सामयिक विषय: Scientific

सागर नौका आईएनएसवी तारिणी भारतीय नौसेना में शामिल

INSV Tarini

Question: Which one the below ocean going sailboat has recently been inducted in the Indian Navy?
a) Tarangini
b) Sudarshini
c) Mhadei
d) Tarini
Ans (d)

• On 18th February, 2017, The Indian Navy’s second ocean going sailboat INSV Tarini was inducted in a ceremony held at the INS Mandovi Boat Pool.
• INSV Tarini is a sloop built by M/s Aquarius Shipyard Pvt Ltd at Divar, Goa. The sail boat Tarini is slated to be the platform for First Indian All Women Circumnavigation of the Globe expedition of the Indian Navy.
• Extensive trials of the newly built INS Tarini were successfully completed on 30 January 2017.
• The boat has been built to a stock design by Van de Stadt, Netherlands called Tonga 56.
• The hull is made of wooden core fiberglass sandwich construction for a better performance than aluminum and steel.
• Her mast is 25 meters tall and has been custom built by M/s Southern Spars, Cape Town, for sailing in extreme conditions. She boasts a Raymarine navigation suite and an array of latest satellite communication systems through which she can be contacted anywhere in the world.
• Indian Navy will is operating four sailing vessels capable of open ocean deployments- Tarangini, Sudarshini, Mhadei and Tarini, all four of which have been built in shipyards at Goa.

Air Forces Netra

Air Forces Netra

Question: Airborne Early Warning and Control System Netra has been developed by …
(a) DRDO
(b) ISRO
(c) Hindustan Aeronautics Limited
(d) None of the above.
Ans: (a)
Related Fact:

  • Indigenously developed Airborne Early Warning and Control System (AEW&CS) ‘Netra’ was inducted into the Indian Air Force on 14th February, 2017 at Yelahanka air base Bengaluru.
  • The AEWS&CS was developed by the Centre for Airborne Systems (CABS). The laboratory comes under the Defence Research and Development Organisation and headed by woman scientist J Manjula.
  • Netra has the capability to detect hostile missiles and jets at land, sea and air within the range of 200 kms. It is mounted on a Brazilian Embraer-145 jet.
  • The Netra project is headed by Rajlaxmi who has been working with the DRDO for the last 28 years. The project received outstanding contribution from women scientist working at DRDO.
  • Senior scientist Manisha Sharma worked on the system integration and communication, while scientist Bhagyalaxmi looked after computer mission of the project


Interceptor missile successfully test-fired

Interceptor missile successfully test-fired

Question: The Wheeler Island in Bhadrak district of Odisha has been renamed as …
(a) Abdul Kalam Island
(b) Nagarjun Island
(c) Bhaskaracharya Island
(d) None of the above.
Ans: (a)

  • On 11th February, 2017, India successfully test-fired its interceptor missile off the Odisha coast from Abdul Kalam Island (Wheeler Island) at about 7.45 AM.
  • It is a significant milestone in the direction of developing a two-layered Ballistic Missile Defence system.
  • This mission termed as “PDV mission is for engaging the targets in the exo-atmosphere region at an altitude above 50 km of earth’s atmosphere. Both, the PDV interceptor and the two stage target missile, were successfully engaged.
  • The target was developed for mimicking a hostile Ballistic Missile approaching from more than 2000 km away was launched from a ship anchored in the Bay of Bengal.
  • In an automated operation, radar based detection and tracking system detected and tracked the enemy’s ballistic missile.
  • The computer network with the help of data received from radars predicted the trajectory of the incoming Ballistic Missile.
  • PDV took-off once the computer system gave the necessary command for lift-off. The Interceptor guided by high accuracy Inertial Navigation System and supported by a Redundant Micro Navigation System moved towards the estimated point of the interception.


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