While the race to transform electric vehicles on land speeds up, it is a different story in the sky.Battery technology is not yet able to power even the smallest aircraft beyond 200 kilometres, and in Australia, that is hardly worth the effort.But an Australian aviation startup on a mission to decarbonise air travel is developing a battery that could power a small aircraft to travel 1,000 km using hydrogen, and it already has a customer.AMSL Aero received the first commercial order for its Verti...