Ds. 3100 – Tupolev Tu-4

A Soviet strategic bomber that was a copy of the American Boeing B-29 Superfortress. It was used by the Soviet Air Force (VVS) during the Cold War.

Ds. 3200 – Ilyushin Il-28

A Soviet jet bomber that was used by the Soviet Air Force (VVS) during the Cold War. It was known for its speed and versatility.

Dr. 3500 – T-55

A Soviet medium tank that was introduced in 1958. It featured improvements over the T-54, including a new gun stabilization system and a more powerful engine, and became the mainstay of Soviet armored forces for many years.

Dr. 3600 – Chieftain tank

A British main battle tank that was introduced in 1967. It featured a powerful 120mm gun, advanced armor protection, and a sophisticated fire control system.

Dr. 3700 – Leopard 1

A German main battle tank that was introduced in 1965. It was known for its speed and maneuverability, and featured a powerful 105mm gun.

Dr. 3800 – M60 Patton

An American main battle tank that was introduced in 1960. It featured a powerful 105mm gun and a new suspension system, and became the mainstay of American armored forces for many years.

Dr. 3900 – T-62

A Soviet main battle tank that was introduced in 1961. It featured a powerful 115mm gun and a new composite armor design, and became a significant upgrade over the T-55.

Dr. 4000 – AMX-30

A French main battle tank that was introduced in 1966. It featured a powerful 105mm gun and a new suspension system, and became a popular export tank.

Dr. 4100 – Challenger 1

A British main battle tank that was introduced in 1983. It featured a powerful 120mm gun, advanced armor protection, and a sophisticated fire control system.

Dr. 4200 – Leopard 2

A German main battle tank that was introduced in 1979. It featured a powerful 120mm gun, advanced armor protection, and a sophisticated fire control system, and became one of the most advanced tanks in the world.