Avionics systems, controllers, and aircraft are provided. An avionics system includes a display unit and a controller, and an aircraft includes the avionics system. The display unit is configured to present an image. The controller is communicatively coupled with the display unit and is configured to control the display unit to present the image in a takeoff mode and in a flight mode of the controller. The controller is further configured to receive signals indicating an aircraft attitude, a target attitude, and an aircraft flight path, to generate a marker in the image in the takeoff mode based on an attitude difference between the aircraft attitude and the target attitude, to generate the marker in the image in the flight mode based on the aircraft flight path, and to generate a signal that causes the display unit to present the image.