[[File:warning_sign.png]]A “NAV” warning flag (as shown in the image above) will let you know that you should '''NOT''' trust the HSI indicator in the following cases:
+
[[File:warning_sign.png]] A “NAV” warning flag will let you know that you should '''NOT''' trust the HSI indicator in the following cases:
* No waypoint is selected for the instrument;
* No waypoint is selected for the instrument;
* The waypoint distance is over 250 nautical miles;
* The waypoint distance is over 250 nautical miles;
Latest revision as of 16:39, 3 November 2016
A “NAV” warning flag will let you know that you should NOT trust the HSI indicator in the following cases:
No waypoint is selected for the instrument;
The waypoint distance is over 250 nautical miles;
The GPS accuracy is bad;
Ground speed is less than 5 Kts.
Note: Please note that you may still get correct deviation information when GPS accuracy is less than 2.5 nautical miles. In this case the compass card will be oriented to the north.