AK-726

AK-726
AK-726 on a Krivak-class frigate
TypeNaval gun
Place of origin Soviet Union
Service history
In service1964–present
Production history
DesignerSoviet Union TsKB-7 (Leningrad)
Designed1958
Produced1962 to 1987–1988
Specifications
Massabout 26 t (26 long tons; 29 short tons)
Barrel length59 calibers
Crew9
Shell weight5.9 kg (13 lb)
Caliber76.2 mm (3 in)
Barrels2
BreechSliding wedge
Elevation−10° to +85°
Rate of fire2 × 40–45 RPM
Muzzle velocity980 m/s (3,200 ft/s)
Maximum firing rangeHorizontal: to 15,700 m (17,200 yd)
Vertical: 11,000 m (36,000 ft) to self-destruct

The AK-726 (abbr. of артиллерийский комплекс) is a twin 76-millimeter (3 in) naval gun, which was developed in the Soviet Union and is still in service in various navies.[1]

History

In 1954 the Soviet Union began development of a naval gun which could be used against both air and sea targets. The gun was developed by the development office TsKB-7 (later Arsenal Design Bureau) under the direction of Pyotr Tyurin. The first tests began in 1958. From 1960, the guns were begun to be installed on ships and tested. In 1962 the first gun was installed on the Groznyy cruiser. A second was installed on the Komsomolets Ukrainy destroyer. The system was officially launched on June 24, 1964. The guns were exported to various Eastern Bloc states over time. Due to the small caliber and lack of effectiveness they were soon replaced by the AK-100.[2]

Construction

The gun has two barrels of 76.2 mm (3 in) caliber. The projectiles are hand-loaded into an elevator from the ammunition chamber to the gun. The weapon has an automatic charging system. Both barrels fire simultaneously. This would achieve a theoretical rate of fire of about 100 rounds per minute, but is unsustainable. The barrels must be cooled a few minutes after 40 to 45 rounds of continuous fire. The cooling system is connected to the vessel's main water line.[3]

The fire control is carried out either automatically via a fire-control radar type MR-105 Turel (Russian: МР-105 «Турель», NATO code: Hawk Screech), semi-automatically with the Prisma optical sight, or manually. The gun can be used against air, sea or land targets. There are two different types of high-explosive ammunition available; contact and proximity fuzes.[4]

Platforms

References

  1. ^ "АК-726 - 76,2-мм спаренная корабельная артустановка". www.kchf.ru. Retrieved 2018-04-06.
  2. ^ DiGiulian, Tony. "Russia / USSR 76.2 mm/59 (3") AK-726 - NavWeaps". www.navweaps.com. Retrieved 2018-04-06.
  3. ^ "Mornaričko naoružanje AK-726". MyCity forumi. Retrieved 2018-04-06.
  4. ^ "On Target Alignment - AK-726". www.ontargetalignment.com. Archived from the original on 2018-04-07. Retrieved 2018-04-06.

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