BT-7M

BT-7M

BT-7

BT-7M

BT-7

USSR

I Rank

Battle rating:

AB	RB	SB
2.0	2.0	2.0

Class:

Light tank

Research:5 900

Purchase:6 300

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Description

The BT-7M is a rank I Soviet light tank with a battle rating of 2.0 (AB/RB/SB). It was introduced in Update "Ixwa Strike".

General info

Survivability and armour

Armourfront / side / back

Hull20 / 15 / 13

Turret15 / 15 / 13

Crew3 people

Visibility84 %

Armour type:

• Rolled homogeneous armour (hull, turret)

Armour	Front (Slope angle)	Sides	Rear	Roof
Hull	20 mm (18°) Upper plate 15 mm (61°) Middle plate 20 mm Lower plate	20 mm Forward 15 mm + 4 mm Rearward	10-13 mm	10 mm Roof 4 mm Radiator grilles
Turret	15 mm Turret front 15 mm Gun mantlet	15 mm Forward 13 mm Rearward	13 mm	10 mm

Notes:

• Suspension wheels, tracks and torsion bars are 15 mm thick.
• Belly armour is 6 mm thick.

Mobility

Speedforward / back

AB69 / 12 km/h

RB and SB63 / 11 km/h

Number of gears3 forward

1 back

Weight14.7 t

Engine power

AB954 hp

RB and SB500 hp

Power-to-weight ratio

AB64.9 hp/t

RB and SB34.0 hp/t

Game Mode	Max Speed (km/h)		Weight (tons)	Engine power (horsepower)		Power-to-weight ratio (hp/ton)
	Forward	Reverse		Stock	Upgraded	Stock	Upgraded
Arcade	69	12	14.7	775	954	52.72	64.9
Realistic	63	11		442	500	30.07	34.01

Modifications and economy

Repair costBasic → Reference

AB249 → 320

RB286 → 368

SB359 → 462

Total cost of modifications5 940

4 500

Talisman cost410

Crew training1 800

Experts6 300

Aces75

Research Aces135 000

Reward for battleAB / RB / SB

20 / 20 / 30 %

106 / 106 / 106 %

Modifications

Mobility	Protection	Firepower
Tracks Research: 300 Cost: 230 55 Suspension Research: 330 Cost: 250 60 Brake System Research: 330 Cost: 250 60 Filters Research: 500 Cost: 380 90 Transmission Research: 640 Cost: 480 115 Engine Research: 640 Cost: 480 115	Improved Parts Research: 300 Cost: 230 55 Improved FPE Research: 330 Cost: 250 60 Crew Replenishment Research: 500 Cost: 380 90	Horizontal Drive Research: 300 Cost: 230 55 45mm_AP_1942_ammo_pack Research: 300 Cost: 230 55 Adjustment of Fire Research: 330 Cost: 250 60 Elevation Mechanism Research: 500 Cost: 380 90 Artillery Support Research: 640 Cost: 480 115

Armaments

Main armament

45 mm 20-K cannon

Ammunition188 rounds

Reloadbasic crew → aces

3.8 → 2.9 s

Vertical guidance-5° / 20°

45 mm 20-K					Turret rotation speed (°/s)					Reloading rate (seconds)
Mode	Capacity	Vertical	Horizontal	Stabilizer	Stock	Upgraded	Full	Expert	Aced	Stock	Full	Expert	Aced
Arcade	188	-5°/+20°	±180°	N/A	15.2	21.1	25.6	28.3	30.1	3.77	3.33	3.07	2.90
Realistic					9.5	11.2	13.6	15.0	16.0

Ammunition

Penetration statistics
Ammunition	Type of warhead	Penetration @ 0° Angle of Attack (mm)
		10 m	100 m	500 m	1,000 m	1,500 m	2,000 m
BR-240	APHEBC	70	68	59	50	42	35
BR-240SP	AP	73	71	62	52	44	37

Shell details
Ammunition	Type of warhead	Velocity (m/s)	Projectile Mass (kg)	Fuse delay (m)	Fuse sensitivity (mm)	Explosive Mass (TNT equivalent) (g)	Ricochet
							0%	50%	100%
BR-240	APHEBC	760	1.43	1.2	9	29.26	48°	63°	71°
BR-240SP	AP	757	1.43	N/A	N/A	N/A	47°	60°	65°

Ammo racks

Full ammo	1st rack empty	2nd rack empty	3rd rack empty	4th rack empty	5th rack empty	6th rack empty	Visual discrepancy
188	__ (+__)	__ (+__)	__ (+__)	__ (+__)	__ (+__)	__ (+__)	__

Machine guns

7.62 mm DT machine gun (coaxial)

Ammunition1 890 rounds

Belt capacity63 rounds

Reloadbasic crew → aces

10.4 → 8.0 s

Fire rate600 shots/min

7.62 mm DT
Mount	Capacity (Belt)	Fire rate	Vertical	Horizontal
Coaxial	1,890 (63)	600	N/A	N/A

Usage in battles

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Pros and cons

Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in a bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".

Pros:

• More powerful engine, meaning it is much faster than the previous BT-7
• Fast firing gun

Cons:

• Sits at a higher BR than the previous BT-7
• Armour remains paper thin, with heavy machine guns and autocannons from SPAA being able to shred it

History

The BT-7M light tank was developed in 1936 and started production in 1939. It was the last BT-series tank produced. When it was developed it was the fastest tank in the world. Around 800 tanks were produced because of the arrival of the T-34. The BT-7M fought in the beginning of The Great Patriotic War.

Media

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See also

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• reference to the series of the vehicles;
• links to approximate analogues of other nations and research trees.

External links

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