PBS Aerospace, the US subsidiary of Czechia-based PBS Group, is building small jet engines at a new facility to meet growing ...

Rim-driven thrusters turn the normal propeller-motor arrangement inside out; rather than mounting the motor at the center of the propeller, they use a large hollow motor, with the blades attached to ...

There’s a building in Roswell that looks like any other brick warehouse, except for two things: It features a couple of metal cooling towers that don’t match the rest of the building, and there’s an ...