airspace modernisation strategy Can drones safely share UK airspace with aircraft? Cranfield and Boeing put it to the test Can drones safely share UK airspace with aircraft? Cranfield and Boeing put it to the test Cranfield University 12 Nov 2026 CAA cuts red tape to accelerate airspace modernisation and support drone innovation CAA cuts red tape to accelerate airspace modernisation and support drone innovation airspace modernisation strategy 15 Sep 2026