One flight attendant on the Helios Airways flight remained conscious as they desperately tried to steer the plane.

"As the entire aerospace industry struggles with its goals to decarbonise aviation, I hope Helios Horizon sends a clear signal that zero-emission flight doesn't have to be an obstacle to ...

The cover image shows the first flight of the NASA/AeroVironment Helios prototype that took place on Sep. 8, 1999 from Edwards Air Force Base, California. Handling and performance were test under ...

Additionally, the latest Block III iteration uniquely includes three Rolls Royce 3-megawatt generators on the Flight 11A ships with Royce’s 4-megawatt generators. The incorporation of HELIOS on ...