B767 VNAV page

[Low-bypass]

Hi to all
I'm unable to find out what's the difference between OPT vs RECOMMENDED ,the explanation on the FCOM 1 is not detailed enough,anybody to detail me that please?

[oceancrosser]

Optimum is gross wt. vs speed based whereas Recommended is derived from wind and temp data, including that inserted on the LEGS page.
It may or may not make sense...:rolleyes:

There was a pretty good article in the Boeing flight ops magazine
on this subject within the last couple of years IIRC. Look for it.

[flyhardmo]

You should be able to find a detailed explanation in the FCTM

[terrainpullup]

http://www.pprune.org/tech-log/387248-fmc-altitudes.html