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What is VLS on Airbus?
VLS is the lowest selectable speed for the autopilot and the autothrust. Even if the selected target speed is below VLS, the A/THR will maintain VLS as a minimum. VLS is indicated by the top of the amber strip on the PFD airspeed scale (fig. 9).
The Navigation display screen displays the lateral navigation status of the aircraft. The main characteristic of the Navigation Display is the colour screen and the ability to display different modes and functions : route flown, VOR, AFD, ILS, Weather Radar, TCAS, etc.
What does the MFD display?
A multi-function display (MFD) presents information drawn from a variety of aircraft information systems. Other controls allow you to combine information from multiple systems on one page. In many installations, the MFD serves as the backup or faildown display for the PFD.
[′ärk ‚nav·ə′gā·shən] (navigation) A navigation system in which the position of an airplane or ship is maintained along an arc of a circle which has a radius measured from a control station by means of electronic distance-measuring equipment, such as shoran or oboe.
How is the terrain displayed on the ND in a A320?
When you turn on “TERR ON ND” in a A320, you see terrain info on you navigation display (ND), but where does its source come from ? if data comes from FMGS stored inside its memory, then how come it cannot display it in all bounds of the display (see picture) ?
What do the numbers in boxes on an A320 ND mean?
When the TERR On ND button is pressed on the Airbus A320 Cockpit, the TERR information apears on the ND, and 2 boxes in yellow appear. What do the numbers 146 and 073 mean respectively?
Where is the terrain data stored in Honeywell?
The terrain data is contained in a database within the EGPWS (Honeywell TM) or the Terrain Awareness and Warning System (TAWS) as defined in the regulations — can’t use a trademark in the regs. The discussion in your link about “blockiness” when zooming in is a result of the database grid references.
Why does terrain get blocky when zooming in?
The discussion in your link about “blockiness” when zooming in is a result of the database grid references. To save memory space, the resolution of the world-wide terrain data varies based on terrain variation and it’s relative hazard to flight operation.