are high supersonic, usually referring to Mach five and above, which can usually only be generated using advanced propulsion technology such as ramjet or scramjet engines.
At hypersonic speed
air becomes electrically charged due to chemical changes.
The ultra-rapid air vehicle has been dubbed the "son of Concorde", and the plans show the plane would be propelled vertically by rocket engines to hypersonic speeds
and then hydrogen-powered wing- mounted ramjets would take over and propel the aircraft to its destination.
After the success of these two aircraft, the NACA wanted to study hypersonic speeds
India-Pakistan has little time to act against incoming ballistic or cruise missile having supersonic and hypersonic speeds
The Hypersonic Inflatable Aerodynamic Decelerator, or HIAD, is being developed by NASA's Langley Research Center to decelerate spacecraft from the hypersonic speeds
at which they travel when in space as they enter planetary atmospheres.
Anderson and Passman write well how challenging this request was given the lack of wind tunnel data for flying at hypersonic speeds
as well as developing materials to survive in the high temperature environments above Mach 2.
XS-1 envisions that a reusable first stage would fly to hypersonic speeds
at a suborbital altitude.
The SpaceLiner would take approximately eight minutes to climb to an altitude of some 50 miles, where it will reach the earth's upper atmosphere before gliding back to Earth at hypersonic speeds
of more than 15,000mph.
The third test of the X-51A Waverider was launched Tuesday off the California coast from a B-52 modified bomber aircraft and was to fly for 300 seconds, reaching hypersonic speeds
of Mach 6, but only flew for 16 seconds, according to the Air Force.
Although a variety of rocket-propelled vehicles have flown at hypersonic speeds
After countdown on Virgin Galactic's spacecraft you will travel up to 10 miles above sea level before the roar begins and you and your fellow passengers travel at hypersonic speeds
(five times greater than the speed of sound).