India successfully test-fires nuclear-capable Agni 5 ballistic missile

India successfully test-fired on Monday its nuclear-capable, inter-continental ballistic missile Agni 5, which has a range of over 5,000 km covering whole of China, from Abdul Kalam island off Odisha coast.

Defence sources said the successful test-firing will pave way for the user trial of the most potent Indian missile and its eventual induction into the special forces command (SFC).The three-stage, solid propellant surface-to-surface missile was test-fired from a mobile launcher from launch complex-4 of the Integrated Test Range (ITR) at about 1105 hours, DRDO sources said.

About 17-metre long and weighing over 50 tonnes, the surface-to-surface missile majestically rose from the confines of its canister flawlessly and achieved all targets, sources in Defence Research and Development Organization (DRDO) said.

It is the fourth developmental and second canisterised trial of the missile.

While the first test was conducted on April 19, 2012, the second was on September 15, 2013 and the third on January 31, 2015 from the same base.

Among the missiles of Agni series, the latest Agni-5 is the most advanced, having some new technologies incorporated with it in terms of navigation and guidance, warhead and engine, the sources said.

Many new technologies developed indigenously were successfully tested in the trial. The very high accuracy Ring Laser Gyro based Inertial Navigation System (RINS) and the most modern and accurate Micro Navigation System (MINS) had ensured the missile reached the target point within few meters of accuracy.

The high speed on board computer and fault tolerant software along with robust and reliable bus guided the Missile flawlessly, said a DRDO official.

The missile is so programmed that after reaching peak of its trajectory, it turns towards earth to continue its journey towards the intended target with an increased speed due to the attraction of earth's gravitational pull and its path precisely directed by the advanced on-board computer and inertial navigation system.

The atmospheric air rubbing the skin of the missile during the re-entry phase raises the temperature to beyond 4000 degrees Celsius.

However, the indigenously designed and developed carbon-carbon composite heat shield continues to burn sacrificially protecting the payload, maintaining the inside temperature below 50 degrees Celsius.