Isro develops cryogenic engine

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Isro’s 2010 space dream should be a technological leapfrog. It will soon launch the GSLV-D3 rocket with an indigenous (Indian) cryogenic stage and engine for the first time in the country’s space history. The space agency has so far been launching GSLV rockets on borrowed Russian technology.
The GSLV launch, if successful, will make India only the fifth or sixth country in the world to launch a rocket with indigenous cryogenic technology. The cryogenic stage is the upper stage of the rocket that will house the cryogenic engine within it.
“Cryogenic technology involves the use of super-cooled liquid fuel to launch heavy rockets like GSLV with the fuel being a mix of liquid hydrogen and oxygen. Launching rockets with liquid fuel of the cryogenic kind has never been easy and Isro will do it this time on its own with the stage and engine developed by itself,” Isro officials said.
Isro achieved a significant milestone recently when it successfully tested the cryogenic stage. The test was conducted for full flight duration of 720 seconds at the liquid propulsion test facility at Mahendragiri, Tamil Nadu. The indigenous cryogenic stage now remains to be tested in actual flight - on the GSLV-D3. The ground test has validated the design robustness and performance adequacy for its use in GSLV.

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