India is the fourth country to demonstrate the flight testing of Scramjet Engine after the United States, Russia and European Space Agency.
The HSTDV is an unmanned scramjet demonstration aircraft for hypersonic speed flight, it can cruise at a speed of mach 6 and move up to an altitude of 32.5 km (20 miles) in 20 seconds, the sources said.
The HSTDV is capable of powering missiles to attain a speed of around Mach 6 or six times the speed of sound, the officials said, adding only a very few countries like the United States, Russia and China have such a capability.
It will be powered by a supersonic combustion ramjet (Scramjet) engine that takes oxygen from the atmosphere and burns liquid hydrogen.
ISRO launched 12 Indian, 22 foreign satellites and successfully flight-tested India's first winged-body aerospace vehicle.
The launch of the crewed space mission, Gaganyaan, is being planned before the next Independence Day and this will be proceeded by two uncrewed missions, Lok Sabha was informed on Wednesday.
"ISRO has been launching at least one satellite every month, so our calender is perennially packed and at this point of time it looks difficult to launch the South Asian satellite in December. It could get delayed by a month," a senior official said.
Integrating supersonic missile with Sukhoi requires about $50 million; engine modifications, so many works given to Russians.
Integrating supersonic missile with Sukhoi requires about $50 million; engine modifications, so many works given to Russians.
The rocket is almost 49 meters high -- as much as a 17-floor building. It weighs 415 tons -- as much as the combined weight of 80 full grown elephants.