| There have also been joint efforts to build a hypersonic aircraft for commercial purposes. |
| When a particle slams into it at hypersonic speeds, the particle bores its way in and gradually comes to a stop, intact. |
| Behind a hypersonic shock wave the temperature at the leading edge of a hypersonic craft scales inversely with the square root of its radius of curvature. |
| Military analysts said the claimed new weapon could be a hypersonic cruise missile or manoeuvrable warheads. |
| At such hypersonic speeds, planes could fly around the world in a matter of hours. |
| The two main contenders are hypersonic ramjets or scramjets and nanotube-based space elevators. |
