I have a 2001 Cessna 182T with King avionics. The KMD-550 moving map display correctly shows "track up" but the little airplane icon is always pointed to the north.

How can I set this so that it points track up as well, or is there some kind of fault with the unit?

  • 2
    $\begingroup$ Does the aircraft icon rotate if the map is set to "North Up"? $\endgroup$
    – FreeMan
    Mar 16 '15 at 20:04
  • $\begingroup$ Can you please add a picture? This PDF (p.18) states that Aircraft Symbol - Indicates present aircraft position and heading (if available) or track. Do you require some additional circuitry or subscription to show actual heading? $\endgroup$
    – Farhan
    Mar 16 '15 at 20:05
  • 6
    $\begingroup$ This is really a question you should be asking Honeywell/Bendix-King (or your dealer), but do you mean "points north" or "points up"? As I understand it the latter is expected behavior with the KMD-550 in "track up" mode: The airplane's nose will point along the current GPS track (or heading, if you have a heading input), which is "up" on your display in "track up" mode. If the nose is pointing to "north" rather than along your track you may have found a bug, but only Honeywell could say for sure. $\endgroup$
    – voretaq7
    Mar 16 '15 at 20:08
  • 3
    $\begingroup$ does it say "no hdg or trk" at the top of the screen? or perhaps "[mag/tru] ### trk"? if the first, your unit is not getting heading data. if the second, your unit is functioning normally. $\endgroup$
    – Erich
    Mar 17 '15 at 0:46
  • $\begingroup$ @voretaq7 - I think you've got the correct answer, which is where I was heading (heading, get it?). If you want to put that in an answer form... $\endgroup$
    – FreeMan
    Mar 17 '15 at 12:17

According to the Source:

The bottom is for the icon in track up mode. For the North up mode, It Depends on the Heading. The fix icon should be placed on one of the 8 positions (up left, up right, up center, bottom left, bottom right, bottom center). For example, if the Heading is 45°, the fix icon is placed on the bottom left part of the screen.


I noticed that I had posted this a while ago. Short answer: equipment failure. Each component in the system has its own internal heading source: - Stormscope - HSI - Traffic advisory system

If one of these doesn't work - the little airplane points the wrong way. There is no visible failure message. In fact, I replaced the KMD-550 with a Garmin GTN 750 and the problem stuck around. I had to send the traffic advisory system away for a very expensive repair... wish I had known before I bought the plane.


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