HyShot

HyShot is a research project of The University of Queensland, Australia Centre for Hypersonics, to demonstrate the possibility of supersonic combustion under flight conditions using two scramjet engines, one designed by The University of Queensland and one designed by QinetiQ (formerly the MOD's Defence Evaluation & Research Agency).
Overview.
The project has involved the successful launch of one engine designed by The University of Queensland, and one launch of the scramjet designed by the British company QinetiQ. Each combustion unit was launched on the nose of a Terrier-Orion Mk70 sounding rocket on a high ballistic trajectory, reaching altitudes of approximately 330 km. The rocket was rotated to face the ground, and the combustion unit ignited for a period of 6–10 seconds while falling between 35 km and 23 km at around Mach 7.6. The system is not designed to produce thrust.
The carrier rocket for the HyShot experiments was composed of a RIM-2 Terrier first stage (6 second burn, 4000 km/h) and an Orion second stage (26 second burn, 8600 km/h, 56 km altitude). A fairing over the payload was then jettisoned. The package then coasted to an altitude of around 300 km. Cold gas nitrogen attitude control thrusters were used to re-orient the payload for atmospheric reentry. The experiments each lasted for some 5 seconds as the payload descended between approximately 35 and 23 kilometers altitude, when liquid hydrogen fuel was fed to the scramjet. Telemetry reported results to receivers on the ground for later analysis. The payload landed about 400 km down range from the launch site, at which time its temperature was still expected to be about 300 degrees Celsius, which may be enough to cause a small brush fire and thereby make spotting and recovery easier even though a radio beacon was in the payload.
There has been much analysis of the data obtained in flight and comparison with results from experiments conducted in ground-testing facilities.
Legacy.
The team continue to work as part of the Australian Hypersonics Initiative, a joint program of The University of Queensland, the Australian National University and the University of New South Wales' Australian Defence Force Academy campus, the governments of Queensland and South Australia and the Australian Defence Department.
The Hyshot program spawned the HyCAUSE (Hypersonic Collaborative Australian/United States Experiment) program : a collaborative effort between the United States’ Defense Advanced Research Projects Agency (DARPA) and Australia's Defence Science and Technology Organisation (DSTO), also representing the research collaborators in the Australian Hypersonics Initiative (AHI).
All tests were conducted at the Woomera Test Range in South Australia.
HIFiRE program.
The Hypersonic International Flight Research Experimentation (HIFiRE) program was created jointly by DSTO and the Air Force Research Laboratory (AFRL). HIFiRE was formed to investigate hypersonic flight technology, the fundamental science and technology required, and its potential for next generation aeronautical systems. This will involve up to ten flights with The University of Queensland involved in at least the first three: