Today's launch of GSLV-F08 from Satish Dhawan Space Centre, Shriharikota marked its 12th flight of Geosynchronous Satellite Launch Vehicle GSLV-
F08 and sixth flight with indigenous Cryogenic upper stage engine.
Cryogenic engines, which use liquid hydrogen and liquid oxygen as fuel and give the most thrust, are usually prepared for the upper stage—the last stage of a rocket—because this stage provides 50 percent of the velocity of 10.2km per second needed at the point of injection of a satellite.
GSLV-F08 Successfully launches GSAT-6Ahttps://t.co/YWvgUeyETw— ISRO (@isro) March 29, 2018
The GSLV-F08, weighing 415.6 tonnes and with a height of 49.1 is a three-stage liquid propelled rocket comprising the high thrust Vikas engine and the electromechanical actuation system replacing the electro-hydraulic actuation system – an ISRO report mentioned.
GSAT 6A satellite will provide mobile communications to India by multibeam coverage facility and will also provide a platform for developing technologies like 6 m high power S-Band transmission, unfurlable Antenna, handheld ground terminals and network management techniques that could be useful in satellite-based mobile communication applications.
The GSAT6A will complement the services provided by the GSAT6 satellite which is already in the orbit and augment and support two-way communication. The mission life of spacecraft planned is about 10 years.