Blogroll

Pages

M270 Multiple Launch Rocket System (Tank)

M270 Multiple Launch Rocket System (MLRS)
MLRS 05.jpg
M270 MLRS
Type Multiple rocket launcher
Place of origin  United States
Service history
In service Since March 31, 1983
Production history
Designer Vought Corporation
Designed 1977
Manufacturer Lockheed Martin, Diehl BGT Defence
Produced 1980–2003
Variants M270A1
Specifications
Weight 55,000 lb (24,950 kg)
Length 22 ft 6 in (6.85 m)
Width 9 ft 9 in (2.97 m)
Height 8 ft 6 in (2.59 m)
Crew 3
Rate of fire Rockets: 12 rounds in < 40 sec Missiles: 2 rounds in 10 sec
Main
armament		 M269 Launcher Loader Module
Engine Cummins Diesel
500 hp
Operational
range		 400 miles (640 km)
Speed 40 mph (64.3 km/h)

The M270 Multiple Launch Rocket System (M270 MLRS) is an armored, self-propelled, multiple rocket launcher; a type of rocket artillery.
Since the first M270s were delivered to the U.S. Army in 1983, the MLRS has been adopted by several NATO countries. Some 1,300 M270 systems have been manufactured in the United States and in Europe, along with more than 700,000 rockets. The production of the M270 ended in 2003, when a last batch was delivered to the Egyptian army.

Overview

The weapon can fire guided and unguided projectiles up to 42 km (26 mi). Firing ballistic missiles, (such as the U.S. Army Tactical Missile System—ATACMS), it can hit targets 300 km (190 mi) away; the warhead in such shots reaches an altitude of about 50 km (164,000 ft). The M270 can be used in shoot-and-scoot tactics, firing its rockets rapidly, then moving away to avoid counter-battery fire.
MLRS was developed jointly by the United Kingdom, United States, Germany, and France. It was developed from the older General Support Rocket System (GSRS). The M270 MLRS weapons system is collectively known as the M270 MLRS Self-propelled Loader/Launcher (SPLL). The SPLL is composed of 3 primary subsystems: the M269 Loader Launcher Module (LLM), which also houses the electronic Fire Control System, is mated to the M993 Carrier Vehicle. The M993 is a derivative of the Bradley Fighting Vehicle chassis.[1][2]
The rockets and ATACMS missiles are contained in interchangeable pods. Each pod contains six standard rockets or one guided ATACMS missile; the two types cannot be mixed. The LLM can hold two pods at a time, which are hand-loaded using an integrated winch system. All twelve rockets or two ATACMS missiles can be fired in under a minute. One launcher firing twelve rockets can completely blanket one square kilometer with submunitions. For this reason, the MLRS is sometimes referred to as the "Grid Square Removal Service"[3] (metric maps are usually divided up into 1 km grids). The U.S. Army is currently working on developing and fielding unitary (one large warhead instead of submunitions) rocket and ATACMS variants, as well as a guided rocket.
In 2006, MLRS was upgraded to fire guided rounds. Phase I testing of a guided unitary round (XM31) was completed on an accelerated schedule in March 2006. Due to an Urgent Need Statement the guided unitary round has already been fielded and used in action in Iraq.[4] Lockheed Martin also received a contract to convert existing M30 DPICM GMLRS rockets to the XM31 unitary variant.[5]
A German developmental artillery system, called the Artillery Gun Module, has used the MLRS chassis on its developmental vehicles.[6]

[edit] Service history

The M270 MLRS conducts a rocket launch.
MLRS-System with launch vehicle, loader and a command center inside an APC
When first deployed with the U.S. Army, the MLRS was used in a composite battalion consisting of two batteries of traditional artillery (howitzers) and one battery of MLRS SPLLs (self-propelled loader/launchers). The first operational organic or "all MLRS" battalion 6th Bn, 27th Field Artillery started training in the winter of 1984 at Ft. Sill, Oklahoma. Alpha Battery, 6/27th FA (MLRS) was deployed en masse to Peden Barracks at Wertheim, West Germany in April of that year. "Sudden Impact" as it was known by its members fired its first rounds in theater and was considered operational by June of that year. Three other firing batteries soon joined. A Btry 92nd Field Artillery (MLRS) Was deployed to the gulf war in 1989 from Ft.Hood Texas. 3/27th FA (MLRS) out of Ft. Bragg deployed in support of Operation Desert Shield in August 1990. A/21st Field Artillery (MLRS) - 1st Calvary Division Artillery deployed in support of Operation Desert Shield in September 1990. 6/27th FA (MLRS) deployed in support of Operation Desert Shield in October 1990. In December 1990, A-40th Field Artillery(MLRS) - 3rd Armored Division Artillery (Hanau), 1/27th FA (MLRS) part of the 41st Field Artillery Brigade (Babenhausen) and 4/27th FA (MLRS) (Wertheim) deployed in support of Operation Desert Shield from their bases in Germany and 1/158th Field Artillery from Ft Sill deployed in January 1991.
C Btry 1/27th FA was the first ground unit to fire in support of Operation Desert Storm, firing a missile at approximately 00:40 (12:40am local) In early Feb 91 1/27th FA launched the biggest MLRS night fire mission in history.[7] It has since been used in numerous military engagements including the 2003 invasion of Iraq. In March 2007 the British Ministry of Defence decided to send a troop of MLRS to support ongoing operations in Afghanistan's southern province of Helmand; they will use newly developed guided munitions.
In 04/2011 the first modernized MLRS II and M31 GMLRS rocket were handed over to the German Army's Artillery School in Idar Oberstein. The German Army operates the M31 rocket up to a range of 90km.[8]

[edit] MLRS rockets and missiles

"Steel Rain" - M77 DPICM submunition of type used by MLRS M26 rocket. 644 M77s per rocket. The M77 was developed from the M483A1 that was developed for artillery shells.
The M270 system can fire MFOM, MLRS Family Of Munition rockets and artillery missiles, which are manufactured and used by a number of countries. These include:
  • M26 (United States): Rocket with 644 M77 Dual-Purpose Improved Conventional Munitions (DPICM) sub-munitions, range of 32 km.
    • M26A1 (United States): Extended Range Rocket (ERR), with range of 45 km and using improved M85 submunitions.
    • M26A2 (United States): As M26A1, but using M77 submunitions.
  • M27 (United States): Completely inert training Launch Pod/Container to allow full loading cycle training.
  • M28 (United States): Training rocket. M26 with three ballast containers and three smoke marking containers in place of submunition payload.
    • M28A1 (United States): Reduced Range Practice Rocket (RRPR) with blunt nose. Range reduced to 9 km.
  • XM29 (United States): Rocket with Sense and Destroy Armor (SADARM) submunitions. Not standardized.
  • M30 (United States): Guided MLRS (GMLRS). A precision guided rocket, range over 60 km, in pre-production, with a standard load of 404 M85 submunitions.
    • M31 (United States): Guided Unitary MLRS. Variant of the M30 with a unitary high-explosive warhead for use in urban and mountainous terrain.[9]
  • M39 (United States): Army Tactical Missile System (Army TACMS), with a range of 97 km with 950 antipersonnel and antimateriel (APAM) M74 grenades.
  • XM135 (United States): Rocket with binary chemical warhead (VX (nerve agent)). Not standardized.
  • MGM-140A (United States): Army Tactical Missile System (ATACMS). A large guided missile using the M270 launcher, with a variety of warheads.
    Main article: MGM-140 ATACMS
  • AT2 (Germany, UK, France): SCATMIN Rocket with 28 anti-tank mines and range of 38 km.
  • PARS SAGE-227 F (Turkey): Experimental Guided MLRS (GMLRS) developed by TUBITAK-SAGE to replace the M26 rockets.

[edit] Selected rocket specifications

Name Weight Range (max) Guidance Warhead
M26 306 kg (675 lb) 32 km (20 mi)
644 M77 DPICM submunitions
M26A1/A2 296 kg (650 lb) over 45 km (28 mi)
M26A1: 518 M85 DPICM submunitions
M26A2: 518 M77 DPICM submunitions
M30/M31
60 km (37 miles)[10] GPS/INS M30: 404 M85 DPICM submunitions
M31: 90 kg (200 lb) unitary HE
AT2 SCATMIN 254 kg (561 lb) 39 km (24 mi)

PARS SAGE-227 F over 300 kg/160 kg 70 km (43 mi)

[edit] M993 Launcher specifications

  • Entered service: 1982 (U.S. Army)
  • First used in action: 1991 (First Gulf War)
  • Crew: 3
  • Weight loaded: 24,756 kg
  • Length: 22 ft 6 in
  • Width: 9 ft 9 in [11]
  • Height (stowed): 2.57 m (8 ft 5 in)[12]
  • Height (max elevation): not available
  • Max road speed: 64 km/h
  • Cruise range: 480 km
  • Reload time: 4 min (M270) 3 min (M270A1)
  • Engine: Turbo-charged V8 Cummins VTA903 diesel 500 hp ver2.
  • Crossdrive turbo transmission fully electronically controlled
  • Average unit cost: $2.3 million[13]

[edit] Operators

[edit] Nicknames

US military operators refer to the M270 as "the commander's personal shotgun" or as "battlefield buckshot."[citation needed] It is also commonly referred to as the "Gypsy Wagon", because crews store additional equipment such as camouflage netting, cots, coolers, and personal items on top of the vehicle as the launcher itself lacks adequate storage space for the crew. Within the British military a common nickname is "Grid Square Removal System", a play on the initialism GSRS (from the older General Support Rocket System). With the adoption of the new M30 GPS guided rocket it is now being referred to as the "70 kilometer sniper rifle." [14] During the 1991 Gulf War, the Iraqis referred to the small M77 submunitions rockets as the "Steel Rain."

VT tank (Tank)

Versuchsträger 1-2
VT1-2-2.jpg
The VT 1-2 tank
Type Main battle tank
Tank destroyer
Place of origin  West Germany
Production history
Designer MaK[1]
Designed 1970s
Manufacturer MaK
Produced 1974 and 1975 (VT 1-1 and VT 1-2)
Number built 2 VTs and 5 GVTs
Variants VT 1-1, VT 1-2, GVTs
Specifications
Weight 43.5 tonnes (42.8 long tons; 48.0 short tons)
Length 9.06 m
Width 3.54 m
Height 2.04 m
Crew 3 (commander, driver, gunner)
Main
armament		 2 x 105 mm guns
or
2 x Rh 120 guns
Engine MTU MB803 Ra-500
1,500 PS (sustained )
2,400 PS (short time)[2]
Power/weight 34.5 PS/t(sustained)
55 PS/t (short time)
Suspension hydropneumatic
Speed 70 kilometres per hour (43 mph)
40 kilometres per hour (25 mph) offroad

The Versuchsträger 1-2 (abbreviated: VT, meaning "test-beds" or "experiment carrier") were two German prototype twin gun turretless main battle tanks. Since the early 1970s a number of West German companies have been working on conceptual designs for a successor to the Leopard 1. This project had the name Kampfpanzer 3 (KPz 3). The KPz 3 project was temporarily a British-German joint project, until the UK withdraw because they wanted a turreted tank.[3] The Germans already developed the Leopard 2 and therefore didn't see the need for another conventional tank.[3] One of the companies involved was the Krupp MaK, developing the VT 1-1 and VT 1-2. The test programme ended proving that a twin-gunned turretless tank could be created with enough technical effort, but had drawbacks in both practical and tactical use.[4]
 
 

History

The first VT tank, VT 1-1, was built in 1974 by Maschinenbau Kiel (MaK). One year later they produced the second VT tank, the VT 1-2. For further testing of the mobility and the concept of a tank with two main guns, five Gefechtsfeldversuchträger (GVT, "battlefield test-beds") were designed and built in 1975 and 1976.[5]

[edit] Design

The VT 1-1 was based on the shortened chassis of the cancelled MBT-70 tank. Since the tank had no autoloaders, a crew of four was needed to operate it. All VT tanks followed in some extent the traditional design of German Jagdpanzers like the post war Kanonenjagdpanzer. The VT 1-2 featured a turbocharged engine, which was capable of 1,500 PS sustained and 2,400 PS for short periods of time. The tank had a three-man crew seated at the front, with driver between commander and gunner. A comparison with the Leopard 2 was held, which proved that the VT 1-2 tank wouldn't have any significant advantages over the Leopard 2. The engine of the Leopard 2 wasn't defining the concept and could therefore be replaced by the stronger 12-cylinder engine of the VT 1-2 if required.[2] The Leopard 2 also had a high first round hit probability, due to its advanced fire control system, which corresponds to or even surpass the calculated first round hit probability of the twin guns.[2]
The VT tanks were designed to:[4]
  • reach a higher weapon efficiency through short reaction times, higher hit probability and higher kill probability by using twin guns in a casemate structure.
  • be more mobile by using a stronger engine and a new suspension.
  • have a higher level of survivalability by reducing the crew compartment, using heavy frontal armour and the ability to use the Wedelkurs technique, i.e. driving sideward (like beating on land).
The VT 1-1 was armed with two 105 mm rifled guns, which were loaded manually. The VT 1-2 carried two 120 mm smoothbore guns equipped with 6-round automatic loaders. The GVTs were not fitted with guns, instead they mounted two gun simulators. For combat simulations they used Talissi laser fire simulators. The propellant gases were created with a 20 mm cannon mounted on the roof.[5]

[edit] Variants

  • VT 1-1 - 105 mm rifled guns with manual loading.
  • VT 1-2 - 120 mm smoothbore guns with an automatic loader and an engine uprate.
  • GVT 01 - GVT 05
 
 
Langganan: Postingan (Atom)
 

Blogger news

Blogroll

About