Defence Current Affairs

Defence Current Affairs of 2018-19 related to India’s Defence, Indian Armed Forces, Defence Production, Defence Acquisition and related matters for SSC, States Civils, UPSC and Other Competitive Examinations.

IAF inducts indigenous early warning system NETRA

The Indian Airforce (IAG) has formally inducted the first indigenously built Airborne Early Warning and Control System (AEW&C) dubbed as NETRA.

The AEW&C NETRA has been indigenously developed by the Defence Research and Development Organisation (DRDO). It was unveiled at the 2017 Aero India exhibition held in Bengaluru, Karnataka.

Key Facts 
  • AEW&C are airborne radar systems mounted on a carrier jet for airborne surveillance system i.e. to detect and track aircraft, missiles, ships and vehicles and provide command and control to direct friendly forces.
  • It consists of active electronically scanned radar, secondary surveillance radar, electronic and communication counter measures, LOS (Line of Sight) and beyond-LOS data link, voice communication system
  • AEW&C NETRA system is based on Embraer aircraft (Emb-145 platform). It has self-protection suite and also mid-air refueling capability to enhance surveillance time.
  • This system gives 240-degree coverage of airspace. DRDO has developed three NETRA systems and its three aircraft will be based at Bhatinda, facing the Western border.
  • With this India, joins group of other countries such as United States, Russia and Israel which have developed the AEW&C system.

INS Sarvekshak becomes India’s first ship to go green

Indian Navy’s survey vessel INS Sarvekshak, based at the Southern Naval Command in Kochi became the first naval ship to go green by installing a solar power system on board.

It has innovatively deployed the zero-maintenance solar power system, capable of generating 5.4KW electricity and replacing the ship’s traditional 4.4KW emergency diesel alternator. 

Key Facts
  • The solar power generating system has been installed by customising and installing ‘razor-thin, flexible’ solar panels on the canopy of its telescopic (retractable) helicopter deck.
  • It has light weight, extra-thin and flexible unbreakable solar panels imported from US along with no-fume solid electrolyte batteries.
  • These industrial grade panels are found to be performing well in all-light conditions and are shade-tolerant. They also have a maintenance free life for 24 years making it maintenance free.
  • The system is 100% reliable for power source that can be used for communication equipment, general lightings onboard and battery charging round the clock with battery outputs during night.
  • The low cost system will slash a yearly carbon emission of 60,225 kg and save around 22,995 litres of diesel used to run the vessel’s emergency diesel alternator.