Will we ever see another quadjet airliner? On the horizon, we have the Boeing 777X set to debut later this decade. This is an ...

The aircraft's dimensions are arguably the most impressive part, with a wingspan of 110 feet 4 ... engines, each delivering 6,722 pounds of thrust. The Falcon 8X was designed with passenger ...

The state-of-the-art engine's successful Mach 4 flight (3,106 mph / 5,000 km/h ... and Space Transportation "aims to have a full-sized supersonic passenger jet ready for its maiden flight in ...

A Chinese commercial aerospace company conducted the first test flight of a detonation ramjet engine on Tuesday, designed for an aircraft it says ... 5,000km/h or Mach 4 – four times the speed ...