Indian GSLV will truly ‘arrive’ this month
When launched, it will mark the culmination of more than two decades of hard work.
Enters the all-Indian GSLV, finally, later this month. The GSLV-F05
flight coming up on August 28 or 29 will be its first regular,
full-service or 'operational' one.
When launched, it will be the culmination of more than two decades of
hard work — punctuated with jinxes and tribulation — for developing an
indigenous medium-lift satellite launcher.
GSLV-F05 will be the fourth flight powered by the Indian cryogenic stage
and its preceding two in the last two years have been successful. F05
will carry the roughly 2,000-kg weather satellite, INSAT-3DR, follow-on
to INSAT-3D which entered space in 2013.
The first six GSLVs starting with D1 of 2000 used the Russian cryogenic
engines in the third and last stage and were called GSLV-MarkI. The
first GSLV propelled by an Indian cryogenic engine and distinguished as
MarkII, was tested about ten years later, in April 2010, but flight D3
failed.
“The flight of GSLV-F05 will be truly significant milestone in our
launch vehicle programme. It signals India’s feat of developing its own
cryogenic technology for its launchers. The technology is so complex and
our success signifies the confidence of handling this tough challenge,”
said a senior official in the Indian Space Research Organisation.
GSLV-Mk2 however can put only satellites weighing up to 2,200 kg into
geostationary space. At least four more of them are in the making now.
ISRO, meanwhile, has moved towards 3,000-kg class communication
spacecraft with an eye on making 4,000-kg satellites.
Foreign launches
These heavier ones need to be put into space on a foreign launcher such
as the European Ariane. GSAT-18, due in October and next year’s GSAT-17
are confirmed while the heavy 4-tonne GSAT-11 will also need a foreign
launch.
Another official said the plan is to do two GSLV launches a year from
next year, apart from doubling the PSLV rate to ten or a dozen a year.
He agreed that “Ultimately, GSLV-MarkIII [that is under development to
do handle 4,000-kg spacecraft] is more important to us than Mark-II.”
It will mean that all ISRO satellites can be launched from within the country.
Test flight in December
The first test flight of Mark-III, also knows as LVM3, is slated for December and it will take a few more flights and years to become regular.
As the GSLV numbers go up, the official said it increases the onus on
suppliers in public and private industry, especially for cryogenic
engines, tanks and rocket stages. Indicatively, the smaller PSLV gets
about 80 per cent of its supplies from industryThe first test flight of Mark-III, also knows as LVM3, is slated for December and it will take a few more flights and years to become regular.
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