AK-306 - 30-mm six-barreled automatic ship artillery mount (A-219). It is a means of self-defense of ships , it can be used to hit air targets at slant distances of up to 4,000 meters and light enemy surface forces at distances of up to 5,000 meters.
| AK-306 | |
|---|---|
| Production history | |
| Country of Origin |  the USSR |
| Manufacturer | Tulamashzavod |
| Manufactured, units | 125 |
| Service history | |
| It was in service |  USSR ,  Russian Navy |
| Characteristics of the instrument | |
| Brand gun | AO-18L |
| Caliber , mm | thirty |
| Initial projectile speed, m / s | 875 |
| Rate of fire shots per minute | 600 ... 1000 |
| Characteristics | |
| The total mass of AU, kg | 1100 |
| The radius of sweeping over the trunks, mm | 1660 |
| The angle of the trunk, ° | -12 / +88 |
| Maximum speed of vertical guidance, ° / s | 50 |
| Maximum speed of horizontal guidance, ° / s | 70 |
| Maximum firing range, m | 5000 m (sighting) |
| Reach height, m | 5000 m (sighting) |
| Calculation of the installation, pers. | 2 (located outside the installation) |
| Ammunition on the barrel | 500 |
Content
History
Due to the impossibility of placing the AK-630 with the Vympel OMS on small displacement ships, for ekranoplanes , air cushion ships, small displacement boats, as well as for ships mobilized in wartime, a lightweight installation was required shooting
Unit A-219 was designed at TsKBI SOO, chief designer - M. S. Knebelman. The A-219 unit was officially put into service under the symbol AK-306 by Order of the Minister of Defense No. 0125 of June 23, 1980. Production is mastered at Tulamashzavod , mass production has been conducted since 1978 (according to the drawings of the chief designer).
By January 1, 1986, the USSR Navy received 125 AK-306 units.
Construction
Externally, the AK-306 is almost the same as the AK-630. Ammunition, ballistics, the internal structure of the barrel, belt feeding system, ball epaulet and much more was taken from it. The principal difference is that the AK-306 has a six-barrel automatic machine, the AO-18L, in which the barrel assembly is rotated not by a gas engine, but by an external electric drive that operates on AC power . Rotation from the motor shaft is transmitted through an electromagnetic clutch and gear reducer to the barrel assembly.
Sending ammunition into the barrel , locking the bore and extraction of liners are ensured by bolts, which, when the barrel block rotates, receive reciprocating motion along the guides of the central star, due to the fact that their driving rollers roll along the closed slot of the copier. The feed of the cartridge belt is produced by a feed star mounted on the feed shaft, kinematically connected with the block of barrels. There are 500 rounds in the tape. Due to the sharp decrease in the rate of fire from 5000 shots / min. up to 600 ... 1000 shots / min. AK-306 abandoned the water cooling system of the shafts.
The fairing installation is a cap made of fiberglass . Remote guidance from the systemPUS associated with the OPU-1 optical sight and the Lazur optical sighting station (there is no distance measurement to the target, a ballistic computer, an aiming line stabilizer). All the large parts of the installation and the actuators of the guidance are made of aluminum alloys, plastics and low-magnetic steel , thanks to which the installation was produced in one version - low-magnetic.
Media
- Border guard ships of the project 1248 "Mosquito" , Border guard ships of the project 1249 , as well as some of the project 745P (PSKR Don, PSKR Victor Kingisepp, PSKR Tver),
- Landing craft air-cushion project 1238 "Killer Whale"
- Landing craft on an air cushion project 12061 "Moray"
- Small artillery ships project 21630 "Buyan"
- Corvettes Project 20386
- Project 864 reconnaissance ships
- Sea minesweeper project 02668
- Mine-sweepers of project 12700 “Alexandrite”
- Project 10750 minesweepers
- Minesweeper project 1265
- Transports project 1595 "Dvina"
TTX
- Cartridge: 30 × 165 mm
- Rate of fire: 1000 shots / min.
- Queue length, max .: 250 shots.
- Queue length, min .: 1 ... 3 shots
- Max. firing range: 5000 m
- Ammunition: 500 in the store + 1000 in the bunker
- Elevation angle: 85 °
- Angle of decline: 12 °
- Mass of art installation: 1100 kg
- Power supply by cartridges: continuous, tape
- Initial speed: 875 ± 25 m / s
- Armament: 30-mm six-barreled automatic machine AO-18L
Literature
- Shirokorad A.B. Chapter 4. 30-mm six-barrel automatic installation AK-306 (A-219) // Weapons of the domestic fleet, 1945-2000. - Harvest, 2001. - p. 212. - 654 p. - ISBN 985-13-0183-3 .