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In March 2010, ISRO conducted the flight testing of its new sounding rocket: Advanced Technology Vehicle (ATV-D01), weighing 3 tonnes at lift-off, a diameter of {{convert|.56|m|abbr=on}}, and a length of ~{{convert|10|m|abbr=on}}.<ref>{{Cite web| url = http://www.ias.ac.in/public/Resources/meetings/annmeet/73am_talks/bnsuresh/img12.html| title = "Space Transportation Systems: What the future beholds" by Dr. B N Suresh| date = 2 November 2007| access-date = 23 December 2015| archive-date = 1 August 2020| archive-url = https://web.archive.org/web/20200801153241/https://www.ias.ac.in/public/Resources/meetings/annmeet/73am_talks/bnsuresh/img12.html| url-status = live}}</ref> It carried a passive scramjet engine combustor module as a test-bed for demonstration of air-breathing propulsion technology.<ref>{{Cite web| title = Successful flight testing of advanced sounding rocket - ISRO| url = http://www.isro.gov.in/update/03-mar-2010/successful-flight-testing-of-advanced-sounding-rocket| website = www.isro.gov.in| access-date = 2015-12-06| archive-date = 2016-09-09| 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>
In January 2012, ISRO announced that a scaled prototype, called '''Reusable Launch Vehicle-Technology Demonstrator''' ('''RLV-TD'''), was approved to be built and tested.<ref name="Design Approval">{{cite news |url=http://www.dnaindia.com/bangalore/report-isro-s-design-of-reusable-launch-vehicle-approved-1633779/ |title=ISRO's design of reusable launch vehicle approved |access-date=2015-12-25 |archive-date=2020-08-01 |archive-url=https://web.archive.org/web/20200801153214/https://www.dnaindia.com/bangalore/report-isro-s-design-of-reusable-launch-vehicle-approved-1633779 |url-status=live }}</ref> The aerodynamics characterization on the RLV-TD prototype was done by [[National Aerospace Laboratories]] in India. The RLV-TD is in the last stages of construction by a Hyderabad-based private company called CIM Technologies. The fixed landing gear for the RLV-TD was supplied by Timetooth Technologies. The full-scale RLV is expected to use retractable landing gear.<ref>{{Cite news |date=2024-06-26 |title=RLV re-entry mission to use GSLV with PSLV last stage; landing gear to change & more |url=https://timesofindia.indiatimes.com/india/rlv-re-entry-mission-to-use-gslv-with-pslv-last-stage-landing-gear-to-change-more/articleshow/111267553.cms |access-date=2024-06-27 |work=The Times of India |issn=0971-8257}}</ref> <ref>{{Cite web | last= Yadav |first=Kamal |date=2024-08-05 | title=India unveils Zorawar, a lightweight tank by DRDO and L&T, highlighting rapid development and advanced defense technology |url=https://www.techarctic.com/isro-completes-3rd-testing-of-its-rlv-lex-03-spacecraft-for-its-future-missions/ |website=TechArctic}}</ref>
By May 2015, engineers at the [[Vikram Sarabhai Space Centre]] (VSSC) in [[Thumba Equatorial Rocket Launching Station]] were installing thermal tiles on the outer surface of the RLV-TD to protect it against the intense heat during [[Atmospheric entry|atmospheric reentry]].<ref name="FinalTouches2015">{{cite news|title=Navigation satellite system by March|url=http://www.thehindu.com/news/cities/Thiruvananthapuram/navigation-satellite-system-by-march/article7821248.ece|access-date=2015-12-24|archive-date=2020-11-08|archive-url=https://web.archive.org/web/20201108180935/https://www.thehindu.com/news/cities/Thiruvananthapuram/navigation-satellite-system-by-march/article7821248.ece|url-status=live}}</ref> This prototype weighs around 1.5 tonnes and flew to an altitude of 65 km<ref name="FinalTouches2015"/> mounted on top of an expendable solid booster HS9.<ref name="MVD">{{Cite web|title = Modeling &Control of Launch Vehicles|url = http://www.sc.iitb.ac.in/~pdsc2014/MVD_talk.pdf|website = www.sc.iitb.ac.in|access-date = 2015-12-06|archive-date = 2015-12-24|archive-url = https://web.archive.org/web/20151224052512/http://www.sc.iitb.ac.in/~pdsc2014/MVD_talk.pdf|url-status = live}}</ref><ref name="Brahmand 2010">{{cite web |url=http://www.brahmand.com/news/Reusable-Launch-Vehicles-%EF%BF%BD-The-future-of-space-missions/5595/3/15.html |title=Reusable Launch Vehicles |work=Brahmand.com |date=November 25, 2010 |access-date=2014-10-22 |url-status=dead |archive-url=https://web.archive.org/web/20141101073815/http://www.brahmand.com/news/Reusable-Launch-Vehicles-%EF%BF%BD-The-future-of-space-missions/5595/3/15.html |archive-date=November 1, 2014 }}</ref>
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