Thursday, August 26, 2010

Our Unique made "LCH"

The HAL Light Combat Helicopter (LCH) is a combat helicopter being developed in India by Hindustan Aeronautics Limited (HAL) for use by the Indian Air Force and the Indian Army.In 2006, HAL announced its plans to build a LCH. Funds for the design and development of the LCH to meet the requirements of the Indian Army and the Indian Air Force were sanctioned in October 2006.

The LCH is a derivative of the HAL Dhruv, which was inducted into the Indian armed forces. Using a successful and proven helicopter as the base platform is expected to conserve the project costs for the LCH, which is pegged at INR 3.76 Billion (US$78.8M). The LCH was expected to be ready for the Initial Operational Clearance (IOC) by December 2010 with the Final Operational Clearance (FOC) in 2011. However, the revised timeframes hold that the 5.5-tonne LCH should be ready for induction into IAF by 2012-2013. The first prototype of LCH completed its first ground run on February 4. HAL has a firm order to deliver 65 LCH to the IAF and 114 to the Army.

HAL has performed the maiden flight of its indigenously designed and developed LCH. The first Technology Demonstrator (TD-1) of the LCH flew the 20 minute flight from HAL's Helicopter Complex, Bangalore on 29 March 2010. This flight provided an opportunity to carry out low speed, low altitude checks on the systems on-board. The crew reported that the performance of the helicopter and systems was satisfactory.
The LCH incorporates stealth features and crash landing gear for survivability. The LCH will have a narrow fuselage, with two crew stations.The LCH is being designed to fit into an anti-infantry and anti-armour role and will be able to operate at high altitudes (16,300 feet). HAL hopes to equip the Indian Air Force with about 65 gunships.The helicopter is powered by the HAL/Turbomeca Shakti turboshaft engine. The helicopter will be equipped with helmet-mounted targeting systems, electronic warfare systems and advanced weapons systems.

  In 2006, HAL selected the M621 cannon incorporated in a Nexter THL 20 turret for the gun armament of the helicopter, operated by a helmet mounted sight.Three prototypes will be built. The second version will be fitted with weaponry before its test flight. The Indian Air Force will be provided with the third prototype for user trials. The LCH will have a glass cockpit with multifunction displays, a target acquisition and designation system with FLIR, Laser rangefinder and laser designator. Weapons will be aimed with a helmet mounted sight and there will be an electronic warfare suite with radar warning receiver, laser warning receiver and a missile approach warning system.

General characteristics:

Crew: 2

Length: 15.8 m (51ft 8in)

Rotor diameter: 13.3 m (43 ft 6 in)

Height: 4.7 m (15 ft 4 in)

Disc area: 138.9 m² (1472 ft²)

Empty weight: 2550 kg (5621 lb)

Loaded weight: 4000 kg (8818 lb)

Useful load: 2950 kg (6503 lb)

Max takeoff weight: 5,700 kg (12125 lb)

Powerplant: 2× HAL/Turbomeca Shakti turboshaft, 1000 kW[14] (1400 shp[15]) each

Performance:

Never exceed speed: 330 km/h (178 knots, 207 mph)

Maximum speed: 275 km/h (148 knots, 171 mph)

Cruise speed: 260 km/h (140 knots, 161 mph)

Range: 700km (297 nm, 342 mi)

Service ceiling: 6500 m (21,300 ft)

Rate of climb: 12 m/s (2362 ft/min)

Disc loading: 39.59 kg/m² (8.23 lb/ft²)

Power/mass: 327 W/kg (0.198 hp/lb)

Armament:
Guns: M621 20 mm cannon on Nexter THL-20 turret

Rockets: Unguided rockets

Missiles: MBDA air-to-air missiles

Air-to-surface missiles

Anti-radiation missiles

Helina ATGM(8)

Bombs: Iron bombs

cluster bomb units

grenade launcher

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