IAI-HAL NRUAV UAV
The Indian Navy in 2006-07 had funded HAL to convert the Alouttee helicopters(Chetak) into rotary-wing UAVs, the project consists of a Malat-made Heli Modification Suite (HeMoS) fitted on HAL's Chetan, an upgraded Chetak. IAI's Malat Naval Rotary UAV (NRUAV) system replaces a manned helicopter's avionics with the flight control system from IAI's Heron UAV. The system is designed to carry a variety of ISR payloads including SAR, EO, and SIGINT. India began development of a NRUAV system for the Chetak (Alouette III) beginning in 2008. The system would be capable of missions 6 hours in duration at a range of 120 km from the launching ship.
The IAI-HAL NRUAV project consists of a Malat-made Helicopter Modification Suite (HeMoS) fitted on HAL's Chetan, an upgraded Chetak with Turbomeca TM 333 2M2 engines. The helicopter is planned to be used for unmanned operations and advanced intelligence, surveillance and reconnaissance (ISR) missions from warship decks.
The IAI Naval Rotary UAV (NRUAV) is a tactical unmanned rotorcraft designed to provide over the horizon targeting (OTHT), real-time battle damage assessment (BDA) and intelligence, surveillance and reconnaissance (ISR) missions. It is based on IAI's Malat-made Helicopter Modification Suite (HeMoS) platform. The NRUAV features automatic take-off and landing (ATOL) from warships and fully redundant system. It is equipped with a line-of-sight data link and can accommodate a variety of payloads such as electro-optical sensors, multi-mode radars, electronic support measures (ESM) or Communications Intelligence (COMINT) payload.
The NRUAV is capable of climbing to an altitude of 4600 meters, its range is 150 km, and the maximum flight duration is six hours. It has a maximum speed of 100 knots (185 km / h), a loitering speed of 60 knots (111 km / h) and can carry a load weighing up to 220 kg, consisting of a versatile multi-sensor kit with advanced capabilities. The kit includes day and night optoelectronics, which also provides automatic tracking and range measurement to the target, a multi-mode radar that provides sea surveillance and long-range observation, a synthetic aperture radar (SAR) and an inverse synthetic aperture radar (Inverse SAR) with selection modes for moving ground and air targets, navigation and avoidance of adverse atmospheric phenomena. In addition, the drone can carry either a radio intelligence sensor, or an electronic warfare sensor. The system communicates with the ground control station via a data transmission channel within the line of sight.
Israel's MALAT unveiled the Maritime Naval Rotary Unmanned Aerial Vehicle (NRUAV) being developed with under cooperation with India at at IMDEX 09 in May 2009. In fact, the platform for the first NRUAV was the Chetak (Alouette III), widely used by the Indian Navy. The helicopter could be deployed for mission of 6 hours, up to a distance of 120 km from the launching vessel.
Employed as an ‘elevated mast’, NRUAV can extend the vessel’s coverage over a much larger area, providing early warning and detection of aircraft, and cruise missiles, surface vessels and even subsurface activity. For example, its radar could easily detect a patrol boat from 80 nautical miles, automatically detect and track surface targets and effectively handle 64 airborne targets. Being transformed into a pilotless platform, the helicopter will be equipped with multiple payloads, for multi-mission performance, enabling aerial shipborne resupply, maritime surveillance and other missions to continue regardless on weather conditions.
NRUAV UAV is based on a set of transformation into a helicopter system HeMoS (Helicopter Modification Suite) developed by IAI Malat. HeMoS can automatically take off and land from ships, assess combat damage and round-the-clock, over-the-horizon target designation in adverse weather conditions. “The naval UAV meets a wide range of operational needs, such as being invaluable in the fight against illegal fishing, piracy, insurgent activity and other activities aimed at undermining the country's sovereignty,” Beechman continued. "This highly efficient system makes an important contribution to creating an integrated perception of the maritime environment without risking human lives."
It has been demonstrated that automatic landing, relying on closely coordinating the helicopter’s flight controls in reference to the, ship’s landing deck rolling under high sea conditions is safer than a pilot controlled landing under such conditions. The NRUAV features automatic take-off and landing from aviation capable ships and from unprepared landing sites.
Among the sensor suites that can be carried by the NRUAV are different Maritime Surveillance Radar systes, capable of surface and counter-submarine operation, resolution sharpening, synthetic apperture radar (SAR) and Inverse SAR modes. Electro-optical payloads are also carried. Airborne intelligence also accommodate electronic – a SIGNIT/COMINT Suite that can be carried on UAVs, like the EL/K-7071 COMINT and EL/K-7071 SIGINT systems EL/L-8385 Electronic Support measures (ESM). Among the optronic payloads, stabilized Plug-In Optronic Payload (POP) Family on display includes POP300LR Observer, Mini-POP and Multi-Mission Optronic Stabilized Payload – MOSP3000. The entire sensor suit is controlled from the ship’s command information center (CIC).