Patent ID: 8441376

Claim:
A system for presenting surface symbology on an aircraft display unit, said system comprising: a source for providing flight management data; a source for providing navigation reference data; a symbology generator configured to receive flight management data representative of an assigned runway and a takeoff distance of an aircraft, where the aircraft is not able to safely takeoff in a distance less than the takeoff distance, receive navigation reference data representative of the assigned runway, the runway opposite of the assigned runway, or both, generate symbology image data based upon the flight management data and the navigation reference data, where such symbology image data is representative of an image depicting takeoff distance symbology comprised of a far end and a near end, where the location of the far end corresponds to a location of the end of the assigned runway, and the location of the near end is dependent upon the location of the end of the assigned runway, the direction of the runway opposite of the assigned runway, and a measurement of the takeoff distance taken from the end of the assigned runway, and provide the symbology image data to a display unit; and the display unit for receiving the symbology image data, whereby the takeoff distance symbology is presented on a screen of the display unit.