DRDO Current Affairs

Astra: IAF successfully test fires indigenously developed Beyond Visual Range Air-to-Air Missile

Indian Air Force (IAF) has successfully test fired indigenously developed Beyond Visual Range Air-to-Air Missile (BVRAAM) Astra from Su-30 figher aircraft. The missile was tested at Kalaikunda Air Force Station, West Bengal. During the test, missile successfully engaged manoeuvring target with high precision meeting mission objectives.

Significance

The flight test assumes significance as it was part of the series of final pre-induction trials. In the series of trials held till date, Astra missile has been launched in complete Su-30 flight envelope. So far it has undergone more than 20 developmental trials.

Astra Missile

Astra is air to air beyond visual range air-to-air indigenously developed by Defence Research and Development Organisation (DRDO). It is one of the smallest weapon system developed by DRDO, having length of 3.8-metre and weighing 154kg. It is single stage solid fuelled missile and has payload capacity of 15 kg conventional explosives.

It can be launched from different altitudes and is capable of engaging targets at varying range and altitudes at both short-range targets (up to 20 km) in tail-chase mode and long-range targets (up to 80 km) in head-on mode.

It is radar homing supersonic missile having maximum speed of Mach 4 (four times speed of sound). It possesses high Single Shot Kill Probability (SSKP) making it highly reliable. It is all-weather missile with active radar terminal guidance, excellent electronic counter-counter measure (ECCM) features, smokeless propulsion and process improved effectiveness in multi-target scenario.

It has advance on-board electronic counter-measures that jam radar signals from enemy radar, making tracking of the missile difficult. It is fitted with terminal active radar-seeker and an updated mid-course internal guidance system that helps missile to locate and track targets. The missile can be integrated with all fighter aircraft of IAF including Sukhoi-30 MKI, Mirage-2000, MiG-29, Jaguar and the Tejas Light Combat Aircraft (LCA).

Month: Categories: Defence Current Affairs 2018

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India conducts successful Prithvi interceptor missile test at night

India successfully conducted interceptor missile test off the Odisha coast at night. With this, Defence Research and Development Organization achieved major milestone in developing indigenous two-layer Ballistic Missile Defence system.

About test

PDV interceptor missile was launched from Abdul Kalam Island (earlier known as Wheeler Island) of the Integrated Test Range (ITR) off Odisha coast. Its mission was aimed at test-firing of interceptor missile of coast of Odisha to intercept an incoming ballistic missile off the Bay of Bengal

During the test, both PDV interceptor and target missile were successfully engaged in automated operation. In this operation mode, the radar-based detection and tracking system of missile system detected and tracked target ballistic missile.

The computer network with help of data received from radars predicted trajectory of incoming ballistic missile. Based on this inputs PVD was fired for an interception and destroyed the incoming missile target with high accuracy.

Prithvi Defence Vehicle (PDV) missile

Prithvi Defence Vehicle (PDV) missile has been developed by indigenously by DRDO. It is two-stage missile and both stages are powered by solid propellants. It is intended to replace the existing Prithvi Air Defence (PAD) in PAD/Advanced Air Defence (AAD) combination.

It is designed for engaging targets in exo-atmosphere region at altitude 50 km of earth’s atmosphere. It is guided by high-accuracy Inertial Navigation System (INS) supported by Redundant Micro Navigation System for estimating point of interception.

Once missile crossed atmosphere, its heat shield ejected and IR Seeker dome is opened to look at target location as designated by mission computer. With help of Inertial Guidance and IR seeker, missile moves for interception. The missile is also fitted with Imaging Infrared (IIR) seeker, developed by DRDO, to distinguish between incoming warheads and decoys.

Month: Categories: Defence Current Affairs 2018

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