Russia’s Terrifying 2S7 Pion: The World’s Most Powerful Heavy Artillery

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A 2S7 complex weighing up to 46.5 tons. It is 10.5m long, 3.38m wide, and 3m high. Its armor protects the crew from light firepower and shell fragments.

The 2S7 carries a crew of fourteen; seven are carried by the Pion and seven are with an auxiliary vehicle. The system carries four rounds of ammunition; four more rounds are carried by the support vehicle. Due to the long range, the crew can fire one or two rounds and leave position before the first round hits the enemy position over 40 km away. This makes the 2S7 less susceptible to counter-battery fire, from an enemy with a counter-battery radar.

The 2S7 is powered by a V-46-I V12 turbocharged diesel engine, with 840 horsepower. It can reach a maximum road speed of 50 km/h, a range of 650 km. Its torsion bar suspension is retained from the T-80. 2S7 can cross obstacles 1.2 m high and 2.5 m wide trench.

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The main weapon of the 2S7 Pion is a 203 mm 2A44 gun. The mounting hardware allowed an inherent traversal of 15-degrees to the right or left before the entire vehicle needed to be turned into the direction of desired fire. Its elevation span was from 0 to +60 degrees. Prior to firing, a large spade located at the rear of the hull was lowered to brace the vehicle for the impact of recoil forces to follow.

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