2019-03-01 09:13:01

An aircraft powered only by a fuel cell and batteries is to undergo flight testing later this year. The prototype craft, developed by Boeing’s European research centre in Madrid, Spain, is fitted with a proton-exchange membrane fuel cell that drives an electric motor coupled to the propeller. Lithium-ion batteries will kick in to provide extra power during take-off and climb. Taking the same route as Christopher Columbus 500 years ago, a catamaran last week became the first completely solar-powered boat to cross the Atlantic. The Sun21, built by the Swiss Transatlantic21 Association, arrived in Miami, Florida. on 29 March,