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Airborne Surveillance Platform
The Airborne Surveillance Platform (ASP) is an Indian defence project initiated by the Defence Research and Development Organisation (DRDO) with the aim to produce an Airborne Early Warning System. Two prototypes were developed and flight tested for three years. The project was cancelled in 1999 after the prototype aircraft crashed, killing eight scientists and the aircrew. After four years of inactivity, the project was revived in 2004 with a new platform and radar.
==Origins==
The ASP programme, code-named "Airavat", is one of the key force multipliers in India's modern war scenario. DRDO is developing an advanced surveillance platform based on a Hawker Siddeley HS 748 aircraft to detect targets at extended ranges with all-around azimuth coverage. It is designed to handle 50 targets and features a hybrid navigation system, including both satellite and ground (beacon) based topography. The communication and data links are dual redundant secure systems.
The origin of the programme possibly lies in the aftermath of the 1971 India-Pakistan war. As revealed by air operations on the western front, timely information retrieval and coordination, namely vectoring and interception, could not be accomplished effectively from the ground. In late 1979, DRDO accordingly formed a team to study the possibility of mounting an airborne radar on an existing aircraft.
The problem was not the availability of suitable aircraft but the lack of an effective airborne radar. An ad hoc team of specialists from DRDO's Electronics and Radar Development Establishment (LRDE) began work on developing an airborne radar, allowing the programme to proceed.〔(a ) 〕 Studies and analysis began in July 1985 under the project name 'Guardian', later (possibly in 1987) renamed 'Airawat'. In the late 1980s an HS 748 aircraft was fitted with a 24 ft x 5 ft composite rotodome. The aircraft flew with the pylon, but not the dome, in May 1989 and with the rotodome in November 1990. The Centre for Airborne Systems (CABS) was set up in February 1991, under Dr K. Ramchand to act as a systems house and integration agency using all the expertise and infrastructure available in India. At the peak of its operations, some 300 scientists and engineers were involved in the project. The aircraft was unveiled to the public during flight demonstrations at the inauguration ceremony of the first Aero India show held in Bangalore in December 1996. Two testbed aircraft transferred from the western command of the Indian Air Force, with tail numbers H-2175 and H-2176, were employed in the design program.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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