Defence Current Affairs - 2020

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.

Indian Navy inducts 4 types of indigenously developed sonars

The Indian Navy has formally inducted four types of indigenously developed sonars that will boost its underwater surveillance capability.

The systems have been designed and developed by NPOL Naval Physical & Oceanographic Laboratory (NPOL), a Kochi based laboratory of DRDO.

These 4 types of sonars are

  • Abhay: It is an advanced hull mounted active-cum-passive integrated sonar system.
  • It has been designed and developed for the smaller platforms such as shallow water crafts and coastal surveillance/patrol vessels.
  • It is capable of detecting, classifying, localizing and tracking sub-surface and surface targets in both its active and passive modes of operation.
  • Indian Navy has proposed to induct this SONAR on three of the Abhay class ships.
  • Humsa UG: It has been designed for upgrading the existing Humsa sonar system for intensifying the command over the high seas.
  • This system is proposed to be installed on seven ships of three different classes of ships.
  • AIDSS: It stands for Advanced Indigenous Distress sonar system for submarines. It is distress sonar is an Emergency Sound Signaling Device.
  • It is used to indicate that a submarine is in distress and enable quick rescue and salvage. It is also provided with a transponder capability.
  • NACS: It stands for Near-field Acoustic Characterisation System. It determines the in-situ performance of SONAR systems used to find the frequency-dependent 3-D transmission and reception characteristics of SONAR.
  • It is also used to measure magnitude and phase characteristics of SONAR transmission and reception electronics and the transducers.
  • The NACS has been integrated with HUMSA-NG SONAR array and proved onboard Naval platforms. It will be fitted on all frontline ships.

Benefits of induction of these four systems

  • Underwater surveillance capability of the Indian Navy will get a boost.
  • Give fillip to India’s the quest for self-reliance in this critical area of technology.

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India’s combat-capable Rustom-II drone successfully completes maiden test flight

India’s indigenously developed long-endurance combat-capable drone, Rustom-II (TAPAS 201) successfully completed its maiden-flight.

The test flight took place from Aeronautical Test Range (ATR), Chitradurga, Karnataka, which is a newly developed flight test range for the testing of UAVs and manned aircraft.

During the test, TAPAS 201 accomplished the main objectives of proving the flying platform, such as take-off, bank, level flight and landing among others.

Key Facts

  • RUSTOM–II is a Medium Altitude Long Endurance (MALE) UAV. The UAV weighs two tonnes. It has an endurance of 24 hours.
  • It is multi-mission UAV which can conduct Intelligence, surveillance and reconnaissance missions for the armed forces. It can also be used as an unmanned armed combat.
  • It is capable to carry different combinations of payloads like Medium Range Electro Optic (MREO), Synthetic Aperture Radar (SAR) and Long Range Electro Optic (LREO).
  • It can also carry Electronic Intelligence (ELINT), Communication Intelligence (COMINT) and Situational Awareness Payloads (SAP) to perform missions during day and night.
  • It has been designed and developed by Aeronautical Development Establishment (ADE), the Bangalore-based lab of DRDO. HAL and BEL are the production partners.
  • Rustom-II (TAPAS 201) is also first R&D prototype UAV which has undergone certification and qualification for the first flight from Centre for Military Airworthiness & Certification (CEMILAC) and Directorate General of Aeronautical Quality Assurance (DGAQA).

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