BALASORE - For the third time in five days, India test-fired two indigenously developed surface-to-air anti-aircraft ‘Akash’ missiles from the Integrated Test Range at Chandipur near here. The double test-fire came after trials of the missile, with a range of 25 km and capable of carrying a warhead of 60 kg to neutralise aerial targets, on May 24th and 26th. ‘The flight trial of two Akash missiles were conducted in quick succession from road mobile launchers’, defence sources said. ‘During the trial, the missiles were aimed at intercepting a floating object supported by a pilotless target aircraft flown from launch complex-II at a definite altitude over the sea’, the sources said.  ‘It was a routine user trial conducted by the Indian defence forces after the completion of developmental test and induction into the defence armoury’, an official of the Defence Research and Development Organisation  said.  Soon after the launch, assessment of the test was done with the help of all data retrieved from telemetry stations and radars, they added. Akash, an anti-aircraft defence system, could simultaneously engage several targets with ‘Rajendra’ radar developed by Electronics and Radar Development Establishment, a Defence Research and Development Organisation laboratory in Bangalore. The radar carries out the surveillance, tracks the target, acquires it and guides the missile towards it. Defence experts have compared Akash missile system with the American MIM-104 Patriot surface-to-air missile system.