SK-105 Kürassier
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The SK-105 ''Kürassier'' is an
Austria Austria, , bar, Östareich officially the Republic of Austria, is a country in the southern part of Central Europe, lying in the Eastern Alps. It is a federation of nine states, one of which is the capital, Vienna, the most populous ...
n
light tank A light tank is a tank variant initially designed for rapid movements in and out of combat, to outmaneuver heavier tanks. It is smaller in size with thinner armor and a less powerful main gun, tailored for better tactical mobility and ease of ...
armed with a rifled 105 mm gun in an
oscillating turret An oscillating turret is a form of turret for armoured fighting vehicles, both tanks and armoured cars. The turret is unusual in being made of two hinged parts. Elevation of the gun relies on the upper part of the turret moving relative to the l ...
. It is estimated that over 700 have been produced.


History


Design and development

The SK-105 was developed by Saurer-Werk (now Steyr-Daimler-Puch) to meet the Austrian Army's operational requirement for a mobile anti-tank vehicle. The first prototype was ready in 1967 and delivery of pre-production vehicles commenced in 1971. The SK-105 is based on a heavily modified Saurer APC. The hull of the SK-105 is welded steel and is divided into three compartments: driver's at the front, fighting in the centre and the engine at the rear. Due to its low weight, the SK-105 can be transported by
C-130 Hercules The Lockheed C-130 Hercules is an American four-engine turboprop military transport aircraft designed and built by Lockheed Corporation, Lockheed (now Lockheed Martin). Capable of using unprepared runways for takeoffs and landings, the C-130 ...
transport aircraft Transport aircraft is a broad category of aircraft that includes: * Airliners, aircraft, usually large and most often operated by airlines, intended for carrying multiple passengers or cargo in commercial service * Cargo aircraft or freighters, fix ...
. The turret of the SK-105 is developed from the French design used on the
AMX-13 The AMX-13 is a French light tank produced from 1952 to 1987. It served with the French Army, as the Char 13t-75 Modèle 51, and was exported to more than 26 other nations. Named after its initial weight of 13 tonnes, and featuring a tough and re ...
. Its gun can penetrate 360 mm of armour. Front armour protects the crew from 20mm armour-piercing rounds over its frontal arc, while all-round protection is against small arms bullets only. Add-on armour on the front part of the chassis and turret is available as an option, which provides protection against 35  mm APDS rounds at a flank arc. Some export vehicles were fitted with add-on armour. The driver sits at the front of the vehicle on the left. On the right side of the front section of the hull, there is spare ammo for the main gun. There are three periscopes forward of his hatch cover and in wet weather, a small windscreen with a wiper can be fitted. The driver's centre day driving periscope can be replaced by a passive night vision periscope if required. Ammunition and the vehicle's batteries are stowed to the right of the driver. The engine and transmission are at the rear part of the vehicle and the engine compartment is fitted with a fire extinguisher which can be operated by hand or automatically. Combustion air is drawn in via a cyclone filter system. The
oscillating turret An oscillating turret is a form of turret for armoured fighting vehicles, both tanks and armoured cars. The turret is unusual in being made of two hinged parts. Elevation of the gun relies on the upper part of the turret moving relative to the l ...
is similar to that fitted to the AMX-13 light tank. The commander is seated on the left of the turret and the gunner on the right. The commander is provided with seven periscopes, a periscopic sight. The commander's infrared night sight has a magnification of x6. The gunner has two observation periscopes, a telescopic sight and a one-piece lifting and swivelling hatch cover. Due to the design of the oscillating turret, all sights are always linked to the main and secondary armament. For engaging targets at night, an infrared periscopic sight is provided for the commander. A
CILAS CILAS is a French company, a subsidiary of Ariane Group, specialized in laser and optics technology, founded in 1966. This high-technology engineering company was the inventor of the particle size analyzer. Today, it develops, manufactures an ...
TCV 29 laser range-finder (range of 400 to 9,995 m) is mounted on the roof of the turret. The XSW-30-U 950 W infrared/white light searchlight is fitted on the left front plate of the oscillating part of the turret. A fixed fan in the turret draws out fumes when the main or secondary armament is fired. All versions of the SK-105 have a 105  mm gun designated 105 G1. This gun is completed with a semi-automatic revolving magazine-type
autoloader An autoloader or auto-loader is a mechanical aid or replacement for the personnel that load ordnance into crew-served weapons without being an integrated part of the gun itself. The term is generally only applied to larger weapons, such as nava ...
that allowed the reduction of the crew to three members. The vehicle has two revolving magazines holding 6 rounds each. A total of 42 rounds for the main gun are carried. Once the gun is fired the empty cartridge cases are ejected out of the rear of the turret through a trapdoor hinged on the left. This vehicle is specifically designed for mountainous terrain and has an improved climbing capability compared to heavier main battle tanks. In 2014, all production and support rights on SK-105 were acquired from General Dynamics Europe Land System (GDELS) by the Belgian company DUMA Engineering Group. The company is supporting current users of SK-105 and derivatives and offering retrofit programs.


Operational history


Variants

* SK-105 A1 - base production * SK-105 A2 - improved version of the A1. it feature a new fire control system and a fully automatic electrical loading system. * SK-105 A3 - limited production of improved version of the SK-105. it feature applique armour on the turret, new fire control, thermal camera and a new M68 105mm gun. * Greif armoured recovery vehicle * Pionier engineering vehicle * SK-105 driver training vehicle


Patagón Derivative

In 2005, the Argentine Army ordered 9 SK-105 hulls from Austria, which it announced would be retrofitted with the turrets of its surplus
AMX-13 The AMX-13 is a French light tank produced from 1952 to 1987. It served with the French Army, as the Char 13t-75 Modèle 51, and was exported to more than 26 other nations. Named after its initial weight of 13 tonnes, and featuring a tough and re ...
tanks. In Argentine service, this variant was designated '' Patagón''. Argentina planned to assemble 39 Patagóns between 2005 and 2009, at an estimated cost of $23.4 million USD. No more hulls were purchased, and only 4 of those Argentina previously acquired for this purpose received the conversion, plus the prototype. The program was shelved due to lack of funds.


Operators

*: 112, excluding the ''Patagon'' variant. *: 54 *: 52 *: 17 *: 109 *: 54


Former operators

*: 286 (19 Pionier engineering vehicles still in use) *: 100


See also

;Comparable vehicles * American
M41 Walker Bulldog The M41 Walker Bulldog, officially 76-mm Gun Tank, M41, was an American light tank developed for armed reconnaissance purposes. It was produced by Cadillac between 1951 and 1954 and marketed successfully to the United States Army as a replaceme ...
* French
AMX-13 The AMX-13 is a French light tank produced from 1952 to 1987. It served with the French Army, as the Char 13t-75 Modèle 51, and was exported to more than 26 other nations. Named after its initial weight of 13 tonnes, and featuring a tough and re ...
* Soviet
PT-76 The PT-76 is a Soviet amphibious light tank that was introduced in the early 1950s and soon became the standard reconnaissance tank of the Soviet Army and the other Warsaw Pact armed forces. It was widely exported to other friendly states, like ...
;Other AFVs with oscillating turret * French
AMX 50 The AMX 50 (official designation) or AMX-50 was a French heavy tank designed in the immediate post Second World War period. It was proposed as, in succession, the French medium, heavy, and main battle tank, incorporating many advanced features. I ...
* French
Panhard EBR The Panhard EBR (Panhard ''Engin Blindé de Reconnaissance'', French: Armored Reconnaissance Vehicle) is an armoured car designed by Panhard for the French Army and later used across the globe, notably by the French Army during the Algerian War a ...


References


External links


Technical data sheet and pictures SK-105 from ArmyRecognition.com

Steyr-Daimler-Puch Spezialfahrzeug GmbH
manufacturer of the SK-105 Kurassier {{DEFAULTSORT:SK-105 Kurassier Light tanks of Austria Light tanks of the Cold War Tanks with autoloaders Military vehicles introduced in the 1970s