Why early airplanes had their propellers on the back, but not most have it on the front, is Not What You Think ...

Airbus has unveiled a hydrogen-powered prototype with four electric engines, resembling old propeller planes from the outside – but inside, it hides futuristic technology based on fuel cells.

Propeller planes that once dominated the skies could again serve some of the world’s busiest flight routes under Airbus’s latest plans to slash carbon emissions. The manufacturing giant revealed last ...