A 2S9 self-propelled gun-mortar being transported by rail in 2009. Note that the hydropneumatic suspension is set at lowest position.
Source: Sergeev Pavel - © GNU Attribution Share-Alike license
The 2S9 Nona-S is a self-propelled mortar of Soviet origin. It was developed in the 1970's to improve the mobility of mortars serving with the air assault divisions. Additionally it provides a direct fire and and a limited anti-tank capability. The 2S9 is one of the the most numerous gun-mortar systems in the world.
The chassis of the BTR-D armored personnel carrier serves as the basis for the 2S9. In the middle of the vehicle a large turret is placed that is fitted with a breech loaded gun-mortar. The commander and driver are seated in the hull and the gunner and loader in the turret.
The 2A51 breech loaded 120mm smoothbore gun-mortar is the main armament of the 2S9. The turret allows for a limited traverse left and right. The maximum effective range is 8.8 km and 13 km with assisted ammunition. The rate of fire is 6 to 8 rounds per minute. As a gun mortar it is capable of direct fire and special HEAT ammunition is available for use against armored vehicles. There is no secondary armament.
The 2S9 is operated under full armor protection. The aluminium armor protects against shell splinters and small arms fire.
The tracked chassis with hydropneumatic suspension provides a good cross country mobility. A 240 hp diesel engine provides propulsion. The 2S9 can be paradropped from a variety of aircraft.
The 2S9 Anona is widely used in Russia and former states of the CIS. Unlike most Russian military equipment it is hardly used in Eastern Europe and saw limited exports.
Forward view of 2S9 Nona-S on public display.
Source: Vitaly V. Kuzmin - © GNU Attribution Share-Alike license
2S9: The 2S9 Nona-S is a self-propelled mortar that is armed with a breech loaded 120mm smoothbore gun-mortar. The gun-mortar can be used for both direct and indirect fire.
2S9-1: The product improved 2S9-1 features some internal redesigns and is capable of carrying 40 shells instead of 25. Since this variant was in production for about only 1 year it is less common than the original 2S9. Reportedly nicknamed "Sviristelka"
2S9M: The 2S9M is a 2S9 fitted with improved fire control system and new inertial and satellite navigation system. It was introduced in 2003. The 2S9M is not produced as a new vehicle, but is a modernization of existing 2S9 that is applied during scheduled overhaul.
The 2S23 Nona uses a turret and ordnance which are derived from the 2S9. Unlike the 2S9 the 2S23 is based on a wheeled chassis.
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