BT-7 Light Tank

The BT-7 was the successor to the BT-5 and had a couple variants such as the BT-7A or BT-7M.

Variants:
1.
Name: BT-7
Type: Light Tank
Origin: Soviet Union
Year: 1935
Produced: 4965

Length: 5.58 Meters
Width: 2.23 Meters
Height: 2.23 Meters
Weight: 13000 Kilograms
Speed: 52 km/h (72 km/h on wheels)

Crew: 3

Primary Armament:
-45 mm 20K
Secondary Armament:
-7.62 mm DT

Armor:
-Hull
20 mm Front
13 mm Side
13 mm Rear
10 mm Top
6 mm Bottom
-Turret
15 mm Front
15 mm Side
13 mm Rear
10 mm Top

2.
Name: BT-7A
Type: Self-Propelled Artillery/Light Tank
Origin: Soviet Union
Produced: 154

Length: 5.66 Meters
Width: 2.23 Meters
Height: 2.41 Meters
Weight: 13500
Speed: 62 km/h (86 km/h on wheels, 50 km/h off-road)

Crew: 3

Primary Armament:
-76 mm RT-28 OR
-76 mm F-32
Secondary Armament:
-7.62 mm DT(2)

Armor:
-Hull
20 mm Front
13 mm Side
13 mm Rear
10 mm Top
6 mm Bottom
-Turret
15 mm Front
15 mm Side
13 mm Rear
10 mm Top

3.
Name: BT-7M
Type: Light Tank
Origin: Soviet Union
Produced: ?

Length: 5.8 Meters
Width: 2.29 Meters
Height: 2.44 Meters
Weight: 14650 Kilograms
Speed: 62 km/h (86 km/h on wheels)

Crew: 3

Primary Armament:
-45 mm 20K
Secondary Armament:
-7.62 mm DT (3)

Armor:
-Hull
22 mm Front
13 mm Side
13 mm Rear
10 mm Top
6 mm Bottom
-Turret
15 Front
15 Side
13 mm Rear
10 mm Top

Sources:
http://www.tanks-encyclopedia.com/ww2/soviet/soviet_BT-7.php
http://www.aviarmor.net/tww2/tanks/ussr/bt-7.htm