Aircraft system
AssigneeAirbus Operations GmbH
InventorsAlessandro Albarello, David Paviour, Daren Payne
Life of this patent
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Abstract
An aircraft system for an aircraft is disclosed including a controller. The controller is configured, during a take-off procedure, to initiate automatic closing of a landing gear bay door of the aircraft from an open position towards a closed position, on the basis of a determination that a predetermined door-closing criterion has been met and a command to retract a landing gear has not been received, the landing gear being arranged to retract into a landing gear bay to be at least partially covered by the landing gear bay door when the landing gear bay door is in the closed position.
Claims19
An aircraft system for an aircraft, the aircraft system comprising a controller that is configured, during a take-off procedure, to:
- initiate automatic closing of a landing gear bay door of the aircraft from an open position towards a closed position, on the basis of a determination that a predetermined door-closing criterion has been met and a command to retract a landing gear has not been received, the landing gear being arranged to retract into a landing gear bay to be at least partially covered by the landing gear bay door when the landing gear bay door is in the closed position,
- wherein the controller is configured to initiate the automatic closing of the landing gear bay door in the event that the controller determines that the door-closing criterion is met and a one engine inoperative (OEI) situation has occurred,
- wherein a drag effect of the landing gear bay door being open for longer than the predetermined door-open period may reduce an aircraft climb rate, and
- wherein the controller is configured to maintain the landing gear in an extended position during the automatic closing of the landing gear bay door and de-pressurize a landing gear extension and retraction system when the landing gear bay door is locked in the closed position.
An aircraft system for an aircraft, the aircraft system comprising a controller that is configured, during a take-off procedure, to automatically cause a landing gear bay door of the aircraft to move from an open position towards a closed position, on the basis of a determination that a command to retract a landing gear has not been received within a predetermined period after lift-off of the aircraft and a one engine inoperative (OEI) situation has occurred, the landing gear being arranged to retract into a landing gear bay to be at least partially covered by the landing gear bay door when the landing gear bay door is in the closed position, and wherein the controller is configured to maintain the landing gear in an extended position during the automatic closing of the landing gear bay door and de-pressurize a landing gear extension and retraction system when the landing gear bay door is locked in the closed position.
A method of operating a controller of an aircraft system of an aircraft during a take-off procedure, the method comprising:
- the controller determining that a predetermined door-closing criterion has been met and a command to retract a landing gear has not been received;
- and
- on the basis of the determination, the controller initiating automatic closing of a landing gear bay door of the aircraft from an open position towards a closed position, the landing gear bay door being arranged, when at the closed position, to at least partially cover a landing gear bay into which the landing gear is retractable,
- wherein the method comprises the controller determining if a one engine inoperative (OEI) situation has occurred, and the controller initiating the automatic closing of the landing gear bay door on the basis of a determination by the controller that one engine inoperative (OEI) situation has occurred,
- wherein a drag effect of the landing gear bay door being open for longer than the predetermined door-open period may reduce an aircraft climb rate, and
- wherein the controller is configured to maintain the landing gear in an extended position during the automatic closing of the landing gear bay door and de-pressurize a landing gear extension and retraction system when the landing gear bay door is locked in the closed position.
Dependencies are inferred from the claim text.