bofors 57/l70 mk.3 mk.110 gun - seaforces online

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Surface Vessel Weapon System
Bofors 57mm/70-caliber naval gun
(Bofors 57/L70 Mk.1, Mk.2, Mk.3 | US BAE Systems Mk.110 Mod.0 57mm gun)
  

bofors 57/l70 mk.3 mk.110 57mm naval gun system bae systems frigate corvette littoral combat ship lcs navy 22x

  
Bofors 57 mm Naval Automatic Gun L/70 (Swedish: 57 mm sjöautomatkanon L70 / 57 mm SAK 70), among other names, is a series of dual-purpose naval guns designed and produced by the Swedish arms manufacturer AB Bofors (since March 2005 part of BAE Systems AB), designed in the late 1960s as a replacement design for the twin barreled Bofors 57 mm Naval Automatic Gun L/60. The gun is remotely controlled by a fire-control computer but can as a redundancy measure however also be operated manually by crew using instrument panels either on or in direct contact with the gun.

The gun has been upgraded and improved several times:

Mk.1
The baseline Mark 1 variant began production in 1970 and was initially used to equip smaller coastal patrol craft and fast attack craft.

Mk.2
The improved Mark 2 variant came in 1981 and drastically lowered the weight as well as introduced new servo stabilizers.

Mk.3
The improved Mark 3 variant came in 1995 and primarily features the ability to use programmable ammunition.

Design and development:
The Bofors 40 mm L/60 anti air gun (1.6 inch) was one of the most popular naval anti-aircraft guns during World War II, used long after the war in a variety of roles. However, as jet aircraft became more prevalent in the post-war era, it was clear the gun did not have the rate of fire needed to effectively deal with these threats. Flying at speeds close to 1,000 kilometres per hour (620 mph), a jet aircraft flew through the effective range of the Bofors 40 mm gun in too short a time for the gun to fire enough rounds to ensure a hit.

Bofors' engineers considered two solutions to the problem. One was to greatly increase the firing speed of the 40 while also incorporating any minor changes that would improve its range. This produced the 40 mm L/70, which remains popular to this day. The other was to design a larger weapon with much greater effective range and a larger explosive load that offset a lower firing rate. This eventually resulted in the single-barreled Bofors 57 mm Automatic A.A. Gun L/60 and twin-barreled Bofors 57 mm Naval Automatic Gun L/60 in 1950. The 57 mm L/60 systems were however far from ideal; they had a low rate of fire and were very big and heavy, especially the twin-barrel system. Due to the ever improving performance of jet aircraft, a new and improved base design was needed by the late 1960s. The focus of the new design was to increase velocity, range and firing rate. This design became the 57 mm Naval Automatic Gun L/70.

Mark 1:
The baseline version of the new gun, later known as the Mark 1, used a cartridge with the same case-length as the cartridge on the 57 mm Naval Automatic Gun L/60 (57 mm x 438 mm) but with a new shape and propellant, giving it an increased velocity of 1,025 m/s (3,360 ft/s), compared to 890 m/s (2,900 ft/s) on the L/60 cartridge. Fire rate was also higher on the L/70 design: 200 rounds per minute, compared to 130 rounds per minute per barrel on the 57 mm L/60-design. The Mark 1 gun mount featured a 40-round magazine and a further 128 rounds were stowed inside the Mark 1 turret. Aiming operation was performed by a new electro-hydraulic system for rapid training and elevation.

The 57 mm L/70 Mark 1 was introduced into the Swedish Navy in 1971 as the 57 mm automatpjäs 7101 (57 mm apj 7101) on the Norrköping-class missile boat fast attack craft, also known as the Spica-II-class. It featured two ammunition hoists. A second variant designated 57 mm apj 7102 was introduced in 1972 on the HMS Jägaren (V150) patrol boat. It was similar to the 7101 but featured only a single ammunition hoist. Besides Sweden, the Mark 1 also saw adoption with Finland, Malaysia, Norway, Indonesia, Singapore and (the former) Yugoslavia.

Mark 2:
The Mark 2 was an improved variant of the gun designed in 1981. It featured a slightly higher rate of fire of 220 rounds per minute, had a lighter weight, and utilized a new servo drive/servomechanism system which compensates for barrel oscillations during firing, increasing the hit probability. According to Bofors, the new servo system allowed the Mark 2 to be both accurate and agile enough for use against sea skimming anti-ship missiles and that it could put more explosives into a surface target within a thirty-second window than any naval gun with a calibre smaller than 100 mm (3.9 in). The Mark 2 gun is fitted with a 40-round ready-use gun-magazine with four vertical 10-round compartments. There are also cassettes inside the mounting for 80 more ready to use rounds (120 rounds total in the mounting). Ammunition is hoisted manually into the mounting using two manual-hoists which feeds from the ammunition-room below the mounting. Bofors claims that with 120 ready rounds the system can sufficiently engage 1 to 2 surface targets and 4 sea skimming missiles.

To remove weight from the design, the Mark 2 variant omitted the water-cooling used on the Mark 1. This meant a lighter barrel and gun mount. According to Bofors, water-cooling was not needed for the modern missions the Mark 2 was used for. Bofors even recommended that watercooling be removed from older mountings. The Mark 2 gun barrel was also forged from monobloc steel to help with heat-wear from the lack of water-cooling. The Mark 2 mounting originally also had room for a gun operator, however, the compartment was too narrow for practicality and the wind-shield proved to be a source for radar-reflections, and was quickly replaced by a TV-camera.


The 57 mm L/70 Mark 2 was introduced into the Swedish Navy in 1985 as the 57 mm automatpjäs 7103 (57 mm apj 7103) on the Stockholm-class corvette - HSwMS Stockholm (sister ship HSwMS Malmö was built in 1984 but armed with the older Mk.1, subsequently retrofitted with the Mk.2 in 2009). An improved version designated 57 mm automatpjäs 7103B (57 mm apj 7103B) was introduced in 1990 on the Göteborg-class corvette. Beyond Sweden the Mark 2 also saw adoption by Canada and four other navies. Bofors has manufactured a total of about 25 Bofors 57 mm L/70 Mark 2 guns.

Mark 3:
The latest development of the gun is the Mark 3, designed in 1995 for use on the then planned Visby-class corvette. The Mark 3 system has kept the same rate of fire and ammunition capacity as the previous Mark 2 system but has added a ton of features to make it a modern system. Some of the primary changes includes: the ability to use Bofors 3P all-target programmable ammunition, the addition of a small muzzle velocity radar housed in a radome externally above the gun barrel for measuring the muzzle velocity of the departing projectiles for fire-control purposes, usually but not necessarily with the new Bofors 57 mm 3P ammunition, the ability to instantly change ammunition types by the use of a dual-feed system, another 1,000 rounds stowed in the standby rack beneath deck, as well as an improved fire control system. The Mark 3 system can also be operated/fired manually without the FC system using a joystick and video camera (mounted on the gun). The camera is fitted as standard.

For the Visby-class corvette Bofors also developed a new optional low radar profile (also known as low radar cross-section, or RCS) stealth mounting (also known as a cupola), which allows the gun to be hidden from radar and plain sight when not in use. The stealth mount/cupola is made of carbon-fibre-reinforced polymer and has a very distinctive angular, low signature.

The Bofors 57 mm SAK L/70 Mk.3 was introduced into service with the Visby-class corvette - fitted on HSwMS Visby in the year 2000. It has since also been adopted by a variety of nations, such as Finland and the United States. In American service, the United States Navy has designated the Mark 3 as the Mark 110 Mod 0 57mm gun. According to a BAE Systems press release dated 1 August 2005, the Mark 110 would be manufactured at the BAE Systems facility in Louisville, Kentucky. BAE Systems has been awarded a contract by General Dynamics to provide two additional Mk.110 Naval Gun Systems for the Independence variant of the US Navy's (USN's) Littoral Combat Ship (LCS).


Ammunition:
Ammunition for the Bofors 57 mm gun is produced by Bofors, Sako Limited in Finland, SME Ordnance in Malaysia and Nammo in Norway.

In 2006, BAE Systems AB began to offer the Bofors 57 mm 3P all-target programmable ammunition, this allows three proximity fuzing modes as well as settings for time, impact, and armor-piercing functions. This increases the flexibility and effectiveness of the gun system, which has further reduced the reaction time of the gun and it is possible to choose ammunition mode at the moment of firing, giving it the ability to switch rapidly between surface targets, air targets, and ground targets.

In April 2015, BAE Systems unveiled a new round for the Mk 110 in the design stage called the Mk.295 Mod 1 Ordnance for Rapid Kill of Attack Craft (ORKA), made to achieve one shot kills of surface and air threats. Answering a U.S. Navy requirement for increasing the accuracy and efficiency of naval rounds, the ORKA leverages technology BAE Systems developed for larger 127 mm and 155 mm guided rounds, using a 4-canard actuation systems to guide the round. It is fitted with a multi-mode imaging semi-active seeker that can be guided through laser designation or autonomous targeting by downloading image of the target prior to firing; ORKA retains the 3P multiple fuzing modes.

In December 2015, the U.S. Navy revealed they were working on developing a guided 57 mm round for its Mk.110 guns on the Littoral Combat Ship and other Navy and Coast Guard ships.

On 22 August 2017 L3 Mustang Technology (part of L3Harris Technologies) announced the completion of the Critical Design Review (CDR) phase for the U.S. Navy's Mk.332 Mod 0 High-Explosive, 4-Bolt Guided (HE-4G) projectile. The round was developed from the Advanced Low Cost Munitions Ordnance program. It is intended for use on the LCS and the new fast Frigate, and the US Coast Guard's Legend and Heritage class cutters.

Ammunition (US service):
The 57mm Mk.295 ammunition is based on the Bofors Defence all-target Programmable, Pre-fragmented, Proximity-fuzed (3P) ammunition. The Mk-295 ammo has six operating modes, each programmable by the fire control system to combat all surface, air and shore threats.

They include:
Proximity (Air)
Gated Proximity (Air, Anti-jamming)
Gated Proximity with Impact Priority (Air, Large Targets)
Precision Time (Surface)
Armor Piercing (Surface and Shore)
Impact (Shore)

This increases the flexibility and effectiveness of the gun system, which has further reduced the reaction time of the gun and it is possible to choose ammunition mode at the moment of firing, giving it the ability to switch rapidly between surface targets, air targets as well as ground targets.

Air burst capabilities permit the engagement of concealed targets, small, fast-maneuvering naval craft and anti-ship cruise missiles.

Known as Rapid Switchover for Maritime Intercept Operations (MIO), this all-target ammunition enables the gun to fire warning shots, step up to disabling fires, then instantly switch to lethal fires if required to slow, stop or destroy a vessel of interest.


Variants:
 
Bofors 57 mm SAK L/70 Mk.1
Baseline version from 1970. 200 rounds per minute rate of fire, water-cooled.
- 57 mm automatpjäs 7101 (57 mm apj 7101) - Swedish navy version with two ammunition hoists.
- 57 mm automatpjäs 7102 (57 mm apj 7102) - Swedish navy version with one ammunition hoist.

Bofors 57 mm SAK L/70 Mk.2
Improved version from 1981. 220 rounds per minute rate of fire, lighter weight, new servo system, no water-cooling.
- 57 mm automatpjäs 7103 (57 mm apj 7103) - Swedish navy version for the Stockholm-class corvette.
- 57 mm automatpjäs 7103B (57 mm apj 7103B) - Swedish navy improved version for the Göteborg-class corvette.
- 57 mm allmålskanon Mk.2 - Post 2001 designation for the 57 mm apj 7103A and 7103B.

Bofors 57 mm SAK L/70 Mk.3
Improved version from 1996 based on the Mk.2. Ability to use programmable ammunition.
- 57 mm allmålskanon Mk.3 - Swedish navy stealth version for the Visby-class corvette.
- 57 mm allmålskanon Mk.3B - Swedish navy version. 57 mm allmålskanon Mk.2 modified to be able to fire Mk3 programmable ammunition.
- 57 mm Mark 110 Mod 0 Naval Gun System - Slightly modified Mark 3 offered for use by the United States Coast Guard in 2004
  and the United States Navy in 2006. The Bofors 57 mm programmable 3P ammunition is designated as Mark 295 Mod 0 in US service.


General Characteristics:
Manufacturer: Bofors Defence (1970-2000) / United Defense (2000-2005) / BAE Systems (2005- )
Caliber: 57mm (57mm/2.2 inches)
Barrel lenght: bore lenght = 3,99 meters / 157.09 inches (= 70 caliber)
Shell: 57x438mm
Range: 10.5 miles / 17 kilometers, max.
Rate of Fire: up to 220 rounds/minute (4 rounds per second)
Elevation: -10° to + 77° / maximum elevating speed: 44°/sec.
Train: unlimited / maximum train speed: 57°/sec.
Weight, complete without ammunition: 14960 lbs / 6800 kg
 
Ammunition Capacity: 120 ready-rounds in gun-mounting.
(up to 1000 rounds in the ship magazines ready to be loaded into the hoists when ordered, via two ammunition hoists)
Time for loading rounds: 3-4 minutes


Users:
 
Bofors 57mm Mk.2:
Canadian Navy Halifax class Frigates
Indonesian Navy Singa class Fast Attack Craft
Indonesian Navy Pandrong class Fast Attack Craft
Indonesian Navy Todak class Fast Attack Craft
Malaysian Navy Lekiu class Frigate
Swedish Navy Stockholm class Corvtte
Swedish Navy Göteborg class Corvette


Bofors 57mm Mk.3:
Brunei Navy Darussalam class OPV
Canadian Navy Halifax class Frigates (after HCM/FELEX refit)
Finnish Navy Hamina class Missile Boat
Finnish Navy Pohjanmaa class Corvette
Indonesian Navy Sampari class Fast Attack Craft
Malaysian Navy Maharaja Lela class Frigate
Mexican Navy Durango class OPV
Mexican Navy Oaxaca class OPV
Mexican Navy Reformador class Frigate
Mexican Navy Sierra class Corvette
Swedish Navy Visby class Corvette


Mk.110 Mod.0 Naval Gun System (US):
Freedom class LCS
Independence class LCS
Constellation class Frigate
Legend class Coast Guard Cutter
Heritage class Coast Guard Cutter


sources: wikipedia / US DoD / Försvarsmakten
 
images (Mk.2, Mk.3 and Mk.110)

bofors mk.3 57 mm 70-caliber gun visby class stealth corvette swedish navy 02
Bofors Mk.3 57mm gun in stealth casing aboard a Swedish Navy Visby class Corvette

bofors mk.3 57 mm 70-caliber gun visby class stealth corvette swedish navy 06
Bofors Mk.3 57mm gun in stealth casing aboard a Swedish Navy Visby class Corvette

bofors mk.3 57 mm 70-caliber gun visby class stealth corvette swedish navy 03
Bofors Mk.3 57mm gun in stealth casing aboard a Swedish Navy Visby class Corvette


bofors mk.3 57 mm 70-caliber gun hamina class missile boat finnish navy 05
Bofors Mk.3 57mm gun aboard a Finnish Navy Hamina class Missile Boat

bofors mk.3 57 mm 70-caliber gun hamina class missile boat finnish navy 04
Bofors Mk.3 57mm gun aboard a Finnish Navy Hamina class Missile Boat

bofors mk.3 57/l70 naval gun royal canadian navy halifax class frigate 41
Bofors Mk.3 57mm gun aboard a Royal Canadian Navy Halifax class Frigate

bofors mk.3 57/l70 naval gun royal canadian navy halifax class frigate 46
Bofors Mk.3 57mm gun aboard a Royal Canadian Navy Halifax class Frigate

bofors mk.3 57/l70 naval gun royal canadian navy halifax class frigate 43
Bofors Mk.3 57mm gun aboard a Royal Canadian Navy Halifax class Frigate

bofors mk.3 57/l70 naval gun royal canadian navy halifax class frigate 42
Bofors Mk.3 57mm gun aboard a Royal Canadian Navy Halifax class Frigate

bofors mk.3 57/l70 naval gun royal canadian navy halifax class frigate 49
Bofors Mk.3 57mm gun aboard a Royal Canadian Navy Halifax class Frigate

bofors mk.3 57/l70 naval gun royal canadian navy halifax class frigate 02
Bofors Mk.3 57mm gun aboard a Royal Canadian Navy Halifax class Frigate

bofors mk.3 57/l70 naval gun royal canadian navy halifax class frigate 48
Bofors Mk.3 57mm gun aboard a Royal Canadian Navy Halifax class Frigate

bofors mk.3 57/l70 naval gun royal canadian navy halifax class frigate 51
Bofors Mk.3 57mm gun aboard a Royal Canadian Navy Halifax class Frigate

bofors mk.3 57/l70 naval gun royal canadian navy halifax class frigate 50
Bofors Mk.3 57mm gun aboard a Royal Canadian Navy Halifax class Frigate

bofors mk.3 57/l70 naval gun royal canadian navy halifax class frigate 45
Bofors Mk.3 57mm gun aboard a Royal Canadian Navy Halifax class Frigate

bofors mk.3 57/l70 naval gun royal canadian navy halifax class frigate 47
Bofors Mk.3 57mm gun aboard a Royal Canadian Navy Halifax class Frigate


mk.110 mod.0 57mm naval gun bofors 57/L70 bae systems littoral combat ship lcs us navy independence class 12
BAE Mk.110 Mod.0 57mm gun aboard an US Navy Independence class Littoral Combat Ship - LCS

mk.110 mod.0 57mm naval gun bofors 57/L70 bae systems freedom class littoral combat ship lcs us navy 04
BAE Mk.110 Mod.0 57mm gun aboard an US Navy Freedom class Littoral Combat Ship - LCS

mk.110 mod.0 57mm naval gun bofors 57/L70 bae systems independence class littoral combat ship lcs us navy 28
BAE Mk.110 Mod.0 57mm gun aboard an US Navy Independence class Littoral Combat Ship - LCS

mk.110 mod.0 57mm naval gun bofors 57/L70 bae systems freedom class littoral combat ship lcs us navy 06
BAE Mk.110 Mod.0 57mm gun aboard an US Navy Freedom class Littoral Combat Ship - LCS

mk.110 mod.0 57mm naval gun bofors 57/L70 bae systems freedom class littoral combat ship lcs us navy 30
BAE Mk.110 Mod.0 57mm gun aboard an US Navy Freedom class Littoral Combat Ship - LCS

mk.110 mod.0 57mm naval gun bofors 57/L70 bae systems independence class littoral combat ship lcs us navy 35
BAE Mk.110 Mod.0 57mm gun aboard an US Navy Independence class Littoral Combat Ship - LCS

mk.110 mod.0 57mm naval gun bofors 57/L70 bae systems freedom class littoral combat ship lcs us navy 36
BAE Mk.110 Mod.0 57mm gun aboard an US Navy Freedom class Littoral Combat Ship - LCS

mk.110 mod.0 57mm naval gun bofors 57/L70 bae systems freedom class littoral combat ship lcs us navy 31
BAE Mk.110 Mod.0 57mm gun aboard an US Navy Freedom class Littoral Combat Ship - LCS

mk.110 mod.0 57mm naval gun bofors 57/L70 bae systems freedom class littoral combat ship lcs us navy 13
BAE Mk.110 Mod.0 57mm gun aboard an US Navy Freedom class Littoral Combat Ship - LCS

mk.110 mod.0 57mm naval gun bofors 57/L70 bae systems freedom class littoral combat ship lcs us navy 09
BAE Mk.110 Mod.0 57mm gun aboard an US Navy Freedom class Littoral Combat Ship - LCS

mk.110 mod.0 57mm naval gun bofors 57/L70 bae systems freedom class littoral combat ship lcs us navy 03
BAE Mk.110 Mod.0 57mm gun aboard an US Navy Freedom class Littoral Combat Ship - LCS

mk.110 mod.0 57mm naval gun bofors 57/L70 bae systems freedom class littoral combat ship lcs us navy 25
BAE Mk.110 Mod.0 57mm gun aboard an US Navy Freedom class Littoral Combat Ship - LCS

mk.110 mod.0 57mm naval gun bofors 57/L70 bae systems freedom class littoral combat ship lcs us navy 21
BAE Mk.110 Mod.0 57mm gun aboard an US Navy Freedom class Littoral Combat Ship - LCS

mk.110 mod.0 57mm naval gun bofors 57/L70 bae systems freedom class littoral combat ship lcs us navy 32
BAE Mk.110 Mod.0 57mm gun aboard an US Navy Freedom class Littoral Combat Ship - LCS

mk.110 mod.0 57mm naval gun bofors 57/L70 bae systems independence class littoral combat ship lcs us navy 29
BAE Mk.110 Mod.0 57mm gun aboard an US Navy Independence class Littoral Combat Ship - LCS

mk.110 mod.0 57mm naval gun bofors 57/L70 bae systems independence class littoral combat ship lcs us navy 20
BAE Mk.110 Mod.0 57mm gun aboard an US Navy Independence class Littoral Combat Ship - LCS

mk.110 mod.0 57mm naval gun bofors 57/L70 bae systems freedom class littoral combat ship lcs us navy 34
BAE Mk.110 Mod.0 57mm gun aboard an US Navy Freedom class Littoral Combat Ship - LCS

mk.110 mod.0 57mm naval gun bofors 57/L70 bae systems freedom class littoral combat ship lcs us navy 34a

mk.110 mod.0 57mm naval gun bofors 57/L70 bae systems freedom class littoral combat ship lcs us navy 27
BAE Mk.110 Mod.0 57mm gun aboard an US Navy Freedom class Littoral Combat Ship - LCS

mk.110 mod.0 57mm naval gun bofors 57/L70 bae systems freedom class littoral combat ship lcs us navy 40
BAE Mk.110 Mod.0 57mm gun aboard an US Navy Freedom class Littoral Combat Ship - LCS

mk.110 mod.0 57mm naval gun bofors 57/L70 bae systems independence class littoral combat ship lcs us navy 23
BAE Mk.110 Mod.0 57mm gun aboard an US Navy Independence class Littoral Combat Ship - LCS

mk.110 mod.0 57mm naval gun bofors 57/L70 bae systems freedom class littoral combat ship lcs us navy 05
BAE Mk.110 Mod.0 57mm gun aboard an US Navy Freedom class Littoral Combat Ship - LCS

mk.110 mod.0 57mm naval gun bofors 57/L70 bae systems independence class littoral combat ship lcs us navy 11
BAE Mk.110 Mod.0 57mm gun aboard an US Navy Independence class Littoral Combat Ship - LCS

mk.110 mod.0 57mm naval gun bofors 57/L70 bae systems freedom class littoral combat ship lcs us navy 26
BAE Mk.110 Mod.0 57mm gun aboard an US Navy Freedom class Littoral Combat Ship - LCS

mk.110 mod.0 57mm naval gun bofors 57/L70 bae systems freedom independence class littoral combat ship lcs us navy 33

mk.110 mod.0 57mm naval gun bofors 57/L70 bae systems freedom class littoral combat ship lcs us navy 16
BAE Mk.110 Mod.0 57mm gun aboard an US Navy Freedom class Littoral Combat Ship - LCS

mk.110 mod.0 57mm naval gun bofors 57/L70 bae systems us coast guard cutter 52

mk.110 mod.0 57mm naval gun bofors 57/L70 bae systems freedom independence class littoral combat ship lcs us navy 35a

mk.110 mod.0 57mm naval gun bofors 57/L70 bae systems freedom independence class littoral combat ship lcs us navy 10

mk.110 mod.0 57mm naval gun bofors 57/L70 bae systems  littoral combat ship lcs us navy control console 37
Mk.110 57mm gun control console aboard an US Navy Littoral Combat Ship - LCS

mk.110 mod.0 57mm naval gun bofors 57/L70 bae systems littoral combat ship lcs us navy control console 38
Mk.110 57mm gun control console aboard an US Navy Littoral Combat Ship - LCS

mk.110 mod.0 57mm naval gun bofors 57/L70 bae systems freedom class littoral combat ship lcs us navy live fire 24
BAE Mk.110 Mod.0 57mm gun aboard an US Navy Freedom class Littoral Combat Ship - LCS

mk.110 mod.0 57mm naval gun bofors 57/L70 bae systems independence class littoral combat ship lcs us navy live fire 19
BAE Mk.110 Mod.0 57mm gun aboard an US Navy Independence class Littoral Combat Ship - LCS

mk.110 mod.0 57mm naval gun bofors 57/L70 bae systems independence class littoral combat ship lcs us navy 39
BAE Mk.110 Mod.0 57mm gun aboard an US Navy Independence class Littoral Combat Ship - LCS



bofors mk.2 57/l70 naval gun royal canadian navy halifax class frigate 03
Bofors Mk.2 57mm gun aboard a Royal Canadian Navy Halifax class Frigate

bofors mk.2 57 mm 70-caliber gun göteborg class corvette swedish navy 02
Bofors Mk.2 57mm gun aboard a Swedish Göteborg class Corvette


mk.110 57mm naval gun system bofors 57/L70 bae systems frigate corvette littoral combat ship lcs navy 54



bofors mk.1 57/l70 naval gun royal swedish navy norrköping class fast attack missile craft 05
Bofors 57/L70 Mk.1 gun aboard the Royal Swedish Navy Norrköping class Fast Attack Missile Craft R142 HSwMS Ystad

bofors mk.1 57/l70 naval gun royal swedish navy norrköping class fast attack missile craft 07
Bofors 57/L70 Mk.1 gun aboard the Royal Swedish Navy Norrköping class Fast Attack Missile Craft R142 HSwMS Ystad

bofors mk.1 57/l70 naval gun royal swedish navy norrköping class fast attack missile craft 06
Bofors 57/L70 Mk.1 gun aboard the Royal Swedish Navy Norrköping class Fast Attack Missile Craft R142 HSwMS Ystad

bofors mk.1 57/l70 naval gun finnish navy pohjanmaa minelayer 03
Bofors 57/L70 Mk.1 gun aboard the Finnish Navy Minelayer Pohjanmaa

bofors mk.1 57/l70 naval gun finnish navy pohjanmaa minelayer 04
Bofors 57/L70 Mk.1 gun aboard the Finnish Navy Minelayer Pohjanmaa

bofors mk.1 57/l70 naval gun hugin class fast attack craft patrol vessel missile 10
Bofors 57/L70 Mk.1 gun aboard a Swedish Navy Hugin class Patrol Vessel

bofors mk.1 57/l70 naval gun hugin class fast attack craft patrol vessel missile 08
Bofors 57/L70 Mk.1 gun aboard a Swedish Navy Hugin class Patrol Vessel

bofors mk.1 57/l70 naval gun hugin class fast attack craft patrol vessel missile 09
Bofors 57/L70 Mk.1 gun aboard a Swedish Navy Hugin class Patrol Vessel

bofors mk.1 57/l70 naval gun 02
Bofors 57/L70 Mk.1 gun
 
 
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