: Flight data analysis, simulation tests to reveal the cause of the GSLV rockets failure #IndiaNEWS #Space Analysis of flight data of the recently failed Indian rocket GSLV-F10 and simulation tests

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Flight data analysis, simulation tests to reveal the cause of the GSLV rockets failure #IndiaNEWS #Space
Analysis of flight data of the recently failed Indian rocket GSLV-F10 and simulation tests are to be done to arrive at the cause of the failure. The failure analysis report detailing the cause of the rockets failure is expected to be completed by the end of this month, it is learned.



Experts in rockets/propulsion from Indian Space Research Organisation (ISRO) and also from outside are studying the data sent by the failed GSLV-F10 rocket to arrive at the failure cause, said an official of ISRO.



On August 12, Indias Geosynchronous Satellite Launch Vehicle-F10 (GSLV-F10) carrying the countrys first Geo-Imaging Satellite (GISAT-1) failed to complete its mission as its cryogenic engine did not ignite.



The failure resulted in the loss of rocket and satellite both valued over several hundred crores of rupees and also the revenue opportunity for 10 years.



GSLV-F10 launch took place on August 12, 2021 at 0543 Hrs IST as scheduled. Performance of first and second stages was normal. However, Cryogenic Upper Stage ignition did not happen due to technical anomaly. The mission couldnt be accomplished as intended, ISRO said in a statement.



The GSLV-F10 is a three-stage/engine rocket. The core of the first stage is fired with solid fuel and the four strap-on motors by liquid fuel. The second is the liquid fuel and the third is the cryogenic engine.



A whole lot of data has to be studied and simulation tests have to be done to arrive at the actual cause of failure. After the simulation tests are done, the reports will be reviewed by an expert panel, the official told IANS preferring anonymity.



The final report on the failure is expected by the end of this month.



Based on that, whatever corrective actions need to be taken will be taken as other satellites are planned to be sent up by a similar rocket, the official added.



Refuting reports that the cryogenic engine was a reengineered Russian cryogenic engine, the official said: Indias cryogenic engine started well ahead of the receipt of such engines from Russia. Even the GSLV rockets that flew with Russian engines have failed. There may be some similarities between Indian and Russian engines. But India designed its own cryogenic engine for the GSLV MkII rocket.



According to the official, the cryogenic engine for Indias bigger rocket GSLV MkIII was also designed by the ISRO engineers which is a slightly simpler technology.



But designing and building a lower powered engine for GSLV-MkII with a similar technology will take another 12 years. Moreover there is nothing majorly wrong with the cryogenic engine for GSLV-MkII. Several GSLV-MkII rockets have flown successfully, the official said.

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