Paragraph 4 - Equipment for ships and aircraft
A person may possess a firearm or ammunition on board a ship or a signalling apparatus on board an aircraft or at an aerodrome where it is part of the equipment. A person may remove such a signalling apparatus from an aircraft to a secure place of storage or between one aircraft and another at an aerodrome. A permit from the Chief Constable is necessary to cover any other case of removal of firearm or a signalling apparatus.