

Spoiler

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The twin hatches and cylindrical shape of the standard BT-5 turret are clearly shown here on this BT-7. It is identified by the shape of its front hull.

bt7s.jpg

A BT-7 Model 1935 without its tracks. The mountings for the horseshoe antenna can be seen.

Hull

Spoiler

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The standard shape for the BT-7 hull can be seen, with the entire armor plate meeting the driver's hatch.

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The rear hull of this BT-7 shows the new exhaust and overall redesign. 

 

HISTORY

The development of the BT-2 and BT-5 fast tanks was met with general success. While some issues were encountered here and there, none were drastic enough to warrant calling the project a failure or cancelling it. The BT tanks first saw combat against the Japanese in Manchuria in 1934 and 1935. While it had great performance against the inferior Japanese tanks, it was here that some of the flaws of the BT tanks were revealed.

 

The tank's armor was overall insufficient. Japanese anti-tank weapons could pierce its frontal armor from a considerable range, even though the BT-5's own 45 mm gun could easily do the same. The other major issue encountered was the negative effects of riveting the armor. Flame weapons, particularly Molotov cocktails, could easily seep through the gaps in the armor created by riveting, leading to disastrous consequences. Another issue was spalling. Non-penetrating hits, even by some smaller caliber arms, could send metal shrapnel from the rivets around the tank.

 

The next step in the evolution of the BT tank would come as the BT-7, the first model being produced later in 1935. The main design changes from the previous BT-5 were: a new, mostly welded construction, a new front hull design with thicker armor, a new engine, a new exhaust and rear hull, and a series of minor internal and external revisions. Some later production Model 1935 tanks also featured a rear-facing machine gun in the turret.

 

The BT-7 was a successor to the BT-5, but would rather fight alongside it rather than replace it. The next major action of the BT tanks, aside from the 50 or so BT-5s sent to Spain for the Spanish Civil War, would again be against the Japanese in Manchuria. Once again, the BT tanks performed excellently, especially under good leadership. It was also here that the BT-7 Model 1937 also first was combat. It featured a new, conical turret, and some improvements to the drivetrain.

 

In the Winer War against Finland, the BT tanks suffered. The couldn't utilize their mobility, and poor Soviet tactics led to the BT tanks becoming easy targets for Finnish tank-hunting teams. The next year, when the Germans invaded, the thousands of remaining BT tanks fell victim to a similar fate. The BT cavalry tanks were for the attack, cutting through enemy lines and wreaking havoc. The Soviets were fighting a defensive war, and were sending BT and T-26 tanks in more or less as cannon fodder. While the BT-5 and BT-7 could definitely achieve superiority or at least parity with many German tanks of the time, the lack of proper tactics to combat the German advance led to the near complete wiping out of the BT tanks in the European theatre. 

 

BT tanks were again used in their final combat against the Japanese in Manchuria during the short Soviet-Japanese war in 1945. They faced each other with the same archaic armor they had fought with nearly a decade ago, and the result was once more in the Soviets' favor.

 

STATISTICS

Crew

3 (Driver, Gunner, Loader)

Length

5.66 m

Width

2.23 m 

Height

2.42 m

Ground Clearance

39.0 cm

Weight

13.7 t 

Ground Pressure

0.65 kg/cm2

Engine

M-17T V12 Petrol
500 hp at 1445 rpm

Power-to-Weight Ratio

36.5 hp/t

Transmission

3 forward, 1 reverse

Speed

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

72 km/h (wheels)

Fuel

620 L

Range

370 km (road), km (cross-country)

500 km (wheels)

Wall-Climbing

[Unknown] m

Trench-Crossing

2.0 m

Max Gradient

75% (tracks)

26% (wheels)

Max Fording Depth

0.9 m

Armor

Hull:

 20 mm front

 20 mm sides (front)

 15 mm sides (rear)

 10 mm rear (top)

 13 mm rear (bottom)

 10 mm roof

 6 mm floor

Turret:

 15 mm front

 15 mm sides

 15 mm rear

 10 mm roof

Smoke

None

Armament

1x 20-K

1x DT

Primary

45 mm 20-K (172 Rounds)

Elevation: Manual, -8 to +25°

Traverse: Manual, 360°, 9.5°/s

Secondary

7,62 mm DT x1 (2394 Rounds)

Coaxial:

 Elevation: As Primary Armament

 Traverse: As Primary Armament

 

SOURCES

1 - https://en.wikipedia.org/wiki/BT_tank

2 - https://en.wikipedia.org/wiki/BT-7

3 - https://erenow.net/ww/russian-armour-in-the-second-world-war/2.php

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

5 -  https://www.jaegerplatoon.net/TANKS5.htm

6 - https://ru.wikipedia.org/wiki/БТ-7

Edited by kleinerPanzer
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Open for discussion. :salute:

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On 23/07/2019 at 09:39, kamikazi21358 said:

 

Since the one in game is 1937, and this is the 1935, shouldn’t the 1937 go in the folder of the 1935 then?

+1 for me and the foldering option seems the best way to do it.

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