Controllers and aircraft with variable engine thrust takeoff system

A method for controlling an aircraft comprising:

• calculating a calculated acceleration in response to a takeoff distance and a selection of a variable engine thrust takeoff mode;
• generating an initial thrust control signal in response to the calculated acceleration;
• controlling a thrust of an aircraft engine in response to the initial thrust control signal;
• measuring a measured acceleration of the aircraft;
• generating an updated thrust control signal in response to a difference between the calculated acceleration and the measured acceleration;
• and
• controlling the thrust of the aircraft engine in response to the updated thrust control signal.

An aircraft, comprising:

• an aircraft engine configured to propel the aircraft in response to a fuel supply;
• a thrust controller for controlling the fuel supply in response to a thrust control signal;
• an airspeed sensor for detecting an airspeed of the aircraft;
• an inertial measurement unit for detecting an inertial force;
• a user input for indicating a selection of a variable engine thrust takeoff mode;
• and
• a processor configured to calculate a calculated acceleration in response to the selection of the variable engine thrust takeoff mode, an aircraft weight and a takeoff distance, to generate the thrust control signal indicative of a first thrust level, to couple the thrust control signal indicative of the first thrust level to the thrust controller, to determine a measured acceleration in response to the airspeed of the aircraft and the inertial force, for adjusting the thrust control signal in response to a difference between the calculated acceleration and the measured acceleration, and to couple the thrust control signal adjusted in response to a difference between the calculated acceleration and the measured acceleration to the thrust controller.