BENGALURU: The Indian Space Research Organisation ( Isro ), on Thursday said it has successfully completed the hot test of cryogenic engine for the GSLV-F11 , which is scheduled to launch the GSAT-7A in November this year.

A hot test is a ground test conducted to check for the safety and also whether or not all design parameters are met. Unlike a cold test where all the propellants are checked for, a hot test involves firing of the engine in test conditions.

The test, conducted at the Isro Propulsion Complex in Mahendragiri on August 27, was carried out for 200 seconds during which the engine operated in the nominal and 13% uprated thrust regimes.

“All the propulsion parameters during the test were found satisfactory and closely matched with predictions. For the first time, indigenously developed copper alloy is used in this engine,” Isro said.

The cryogenic engine will now be integrated with the propellant tanks, stage structures and associated fluid lines to realise the fully integrated flight cryogenic stage.

The GSAT-7A is an advanced communication satellite, expected to serve dual needs for India.

