Method and system for helping helicopters to land

The method involves calculating an expected landing zone (5) based on a predetermined land trajectory (1). A symbol that is utilized for indicating position of the landing zone is represented in a display (3). A current position of the helicopter is provided in the display. A current altitude of the helicopter is displayed by utilizing a radius of a circle. A center of the symbol is positioned in the radius of the circle for determining the current position of the helicopter. The land trajectory is regarded as an optimized safe trajectory. An independent claim is also included for a system for providing landing aid for a helicopter.