A method of recovering fuel vapour from a fuel tank of an aircraft, is disclosed. The aircraft includes a fuel tank; a wing with an upper surface and a lower surface; and an opening in the lower surface of the wing. The method includes coupling an inlet of a vapour recovery system to the opening; capturing fuel vapour from the fuel tank which flows out of the opening with the inlet of the vapour recovery system; and collecting the captured fuel vapour in a vapour storage tank of the vapour recovery system.

An aircraft-based fuel quality monitoring and alerting system is disclosed herein. The aircraft-based fuel quality monitoring and alerting system can include a first sensor configured to output a signal associated with contamination of fuel entering an aircraft through a first fuel inlet. The system can further include a processor configured to determine a first contamination level of the fuel based on the signal and an alerting system configured to deliver an alert if the first contamination level is outside a predetermined range.

An aircraft-based fuel quality monitoring and alerting system is disclosed herein. The aircraft-based fuel quality monitoring and alerting system can include a first sensor configured to output a signal associated with contamination of fuel entering an aircraft through a first fuel inlet. The system can further include a processor configured to determine a first contamination level of the fuel based on the signal and an alerting system configured to deliver an alert if the first contamination level is outside a predetermined range.

A device for cleaning fuel located in a tank of an aircraft, having a prescribed flow direction for the fuel and units fluidically connected to one another for transfer of fuel. The device includes in the flow direction an extractor configured to extract fuel from the tank of the aircraft, a filter configured to filter the extracted fuel, and a recirculator. The recirculator is configured to return the filtered fuel to the tank of the aircraft. The recirculator includes a hose configured to provide selective fluid connection of the device to the tank of the aircraft. A pump is provided for moving the fuel, at least through the hose of the recirculator.

A device for cleaning fuel located in a tank of an aircraft, having a prescribed flow direction for the fuel and units fluidically connected to one another for transfer of fuel. The device includes in the flow direction an extractor configured to extract fuel from the tank of the aircraft, a filter configured to filter the extracted fuel, and a recirculator. The recirculator is configured to return the filtered fuel to the tank of the aircraft. The recirculator includes a hose configured to provide selective fluid connection of the device to the tank of the aircraft. A pump is provided for moving the fuel, at least through the hose of the recirculator.

An aircraft-based fuel quality monitoring and alerting system is disclosed herein. The aircraft-based fuel quality monitoring and alerting system can include a first sensor configured to output a signal associated with contamination of fuel entering an aircraft through a first fuel inlet. The system can further include a processor configured to determine a first contamination level of the fuel based on the signal and an alerting system configured to deliver an alert if the first contamination level is outside a predetermined range.

An aircraft-based fuel quality monitoring and alerting system is disclosed herein. The aircraft-based fuel quality monitoring and alerting system can include a first sensor configured to output a signal associated with contamination of fuel entering an aircraft through a first fuel inlet. The system can further include a processor configured to determine a first contamination level of the fuel based on the signal and an alerting system configured to deliver an alert if the first contamination level is outside a predetermined range.