105mm round

The T18 canister was apparently cylindrical. Information on this round is scant. The overall lengths varied because of the different projectiles and different fuzes:.

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Projectiles were painted for both identification and camouflage. HE and HE AT projectiles were yellow with black markings until Januarywhen they became olive drab with yellow markings. Chemical rounds including Smoke and Illumination had a gray body with colored identification markings: Two green bands for H, two red bands for CNS, one yellow band for smoke, and one white band for illumination. For all chemical rounds the lettering color was the same as the band.

The T18 projectile was probably black with white markings, like other canister rounds. In addition to color coding projectiles were painted with identifying words and designators that were meant to be rather obvious, as well as one that wasn't.

It isn't possible to manufacture projectiles within the narrow weight limits required for accurate fire, so rounds were weighed and grouped into weight zones. The zone was indicated by a series of small squares on the shell nose. One square would indicate a light shell, two a shell of standard weight, three or more a heavy one.

A crew would try to segregate their shells by weight so that the firing parameters would not need to be changed during a fire mission. Only the M1 HE and M60 chemical shells used weight zone markings. M1 HE with deep cavity for VT fuzes and supplemental charge. The same M14 cartridge case dimensions were used for all rounds. The cases were Steel cases were used for a time as a material conservation measure but brass cases were far more common. A number of fuzes were used with mm ammunition and most rounds were shipped with the fuzes installed and made safe with a wire bail through the firing mechanism.

The proximity or VT fuze became available in the fall ofbut its long length required special deep cavity shells. These could not be used with standard length fuzes so a "supplemental charge" filled the cavity for normal fuzes but could be removed for the installation of VT fuzes.

At the end of the war a hardened steel tip concrete-piercing CP fuze was developed to allow projectiles to penetrate hard materials before exploding. Neither the VT nor CP fuzes were issued with complete rounds.Beehive was a Vietnam war era anti-personnel round packed with metal flechettes fired from an artillery gun most popularly deployed during that conflict. Typically, artillery gunners fire using indirect firefiring at targets they cannot see by line of sight with information provided by a forward observer.

However, during the Vietnam War, there was a demand for a munition that could be fired directly at enemy troops, in cases where an artillery unit was attacked. The flechette rounds were developed under a contract administered by Picatinny Arsenal and let to the Whirlpool Corporation in April The contract was named the "Beehive Program" referring to the way the flechettes were compartmentalized and stacked, looking like the traditional image of a conical beehive.

It was commonly assumed by users in the service that the term referred to a supposed 'buzzing' sound its darts made when flying through the air. Green starshells were shot into the air prior to their use to warn friendly troops that such a round was being shot. Beehive rounds became less popular in the United States following Vietnam, with low-angle air burst techniques such as Killer Junior supplanting the use of Beehive.

From Wikipedia, the free encyclopedia.

Beehive anti-personnel round

Artillery round. This article is about Beehive anti-personnel ammunition. For other uses, see Beehive disambiguation. Categories : Ammunition Artillery operation Anti-personnel weapons. Hidden categories: CS1 maint: extra text: authors list Articles with short description Short description matches Wikidata All articles with unsourced statements Articles with unsourced statements from April Namespaces Article Talk. Views Read Edit View history. Help Learn to edit Community portal Recent changes Upload file.

Download as PDF Printable version.The weapon carriage is lightweight welded aluminum, mounted on a variable recoil mechanism. Sincethe Army acquired 1, M towed howitzers. Many of the more seasoned artillerymen did not want the old cannon replaced. Over the years they had become familiar with its every detail and were confident that it would not disappoint them in the clutch. These experienced artillerymen could offer some seemingly convincing reasons why the M was still the superior weapon: its waist-high breech made it easier to load; it had higher ground clearance when in tow; but most important, it was considerably less expensive than the M The new M was substantially lighter, weighing little more than 1.

Another major advantage of the M was that it could be traversed a full 6, mils ; the MA1 had a limited on-carriage traverse, which required its trails stabilizing legs to be shifted if further traverse was necessary. The M fires the same semi-fixed ammunition as the M, but its longer barrel 32 calibres versus 22 calibres on M allows a slightly higher muzzle velocity and thus enhanced firing range.

The maximum rate of fire is 10 rounds per minute for the first 3 minutes, with a sustained rate of 3 rounds per minute. A roller tire attached to the trail assembly of the M permits the weapon to be rotated 6, mils degrees around a firing platform, which provides the pivot for the weapon.

The panoramic telescope has a four power, fixed focus optical system, with mils field of view. It contains dry nitrogen gas to retard fogging and condensation. The parallax shield used during boresighting protects the lens. The trails are made of aluminum alloy.

They are a single box trail in wishbone shape, and serve three purposes: mobility; stability; and stowage of section equipment. The lunette is the towing pintle that allows the weapon to be connected to the vehicle. When towing, vehicle has a fixed or seized tow pintle; remove the lock plate located under the lunette. The drawbar has two positions: lowered for travel and raised for firing. There are two lifting brackets to connect slings to when the howitzer is being lifted by helicopter.

A third bracket is located on front yoke. The carriage handles are used by crew members to lifting and shifting the howitzer during loading, unloading, and emplacing the howitzer. The firing platform attaches to the howitzer lower carriage by using a socket and a locking handle. The eight holes are for the stakes needed to stake the howitzer in position. Platform stakes are issued in three sizes.

While the M is no longer in active use by the United States Army, having been replaced by the Mit is still in use by the National Guard. Seventeen M howitzers were deployed to Camp TajiIraq.

The th FA provided fire and conducted counter-fire missions in support of 39th BCT operations, an element of the 1st Cavalry Division. The th scavenged spare parts from nine M howitzers that were located in the Camp Taji Boneyard.

The gun was first used in the later stages of the Vietnam War and is still used in the ACU gunship. The Air Force decided to include it in Januarystarting installation on the third aircraft, then having the first two be retrofitted when guns become available; Ms will be pulled off retiring ACUs and put into the ACJs. The M is used in extremely limited roles by the United States Marine Corpsprimarily for firing salutes.Modelers who wish to make their own decals for boxes and tubes should find this useful for creating realistic markings.

The M2 mm howitzer was incorporated in the U. Army inventory in the early s as the primary divisional artillery weapon. Self-propelled and lightweight airborne versions were developed during WWII and the mm howitzer became the most produced U. During the war, One out of every five shells fired by the U. Army during the war was mm HE. It truly was THE most common round. The howitzer used "semi-fixed" ammunition where the projectile was loaded into the weapon with the metal cartridge case as a single round, but it could be separated to adjust the powder charge.

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The rounds were individually packed in fiber cardboard containers then packed in a variety of outer containers. Initially mm ammunition was packed in two-round wooden boxes, but switched to three-round bundles starting in Because of problems with damage to the ammunition and difficulties in handling the heavy bundles which weighed more than pounds in a "short" two-round wooden box weighing a mere pounds was introduced that packed projectiles and cartridge cases in separate fiber containers.

M101 howitzer

This added burdens at the firing site and risked loss of lot traceabilty so in early it was recommended that two-round "long" wooden boxes replace the bundles and short boxes. Despite the changeover, three-round bundles still appeared in ammunition supply catalogs as late as Finally, for shipment to tropical areas a single-round metal can was created and entered service in early Modeling the U.

Overview The M2 mm howitzer was incorporated in the U.Since the early 21st century, most NATO armies have centred on mm weapons as having a good compromise between range and destructive power whilst having a single calibre simplifies logistics; however some military forces have retained mm towed howitzers for their lightweight and portability. The lower power and shorter range of mm ammunition has led to its obsolescence in full-sized self propelled guns such as the American M and British Abbot.

From Wikipedia, the free encyclopedia. Redirected from mm. Common type of artillery and tank gun calibre. This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.

Retrieved 8 June Categories : Artillery Ammunition. Hidden categories: Articles with short description Short description is different from Wikidata Articles needing additional references from June All articles needing additional references. Namespaces Article Talk. Views Read Edit View history. Help Learn to edit Community portal Recent changes Upload file.

Download as PDF Printable version. Add links.The howitzer provides direct and indirect fire support to the forces deployed in combined arms operations.

Artillery illumination rounds.

The M is presently used by all regular Army infantry brigades in the 10th Mountain, 25th Infantry, 82nd Airborne and st Airborne Divisions. The howitzer also serves the rd Airborne Brigade and National Guard field artillery battalions. The US Army signed a production contract and a license agreement for the howitzer with Royal Ordnance in The Army received its first delivery in The first two improved MA2 production guns were delivered in April The successful deployment during the Falklands war led the US Army to induct the howitzer into their inventory.

The US Army purchased the license rights in to produce the howitzer by the name M The programme added a new low-temperature recuperator, an improved trail access cover, simplified tail light assembly and brackets to include a chronograph and battery computer system.

105mm round

It also increased the brake diameter and provided scope for improved interchangeability of spare parts, reduced maintenance and increased trail life. The howitzers upgraded under Block I were re-designated as the MA1.

It transmits propellant gases to the rear of the gun and also reduces auditory and non-auditory health hazards. The MA3 howitzer, an advanced version with a digital fire control system, allows soldiers to initiate firing and avoid return fire quicker. The howitzer is also installed with guided-precision system technology which allows it to discover its own geographical location.

M is lighter and has a more rapid rate of fire than its predecessor, the M The maximum rate of fire is six rounds per minute for the first two minutes. The sustained rate of fire is three rounds per minute for 30 minutes.

It has a standard firing range of 14,m and a maximum range of 19,m can be achieved with rocket-assisted shells. A standard crew of seven is needed to prepare the howitzer for firing. The M can be easily moved and rapidly deployed in the field to deliver optimum firepower with less combat weight.

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Continue Learn more.It was the standard U. Entering production init quickly gained a reputation for accuracy and a powerful punch. All of these qualities of the weapon, along with its widespread production, led to its adoption by many countries after the war.

Its ammunition type also became the standard for many foreign countries' later models.

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After World War I, the U. Army Ordnance Department studied various captured German mm-caliber howitzers and developed the mm Howitzer M on Carriage M A box trail carriage design the ME carriage and two other split trail designs the T1 and T2 were also developed, but the original split trail design was found superior after testing.

After being selected, the piece was standardized in December as the mm howitzer M1 on carriage M1. The Army had an intention to replace all 75 mm gun-howitzers in its divisional and non-divisional field artillery regiments with mm pieces, but a lack of appropriations stalled the idea and eventually forced it to be completely abandoned by ; a limited plan developed in envisioned re-equipping three regiments, but byonly 14 M1 howitzers had been manufactured.

A modified version of the M1 was trialed in which used semi-fixed ammunition instead of separate-loading ammunition. Since this development required a different breech block, the new piece was designated the mm howitzer M2 on carriage M1. The original M1 carriage had been designed for towing using horses rather than trucks, and a new carriage, the T5 M2was developed in and standardized in February The breech ring of the howitzer M2 was modified in March before large-scale production began, creating the mm howitzer M2A1 on carriage M2.

The weapon was heavy for its calibre but this was because the gun was designed to be durable. Thus the barrel and carriage could see great use and remain functional without wearing out.

105mm round

The U. The gun continued to see service in the Korean and Vietnam Wars. Though a similar model, the M howitzershared the same roles in battle, it never fully replaced the MA1. Today, the MA1 has been retired by the U. The Canadian Forces used the M2A1 as the C2 howitzer untilwhen a modification was made to extend its service life; it is now designated the C3. The changes include a longer barrel, a muzzle brakereinforced trails and the removal of shield flaps.

It remains the standard light howitzer of Canadian Forces Reserve units. France and the State of Vietnam used M2A1 howitzers during the First Indochina Waras did the Viet Minh guerilla forces they fought against, who were supplied with at least 24 by the People's Republic of Chinaalong with other captured American artillery pieces and mortars formerly operated by both Nationalist Chinese forces the Kuomintang military and US troops fighting in Korea.

In addition, the M has found a second use in the U. The M is used by a number of ski areas and state departments of transportation for long-range control work. M2 Howitzers are still in limited service in the Australian Army Reservebut are being replaced with millimetre 3.

Two M2 howitzers are still employed in providing the gun salute at Kristiansten Fortressin Trondheim, Norway.

105mm round

They are used for gun salute also at Rena and Setermoen. Five MA1 howitzers are owned by the Virginia Military Institute and are used for parades, evening retreat and other ceremonies. Note the tri-star wheel system and auxiliary drive system on the right trail leg. The propelling charge consisted of a base charge and six increments, forming seven charges from 1 the smallest to 7 the largest.

Use of M1 HE rounds prepared for the mm howitzer M3 same projectile and cartridge, but different propelling charge was authorized.

It was later changed to semi-fixed type with the standard cartridge, but with non-adjustable propelling charge.

For blank ammunition, a shorter Cartridge Case M15 with black powder charge was used. From Wikipedia, the free encyclopedia. Type of Howitzer. Canadian soldiers fire a high explosive round with a C3 howitzer in


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