London-based startup AltoVolo is aiming high with its entry in the developing eVTOL space. It plans to offer a powerful ...

A British electric vertical take--off and landing (eVTOL) company called AltoVolo presented the Sigma, a hybrid personal ...

In eVTOL Testbed, Diamond To Demo Hybrid Hydrogen-Electric Powertrain is published in Advanced Air Mobility Report, an ...

A little over a year since its Dornier 228 testbed last flew, advanced propulsion developer ZeroAvia has disclosed plans to convert the twin-turboprop into a liquid hydrogen test vehicle.