RLV Technology Demonstration Programme: Difference between revisions

Revision as of 14:55, 24 July 2024

Revision as of 14:59, 24 July 2024

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On 3 March 2010, ISRO successfully conducted the [[flight test]] of its new sounding rocket ATV-D01 from [[Satish Dhawan Space Centre]] in [[Sriharikota]]. ATV-D01 weighed 3 tonnes at lift-off and was the heaviest sounding rocket ever developed by ISRO at the time. It was mounted with a passive [[Scramjet]] engine. The [[rocket]] flew for 7 seconds, achieved [[Mach number]] 6 + 0.5 and dynamic pressure 80 + 35 [[kPa]].<ref name="Flight testing of advanced sounding rocket">{{cite news|title=Flight testing of advanced sounding rocket|publisher=[[ISRO]] website|access-date=23 May 2016|url=http://www.isro.gov.in/update/03-mar-2010/successful-flight-testing-of-advanced-sounding-rocket|archive-date=9 September 2016|archive-url=https://web.archive.org/web/20160909115917/http://www.isro.gov.in/update/03-mar-2010/successful-flight-testing-of-advanced-sounding-rocket|url-status=dead}}</ref><ref name="Khul Ke l708">{{cite web | title=ISRO Progresses Towards a Swadeshi Space Plane | website=Khul Ke | url=https://www.khulke.com/roundtable/recorded/642eeb22714e9eae0bbcc7d7 | access-date=2023-09-07 | archive-date=2023-09-07 | archive-url=https://web.archive.org/web/20230907091949/https://www.khulke.com/roundtable/recorded/642eeb22714e9eae0bbcc7d7 | url-status=live }}</ref>

On 28 August 2016, ISRO tested scramjet engine with a five-minute flight. At a height of 20 kilometers, the scramjet engine attached to [[Advanced Technology Vehicle]] was fired. It burnt fuel for five seconds, an important milestone in the development of [[Dual Mode Ramjet]] (DMR) engine under Air Breathing Propulsion Project.<ref>{{Cite web |last=T.S. |first=Subramanian |date=2016-09-28 |title=Scramjet success |url=https://frontline.thehindu.com/science-and-technology/scramjet-success/article9153834.ece |access-date=2024-07-24 |website=Frontline |language=en}}</ref> The scramjet engine weighed 3,277 kg at lift-off. Critical technologies that have been successfully demonstrated include fuel injection systems, air intake mechanisms, air breathing engine igniting at supersonic speed, and holding the flame at supersonic speed. Every aspect of the flight operation followed a pre-programmed sequence. The design and development of a hypersonic engine air intake, a supersonic combustor, materials that can withstand extremely high temperatures, computational tools for simulating hypersonic flow, proper thermal management, and ground testing of the engines are just a few of the technological challenges that ISRO has successfully overcome.<ref>{{Cite news |date=2016-08-28 |title=ISRO successfully tests scramjet engine using oxygen from atmosphere |url=https://timesofindia.indiatimes.com/city/chennai/isro-successfully-tests-scramjet-engine-using-oxygen-from-atmosphere/articleshow/53892013.cms |access-date=2024-07-23 |work=The Times of India |issn=0971-8257}}</ref><ref>{{Cite web |title=ISRO’s Scramjet Engine Technology Demonstrator Successfully Flight Tested |url=https://www.isro.gov.in/ScramjetEngineTechnology.html |access-date=2024-07-23 |website=ISRO |publisher=Department of Space}}</ref>

On 23 July 2024, ISRO effectively concluded the second experimental flight demonstration of air breathing propulsion technology. Air Breathing Propulsion systems were symmetrically placed on both sides of the [[Rohini_(rocket_family)#RH-560|Rohini RH-560]] sounding rocket used in the experiment. The Air Breathing propulsion systems were ignited successfully and the test performed satisfactorily. 110 parameters were extensively watched during the flight to evaluate the propulsion system's performance.<ref>{{Cite web |date=2024-07-23 |title=Isro successfully conducts second test of Air Breathing Propulsion Technology |url=https://www.indiatoday.in/science/story/isro-successfully-conducts-second-test-of-air-breathing-propulsion-technology-2570706-2024-07-23 |access-date=2024-07-23 |website=India Today |language=en}}</ref>