Following the M230LF fielding in theatre in different roles the US military, which call it XM914, issued a Request for Information for additional M-LIDS (Mobile-Low, slow, small unmanned aircraft Integrated Defeat System) in which the Northrop Grumman chain gun finding is the hard-kill Counter-UAS effector. With a weight less than 73 kg without ammunition and a recoil force of less than 7,400 N, it can be fitted to many RCWS designed for hosting 12.7 mm heavy machine guns. The M230LF chain gun can shoot single shot, controlled burst, and full automatic, in the latter mote the firing rate reaching 200 rounds per minute, and provides a lethality range of over 2,000 meters. A 7.62x51mm NATO caliber chain gun is used on some armored vehicles as a coaxial machine gun, because of the inherently small amount of fumes from spent propellant discharged inside of the vehicle. A developmental version of this gun was named EX-34. It is in use as the L94A1 chain gun with the British Army. An interesting alternative configuration of the Seahawk DS A1 mount offered by MSI-DSL (Not in service with the RN). The Bushmaster is duel-fed with ammunition from left and right panniers. The gunner’s cabin is replaced by controls directly mounted on the gun, although the weapon is typically remotely controlled. Note the addition of angled panels to the mount intended to further reduce radar signature. Naturally I welcome the news that HMS Queen Elizabeth will receive her 30mm outfit before her first operational deployment later this year. The Northrop Grumman Bushmaster II Mk 44 30mm is part of a family of chain guns originally developed for armoured fighting vehicles but adapted for naval use. The gun itself weighs 154.6 kg and is 3.4m in length.

The linked rounds pass up from the pannier on the right through the flex chute to the receiver on the gun breech. The flexible chute allows the gun to elevate between -20º to +65º (HMS Sutherland, Oct 2011. Photo: Navy Lookout) Stop-gap: the BMARC GCM-AO3-2 mount for twin Oerlikon 30mm, each capable of 650 rpm. These were fitted across the fleet in the mid-late 1980s to replace the 40mm Bofors and provide better close in air-defence or until more Phalanx CIWS mounts were available. Yes, it certainly is supposed to be better- although not sure how much better than a 40 mm Bofors equivalent.During testing conducted by Hughes, the weapon proved extremely reliable, firing two 10,000 round bursts lasting 20 minutes at 500 rounds per minute. [2] It has a reported rounds between failure rate of approximately 50,000 rounds. Problems with the electrical systems in the Warrior IFV have caused the weapon to fire without warning several times, resulting in the army issuing a safety notice. In at least one incident, this has resulted in injury to a British soldier and in others injuries to civilians. [3] The MoD denied the problem initially. [4] The only multiple barrel firearm that could be described as a chain gun would be the Johnston machine gun as it uses a chain drive to rotate the barrels. a b "Trademark Assignment Abstract of Title". United States Patent and Trademark Office. 12 November 2018 . Retrieved 28 April 2019.

The 20mm Phalanx CIWS and the 30mm combination provides a formidable additional line of anti-aircraft defence. (HMS Duncan, 2018). As it was already alluded to, you can change the rate of fire of a chain gun by changing the amount of power going to the drive motor, this is a useful option when switching between ground and air targets. This can also be done with a conventional gun but its a pain in the ass to add artificial friction to the gun mechanism.The Mk.44 is a great weapon and it saddens me to see the Army not adopting it for their AFV fleet. I have spent the last 15 years working with chain guns of differing calibres and uses but they all look virtually identical on the inside. The L94A1 performs nearly identically to the L8A1 and FN MAG, having the same rate of fire and ballistic performance. As of 2019 [update], "chain gun" is a registered trademark of Northrop Grumman Innovation Systems (formerly Orbital ATK, following several mergers and acquisitions after Hughes Helicopters) for "externally-powered machine guns". [3] Design [ edit ]

Northrop Grumman is producing a 30mm x 113mm high-explosive proximity round that detects and detonates in proximity of a drone, defeating the threat without having to make a direct hit," explains McCollum. "If the round doesn't detect a target during flight, it self-destructs in the air at maximum range, protecting those on the ground. This makes the M230LF used in conjunction with proximity ammunition ideal for use against unmanned aerial threats." Losing Weight, Adding Stability and Safety How much money could the Army have saved for its woeful vehicle programmes by being more pragmatic? (Saying that I am still trying to fathom why the refurbished Warrior needs a cannon. Why not a RWS with a HMG and / or 40mm grenade launcher and no turret?) But we buy woeful Ajax instead……….Again as I often with naval matters I look to the wonderfully conducted Australian vehicle programmes. They will probably end up buying Lynx to compliment their Boxers… The mount has a modular central yoke which and it can be configured for use with cannons between 25-40mm. It is a highly flexible design that can be customised with different ammunition arrangements, gunner’s cabin, sights, sensors or co-mounted weapons such as small missiles or other light guns. MSI-DSL markets the mount as the ‘Seahawk DS’ family but this designation is not officially used by the RN which instead refers to the whole system as the Automated Small Calibre Gun (ASCG) or more commonly, “the 30mm”. Bolt operation. Probably the greatest benefit of a chain gun is the fact it can fire both open and closed bolt. You get the benefit of open bolt operation, better cooling and rate of fire or you can switch to closed bolt operation for more accurate fire.

The MK II will also be fitted to the Type 26 frigates, probably using refurbished mounts removed from Type 23s as they decommission. The Mk 1 mount is fitted to the Type 45 destroyers, the minehunters and some RFAs. Although there is space available, it seems unlikely the Type 31 frigates will be fitted with either 20 or 30mm cannons as they will have two automated Bofors 40mm Mk4 mounts. Vessel I remember reading how the small size of the ammunition would allow much more to be carried and thinking space due to cost would never ever be a problem. The Bofors 40mm L/60 on the electrically-powered Mark IX mount could fire up to 120 rounds per minute. This weapon entered service with the RN in 1941 and was still in widespread use in the 1980s. One of the mounts on either HMS Fearless or Intrepid managed to shoot down an Argentine A-4B Skyhawk during the Falklands war of 1982. (HMS Brazen, 1984). Gunners on a Type 21 frigate during the 1980s operating the same weapon used by their grandfathers in the war – the Oerlikon 20mm Mk 7A. This was a crude but reliable weapon with a rate of fire between 500-800 rounds per min. The cylindrical drum magazine was changed by hand. Because of its extremely high rate of fire, the Endless Musket Pouch should be used in regular combat to save more valuable shots for important boss fights.

The successor to the Mk7, the Oerlikon 20mm/85 KAA cannon GAM-BO1 mounting. In service since 1983, this simple, manually-aimed weapon has a rate of fire of up to 1,000 rounds per minute and remains in use, fitted to the LPDs, the survey vessels and Batch 1 OPVs. (HMS Chatham, 2010) I don’t know how much of an issue it really is, but I understand Nic Drummond to have fairly good information.Chinn, George M. (Lt.Col., USMC, Retd), ed. (1987). The Machine Gun: History, Evolution, and Development of Manual, Automatic, and Airborne Repeating Weapons (PDF). Vol.V. Ann Arbor, Michigan: Edward Brothers Publishing Co . Retrieved 19 March 2019. {{ cite book}}: CS1 maint: multiple names: editors list ( link) With the Rapid or Frenzying modifier, the Chain Gun will gain 25% speed. This happens due to rounding down its already exceptionally low use time (4 to 3). The Godly modifier is better for players preferring to save ammo, at the cost of slightly less damage. DPS for Godly: DPS=(36+bullet-roundup(def/2))*60/4*1.09. The DPS for Rapid: DPS=(31+bullet-roundup(def/2))*60/3*1.04. Links to the articles on the War Thunder Wiki that you think will be useful for the reader, for example: