Defence Research and Development Laboratory: Difference between revisions

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== History ==

In 1958, the Indian government of India constituted a team of Indian engineers, mostly from the [[Indian Ordnance Factories Service]] - called the '''Special Weapons Development Team''' - to research guided missile weapons development. It was founded by [[S. P. Chakravarti]], the father of Electronics and Telecommunication engineering in India, who also founded the DLRL and the [[Electronics and Radar Development Establishment]] (LRDE).<ref>{{cite journal |url=https://in.booksc.eu/book/53133498/850b31 |title=Prof. S.P. Chakravarti (1904–1981) |author=Mitra, S.N. |journal=IETE Journal of Research |volume=28 |issue=8 |date=August 1982 |pages=385–390 |doi=10.1080/03772063.1982.11452762 |url-access=subscription }}{{Dead link|date=December 2024 |bot=InternetArchiveBot |fix-attempted=yes }}</ref> This team was later expanded into DRDL, a full-fledged laboratory, in June 1961, at the campus of Defence Science Centre, Delhi.<ref name="drdl-about">{{Cite web |url=http://drdo.gov.in/drdo/labs/DRDL/English/index.jsp?pg=HistoricalBG.jsp |title=Historical Background |website=Defence Research and Development Laboratory |access-date=2012-05-23 |archive-url=https://web.archive.org/web/20120210112328/http://drdo.gov.in/drdo/labs/DRDL/English/index.jsp?pg=HistoricalBG.jsp |archive-date=2012-02-10 }}</ref><ref name=":0">{{Cite web |last=Siddiqui |first=Huma |date=2022-08-15 |title=From Agni to BrahMos: A look at India's deadly missile arsenal |url=https://www.financialexpress.com/business/defence-instruments-of-skyfall-how-missiles-shaped-75-years-of-india-2629276/ |access-date=2025-01-21 |website=Financialexpress |language=en}}</ref> It later shifted to Hyderabad after the state government granted them the former Nizam's army barracks. This was the genesis of the '''Defence Research and Development Laboratory (DRDL)''',<ref>{{cite web |url=http://www.frontlineonnet.com/fl2603/stories/20090213260309700.htm |title=Missile shield |access-date=2012-05-31 |archive-url=https://web.archive.org/web/20130207034302/http://www.frontlineonnet.com/fl2603/stories/20090213260309700.htm |archive-date=2013-02-07 }}</ref> under the [[Defence Research and Development Organisation]] (DRDO).

=== Vision and mission ===

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=== Hypersonic technology ===

[[File:Scramjet_engine_for_Hypersonic_Cruise_Missile.jpg|thumb|Active Cooled Scramjet Subscale Combustor ground testing in April 2025]]

A 120-second ground test of an Active Cooled [[Scramjet]] Subscale Combustor for next-generation missiles was conducted by the DRDL at Scramjet Connect Test Facility at [[Hyderabad]] on 21 January 2025.<ref>{{cite news |date=21 January 2025 |title=DRDO conducts Scramjet Engine Ground Test |url=https://pib.gov.in/PressReleasePage.aspx?PRID=2094886 |access-date=21 January 2025 |publisher=Press Information Bureau |agency=Ministry of Defence, Government of India.}}</ref><ref>{{Cite web |last=Philip |first=Snehesh Alex |date=2025-01-21 |title=Boost for India as DRDO successfully conducts scramjet engine ground test for hypersonic missiles |url=https://theprint.in/defence/boost-for-india-as-drdo-successfully-conducts-scramjet-engine-ground-test-for-hypersonic-missiles/2455926/ |access-date=2025-01-21 |website=ThePrint |language=en-US}}</ref> The test showed stable combustion and successful ignition. Together with the [[Department of Science and Technology (India)|Department of Science and Technology]] and the private sector, DRDL has taken the lead in developing an improved ceramic [[thermal barrier coating]] (TBC), endothermic scramjet fuel, and a long-duration scramjet engine. A novel flame stabilization method was added to the scramjet combustor, which maintains a constant flame inside the combustor at air speeds greater than 1.5 km/s. In addition to improving cooling, the endothermic fuel shortens ignition times. With its excellent temperature resistance, the cutting-edge ceramic TBC can function above the melting point of steel.<ref>{{Cite web |last=Ray |first=Kalyan |date=21 January 2025 |title=DRDO achieves milestone on scramjet engines needed for hypersonic missiles |url=https://www.deccanherald.com/india/drdo-achieves-milestone-on-scramjet-engines-needed-for-hypersonic-missiles-3366484 |access-date=2025-01-21 |website=Deccan Herald |language=en}}</ref><ref>{{Cite web |last1=Sharma |first1=Shivani |last2=Negi |first2=Manjeet |date=2025-01-21 |title=India achieves milestone in hypersonic technology with 1st scramjet test success |url=https://www.indiatoday.in/india/story/india-achieves-milestone-in-hypersonic-technology-first-scramjet-test-success-2668210-2025-01-21 |access-date=2025-01-21 |website=India Today |language=en}}</ref>