A United States-based firm has pitched the idea for a hypersonic aircraft for cargo delivery that can travel at super-fast ...

[Benn Jordan] decided to try reworking that concept by replacing headphones with a directed sound projector. The key to the project is the use of hypersonic sound arrays. These essentially use ...

Two firms based in the United States have joined forces to develop unmanned aircraft systems (UAS) or drones that can fly at hypersonic speeds or five times the speed of sound. Alabama-based ...