Hum yep I see...but there are some RNAV departures...what do you then?

 

I imagine they fly them in LNAV | FLCH -- it's the horizontal aspect of the departure which is the issue with an RNAV departure really. Just have to be doubly-cautious to put the right stop altitudes in the MCP.

 

 

 

Yes sure...It engages usually at 400 FT right?

 

Precisely! 

gpinho7, on 26 Jun 2015 - 02:24 AM, said:

 

Hum yep I see...but there are some RNAV departures...what do you then?

 

I imagine they fly them in LNAV | FLCH -- it's the horizontal aspect of the departure which is the issue with an RNAV departure really. Just have to be doubly-cautious to put the right stop altitudes in the MCP.

 

I've checked the pilots LINE TRAINING STUDENT NOTES and nothing to mention it. I will however ask him and get back!

 

Simon mentioned stop altitudes, and this airline is big on SID STOP ALTITUDES. Without taking the paragraph from my SOPs, The captain during the takeoff review items always refers to the FMC LEGS PAGE and calls out the hard altitude previously noted or inserted. He then points to the MCP ALT and confirm it matches and calls "SET"

I just want to mention that in the 777, and I believe in the NGX,

you can use LNAV/VNAV and still hand-fly. With the A/T and FD on,

LNAV and VNAV selected or armed, Autopilot off, you follow the

FD bars. The A/T will select your predetermined TOGA thrust,

switch to the preselected Climb thrust at the pre-selected

altitude, and the FD bars will give vertical and horizontal

guidance. The A/T will switch to Speed as you approach the first

altitude restriction. The A/T will also change the target speed

as you reach acceleration altitude. So the pilot can retain

full control and still make use of RNAV/VNAV guidance and A/T

functions.

 

Mike

Simon is right! He got back to me and mentioned all SIDs are managed the same. LNAV, LVL CHG until flaps up then VNAV.

 

All an RNAV SID is, is an SID where the points are not backed up by conventional nav aids, and you therefore need an FMC