The HSTDV is an unmanned scramjet demonstration aircraft for hy...
wikipedia - 07 Sep 2020The HSTDV is an unmanned scramjet demonstration aircraft for hypersonic speed flight. It is being developed as a carrier vehicle for hypersonic and long-range cruise missiles, and will have multiple civilian applications including the launching of small satellites at low cost. The HSTDV program is run by the Indian Defence Research and Development Organisation.[1][2][3]