Patent ID: 8843250

Claim:
A method for managing an aircraft's vertical flight path in a flight information display system, comprising: processing an aircraft position and a terrain information in relation to a planned flight path; processing an energy management information to calculate an attainable range of altitudes wherein said attainable range of altitudes is a range of altitudes that the aircraft can attain without increasing the aircraft's kinetic energy from a current position forward; displaying on a vertical situation display (VSD) the terrain information in relation to a corridor along the planned flight path wherein the corridor width gradually increases from the current position forward; and displaying on the VSD the attainable range of altitudes along the planned flight path wherein a top limit of the attainable range of altitudes indicates an altitude profile with a plurality of the aircraft's engines at idle and a plurality of speed brakes stowed and a bottom limit of the attainable range of altitudes indicates an altitude profile with the plurality of the aircraft's engines at idle and the plurality of speed brakes deployed.