The aviation industry flaunted a green agenda under tightened security amid fears of environmentalist protests at an air show on Wednesday.

An order from Qatar for Airbus aircraft was set to be the highlight of the Farnborough air show in which Gulf states are dominating proceedings.

An order for up to 100 planes from Etihad Airways to be split between Airbus and Boeing looks set to dominate the opening of the Farnborough air show.