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In the early nineties, with the collapse of the Soviet Union, India was forced to develop independent launching vehicles. India originally tried to buy the technology to build a cryogenic upper stage from Russia, but was denied, under pressure from United States and other Western countries.
With the development of indigenous Cryogenic engine, India became the sixth country in the World to posses the technology, which could be potentially used for civilian and military purposes.
Indian GSLV generally uses L40 liquid strap on boosters and old Soviet KVD 1 upper stage. But even though Indian military and ballistic missile programs were successful, as recently evident with the successful launch of Agni V ICBM, its civilian rocket and space program were mediocre at best.
The Polar Satellite Launch Vehicle (PSLV), a launcher vehicle used previously to launch civilian satellites was used as a model of GSLV programs, but it was not successful. Multiple versions of GSLV were launched in the last decade, with more than half of them failing due to technical difficulties. A brief stint of success in 2003- 04 was followed by successive failures.
With an unprecedented failure rate, GSLV is gradually on its way to be the costliest misadventure of Indian strategic and space sector. The eighth launch is scheduled in 2013.
The Indian Space Research Organisation (ISRO) is also secretive and tightlipped about capability and weight of the satellites and why India is still unsuccessful in launching communication satellites more than 3000 KG, 36 Transponder class, whereas the nearby competitors like Japan and China, not to mention USA, Russia and European Space Agency have already moved on to triple that size.
There is no clarity and accountability when it comes to tax payer's money spent on space research, and no heads roll even when there are repeated failures. The lack of purpose is also evident as India lacks fixed and dedicated plan in the Space sector.
However that argument and logic falls flat as India is already planning for its second lunar mission in early 2014, Chandrayaan 2, and possibly a manned space mission by 2017.
India's notorious reliance on Russian hardware is also a major hindrance when it comes to further cooperation with the West. Only with the benefit of hindsight would we be able to determine the trajectory of India's space co-operation with the West, or whether it takes any specific direction, but at this present point of time, it is safe to assume, that without any clear plan, or white paper, India's current space prospects are quite grim, and will continue in the chaotic and headless way for the near foreseeable future.
the current cryogenic engine is CE 20 which produces 200 KNs of thrust..
Another cryo, CE-60 produces 600kN thrust is under development.
I was talking about the semi cryo engine SC200 that produces 2000 kN of thrust intented for replacing liqiud fueled L110 in mk3
I am posting from mobile...pls refer isro annual report from isro website for details....
kindly give link
cryogenic engine
maharaj ji if you have not noticed that this topic has already sold on pdf for 14 days and 11 pages...................SLV,ASLV and PSLV has russian connections??I ed!!!!
We have enough expertise in solid fuel..Why use cryogenic engines for our ICBM??
I always heard vice-versa in this Forum!!!!
PSLV is a 'model' for GSLV???
Multiple versions of GSLV??
there are only 2...mk1 and 2
The intention of author become clear here
9000 kg GTO satellites??The author is surely a moron!!
Biggest joke I have ever heard!!!
WTF??
If we have the capability we would really do it!!!
To AJTR: post better CR@p next time.....this wont sell in this forum!!!
maharaj ji if you have not noticed that this topic has already sold on pdf for 14 days and 11 pages...................
maharaj ji if you have not noticed that this topic has already sold on pdf for 14 days and 11 pages...................
PSLV is a 'model' for GSLV???
Multiple versions of GSLV??
there are only 2...mk1 and 2
9000 kg GTO satellites??The author is surely a moron!!
Biggest joke I have ever heard!!!!
The indian GSLV (Geostationary Launch Vehicle) series are launch vehicles in the 2500 kg to GTO class, which feature a unusual combination of different kind of stages. The first stage consists of a large solid rocket, derived from the PSLV first stage.
Another source
GSLV uses major components that are already proven in the Polar Satellite Launch Vehicle (PSLV) launchers in the form of the S125/S139 solid booster and the liquid fueled rocket engine Vikas engine.
So correct me if I am wrong. GSLV 1st stage is the same as PSLV 1st stage with boasters made up of PSLV's 2nd stage.
Look under "Type"
There are no less then 4 versions of GSLV.
Mk1, Mk1 (2), Mk1 (3), Mk2
From another source.
GSLV Mk I (a) - This variant had a 125 t (S-125) first stage and was capable of launching 1500 kg into geostationary transfer orbit.This is retired.
GSLV Mk I (b) - This variant had 139 t (S-139) first stage and improved fuel in the strap-on boosters & second stage. This variant can launch 1900 kg into geostationary transfer orbit. This is retired.
GSLV Mk I (c) - This variant has a 15 tonne Russian third stage. GSLV-F06 (flight 6) is the only attempted launch of the Mark I(c) version to date.
GSLV Mk II - This variant uses an Indian cryogenic engine and is capable of launching 2500 kg into geostationary transfer orbit. Previous GSLV vehicles (GSLV Mk.I) have used Russian cryogenic engines.
China CZ-3B/E - 5.5tons to GTO - since 2007
Japan H-2B - 8tons to GTO - since 2009
USA Atlas V - 8.9tons to GTO
USA Delta IV Heavy - 12.9tons to GTO
Russia Proton - 6.3tons to GTO
Ariane 5 - 8tons to GTO
Not entirely wrong, but his point is very valid.
No joke. Fact speaks for itself. No need for personal insults. India's space program is stuck in Low Earth Orbit since 2004 !
Blue flame and ice formation on edges???