Originally Posted by
Larry in TN
No, just the two engine generators and the APU generator. The APUs have to be under a special program to ensure cold start reliability or you have to run the APU from takeoff through ETOPS exit.
I was on the 767 briefly, at another company, about a decade ago but don't remember STBY NAV. Can you remind me what that does?
But hey, finding the coastline at the end of a crossing is easy. The trick is knowing if you need to turn left or right when you get to it!
In a nutshell STBY NAV during a dual FMC failure offers the progress and legs pages allowing point to point navigation. The points are identified as lat long only.