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Encyclopedia > M109 howitzer
M109 Howitzer

M109 self-propelled howitzer of the Royal Netherlands Army
Type Self-propelled artillery
Place of origin Flag of the United States United States
Specifications
Weight 27.5 tons
Length 30 ft (9.1 m)
Width 10.3 ft (3.1 m)
Height 10.7 ft (3.3 m)
Crew 8 (Gun Commander, Driver, 6 x Gunners)

Rate of fire 4 round/min maximum, 1 round/min sustained
Effective range 18,000 m - 30,000 m (with rocket-assisted projectile)

Primary
armament
M126 155 mm Howitzer
Secondary
armament
.50 caliber (12.7 mm) M2 machine gun
Engine diesel
Suspension torsion-bar
Operational
range
216 mi (350 km)
Speed 35 mph (56 km/h)

The M109 is an American-made self-propelled 155 mm howitzer, first introduced in the early 1960s. It has been continually upgraded and improved to today's current version, the M109A6 "Paladin" which is only used by the US Army. The US still maintains a number of M109A5's in its forces. The M109 family is the most prevalent western indirect-fire support weapon of maneuver brigades of armored and mechanized infantry divisions.. Image File history File links M190_houwitser. ... A U.S. M109A6 Paladin self-propelled howitzer Self-propelled artillery (also called mobile artillery or locomotive artillery) vehicles are a way of giving mobility to artillery. ... Image File history File links This is a lossless scalable vector image. ... (for paintball markers also)Rate of fire is the frequency at which a specific weapon can fire or launch its projectiles. ... This article is about the . ... A torsion spring is a ribbon, bar, or coil that reacts against twisting motion. ... A U.S. M109A6 Paladin self-propelled howitzer Self-propelled artillery (also called mobile artillery or locomotive artillery) vehicles are a way of giving mobility to artillery. ... 19th century 12 pounder (5 kg) mountain howitzer displayed by the National Park Service at Fort Laramie in Wyoming, USA A howitzer is a type of artillery piece that is characterized by a relatively short barrel and the use of comparatively small explosive charges to propel projectiles at trajectories with... The United States Army is the largest and oldest branch of the armed forces of the United States. ... In the context of warfare, direct fire means aiming through a sight directly at the target. ...


The British Army replaced its M109s with the AS-90. Several European armies have or are currently replacing older M109s with the German PzH2000 which significantly outperforms it in many aspects. Significant upgrades to the M109 have been introduced by the US (see variants below) and Switzerland (KAWEST). With the cancellation of the Crusader Program in the US, the Paladin will remain the principal self-propelled howitzer of the United States for a few more years, until the NLOS-C from the U.S. Army's Future Combat Systems program comes online in 2008-2010. The AS-90 (Artillery System for the 1990s) is a lightly-armoured self-propelled artillery piece used by the British Army. ... The Panzerhaubitze 2000 (English. ... The XM2001 Crusader was to be the United States Armys next-generation self-propelled howitzer (SPH), designed to improve survivability, lethality, mobility, and effectiveness and planned to be introduced by 2008. ... The BAE Systems Land and Armaments Non-Line-of-Sight Cannon (NLOS Cannon) is intended to provide improved responsiveness and lethality to the Unit of Action (UA) commander as part of the US Armys Future Combat Systems project. ... Future Combat Systems (FCS) is the core building block of the US Army’s Future Force. ...


The crew of the M109 consists of a section chief, driver, three gunners who prepare the ammunition, load, and fire the weapon, and two gunners who aim the cannon. The gunner aims the cannon left or right (deflection), the assistant gunner aims the cannon up and down (quadrant). The M109A6 Paladin needs only one gunner and two ammunition handlers for a total crew of six. Gunner refers to a rank in the Royal Artillery, or can refer to anyone whose main job is to operate a gun. ...

Contents

History

The M109 was the medium variant of a US Program to adopt a common chassis for its self-propelled artillery units. The light version, the M108 howitzer, was phased out during the Vietnam war, many of which were rebuilt as M109s. An M108 self-propelled howitzer in Vietnam. ...


The M109 saw its combat debut in Vietnam. Israel used the M109 in the war against Egypt in 1973 and in the Lebanon wars of 1982 and 2006. Iran used the M109 in the Iran-Iraq war in the 1980s. The M109 saw service with the British Army, the Egyptian Army and Saudi Arabian Army in the Gulf War of 1991. The M109 saw service with the US Army in both wars against Iraq (1991 and 2003). The British Army is the land armed forces branch of the British Armed Forces. ... The Egyptian Army is the largest service within the Egyptian military establishment. ... For other uses, see Iraq war (disambiguation). ... Year 1991 (MCMXCI) was a common year starting on Tuesday (link will display the 1991 Gregorian calendar). ... Year 2003 (MMIII) was a common year starting on Wednesday of the Gregorian calendar. ...


Upgrades to the cannon, ammunition, fire control, survivability, and other electronics systems over the design's lifespan have vastly expanded the system's capabilities (see variants). Some of these capabilities include tactical nuclear projectiles, cannon launched guided projectiles (CLGP or Copperhead), rocket assisted projectiles (RAP), scatterable mines (FASCAM), and improved conventional munitions (DPICM). The W48 was an American Nuclear artillery shell, fired from a standard 155 mm (6. ... The M712 Copperhead is 155mm cannon-launched, fin-stabilized, terminally optically-guided explosive projectile intended to engage hard point targets such as tanks, SP howitzers or other high-value targets. ... A Dual-Purpose Improved Conventional Munitions (DPICM) is an artillery or surface-to-surface missile warhead designed to burst into sub-munitions at an optimum altitude and distance from the desired target for dense area coverage. ...


Armament

Open breech of M109A5 howitzer.
Open breech of M109A5 howitzer.

Image File history File linksMetadata Size of this preview: 800 × 600 pixel Image in higher resolution (1024 × 768 pixel, file size: 267 KB, MIME type: image/jpeg) Breech end of M109A5 howitzer tube (M284 type). ... Image File history File linksMetadata Size of this preview: 800 × 600 pixel Image in higher resolution (1024 × 768 pixel, file size: 267 KB, MIME type: image/jpeg) Breech end of M109A5 howitzer tube (M284 type). ... This article is about the . ... Mk19 40mm grenade launcher MK-19 40mm grenade launcher during MIL-EX 2003 The MK19 (also known as MK-19, M19, Mark 19, or Mk 19) is a belt-fed grenade machine gun capable of firing five grenades per second. ... For other uses, see M60. ... The M240, formally United States Machine Gun, 7. ...

Variants

M109

M109 enters South Vietnam.
M109 enters South Vietnam.

First produced in 1963, with 155 mm M126/A1 gun in the M127 Howitzer Mount, 28 rounds of 155 mm were carried. Also armed with a .50cal M2HB machine gun mounted, and 500 rounds of .50cal ammunition. Image File history File links Self-propelled-howitzer-vietnam. ... Image File history File links Self-propelled-howitzer-vietnam. ... Anthem Thanh niên Hành Khúc (Call to the Citizens) Capital Saigon Language(s) Vietnamese Government Republic Last President¹ Duong Van Minh Last Prime minister Vu Van Mau Historical era Cold War  - Regime change June 14, 1955  - Dissolution April 30, 1975 Area  - 1973 173,809 km² 67,108... This article is about the . ...


M109A1/A1B

Replaced M126 with longer barreled M126A1 gun for greater effective range. Same M127 mount and ammunition amounts carried. A more recent model, intended for export incorporated more recent improvements into a new production M109A1. These vehicles were designated M109A1B.


M109A2

Incorporated 27 Reliability, Availability, and Maintainability (RAM) mid-life improvements. Most notably, the long barreled 155 mm M185 cannon in the M178 gun mount, ballistic protection for the panoramic telescope, counterbalanced travel lock, and the ability to mount the M140 alignment device. Stowage increased from 28 rounds of 155 mm, to 36 rounds, .50cal ammunition amount remain 500 rounds.


M109A3/A3B

M109A1s and M109A1Bs rebuilt to M109A2 standard respectively. Some A3s feature three contact arm assemblies while all A2s have five.


M109A4

M109A2s and M109A3s improved with Nuclear, Biological, and Chemical / Reliability, Availability, and Maintainability (NBC/RAM) improvements, including air purifiers, heaters, and Mission Oriented Protective Posture (MOPP) gear.


The traversing mechanism's clutch is now hydraulic, as compared to the electric mechanism on previous M109s, and features a manual override in the event of an electrical failure. The A4 also adds an additional hydraulic filter, for a total of two. Also included, is an improvement to the engine starting equipment, greatly improving the ability to start in an emergency.


Ammunition amounts remain the same as two previous models.


M109A5

Replaces M185 cannon in M178 mount with 155 mm M284 cannon in the M182 mount, giving the A5 even greater range than before.


M109A6 "Paladin"

M109A6 "Paladin" firing at night
M109A6 "Paladin" firing at night

Overall product improvement in the areas of Survivability, RAM, and armament. This includes increased armor, redesigned (safer) internal stowage arrangement for ammunition and equipment, engine and suspension upgrades, and product improvement of the M284 cannon and M182A1 mount. The greatest difference is the integration of an inertial navigation system, sensors detecting the weapons' lay, automation, and an encrypted digital communication system which utilizes computer controlled frequency hopping to avoid enemy electronic warfare and allow the howitzer to send grid location and altitude to the battery fire direction center (FDC). The battery FDCs in turn coordinate fires through a battalion or higher FDC. This allows the Paladin to halt from the move and fire within 30 seconds with accuracy equivalent to the previous models when properly emplaced, laid, and safed--A process that required several minutes under the best of circumstances. Tactically, this improves the systems survivability by allowing the Battery to operate dispersed by pairs across the countryside and allowing the howitzer to quickly displace between salvos, or if attacked by indirect fire, aircraft, or ground forces. Image File history File links Size of this preview: 800 × 471 pixelsFull resolution (1500 × 883 pixels, file size: 288 KB, MIME type: image/jpeg) File historyClick on a date/time to view the file as it appeared at that time. ... Image File history File links Size of this preview: 800 × 471 pixelsFull resolution (1500 × 883 pixels, file size: 288 KB, MIME type: image/jpeg) File historyClick on a date/time to view the file as it appeared at that time. ... // Electronic warfare (EW) is the use of the electromagnetic spectrum to effectively deny the use of this phenomena by an adversary, while optimizing its use by friendly forces. ... Calling in and Adjusting Artillery Fire on a Target In the land-based field artillery, the field artillery team is organized to direct and control indirect fire artillery fire on the battlefield. ...


On an operational level this weapons represents a dramatic improvement in the performance of field artillery. This improvement in performance is perhaps as great as that represented by the first self propelled artillery over the preceding towed artillery. This is because the howitzers no longer need to occupy fixed firing positions but may now move with the advancing combat forces. They need stop only when a target for their fires is identified. They will fire on that target and then resume their movement.


Ammunition stowage is increased from 36 rounds of 155 mm, to 39 rounds, .50cal ammunition amounts remain the same.


The M109A6-PIM is the latest upgrade and is fitted with some components of the canceled Crusader.

M109 "KAWEST"

Swiss improved version produced by Ruag incorporating a new Swiss designed L47 155 mm Gun, inertial navigation system coupled with a new fire control system and more ammunition storage. Crew is reduced from 8 to 6. Crews are trained to fire a burst of three rounds in 15 seconds. Technical modifications: Fire Power Increased firing range of up to 36 km, increased rate of fire (burst of 3 rounds in 15 sec.), increased ammunition autonomy ( 40 rounds, 64 charges). Reliability increased by: New electrical system (better than Mil STD 1245A, higher operational readiness, increased mean time between failures (MTBF), fault finding diagnostics with test equipment. Survivability increased by: Integrated inertial navigation and positioning system, increased mobility (gears, engine), day and night operations capabilities, effective fire suppression system installed, NEMP and EMP protection Camouflage: paint and netting. Upgraded Swiss PzHb (Panzerhaubitze) 79 and 88 (M109A1) are known as respectively PzHb 79/95 and PzHb 88/95.


M992

The Field Artillery Ammunition Supply Vehicle (FAASV) is built on the chassis of the M109-series. It replaces the M548 supply vehicle. Unlike the M548 it is armored. This ammunition vehicle has no turret and a taller superstructure to store 93 rounds and an equivalent number of powders and primers. There is a maximum of 90 conventional rounds, 45 each in two racks, and 3 M712 Copperhead rounds. Much of the remaining internal crew space is taken up by a hydraulically powered conveyor system designed to allow the quick uploading of rounds or transfer of rounds to the M109-series howitzer. Most early models had an additional mechanism called an X-Y Conveyor to lift the rounds into the honeycomb-like storage racks in the front of the superstructure. A ceiling plate above the two racks can be unbolted and opened to allow the racks to be winched out of the vehicle. This vehicle is fitted with a Halon fire suppression system and a weapons mount similar to that on the M109 turret, usually mounting a Mk 19 40 mm grenade machinegun for local defense against infantry and light armored vehicles. The latest models have a mounting point for two secure radios. Mk19 40mm grenade launcher MK-19 40mm grenade launcher during MIL-EX 2003 The MK19 (also known as MK-19, M19, Mark 19, or Mk 19) is a belt-fed grenade machine gun capable of firing five grenades per second. ...


The vehicle also contains a 2-stroke diesel powered auxiliary power unit (APU) that can power all non-automotive energy requirements on the FAASV and on the howitzer when a slave cable is used to connect the two. This reduces fuel consumption when mobility is not required.

FSCATT trainer.
FSCATT trainer.

Image File history File links Metadata Size of this preview: 800 × 600 pixelsFull resolution (1024 × 768 pixel, file size: 197 KB, MIME type: image/jpeg) 2007-02-14 04:41 KristoferM . ... Image File history File links Metadata Size of this preview: 800 × 600 pixelsFull resolution (1024 × 768 pixel, file size: 197 KB, MIME type: image/jpeg) 2007-02-14 04:41 KristoferM . ...

Training Systems

The US Army uses the Fire Support Combined Arms Tactical Trainer (FSCATT) in two versions for initial and sustainment training of the M109A6 and M109A5. The system uses an actual surplus turret and a simulated ammunition system.


The Swiss Army uses a highly advanced KAWEST trainer.


Operators

M109A1

Image File history File links Flag_of_Denmark. ... Image File history File links Flag_of_Greece. ... Image File history File links Flag_of_Kuwait. ... Image File history File links Flag_of_Libya. ... Image File history File links Flag_of_Oman. ... Image File history File links Flag_of_Peru_(state). ... Image File history File links Flag_of_Saudi_Arabia. ... Image File history File links Flag_of_Tunisia. ... Image File history File links Flag_of_Iran. ...

M109A2/A3

Image File history File links Flag_of_Belgium_(civil). ... Image File history File links Flag_of_Germany. ... is the 182nd day of the year (183rd in leap years) in the Gregorian calendar. ... Year 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD/CE era in the 21st century. ... The Panzerhaubitze 2000 (English. ... Image File history File links Flag_of_Greece. ... Image File history File links Flag_of_Egypt. ... Image File history File links Flag_of_South_Korea. ... Image File history File links Flag_of_Morocco. ... Image File history File links Flag_of_Norway. ... Image File history File links No higher resolution available. ... Image File history File links Flag_of_Portugal. ... Image File history File links Flag_of_Thailand. ... Image File history File links Flag_of_the_Netherlands. ... The Panzerhaubitze 2000 (English. ... Image File history File links Flag_of_Brazil. ... Image File history File links Flag_of_Chile. ...

M109A4

Image File history File links Flag_of_Belgium_(civil). ... Image File history File links This is a lossless scalable vector image. ...

M109A5

Image File history File links Flag_of_Greece. ... Image File history File links Flag_of_Egypt. ... Image File history File links Flag_of_Israel. ... Image File history File links Flag_of_Portugal. ... Image File history File links Flag_of_Spain. ... Image File history File links Flag_of_Thailand. ...

M109A6 Paladin

Image File history File links This is a lossless scalable vector image. ... Image File history File links Flag_of_the_Republic_of_China. ... For the Chinese civilization, see China. ...

Footnotes

  1. ^ Being phased out in 2007-2008 in favor of the PzH 2000 NL: Koninklijke Landmacht - "M109" (combat support material) (Dutch). Retrieved on 2006-08-24.

The Panzerhaubitze 2000 (English. ... Year 2006 (MMVI) was a common year starting on Sunday of the Gregorian calendar. ... is the 236th day of the year (237th in leap years) in the Gregorian calendar. ...

See also

M107 155mm shell, primed and ready for loading. ... A list of the worlds artillery, by type. ... Rocket launchers, grenade launchers, and machine guns FIM-92 Stinger FOTT Javelin M2 machine gun M242 Bushmaster Chain gun M19 (Mk19) Grenade launcher M37 M47 Dragon M60 machine gun M73 M85 M219 M220 TOW M240 M1919 OCSW Mortars M29 81 mm mortar M30 107 mm mortar M120 120 mm mortar...

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