So although there are azure skies on the distant horizon, in the short range the airspace is getting crowded with new competitors and new planes, and there may not be enough business to keep them all flying.
From this Iron Age hill fort, built in 400 BC, the views sweep down from the North York Moors and over to the Vale of York and the Vale of Mowbray to the distant Pennines, a low-rise mountain range sometimes dubbed "the backbone of England".