Editing Scramjet (section)

===2020s===
[[File:Scramjet engine for Hypersonic Cruise Missile.jpg|thumb|DRDO scramjet combustor ground testing for 1,000 seconds. |218x218px]]On 27 September 2021, DARPA announced successful flight of its [[Hypersonic Air-breathing Weapon Concept]] scramjet [[cruise missile]].<ref name="DARPA 2021-09-27">{{cite news |url=https://www.darpa.mil/news-events/2021-09-27 |title= DARPA'S Hypersonic Air-breathing Weapon Concept (HAWC) Achieves Successful Flight |work=[[DARPA]] press release |publisher=[[DARPA]] |date=27 September 2021 }}</ref> Another successful test was carried out in mid-March 2022 amid the [[2022 Russian invasion of Ukraine|Russian invasion of Ukraine]]. Details were kept secret to avoid escalating tension with [[Russia]], only to be revealed by an unnamed [[The Pentagon|Pentagon]] official in early April.<ref>{{Cite web|url=https://www.cnn.com/2022/04/04/politics/us-hypersonic-missile-test/index.html|title = US tested hypersonic missile in mid-March but kept it quiet to avoid escalating tensions with Russia|website = [[CNN]]| date=5 April 2022 }}</ref><ref>{{Cite web | title=Second Successful Flight for DARPA Hypersonic Air-breathing Weapon Concept (HAWC) | url=https://www.darpa.mil/news-events/2022-04-05 | access-date=2025-01-11 | website=www.darpa.mil}}</ref> On 25 April 2025, [[DRDO]] successfully completed over 1,000 seconds of ground testing of a subscale active-cooled scramjet combustor.<ref>{{Cite web |last=Negi |first=Manjeet |date=2025-04-25 |title=India tests scramjet engine for over 1,000 seconds in hypersonic technology leap |url=https://www.indiatoday.in/india/story/india-tests-scramjet-engine-for-over-1000-seconds-hypersonic-technology-leap-drdo-2715275-2025-04-25 |access-date=2025-04-26 |website=India Today |language=en}}</ref>