December 2016 Current Affairs

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ISRO conducts successful test launch of scramjet engine

ISRO conducts successful test launch of scramjet engine
29 August 2016 Current Affairs: The Indian Space Research Organization (ISRO) for the first time has successfully conducted the Scramjet (or Supersonic Combusting ramjet) engine test. The test was conducted from Satish Dhawan Space Centre, Sriharikotta in Andhra Pradesh and has successfully has met all the intended parameters.

The scramjet engine was test launched on board of RH 560 sounding rocket. RH 560 sounding rocket is two stage Advanced Technology Vehicle (ATV). The ATV along with the scramjet engines weighed 3,277 kg at lift-off. During the test, ATV was able to fly at Mach 6 (six times the speed of sound) speeds. The scramjet uses hydrogen as fuel and oxygen from the atmospheric air as the oxidiser. With this, India became only the fourth nation to flight-test a scramjet engine after United States, Russia and China. scramjet engine The scramjet engine works on the Air-breathing Propulsion System. The system uses natural oxygen present in the atmosphere to burn the fuel stored in the rocket. It reduces the amount of oxidiser to be carried along with the fuel, bringing down launch costs.

Benefits :  This system would help in reducing the lift-off mass of the vehicle as there will be no need of carrying liquefied oxygen on board the vehicle. In turn help in increasing the energy efficiency of the rocket and also make it cost-effective. Scramjet does not have rotating parts so the chances of failure are also measurably reduced. Currently, ISRO uses rocket launch vehicles like the PSLV to deliver satellites into orbit. But PSLVs are expendable i.e. it can only be used once.

The new propulsion system would complement ISRO’s aim to develop a reusable launch vehicle that would have longer flight duration. This system involving the recently tested scramjet engine, would become crucial while sending up the spacecraft.

This was not India’s first venture into scramjet technology. DRDO is working with Russia’s NPO Mashinostroyenia to develop the second generation Brahmos cruise missile (dubbed the Brahmos-II) powered by a scramjet . Brahmos-II is being designed to fly 300 odd kilometres at a speed of Mach 7. The current generation Brahmos is propelled using a liquid-fuelled ramjet engine. It makes it possible for the missile propel forward at up to Mach 3 speed, making it one of the fastest for a cruise missile in the world.

 


December 2016 Current affairs

November 2016 Current affairs
30 NOV
NEWS
29 NOV
NEWS
28 NOV
NEWS
26 NOV
NEWS
25 NOV
NEWS
24 NOV
NEWS




October 2016 Current affairs
31 OCT
NEWS
27 OCT
NEWS
26 OCT
NEWS
25 OCT
NEWS
24 OCT
NEWS
22 OCT
NEWS

September 2016 Current affairs
30 SEP
NEWS
29 SEP
NEWS
28 SEP
NEWS
27 SEP
NEWS
26 SEP
NEWS
24 SEP
NEWS

August 2016 Current affairs
31 AUG
NEWS
30 AUG
NEWS
29 AUG
NEWS
27 AUG
NEWS
26 AUG
NEWS
25 AUG
NEWS



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