Which component of an aircraft helps in navigation by indicating its position?

The navigation display is an essential component of an aircraft that provides pilots with critical information regarding the aircraft's position and trajectory. This display processes data from various navigational systems, such as GPS, inertial navigation systems, and other onboard instruments, to assist in determining the aircraft's current location in relation to its intended flight path.

By showing the aircraft's position on a map or through other visual indicators, the navigation display allows pilots to make informed decisions about their course, altitude, and speed, enhancing the overall safety and efficiency of the flight operation. This functionality is vital for both visual and instrument flight rules, facilitating navigation in varying weather conditions and terrains.

In contrast, the engine is primarily responsible for propelling the aircraft, while the flaps are used to increase lift and improve control during various phases of flight. The landing gear supports the aircraft on the ground and is used during takeoff and landing but does not contribute to navigation.