The Class A TAWS provides visual and aural warning alerts for terrain avoidance. It supports Steep Approach functionality and six basic alert and warning modes such as excessive descent rate, altitude loss after takeoff, and inadvertent descent below glideslope. In addition, the Class A TAWS uses GPS input and a worldwide terrain database to display an enhanced graphical plan view of terrain, color coded in relation to the aircraft’s position. Terrain is shown in higher resolution around all runways longer than 2000 feet. Within North America and certain other areas, manmade obstacles greater than 100 feet are shown and included in the alert and warning modes. The Class A TAWS also includes a terrain clearance floor exceedance mode and a “look ahead” cautionary mode. Operators will be notified by Garmin of database updates as required.