is also associated with a variety of support facilities including the 2F55, 1R10 and 2V110 repair and maintenance vehicles, the MTO-AGZ workshop and the 9V921 test vehicle and others. These facilities provide maintenance for the 2K22 battery in the field as well as scheduled overhauls. Each system can attack six targets simultaneously (1 for each machine 2S6) limited in height of and a height of from −10° to 87°. The 2S6 combat vehicle uses the GM-352 and later GM-352M chassis developed and produced by the Minsk Tractor Plant (MTZ) which has six road wheels with hydropneumatic suspension on each side, a drive sprocket at the rear and three return rollers. An NBC system is also integrated into the chassis, which is armored to protect it from small arms fire. an automatic gear change and diagnostic capability are available with latest Tunguska-M1 which uses the new GM-5975 chassis developed and produced by MMZ. GM-5975.25 has a cruising range of and a maximum speed of . It can function in ambient temperatures of and up to an altitude of . It has an ability of climb hills with up to a 35° slope. Overall, the layout is similar to the previous ZSU-23-4 with a large central 360-degree rotating turret (designated the 2A40) containing the armament, sensors and three of the crew: the commander, gunner and radar operator. The driver sits in the front left of the hull, with a gas turbine APU to his right and the multi-fuel diesel engine in the rear of the hull. An electromechanically scanned parabolic E-band (10 kW power) target acquisition radar is mounted on the rear top of the turret that when combined with the turret front mounted J-band (150 kW power) monopulse tracking radar forms the 1RL144 (NATO:Hot Shot) pulse-Doppler 3D radar system, which can detect and track targets flying high as . Alongside the 1A26 digital computer and the 1G30 angle measurement system form the 1A27 radar complex. Tunguska-M has the 1RL144M radar with detection range and tracking range . The mechanically scanned target acquisition radar for the Tunguska-M1 offers a 360° field of view, a detection range of around and can detect targets flying as low as . Its tracking radar has a range of . A C/D-band IFF system is also fitted and designated 1RL138. The radar system is highly protected against various types of interference, and can work if there are