B737NG IAN App. Vs Lnav-Vnavg
Join Date: Mar 2001
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The advantage of IAN are the similar SOPs between ILS/GLS/MLS approaches and NPAs. The only downside is that the APProach mode cannot fly non-straight approach trajectories (curved approaches).
The bigger difference is that in IAN one sets the go around altitude from the start on the MCP, whereas in LNAV/VNAV you have to select it up later. And of course, only one button to push, not both
The bigger difference is that in IAN one sets the go around altitude from the start on the MCP, whereas in LNAV/VNAV you have to select it up later. And of course, only one button to push, not both
