ISRO successfully tests Chandrayaan-2 Mission rocket's cryogenic engine

The crucial test was conducted on 11 October for 25 seconds at the space agency's propulsion complex.

India successfully tested the cryogenic engine for the heavy rocket that would launch the country's second moon mission on 3 January 2019, the space agency said on 12 October.

"The cryogenic engine of the Geo Satellite Launch Vehicle (GSLV MK-III) in the upper stage has been tested for the Chandrayaan-2 Mission," said the state-run Indian Space Research Organisation (ISRO) in a statement here.

Representational image. PTI

Representational image. PTI

The crucial test was conducted on 11 October for 25 seconds at the space agency's propulsion complex in Tamil Nadu's Mahendragiri, 685km southwest of Chennai.

"The upper stage of the heavy rocket is powered by the cryogenic engine, which develops a nominal thrust of 186.36 kN (kilo Newton) with a specific impulse of 442 seconds in a vacuum," noted the statement.

The supercooled engine operates on gas generator cycle using liquid oxygen and hydrogen (LOX & LH2) or oxidizer.

"The test demonstrated steady state operation of the engine," said the statement.

The flight acceptance hot test of the cryo was performed at the high-altitude test facility in the complex.

"The performance of all engine subsystems was observed to be normal during the hot test," added the statement.

The second lunar mission will be launched from the rocket port at Sriharikota in Andhra Pradesh, about 90km northeast of Chennai, with a lander and rover a decade after the first moon mission in October 2008 around its orbit.

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