The Indian Air Force will in the next few weeks finish weaving a security web with the Israeli SPYDER air defence missile system on the western borders in a bid to strengthen its preparedness to strike down any aerial threat from Pakistan.

The induction process was delayed by over three years due to the non availability of Czech-made Tatra trucks on which the missiles were to be carried.

The SPYDER (Surface-to-air PYthon and DERby) is a low-level, quick reaction missile (LLQRM) to neutralise hostile targets up to 15 km away and at heights between 20 and 9,000 metres.

SPYDER missile system is in the process of deployment along the western borders where it will help in tackling violation of Indian airspace

Senior defence sources told Mail Today: 'The SPYDER missile system is already in the process of deployment along the western borders where it will help in tackling any aircraft, cruise missile, surveillance plane or drone that tries to violate our airspace.'

The Python-5 is currently the most capable air-to-air missile (AAM) in Israel's inventory, while the Derby is an active radar homing AAM that provides the SPYDER missile system with a fire-and- forget option.

'The IAF will use the SPYDER along with the made-in-India Akash surface-to-air missile which has a little longer effective range of 25 km as part of a layered approach to defend vital assets and locations in the country,' the sources stated.

A delay in sourcing the Czezh-made Tatra truck caused the hold up in implementation

The SPYDER deal was completed by the IAF with Rafael and Israeli Aircraft Industries (IAI) in 2008 and supplies were to begin in three to four years.

But the process got delayed due to the unavailability of the Tatra trucks, which got mired in a controversy over bribery allegations.

COVER RANGES OF ■ SPYDER missile system can target enemy planes up to 15 km ■ AKASH missiles can strike down enemy planes, drones at 25-30 km ■ MRSAM can take down targets at a range between 50 to 70 km ■ S-400 missile system strikes down targets at 400-km range Advertisement

'Due to the lack of heavy specialised trucks, changes had to be made in the contract with the vendors and a made-in-India truck has been used for carrying the SPYDER system, which has been tested extensively resulting in delays,' the sources said.

Both the SPYDER and Akash are all-weather missiles and the process to seek and engage an aggressive aircraft or missile is automatic.

Besides aircraft and UAVs, they can also neutralise low-level cruise missiles.

The IAF has taken a slew of measures to strengthen its air defence capabilities in the recent past as it is also going to deploy another air defence system called the Medium Range Surface to Air Missile (MRSAM) system from Israel, which can strike down targets at 50-70km.

The force would receive a major boost when it starts getting the S-400 air defence missile system from Russia, which can take out targets at 400 km and can be very effective against enemy AWACS (Airborne Warning And Control System) and cruise missiles at great distances.