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Updated: December 22, 2013 00:09 IST

GSLV-D5 to lift off on January 5

T. S. Subramanian
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The four strap-on booster motors of the GSLV-D5 being strapped around the rocket’s core in the first stage in the Vehicle Assembly Building of the second launch pad at Sriharikota in December 2013.
ISRO The four strap-on booster motors of the GSLV-D5 being strapped around the rocket’s core in the first stage in the Vehicle Assembly Building of the second launch pad at Sriharikota in December 2013.

It will feature an indigenous cryogenic engine in its third stage

The refurbished Geo-synchronous Satellite Launch Vehicle (GSLV-D5) is getting ready to lift off at 4.18 p.m. on January 5, 2014, from the second launch pad at Sriharikota and it will put the communication satellite GSAT-14 into orbit. The GSLV-D5 will feature an indigenous cryogenic engine in its third, uppermost stage.

“We are moving towards the launch by January 5,” said K. Radhakrishnan, Chairman, Indian Space Research Organisation (ISRO). “All the four stages of the vehicle have already been integrated. The satellite will be mated with the launch vehicle by December 27,” he added.

‘All checks completed’

The Mission Readiness Review (MRR) team will meet on December 27 to give the formal clearance for the launch. “By then, everything would have been inspected. All checks on the vehicle would have been completed. Phase III, level I checks have already been done,” said Dr. Radhakrishnan.

ISRO is looking forward to this launch because the GSLV-D5 uses an indigenous cryogenic engine and the vehicle suffered a major snag on August 19, 2013 on the day of the launch. About 75 minutes before the lift-off, the liquid fuel in the propellant tank in the rocket’s second stage started leaking and rained down on the vehicle, forcing ISRO to call off the launch. Fumes engulfed the first and second stages of the vehicle, causing tense moments.

The leak was blamed on the fuel tank made of aluminium alloy called Afnor 7020 which tended to develop cracks over a period of time. The GSLV-D5 was dismantled and the “restoration process” done under the guidance of K. Narayana, former Director, Satish Dhawan Space Centre, Sriharikota. The GSAT-14 communication satellite, which was encapsulated in the heat shield, was preserved and tested periodically.

Since the liquid fuel leaked from the second stage tank made of aluminium alloy Afnor 7020, the Liquid Propulsion Systems Centre (LPSC), ISRO, Mahendragiri, Tamil Nadu, came up with a new second stage with its propellant tank made of aluminium alloy 2219. The four strap-on booster motors were refurbished. The rocket’s first stage, which uses solid propellants, has been replaced with a new one. The restored vehicle has new electronic components because the components in the four strap-on motors in the earlier vehicle had become wet from the fuel leak.

‘Critical components tested’

“Everything is going perfectly well [for the launch on January 5],” said M.C. Dathan, Director, LPSC, on Saturday evening. “Eighty per cent of the systems in the GSLV-D5, including the four strap-on liquid motors, the second liquid stage and the cryogenic stage are from the LPSC,” he said. The GSLV-D5’s cryogenic stage had been stored for the past three months-and-a-half. Mr. Dathan added: “The cryogenic stage’s critical components and valves have been tested, and found in good condition. There are three levels of checks on the vehicle. Phase III, level I checks have been done. This means all the fluid lines and electrical circuits have been checked. Everything is giving results as expected. We are ready to go ahead with the launch.”

The GSLV-D5 is a three-stage, 414-tonne and 49-metre tall vehicle.

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ISRO has the brains and I wish all scientists, Engineers and technicians, best wishes for this long awaited launch to be a success.

from:  arul
Posted on: Dec 24, 2013 at 13:20 IST

Patriotic Indians eagerly keep waiting for the dawn of 5th January 2014 to see the successful launch of GSLV5 because it would carry the indigenous Cryogenic Engine that causes to perplex ISRO since many years till date. As everyone knows that the successful Cryogenic Technology would cause to bring in a new era of exploration as well as experiment of Indian Space Technology. So all Indians who wish to get a new year gift from ISRO with a successful launch of GSLV5.

from:  Madhu Asramam
Posted on: Dec 23, 2013 at 18:32 IST

Go ISRO. All the best. This should be the best new year gift for all Indians.

be proud to be an Indian.

from:  Sumit Agrawal
Posted on: Dec 23, 2013 at 17:41 IST

Great to hear finally, ISRO is set to launch much awaited GSLV. I am
sure this time any setback won't come in our way. All the best to ISRO.

from:  priyank mishra
Posted on: Dec 23, 2013 at 13:33 IST

I hope GSLV D5 mission will be successful one because we need GSLV for our future space mission specially manned mission for Moon and Mars. And we have to prove globally that we are capable of doing all type of space research.Best of Luck ISRO.
As a Civil Service aspirant more project from ISRO we have to learn more but for development of our we can take this extra burden...

from:  Kr. Bhaskar Bhushan
Posted on: Dec 22, 2013 at 23:52 IST

This mission will be prove our capability to develop indigenous
cryogenic engine and also provide a strong technological base for
developing more heavy and powerful cryogenic engines such as for GSLV
Mark-3. All the best!

from:  Ila Agnihotri
Posted on: Dec 22, 2013 at 22:30 IST

All the very best to ISRO. You are making the country proud.
This is a very interesting development.
-

from:  satish
Posted on: Dec 22, 2013 at 16:09 IST

ISRO has money, lot of resources but they still lags behind schedules,
even spending money why we are lagging behing many space companies, if
we take example SpaceX which recently entered into space industry they
have achieved this technology in their first try but we are not
aggressive in developing technologeis even spending money but we are
wating hell lot of time in aquiring the required skills.. heard like
ISRO recruits all best skilled personnel but they really work like
typical indian govt way.. people should change their mind set and move
forward aggressively, in news i see lot of opportunity in this geosync
orbit to make money but ISRO is loosing this opportunity, wake up
scientists and change your mindset and work like working in a private
organization

from:  karteek
Posted on: Dec 22, 2013 at 00:42 IST
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