as first step towards realizing 2 stage orbit (tsto) re-usable launch vehicle, series of technology demonstration missions have been conceived. purpose, winged reusable launch vehicle technology demonstrator (rlv-td) has been configured. rlv-td act flying test bed evaluate various technologies viz., hypersonic flight, autonomous landing, powered cruise flight , hypersonic flight using air-breathing propulsion. first in series of demonstration trials hypersonic flight experiment (hex).
a scaled-down, unmanned version of india s futuristic space shuttle getting final touches @ vikram sarabhai space centre (vssc) in thumba of 20 may 2015. space plane part of rlv-td ready. in process of affixing special tiles on outer surface, needed withstanding intense heat during re-entry earth s atmosphere, ssc director m chandradathan said. isro has tentatively slated prototype s test flight first launchpad of sriharikota spaceport february 2016, date finalized depending on completion of construction. proposed rlv designed in 2 parts; manned space plane rigged atop single stage, booster rocket using solid fuel. rocket expendable while rlv fly earth , land normal airplane after mission.
the prototype- rlv-td weighs around 1.5 tonnes , fly height of 70 km. hex(hypersonic flight experiment) completed on 01:30 gmt, 23 may 2016.
unified launch vehicle
the ulv or unified launch vehicle launch vehicle in development indian space research organisation (isro). project s core objective design modular architecture enable replacement of pslv, gslv mk ii , gslv mk iii single family of launchers.it use semi-cryogenic core stage sc160 sce-200 engine 160 tonne of propellant loading of rp-1 , lox, producing around 2000 kn thrust.the sce-200 engine can clustered heavy launch configuration.the ulv able launch 6000 kg 10,000 kg of payload gto. mark renunciation of liquid stage vikas engine, uses udmh , n2o4, produce toxic fumes.
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