Aircraft without pilots could be flying commuters to UK regional airports within a decade - possibly using hydrogen as fuel making them environmentally friendly. British aircraft manufacturer Britten-Norman is working alongside technology company Bear Blue to first develop a semi-autonomous plane with just one pilot, followed by an aircraft with no humans on the flight deck. The government has pledged £1.8 million to the project, which could see the first aircraft carrying passengers by the mid 2020s. The Civil Aviation Authority, who regulate Britain's skies are currently working on guidelines for 'operations that present an equivalent risk to that of...