Indonesia acquires 57 mm naval gun for KCR-60M vessel
- The Indonesian Navy is awaiting delivery of a 57 mm gun for its lead KCR-60M vessel
- Service is also considering acquisition of Russian-made A-220M cannons for further boats in the class
Indonesia has acquired a new Bofors 57 Mk 3 naval gun system from BAE Systems for its first KCR-60M missile attack craft, KRI
Sampari (628).
The naval gun will be installed on the platform in the primary position, a TNI-AL source informed
Jane’s in late-January 2018. This information has since been corroborated with officials from state-owned shipbuilder PT PAL in Surabaya, who are involved in the weapon’s procurement.
The 57 mm gun will replace a 40 mm cannon from Bofors. This weapon type is currently installed across all three ships in the KCR-60M class. The older weapons were salvaged from the decommissioned landing ship tank (LST) vessel, KRI
Teluk Semangka , as an interim measure to provide the KCR-60M class with a naval gunfire support capability.
Indonesia currently operates a fleet of three KCR-60M vessels that were commissioned between May and September 2014, and is anticipating its fourth vessel from PT PAL. The 59.8 m boat has been designed with weight considerations for a 57 mm naval gun in the forward position, but a lack of funds has hampered the procurement of this intended weapon system since 2014.
The KCR-60M is powered by two MTU 20V 4000M73L diesel engines, and can reach a top speed of 28 kt and a standard range of 2,400 n miles (4,444 km) at 20 kt.
http://www.janes.com/article/77516/indonesia-acquires-57-mm-naval-gun-for-kcr-60m-vessel
A 220 M Sovyet, we had plenty commonality with S 60 type cannon on Parchim class and the army.
DEFENCE PRODUCTS / 57-mm А-220М NAVAL ARTILLERY SYSTEM:
This 57-mm automatic rapid-fire naval gun is an upgraded version of А-220 naval gun. It has successfully passed extended trials and is recommended for service introduction.
А-220М is a multipurpose system designed to engage air, surface and coastal targets. It may be installed on surface ships with the displacement of 250 ton and more such as missile boats of 205/ 20970 projects and others.
Main technical data
Rate of fire, rpm
300
Maximum firing range, km
- vertical
- horizontal
up to 8
up to 12
Elevation, degree
-10 to +85
Training, degree
±180
Number of ready-to-fire rounds
400
Weight, t
6
Dimensions, mm
- line-of-fire height above balancing ring
- turning radius at zero elevation
- gun height above deck (above balancing ring plane)
- deck hole diameter for gun installation (barbette inner diameter)
- the height of under deck compartment (for gun installation)
1025
4270
1795
3000
3060
The gun operates at the ambient temperature from -40° С to +50° С provided the ship's speed is below 45 knots.
The naval gun consists of:
- an automatic gun unit comprising a barrel and a breech with a wedge breechblock and a cradle. Integrated with the cradle, there are a cross-feed mechanism, a rammer, a trigger, an empty case extractor, recoil and counterrecoil brakes and a barrel-cooling system;
- a carriage with an artillery unit, an ammunition feed mechanism and quick electrohydraulic actuators with gun laying systems and hydraulics;
- a magazine with a double-lead screw for ammunition storage and feed. The magazine is attached to the collector in the bottom part of the carriage;
- a cupola made of aluminium alloy;
- a fire control panel interfacing the artillery mount with any fire control system that provides total laying angles;
- an automatic command and control system.
А-220М gun fires case ammunitions developed for S-60 with 53-UOR-281U HE projectiles.
There are 400 rounds in the magazine; the rest munitions can be stored in special racks under the deck. The munitions are fed from the magazine by the feed screw through a transferring mechanism to the collector connected with the vertical elevator. From the elevator receiver the munitions are transferred to the harp transporter of the gun unit. Coming to the last position on the transporter, the ammunition descends to the ramming line. Then the round is rammed and fired.
The feeding mechanisms of the gun oscillating mass are recoil-operated. The transfer of rounds from the magazine to the oscillating mass receiver is power-driven. Empty cases are ejected into the gun under-turret area. Ammunitions are reloaded to the magazine between firing activities.
The gun's Automatic Command and Control System provides the means of control required for the gun preparation for combat operation and firing as well as continuous diagnostics of the gun system and status data transferring. It also allows the operators training without activating the main gun mechanisms.
The power is supplied to the gun from the ship's electric system:
- power equipment – 3-phase, 380 V, 50 Hz;
- switching, alarm and fire circuits – 27 V DC.
Consumed power = 14 kW. The cooling system uses sea water under pressure 5.5 – 8.0 kgf/cm², the flow-rate = 5.3 ltr/s.
At Customer request, Burevestnik JSC can manufacture and customize А-220М artillery mount for installation on various ships. We also offer А-220М modification for air defense facilities.
https://www.burevestnik.com/products_engl/1.html
Afghan President Ashraf Ghani and Jokowi inspect the guard of honor at the presidential palace in Kabul. (Reuters Photo/Massoud Hossaini)
The presidents shake hands in front of the palace. (Reuters Photo/Massoud Hossaini)
Afghan presidential palace employees prepare for Jokowi to get off the plane at the Kabul airport. (Reuters Photo/Massoud Hossaini)
Afghan girls and boys wave flags for Jokowi. (Reuters Photo/Massoud Hossaini)
Ghani and Jokowi enter the presidential palace. (Reuters Photo/Massoud Hossaini)
An Afghan girl holds an Indonesian flag in front of the palace. (Reuters Photo/Massoud Hossaini)
