Rostec showcases new Sprut-SDM1 light tank with upgraded armor kit at Army-2024.

At the Army-2024 exhibition, Rostec presented a modernized version of the 2S25M 125mm amphibious light tank, designated as the Sprut-SDM1. A key feature of this latest model is its enhanced armor, which now includes additional protective elements such as screens and grilles. These modifications are intended to improve the vehicle's resistance to small-caliber gunfire. While the armor cannot withstand large-caliber projectiles, it provides protection against smaller threats commonly encountered during airborne operations.
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According to Vladimir Artyakov, Deputy Head of Rostec, the Sprut-SDM1 is in the final stages of preparation for adoption by the Russian army. (Picture source: Michael Jerdev)

The modernized Sprut-SDM1 has undergone state testing, with subsequent adjustments made to its design based on the test results. These adjustments aim to ensure the vehicle meets the specific requirements of the Russian military, particularly the Airborne Forces. The enhanced armor protection is designed to increase the vehicle's survivability in environments where small arms fire and shrapnel are prevalent.

According to Vladimir Artyakov, Deputy Head of Rostec, the Sprut-SDM1 is in the final stages of preparation for adoption by the Russian army. The weapon system has successfully passed state tests, and the necessary adjustments to the design documentation have been completed. The vehicle is now being readied for serial production, which will commence once it is officially accepted into service.

The Sprut-SDM1 represents a modernization of its predecessor, the 2S25 Sprut-SD, and includes several updated features. It is built on the BMD-4M chassis, a platform chosen for its suitability for airborne operations. The upgraded vehicle includes a new fire control system, a more powerful engine, an improved chassis information and control system, a new sighting system, and updated software and hardware components. These changes are intended to enhance the vehicle's reliability and operational performance.

A key feature of this latest model is its enhanced armor, which now includes additional protective elements such as screens and grilles. (Picture source: Michael Jerdev)

In terms of firepower, the Sprut-SDM1 is equipped with a 125 mm 2A75M smoothbore tank gun, designed to offer firepower comparable to that of the T-90MS main battle tank. This gun is capable of firing a variety of ammunition types used by the T-72 and T-90 tanks, including the Invar-M guided missile, which has a range significantly greater than standard tank-fired projectiles. The vehicle's turret is fully stabilized, allowing for accurate firing during movement or amphibious operations. The secondary armament includes two 7.62 mm PKTM machine guns: one mounted coaxially with the main gun and the other in a remotely controlled weapon station on the turret.

The Sprut-SDM1 is designed with amphibious capabilities, enabling it to operate in various combat environments. It can cross water obstacles, be transported by military cargo aircraft, and be air-dropped with its crew inside. Its mobility is further supported by a UTD-29 multi-fuel diesel engine, allowing the vehicle to reach speeds of up to 70 km/h on roads and 7 km/h in water. The vehicle's suspension system, which can be adjusted by the driver, enhances its adaptability to different terrains.

Standard equipment on the Sprut-SDM1 includes night vision devices for all crew members, an NBC (Nuclear, Biological, Chemical) protection system, and a digital fire control system. The fire control system incorporates sensors that account for factors such as wind speed and vehicle movement, ensuring accurate targeting under various conditions. Both the gunner and commander have access to day/night vision sights with integrated rangefinders and ballistic computers.

In terms of firepower, the Sprut-SDM1 is equipped with a 125 mm 2A75M smoothbore tank gun, designed to offer firepower comparable to that of the T-90MS main battle tank. (Picture source: Michael Jerdev)