777 VNAV SPD/PATH question
Chaps, Boeing VNAV question for you:
In a descent with VNAV PTH on the FMA, opening the speed window will put you into VNAV SPD. However if you shoot an RNAV approach you can of course use VNAV as the vertical mode and have VNAV PTH showing and open the speed window at the same time.
At what point does it allow you to do this? There's clearly a transition from one VNAV 'mode' to another at a certain point, but I'm struggling to find the reference for it. Anyone?
Cheers
RU