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BTO (RANK 1.3) (🚩USSR) (Light tank) (BT-5)

🧭 BT-5 Tank – Overview and History
The BT-5 was a Soviet light fast tank developed in the early 1930s. It was part of the BT (Bystrokhodny Tank – “Fast Tank”) series, designed for high-speed mobility and used primarily for reconnaissance, cavalry roles, and deep operations. It featured the Christie suspension system and convertible drive, allowing it to run on either tracks or wheels.

🛠️ Design and Development
Based on the American Christie tank chassis, the BT-5 improved upon its predecessor, the BT-2, by introducing a new turret and mounting a more powerful 45 mm 20-K gun.

Its armor was relatively light, but its high speed and mobility made it effective in early mechanized warfare doctrines.

⚔️ Combat Use
The BT-5 saw combat in several conflicts:

Spanish Civil War (1936–1939) — supplied to Republican forces.

Battle of Khalkhin Gol (1939) — against Japanese forces in Mongolia.

Winter War (1939–1940) — used against Finland.

World War II (1941) — early use during the German invasion of the USSR.

By 1941, it was considered obsolete, mainly due to its thin armor and vulnerability to anti-tank weapons, but still used due to the lack of modern alternatives.

🔧 Notable Features
High speed (over 70 km/h on wheels) made it one of the fastest tanks of its era.

Convertible drive system allowed track removal and road travel on wheels — a rare feature.

Christie suspension gave it excellent cross-country mobility.




🛠️ BT-5 Tank Specifications
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| **Parameter** | **Value** |
| ---------------------- | ------------------------------------ |
| **Type** | Light fast tank |
| **Crew** | 3 (commander/gunner, loader, driver) |
| **Weight** | \~11.5 tons |
| **Armor thickness** | 6–20 mm |
| **Main armament** | 45 mm 20-K tank gun |
| **Secondary armament** | 1 × 7.62 mm DT machine gun |
| **Engine** | M-5 12-cylinder petrol engine |
| **Engine power** | \~400 hp |
| **Max speed (tracks)** | Up to 55 km/h |
| **Max speed (wheels)** | Up to 72 km/h |
| **Operational range** | 200–300 km |
| **Suspension** | Christie |
| **Drive type** | Convertible (tracks/wheels) |