Aircraft take-off system

A method of operating a controller of an aircraft system of an aircraft during a take-off procedure, the method comprising the controller automatically:

• receiving a signal indicative of a fault or failure of an engine in the aircraft during the take-off procedure;
• and
• causing a remedial action to be taken in response to the signal, wherein the remedial action includes performing at least a portion of a retraction procedure to retract a landing gear of the aircraft,
• wherein the at least one signal indicates that an operating condition of the engine is beyond a predetermined range or a predetermined threshold.

An aircraft system for an aircraft, the aircraft system comprising:

• a sensor system configured to sense an engine parameter of an engine of the aircraft during a take-off procedure of the aircraft, and to output information representative of the engine parameter;
• a landing gear system configured to retract a landing gear of the aircraft;
• and
• a control system configured to:
• receive the information from the sensor system;
• and
• determine, during the take-off procedure, if there is a fault or failure of the engine based on the information, and
• cause the landing gear system to perform at least a portion of a retraction procedure to retract the landing gear of the aircraft, in response to the determination of the fault or the failure.