Смотреть миниган (2016) в Full HD качестве ОНЛАЙН
History[ edit ] Background: Gatling later replaced the hand-cranked mechanism of a rifle-caliber Gatling gun with an electric motor , a relatively new invention at the time. Even after Gatling slowed down the mechanism, the new electric-powered Gatling gun had a theoretical rate of fire of 3,000 rounds per minute, roughly three times the rate of a typical modern, single-barreled machine gun.
Patent 502,185 on July 25, 1893. Of those, the best-known today is perhaps the Fokker-Leimberger , an externally powered 12-barrel rotary gun using the 7. American forces in the Vietnam War, which used helicopters as one of the primary means of transporting soldiers and equipment through the dense jungle, found that the thin-skinned helicopters were very vulnerable to small arms fire and rocket-propelled grenade RPG attacks when they slowed down to land. Although helicopters had mounted single-barrel machine guns, using them to repel attackers hidden in the dense jungle foliage often led to barrels overheating or cartridge jams.
Air Force rotary-wing crewman fires a minigun during the Vietnam War. The resulting weapon, designated M134 and known popularly as the Minigun, could fire up to 4,000 rounds per minute without overheating. The gun was originally specified to fire at 6,000 rpm, but this was later lowered to 4,000 rpm. Several larger aircraft were outfitted with miniguns specifically for close air support: By 1975, production of spare parts had ceased with the Army in possession of a large inventory.
By 1985, there were few spares left in the inventory. Around 1995, the 160th SOAR began acquiring spare miniguns. Industry had a difficult time reproducing parts according to the original blueprints, so models that were being procured were mechanically unreliable and mixed with the inventory of working spares, resulting in using a mixed batch of working and unreliable weapons.
The 160th was on the verge of dropping the Minigun from its inventory entirely, which would essentially have ended its service life in the U. The guns kept failing to shoot continuously, revealing that they were actually worn-out weapons. The company decided to fix the problems encountered, rather than simply putting the guns into storage.
This prompted Dillon to improve other design aspects including the bolt, housing and barrel. Between 1997 and 2001, Dillon Aero was producing 25—30 products a year. In 2001, it was working on a new bolt design that increased performance and service life. By 2002 virtually every component of the minigun had been improved, so Dillon began producing complete weapons with improved components. The guns were purchased quickly by the 160th SOAR as its standardized weapon system.
A hybrid of the two weapons resulted in the M134D-H, which had a steel housing and titanium rotor. Initially, mounts were only made for aviation systems. Then from 2003 to 2005, the Navy began mounting Dillon miniguns on specialized small boats. In Iraq, US Army Special Forces units on the ground were frequently engaged by opposition forces, so they mounted M134D miniguns on their vehicles for additional firepower.
After several engagements the attackers seemed to avoid vehicles with miniguns. Later the Special Forces units began concealing their weapons so opposition troops would not know they were facing the weapon; regular Army units did the opposite, creating minigun mock-ups out of painted PVC pipes tied together to resemble barrels to trick enemies into not attacking.
The optimum rate of fire was determined by Garwood to be around 3,200 rounds per minute rpm. The M134G is being produced with this firing rate as well as 4,000 rpm and the previous standard 3,000 rpm rate.
The electric drive rotates the weapon within its housing, with a rotating firing pin assembly and rotary chamber. Thus, as one barrel fires, two others are in different stages of shell extraction and another three are being loaded. The minigun is composed of multiple closed-bolt rifle barrels arranged in a circular housing. The barrels are rotated by an external power source, usually electric, pneumatic , or hydraulic. Other rotating-barrel cannons are powered by the gas pressure or recoil energy of fired cartridges.
A gas-operated variant, designated XM133 , was also developed. It fired over 3000 rpm but was not put into production. The USAF minigun variant has three versions, while the US Army weapon appears to have incorporated several improvements without a change in designation.
Produced by General Dynamics , this version has a slotted flash hider. The weapons on these systems feature a selectable fire rate of either 2,000 or 4,000 rpm.