Armament | The 2S9 Nona-S is equipped with a two-man turret. The turret roof has two hatches, one for the gunner and the other for the loader. Turret traverse is limited to 30º either side with an elevation for the mortar from -4° to +80°. The main armament of the 2S9 consists of a 120 mm breech-loaded gun 2A51 with a barrel approximately 1.8 m long. The gun is provided with a breechblock with plastic obturator that rams the round into the cannon barrel, which is locked by the wedge at the firing moment. The 120 mm mortar has a rate of fire of 6 to 8 rds/min. Muzzle velocity is 560 m/s for the HEAT round and 367 m/s for the artillery rounds. The direct fire HEAT projectile is estimated to defeat up to 650 mm of conventional steel armour. In the indirect fire role the mortar fires high-explosive, white phosphorus and smoke rounds. The standard HE mortar bomb has a maximum range of 8,855 m while the 120 mm rocket-assisted mortar bomb has a maximum range of 13,000 m. The fighting compartment has stowage for 40 rounds of ammunition. | Design and protection | The 2S9 Nona-S uses the same chassis as the BTR-D, which is a longer chassis of the BMD-1 airborne infantry fighting vehicle with 6 roadwheels rather than five roadwheels. The hull and the turret of the 2S9 is welded aluminium. It has a crew of four, with the driver in the front centre of the hull, commander at the left front of the hull and two soldiers in the turret with the gunner at the left side and the loader on the right side. | Propulsion | The 2S9 Nona-S is motorized with a 5D20 diesel engine developing 240 hp. coupled to an manual transmission with 5 forward and 1 reverse gears. The vehicle can run at a maximum road speed of 60 km/h with a maximum cruising range of 500 km. The hydropneumatic suspension on each side consists of six roadwheels each side, five track-return rollers with the idler at the front and the drive sprocket at the rear. The ground clearance of the suspension can be adjusted between 100 and 450 mm by the driver from inside the vehicle. | Accessories | The SO-120 (2S9) is fully amphibious and is powered in the water by two water-jets at the rear. Standard equipment includes an NBC system, night vision equipment and an electric bilge pump. | | Specifications | Back to top | Armament | One 120mm 2A60 gun | Country users | Afghanistan, Azerbaijan, Belarus, Kyrgystan, Moldova, Russia, Turkmenistan, Ukraine, Uzbekistan, Vietnam. | Designer Country | Russia | Accessories | Infrared night vision, NBC protection system. | Crew | 4 | | Armor | Protection against small arms and shell splinters. | Weight vehicle | 8,700 kg a a | Speed vehicle | 60 km/h maximum road speed | Range | 500 km | Dimensions | Length: 6.02 m; Width: 2.63 m; Height: 2.3 m | | | | |