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India’s successfully launched a communications satellite early today using its Mark II GSLV rocket.
Friday’s launch, designated GSLV F09, was the fifth flight of the Mark II GSLV which debuted in April 2010. This replaced the Mark I, which first flew in 2001 and made its final flight at the end of 2010, introducing an Indian-developed third stage engine instead of a Russian-built engine flown on the Mark I. With this new cryogenic propulsion system, the GSLV Mk.II is a fully indigenous vehicle.
The GSLV’s service has been marred by concerns over its reliability – to date only half of its flights have been successful – however last September’s launch of INSAT-3DR saw it achieve three consecutive successes for the first time.
This launch success significantly strengthens ISRO’s ability to sell its launch services worldwide. They now have three different rocket configurations, all entirely home built, and all with a string of launch successes.