A method 100 of restoring navigational performance for a navigational system 30, 32, the method 100 comprising receiving by a first navigational system 30 and a second navigational system 32 a collection of data points 34 to establish a real-time navigatio...

A method of operating an energy management system (100) for a fleet of aircraft (10, 110), can include receiving a desired flight plan database for the fleet of aircraft (10, 110), defining at least a desired flight plan for each of the fleet of aircraft (...

A method of operating an energy management system (100) for a fleet of aircraft (10, 110), can include receiving a desired flight plan database for the fleet of aircraft (10, 110), defining at least a desired flight plan for each of the fleet of aircraft (...

A power distribution system which may be provided in an aircraft for example is described. The power distribution system has a power distribution bus 110 and a plurality of localised voltage converters 120, each supplied by the power distribution bus 110. ...