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Old 11th Dec 2017, 21:58
  #17 (permalink)  
eckhard
 
Join Date: May 2005
Location: France
Age: 69
Posts: 1,142
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Integrated Approach Navigation. A way of flying an NPA with lateral and vertical guidance. Like FINAL APP in the Airbus.

Lateral mode is “FAC” (Final Approach Course);
Vertical mode is “GP” (Glide Path).

Provided that the final approach (from the FAF to the MAPt) is a straight line, we can use IAN by loading the approach from the FMC and using the “LOC/FAC” button on the MCP to capture the FAC, then the “APP” button to capture the GP.

The PFD/HUD displays pointers (triangles) to show FAC and GP deviations, like an ILS (which uses diamond-shaped deviation pointers).

For a LOC only approach, you can use “LOC” and “GP”, instead of “FAC” and “GP”.
In that case the lateral pointer will be a diamond and the vertical pointer will be a triangle.
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