A system for controlling the speed of an aircraft with a speed brake during a vertical descent for landing, the system comprising: a guidance system configured to determine a target speed for the aircraft; a speed brake control system coupled to the guidance system and configured to compare the target speed to a current speed to generate speed brake guidance; and a display unit coupled to the speed brake control system and configured to display a visual representation of the speed brake guidance to a pilot of the aircraft, characterised by a speed brake control interface configured to be selectively positioned in a first position at which the speed brake is not applied, a second position at which the speed brake is completely applied, and an intermediate position at which the speed brake is partially applied, wherein the speed brake guidance includes a recommendation for the intermediate position, wherein the speed brake control system includes a pre-processing module, a controller module, and a post-processing module; wherein the pre-processing module is configured to receive a flight path angle and to determine a rate limit signal based on the flight path angle that limits the speed brake guidance, wherein the pre-processing module is configured to receive a current altitude and the current speed and to generate an enable signal to enable the speed brake control system based on the current speed and the current altitude, the pre-processing module further generating rate limit signals that represent speed brake position incremental rates, wherein the controller module receives the current speed and a speed profile and further receives the enable signal from the pre-processing module and generates initial speed brake position guidance signals associated with the speed brake, and wherein the post-processing module receives the rate limit signals from the pre-processing module and the initial speed brake position guidance signals from the controller module and generates the speed brake guidance based on the initial speed brake position guidance signals and the rate limit signals. a guidance system configured to determine a target speed for the aircraft; a speed brake control system coupled to the guidance system and configured to compare the target speed to a current speed to generate speed brake guidance; and a display unit coupled to the speed brake control system and configured to display a visual representation of the speed brake guidance to a pilot of the aircraft, characterised by a speed brake control interface configured to be selectively positioned in a first position at which the speed brake is not applied, a second position at which the speed brake is completely applied, and an intermediate position at which the speed brake is partially applied, wherein the speed brake guidance includes a recommendation for the intermediate position, wherein the speed brake control system includes a pre-processing module, a controller module, and a post-processing module; wherein the pre-processing module is configured to receive a flight path angle and to determine a rate limit signal based on the flight path angle that limits the speed brake guidance, wherein the pre-processing module is configured to receive a current altitude and the current speed and to generate an enable signal to enable the speed brake control system based on the current speed and the current altitude, the pre-processing module further generating rate limit signals that represent speed brake position incremental rates, wherein the controller module receives the current speed and a speed profile and further receives the enable signal from the pre-processing module and generates initial speed brake position guidance signals associated with the speed brake, and wherein the post-processing module receives the rate limit signals from the pre-processing module and the initial speed brake position guidance signals from the controller module and generates the speed brake guidance based on the initial speed brake position guidance signals and the rate limit signals.