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High altitude test of cryogenic engine successful; ISRO to launch GSLV-D5 in July - The Times of India
THIRUVANANTHAPURAM: Scientists at ISRO's Liquid Propulsion Systems Centre here are hopeful of finishing the work on the indigenous cryogenic engine by May 15 after its recent successful test at the high altitude test facility of the centre. The engine will be taken to Sriharikotta for the launch of geosynchronous satellite launch vehicle GSLV D-5 by July.
"A short-duration test in 3.5 seconds confirmed stable ignition of the cryogenic engine. A simulated high altitude condition was created with high capacity pumps in a vacuum chamber and the test proved successful, which has given us a lot of confidence. The engine will be completely ready by May 15, or at the most May 20, after which it will be taken to Sriharikota," LPSC director M C Dathan told TOI on Wednesday.
"One more HAT test is planned early next month to ensure the readiness of the cryogenic facility though it is not mandatory. A review meet of all senior officials of ISRO establishments will be held at Mahendragiri on April 29 to take stock of the facility," Dathan said.
The cryogenic engine uses a propellant combination of liquid oxygen and liquid hydrogen to develop a thrust of 7.5 tonnes to boost the cryogenic upper stage of GSLV-D5. He said the fluid line checking of the liquid oxygen and liquid hydrogen in propellants would be done at Sriharikota and the GSLV-D5 would be launched to put communication satellite GSAT-14 into orbit in the second week of July.
Vikram Sarabhai Space Centre director S Ramakrishnan said they had come a long way from the failure of the GSLV-D3 launch. "We had narrowed down the failure to the hydrogen fuel booster pumps of the engine. After a series of endurance tests and the latest successful HAT test, the engine is now ready."
He said preparations for the launch of polar satellite launch vehicle, PSLV-C22, were also in full swing.
THIRUVANANTHAPURAM: Scientists at ISRO's Liquid Propulsion Systems Centre here are hopeful of finishing the work on the indigenous cryogenic engine by May 15 after its recent successful test at the high altitude test facility of the centre. The engine will be taken to Sriharikotta for the launch of geosynchronous satellite launch vehicle GSLV D-5 by July.
"A short-duration test in 3.5 seconds confirmed stable ignition of the cryogenic engine. A simulated high altitude condition was created with high capacity pumps in a vacuum chamber and the test proved successful, which has given us a lot of confidence. The engine will be completely ready by May 15, or at the most May 20, after which it will be taken to Sriharikota," LPSC director M C Dathan told TOI on Wednesday.
"One more HAT test is planned early next month to ensure the readiness of the cryogenic facility though it is not mandatory. A review meet of all senior officials of ISRO establishments will be held at Mahendragiri on April 29 to take stock of the facility," Dathan said.
The cryogenic engine uses a propellant combination of liquid oxygen and liquid hydrogen to develop a thrust of 7.5 tonnes to boost the cryogenic upper stage of GSLV-D5. He said the fluid line checking of the liquid oxygen and liquid hydrogen in propellants would be done at Sriharikota and the GSLV-D5 would be launched to put communication satellite GSAT-14 into orbit in the second week of July.
Vikram Sarabhai Space Centre director S Ramakrishnan said they had come a long way from the failure of the GSLV-D3 launch. "We had narrowed down the failure to the hydrogen fuel booster pumps of the engine. After a series of endurance tests and the latest successful HAT test, the engine is now ready."
He said preparations for the launch of polar satellite launch vehicle, PSLV-C22, were also in full swing.
