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C1 Ariete | |
---|---|
Type | Main battle tank |
Place of origin | Italy |
Service history | |
In service | 1994–present |
Production history | |
Manufacturer | Consorzio Iveco Oto Melara (CIO), a consortium formed by IVECO and OTO Melara |
Produced | 1994–2002 |
No. built | 200 |
Specifications | |
Mass | 54 t (53 long tons; 60 short tons) |
Length | 9.52 m (31.2 ft) |
Width | 3.61 m (11.8 ft) |
Height | 2.45 m (8.0 ft) |
Crew | 4 |
Armor | steel and composite |
Main armament | 120 mm OTO Breda L/44 smoothbore gun 42 rounds (15 ready-rounds in the turret basket with additional 27 rounds in the hull rack) |
Secondary armament | 7.62 mm MG 42/59 coaxial machine-gun, 7.62 mm MG 42/59 AA machine-gun 2,500 rounds |
Engine | Fiat MTCA 12V diesel 25.8 litre 950 kW (1,270 hp) |
Power/weight | 17.5 kW/t (23.5 hp/t) |
Transmission | ZF Friedrichshafen LSG 3000 |
Suspension | torsion bar |
Ground clearance | 0.44 m (1.4 ft) |
Operational range | 600 km (370 mi) |
Maximum speed | 65 km/h (40 mph) |
The C1 Ariete (English: battering ram, ram ) is a 3rd generation main battle tank of the Italian Army, developed by Consorzio Iveco Oto Melara (CIO), a consortium formed by IVECO and OTO Melara. The chassis and engine were produced by Iveco, while the turret and fire-control system were supplied by OTO Melara. The vehicle carries the latest optical and digital-imaging and fire-control systems, enabling it to fight day and night and to fire on the move. Six prototypes were developed by 1988, which were subject to intensive testing. The following year the vehicles travelled a combined 16,000 km. Deliveries were first planned for 1993, and took place in 1994 due to delays. Final delivery occurred 7 years later in August 2002.
The tank has a conventional layout similar to other Western MBTs: a driver located at the front of the hull, the fighting compartment towards the middle, and the engine compartment in the rear of the hull.
The Ariete's main armament is 120 mm smoothbore gun, designed by OTO Breda, [1] similar to the Rheinmetall L/44. The gun fires most NATO-standard rounds of the same calibre. It carries 42 rounds, 15 ready rounds are stored vertically on the left side of the main gun breech. The other 27 are stowed in a hull rack to the left of the driver's station. The gun barrel has a thermal insulating sleeve and a fume extractor; it is fully stabilized in both azimuth and elevation by an electro-hydraulic drive system.
Secondary armament consists of a 7.62 mm MG 42/59 coaxial machine gun operated by the tank gunner or commander and an additional 7.62 mm MG 42/59 configured as an anti-aircraft weapon operated by the main-gun loader from his hatch.
The tank's advanced fire-control system, manufactured by Galileo Avionica, is designated OG14L3 TURMS, and includes day and night panoramic capability for the commander's SP-T-694 primary sight (developed collaboratively by SFIM/Galileo), a stabilized platform including a thermal gunner's sight and a laser rangefinder to increase accuracy and expedite target detection and targeting, and a digital fire-control computer, which is capable of measuring wind speed, humidity, and exterior weather conditions, combining them with the turret's angle of elevation, attitude, and the barrel's physical wear to increase accuracy.
This computer is also a component of the tank's navigation system and allows for the exchange of tactical information between vehicles in a network. The Ariete has a "hunter-killer" capability in which the commander spots and designates targets for the gunner in a 360° field of vision around the vehicle without changing his position or having to open the turret hatch for visual identification of targets. The commander's sight also has a vertical traverse from –10° to +60° from the horizontal, which allows the tank to engage low-flying airborne threats—primarily helicopters. During night fighting, the commander and gunner both share the thermal sight which is able to resolve a 2.3×x2.3 m target from a distance of 1,500 m.
The Ariete's armour is a steel and composite blend, the turret front shape is similar to the British Challenger 1 and the American M1 Abrams.
The Ariete features two side-mounted, electronically fired GALIX 80mm grenade launchers. [2] Each launcher consists of four 80 mm barrels which can be intermixed with either smoke or chaff grenades. The smoke grenades are capable of shrouding the tank from visual or thermal detection, while the chaff grenades disperse the tank's radar cross section. The tank is fully NBC protected. [3]
The Ariete is powered by a 25.8-litre Fiat-Iveco MTCA turbo-diesel V12 rated at 937 kW (1,257 hp) at 2,300 rpm, with a maximum torque of 4,615 N⋅m (3,404 lbf⋅ft) at 1,600 rpm [4] driving through a ZF LSG3000 automatic transmission, with four forward gears and two reverse, allowing for a top cruising speed of 65 km/h and a 0–32 km/h acceleration in 6 seconds. The computer-controlled transmission allows it to climb grades rated up to 60%, and can ford waterways of up to 1.25 m on-the-fly. The entire engine and transmission assembly can be replaced in under 1 hour.
The Ariete's independent suspension system consists of 14 torsion bars with suspension arms, 10 hydraulic shock absorbers (installed on roadwheels numbers 1, 2, 3, 6 and 7), and 14 friction dampers.
During the first years of adoption, the Ariete MBT showed some deficiencies regarding the powerplant. While the original V12 1,250 hp FIAT-Iveco MTCA (Modular Turbo-Charged Aftercooler) was a coupling of two of the V6 engines used by several Italian Army vehicles such as the B1 Centauro tank destroyer and the Dardo IFV, it produced less power than the most advanced contemporary western designs. The Ariete's engine had to run at a high RPM to perform well, thus reducing the operating time between failures.[ citation needed ]
Moreover, to retain a good power-to-weight ratio, the total weight of the tank had to be kept below 60 tonnes. The relatively light weight of the Ariete helped lower consumption and facilitated the transport and mobility of the MBT (especially over bridges). This was obtained partially at the expense of the thickness of the armour that, only partially compensated by the good ballistic shape of the vehicle, raised some doubt about its ability to survive in the harshest environments.
As an improvement, Iveco developed a new version of the MTCA engine. The stroke was lengthened, increasing displacement to 30 litres, with a new common rail direct fuel injection system along a new double turbocharger, increasing power output to 1,200 kW (1,600 hp) at 1,800 rpm (with an electronically reduced torque of 5,500 N·m, maintained from 1,100 to 1,800 rpm to reduce damage to the transmission) and further reducing fuel consumption. The new engine had to be adopted during the first general revision of the existing vehicles, but seems to have been blocked by technical and financial problems. As for the armour, Oto Melara developed two different sets (with different thickness levels, depending upon mission nature) of adjunctive armour, shown for the first time at Eurosatory 2002.
In the early 2000s, the Italian Army was interested in developing a new version of Ariete (C2 Ariete or Ariete Mk. 2 designations were considered) which would enter service over the following years with the planned acquisition of 300 units. [5] Budget limitations drastically reduced the number of improved Ariete (order reduced to 200) and eventually caused the subsequent cancellation of the program. The planned improvements were therefore to be applied to the C1 Ariete during the future major revisions.
The Ariete C2 is a mid life update (Ammodernamento di Mezza Vita) of the Ariete for 125 units and includes:
CIO-Oto Melara planned to offer the opening of a production line in Brazil at its Sete Lagoas plant, where the LMV is already produced and the Centauro II will be produced for the Brazilian Army. However, the Army Strategic Program Armored Forces, which would provide 65 MBTs for the Brazilian Army, limits contenders to a maximum weight of 50 tonnes, which rules out the Ariete unless changes were made to Brazilian technical requirements. [6] [7]
Each tank battalion fields three tank companies with thirteen Ariete each and two Ariete for the battalion commander and the deputy commander.
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