Originally Posted by
100 above minimums
Yea, do try it out and let me know. I'll also try it out on when I get the chance to. But either way, not sure that this is a viable solution; one wouldn't want to arm LNAV while they're only being vectored on a HDG SEL. Would cause a huge mess if during such a phase, with high workload, they inadvertently arm and forget to disarm LNAV.
But more importantly, is there no reference for such thing in the manuals?
very interesting, tried it out, indeed when programming a extended centerline vnav shows a picture as if you where on that centerline, often depicting you high as you are probably still on a base leg(this I knew). When arming lnav it gives you an accurate picture! Going back to hdg select it goes back to the original picture! I did not know this behavior! Couldn’t find anything in the FCOM referencing this (and interested if anybody does have a reference) but it makes sense!
mind you, when arming lnav make sure the wings are level, it then continues on the heading until intercept, if you arm Lnav when in a turn to a specific hdg it starts doing it’s own thing!
learn something interesting from this board all the time.
p.s. Brought up with small aircraft and turboprops and always check all available means to cross check alt v distance but interesting nonetheless!!