Monday, January 4, 2010
L110 test to follow S200
Full-stage testing of the L110 is to follow the ground firing of S200 later this month. The ground-firing of S200 booster is to take place in the third week of January according to the Chairman of ISRO. This will be followed by the test of the L110 engine in the latter half of January or February at the Liquid Propulsion test facility in Mahendragiri. The Chairman retierated that the first launch of GSLV-Mk III would take place next year.
This test will pave the way for certification of the L110 stage. The L110 is India's first cluster engine stage containing a cluster of 2 Vikas engines similar to those used on the basic GSLV. The cluster engine has already been certified in 2007 and this particular test would be a full-stage test. In many ways, it represents another frontier conquered by the Indian space agency.
The L110 stage generates a thrust of around 1400 kN with a burn time of 240 seconds. The entire stage weighs at 119 tonnes with 9 tins being the empty weight. The stage will ignite 113 seconds after lift-off and burning-out at 312 seconds. The stage is also capable of multiple restarts.
The L110 will in the future be replaced by the common liquid core stage (CLC) powered by the Semi-cryogenic engine under development thus making the GSLV Mk-III more capable and providing a platform to test technologies for the UMLV family.