Marksman anti-aircraft system
Encyclopedia
Marksman is a British
United Kingdom
The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

 anti-aircraft weapon system, consisting of a turret, a Marconi
Marconi Electronic Systems
Marconi Electronic Systems , or GEC-Marconi as it was until 1998, was the defence arm of The General Electric Company . It was demerged from GEC and acquired by British Aerospace on November 30, 1999 to form BAE Systems...

 Series 400 radar and two Swiss 35 mm Oerlikon
Oerlikon 35 mm twin cannon
The Oerlikon 35 mm twin cannon is a towed anti-aircraft gun made by Oerlikon Contraves . The system was originally designated as 2 ZLA/353 ML but this was later changed to GDF-001...

 autocannons. The system was developed by Marconi
Marconi Company
The Marconi Company Ltd. was founded by Guglielmo Marconi in 1897 as The Wireless Telegraph & Signal Company...

 and is similar to the German Gepard
Flugabwehrkanonenpanzer Gepard
The Flugabwehrkanonenpanzer Gepard is an autonomous, all-weather-capable German self-propelled anti-aircraft gun . It was developed in the 1960s and fielded in the 1970s, and has been upgraded several times with the latest electronics...

 system in terms of engine performance, ammunition carried and effective range of the ammunition.

The turret could be adapted to many basic tank chassis, creating a self-propelled anti-aircraft gun (SPAAG
Self-propelled anti-aircraft weapon
An anti-aircraft vehicle, also known as a self-propelled anti-aircraft weapon or self-propelled air defense system , is a mobile vehicle with a dedicated anti-aircraft capability...

). The only operator of the system is the Finnish Army
Finnish Army
The Finnish Army is the land forces branch of the Finnish Defence Forces.Today's Army is divided into six branches: the infantry , field artillery, anti-aircraft artillery, engineers, signals, and materiel troops.-History of the Finnish Army:Between 1809 and 1917 Finland was an autonomous part of...

, who ordered 7 units in 1990. The turrets were fitted on Polish T-55AM
T-55
The T-54 and T-55 tanks were a series of main battle tanks designed in the Soviet Union. The first T-54 prototype appeared in March 1945, just before the end of the Second World War. The T-54 entered full production in 1947 and became the main tank for armored units of the Soviet Army, armies of...

 tank chassis. The system is known as the ItPsv 90 in Finnish service (Ilmatorjuntapanssarivaunu 90, Anti-Aircraft tank 90, the number being the year the tank entered service). It is considered a very accurate antiaircraft artillery system, having a documented hit percentage of 52.44%.

Service

Finland has seven ItPsv 90 Marksman anti-aircraft systems, providing low-level air-defense for tank battalions. The SPAAGs are organically tied to the headquarters company and form teams of two. The vehicles have an all-day capacity, and there is also a back-up crew to ensure combat survivability. The ItPsv 90 Marksman is primarily meant to fight helicopters, low-flying aircraft and unmanned aerial vehicle
Unmanned aerial vehicle
An unmanned aerial vehicle , also known as a unmanned aircraft system , remotely piloted aircraft or unmanned aircraft, is a machine which functions either by the remote control of a navigator or pilot or autonomously, that is, as a self-directing entity...

s (UAVs). It is also possible to engage surface and armored targets.

The chassis of the ItPsv 90 Marksman is a Polish T-55AM tank, which has been modified to fit the turret. The AM version was chosen due to the increased weight of the system (a T55AM weighs 36 tons, while a T-55AM Marksman weighs 41 tons) and the AM has more power (620 hp) than a regular T-55. The weapon system is guided by a British Marconi surveillance and guidance radar with a range of 12 km in search mode and 10 km in tracking mode. The laser distance measure device functions up to 8 km. The commander and the gun operator both have gyro-stabilized optical aiming devices.

The armament consists of two Swiss
Switzerland
Switzerland name of one of the Swiss cantons. ; ; ; or ), in its full name the Swiss Confederation , is a federal republic consisting of 26 cantons, with Bern as the seat of the federal authorities. The country is situated in Western Europe,Or Central Europe depending on the definition....

 35 mm Oerlikon anti-aircraft guns, with a rate of fire of 18 rounds per second. The fragmentation round has a muzzle velocity of 1,175 m/s. The effective range is 4,000 meters. The vehicle is also equipped with eight Wegmann 76 mm smoke dischargers, a 7.62 mm assault rifle
Assault rifle
An assault rifle is a selective fire rifle that uses an intermediate cartridge and a detachable magazine. Assault rifles are the standard infantry weapons in most modern armies...

, and a flare gun
Flare gun
A flare gun is a firearm that launches flares. It is typically used for signalling, as distress signalling, at sea or from the ground to aircraft...

. The turret can traverse a full 360 degrees and has an elevation range of −10 to +85 degrees. The magazines hold 460 fragmentation rounds and 40 anti-tank rounds.

There are three communication radios in the vehicle for fire guidance and communications.

The vehicle is operated by three crew — commander, gunner, and driver.

Versions

  • Centurion Marksman: a Marksman turret on a Centurion
    Centurion tank
    The Centurion, introduced in 1945, was the primary British main battle tank of the post-World War II period. It was a successful tank design, with upgrades, for many decades...

     chassis.
  • Chieftain Marksman: a Marksman turret on a Chieftain
    Chieftain tank
    The FV 4201 Chieftain was the main battle tank of the United Kingdom during the 1960s and 1970s. It was one of the most advanced tanks of its era, and at the time of its introduction in 1966 had the most powerful main gun and heaviest armour of any tank in the world...

     chassis.
  • Challenger Marksman: a Marksman turret on a Challenger 1
    Challenger 1 tank
    The British FV4030/4 Challenger 1, was the main battle tank of the British Army from 1983 to the mid 1990s, when it was superseded by the Challenger 2. It is also currently used by the Jordanian Armed Forces as their main battle tank after heavy modifications...

     chassis.
  • G6 Marksman: a Marksman turret on a G6
    G6 howitzer
    The G6 self-propelled howitzer is a South African artillery piece, developed around the ordnance of the G5 howitzer. It is one of the most powerful self-propelled guns on a wheeled chassis....

     chassis.
  • Leopard 1 Marksman: a Marksman turret on a Leopard 1
    Leopard tank
    The Leopard is a main battle tank designed and produced in West Germany that first entered service in 1965. Developed in an era when HEAT warheads were thought to make conventional heavy armour of limited value, the Leopard focussed on firepower in the form of the German-built version of the...

     chassis.
  • ItPsv 90: a Marksman turret on a T-55
    T-55
    The T-54 and T-55 tanks were a series of main battle tanks designed in the Soviet Union. The first T-54 prototype appeared in March 1945, just before the end of the Second World War. The T-54 entered full production in 1947 and became the main tank for armored units of the Soviet Army, armies of...

    AM chassis. Operated by Finland.
  • M48 Marksman: a Marksman turret on a M48 Patton
    M48 Patton
    The M48 Patton is a medium tank that was designed in the United States. It was the third and final tank to be officially named after General George S. Patton, commander of the U.S. Third Army during World War II and one of the earliest American advocates for the use of tanks in battle It was a...

     chassis.
  • T-55 Marksman: a Marksman turret on a T-55
    T-55
    The T-54 and T-55 tanks were a series of main battle tanks designed in the Soviet Union. The first T-54 prototype appeared in March 1945, just before the end of the Second World War. The T-54 entered full production in 1947 and became the main tank for armored units of the Soviet Army, armies of...

     chassis.
  • Type 59 Marksman: a Marksman turret on a Type 59
    Type 59
    The Type 59 main battle tank is a Chinese produced version of the Soviet T-54A tank, an improvement over the ubiquitous T-54/55. The first vehicles were produced in 1958 and it was accepted into service in 1959, with serial production beginning in 1963...

     chassis.
  • Vickers Marksman: a Marksman turret on a Vickers Mk 3 MBT
    Vickers MBT
    The Vickers MBT was a series of main battle tanks developed as a private venture by Vickers-Armstrongs for export. The design makes use of proven components such as the L7 gun of the Centurion, and the Leyland L60 multi-fuel engine, transmission and fire control system of the Chieftain...

     chassis.

Please note that the above mentioned versions are possible configurations as only the ItPsV 90 system is deployed.

Comparable systems

  • Tunguska-M1
    Tunguska-M1
    The 2K22 Tunguska is a Russian tracked self-propelled anti-aircraft weapon armed with a surface-to-air gun and missile system. It is designed to provide day and night protection for infantry and tank regiments against low-flying aircraft, helicopters, and cruise missiles in all weather conditions...

  • ZSU-23-4 Shilka
  • Type 95 SPAAA
    Type 95 SPAAA
    The Type 95 is a Chinese self-propelled anti-aircraft vehicle. It is armed with four 25 millimeter cannons and optionally four fire-and-forget QW-2 infra-red homing missiles. It was first displayed publicly at the Beijing Military Parade in 1999...

  • Type 87 self-propelled anti-aircraft gun
    Type 87 Self-Propelled Anti-Aircraft Gun
    The is a Japanese air defense weapon built around the Oerlikon 35 mm twin cannon system used on the Gepard tank. The system uses a modified Type 74 tank chassis...

  • PZA Loara
    PZA Loara
    The PZA Loara is a Polish armored radar-directed self-propelled anti-aircraft gun system. The original PZA Loara prototype was based on the chassis of the T-72 MBT...

  • M247 Sergeant York
    M247 Sergeant York
    The M247 Sergeant York DIVAD was a self-propelled anti-aircraft weapon , developed by Ford Aerospace in the late 1970s. Based on the M48 Patton tank, it replaced the Patton's turret with a new one that featured twin radar-directed 40 mm rapid-fire guns...

  • Flakpanzer Gepard
  • ZSU-57-2
    ZSU-57-2
    The ZSU-57-2 is a Soviet self-propelled anti-aircraft gun , armed with two 57 mm autocannons. 'ZSU' stands for Zenitnaya Samokhodnaya Ustanovka , meaning "anti-aircraft self-propelled mount", '57' stands for the bore of the armament in millimetres and '2' stands for the number of gun barrels....

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