Abstract: A computerised method is provided for monitoring the status of an aircraft. The method comprises sending, from an output module of an aircraft monitoring system, a reporting more report data signal response and monitoring, at an input module of the aircraft monitoring system, for received data signal to the aircraft monitoring system. This sets a contract with the aircraft that may be used to monitor for unexpected behaviour or non-compliance with the contract terms. The method further comprises determining, at a processor of the aircraft monitoring system, if one or more alert criteria have been satisfied by the received data signal responses and generating, at an alerting module of the aircraft monitoring system, an alert based on the determination.

Abstract: An apparatus and computerized method are provided for monitoring the positions of one or more aircraft. The apparatus comprises a first receiver configured to receive first aircraft position information, over a digital data link, from a first radio frequency source located onboard the aircraft at a first period, via one or more ground stations and a second receiver configured to receive second aircraft position information broadcasted from a second radio frequency source located onboard the aircraft at a second period, via one or more ground stations. The apparatus additionally comprises a third receiver configured to receive electronic geographical mapping data and a processor configured to receive the first and second aircraft position information, to filter the quantity of first and second aircraft position information to smooth the filtered information and then output the smoothed information such that it can be overlaid onto the electronic geographical mapping data.

Abstract: An inventory control method and system is disclosed. The system comprises: a processor, a receiver for receiving an availability request for a leg of a journey between an origin and destination, wherein the availability request comprises one or more attributes defining the leg; and a comparator for comparing the attribute or attributes of the received availability request with data defining a plurality of products. Each product defined by one or more attributes comprising a further attribute which allows a local or non-stop passenger to be distinguished from a connecting passenger. The processor is configured to determine the availability of one of the products in dependence upon the result of the comparison.

Abstract: An inventory control system is disclosed. The system comprises: an inventory server for storing inventory parameters defining one or more products; an availability server arranged to receive an availability request for a product; broadcasting means for broadcasting updated inventory parameters from the inventory server to the availability server; wherein the availability server determines the availability of the requested product by comparing one or more product parameters to one or more inventory parameters in response to the availability server receiving an availability request.