is operational at all gun elevations, with a capacity of over 30 work cycles from one standard compressed air tank mounted on one of the trails. Development of NORA-C was abandoned in 1991, and NORA-B suffered an almost similar fate. But after 2001, it was decided to continue the NORA-B project, and development was reactivated. In 2006, a new self-propelled gun with many new improvements and modifications was developed, known as NORA B-52. Today, the latest version, NORA B-52, has little similarities with the original NORA-B project, as the new system is much more modern and automated. On the basis of the NORA M-84 development, a conversion of Soviet 130 mm towed field gun M1954 (M-46) to a bigger caliber was set. In 1986, it was accepted by the Yugoslav People's Army under the designation M-46/86 in 152mm caliber. Another version for export, M46/86, with 155mm gun caliber was developed. Two more versions of NORA M-84 were developed after 2008: 155 mm / 39 cal. NORA-A1 light gun-howitzer M08 152mm / 45 cal. towed gun Ammunition With the introduction of the gun, new munition was developed. In 1984, new ammunition with base-bleed was tested with a range of 34.5 km on NORA M84 152mm. In 1986, serial production of ammunition started under the designation M84/ГГ. It has a maximum muzzle velocity of 895 meters per second, and was ahead of Soviet ammunition for 152 mm howitzer 2A65 at the time of introduction. Variants There are several variants of NORA artillery systems now in use or offered for sales or export: NORA M-84 Basic variant that was accepted in the armament of the YPA in 1984. Small quantities are in use. NORA M-84B1 Variant with 18 liters redesigned powder chamber and reduced mass to 6.88 tones. Most used variant. Range 34.5 km. NORA M-84B2 Variant fitted with a pneumatic loader which is operational at all gun elevations, with the capacity to fire over 30 round. M46/84 Converted M-46 130mm gun to NORA standard using 152mm or 155mm 45 caliber barrel and other parts developed through NORA program. In 155mm M46/84 variant range of 39 km is achieved with ERFB/BB ammunition's with 2078 square meters lethal zone compared to 27 km standard range and 630 square meters lethal area for the original M-46 130mm gun. NORA A1 Lightweight variant with 155mm 39 caliber barrel and high rate of fire(8 rpm), new counter-recoil