Flights to the Isles of Scilly will be zero-carbon if the efforts of three companies are successful. The ISSG, Cranfield Aerospace and Britten-Norman are working together to make hydrogen-powered flights from the mainland a reality.

The UK's Skybus, launched 25 years ago, is receiving growing requests for ad hoc charter for its three Islanders and three Twin Otters. The company's ceo Jeff Marston says: "Skybus has a number of approaches on a regular basis but, of course, it depends on the availability of aircraft, particularly during the summer months when the airline is at its busiest."