Reference News Network reported foreign media on June 14 that India achieved an important milestone on June 12. The Indian Defense Research and Development Organization (DRDO) successfully launched a hypersonic technology validation vehicle (HSTDV) from the coast of Audisha State, which will provide a series of key technologies for future military and civilian equipment. The HSTDV was launched from Launch Pad 4 of the Comprehensive Test Site on Dr. Abdul Karam Island, Balasol District, Audi Shabang.
Indias Zee News website reported on June 12 that DRDO said in a press release that the aircraft was successfully launched at 11:27 a.m. on the 12th. Radars, telemetry stations and photoelectric tracking sensors track the whole flight process of HSTDV. DRDO said the data collected by HSTDV will be analyzed by the organizations scientists to validate key technologies.
Reported that the HSTDV is equipped with a scramjet and can cruise at Mach 6. It has many civilian uses, and can also be used to launch satellites and long-range cruise missiles at low cost. At present, only the United States, Russia and China have the technology to develop hypersonic missiles, and India has become the fourth country to join the elite club.
According to DRDO, the development of scramjet is an important way to realize HSTDV. The engine is designed to use hydrocarbon fuel (kerosene) to make the service use of hypersonic vehicles economically viable. The scramjet used in HSTDV is actually a two-wall structure, with a special alloy facing the inner wall of the combustion zone and another special alloy for the outer wall to provide structural strength. The two alloys are bonded along the surfaces on which they contact each other.
The mission of HSTDV involves a large number of mechanical devices, including intake baffle device, separation device, deployment device of wing and tail of cruise vehicle, and nozzle baffle device. The design of these devices should be in line with the high temperature environment for hypersonic flight.
The media pointed out that the material chosen for HSTDV was to maintain the necessary strength level at higher temperatures. The material of the engine wall needs to be able to withstand high temperature, while the aircraft body is made of a titanium alloy. Carbon composites are used in the high temperature area. DRDO claims that thermal barrier coatings (TBC) can reduce the surface temperature to within the materials endurance range. They carried out high temperature tests and corrosion tests on many thermal barrier coatings, and found that the ceramic coatings developed were most suitable for this purpose.
Hypersonic Technology Verification Vehicle (HSTDV) Model (Yahoo News Website, USA)
Source: Responsible Editor of Reference Message Network: Yao Wenguang_NN1682