Anyone any experience of using this.I encountered some anomalies when I used it: 1) Reaching Cruise Alt, AFDS went into ALT Hold Mode instead of staying in VNAV.2) No TOD Calculation.3) To rengage VNAV had to select lower ALT and in doing so DES NOW mode was automatically engaged.Oh, and for those of you wondering what CLB DIR is, it allows VNAV to climb to the selected MCP Altitude while bypassing any Legs Page Altitude Restraints.

That's generally because the cruise alt you have selected in the MCP is lower than the cruise altitude you have in the VNAV page of the CDU. Thus, you never really get to VNAV CRZ and stay in VNAV CLB.Luck,P

Let me explain further:Sid has a hard Coded Altitude restriction of 6000ft at a certain waypoint. ATC clears you to a higher FL before this waypoint and you select this on the MCP and hit the CLB DIR button on the VNAV CDU page, to bypass the hard coded restrictions. Later you are cleared to your cruise Altitude that was entered into the FMC earlier. This is where the problems occurred.

Mark,This is a very good question and a reminder of yet another feature that many of us have not explored. I had not responded, and don't know why I am now, because after over 3000 hours in this sim, I have never used it. That is not to say I do not think it is important.Next flight I will give it a try, even if I need to enter a false SID restriction. The issues you ran into though are not that uncommon. Many times have I found myself at altitude and unable to stick the VNAV selection until some combination of entering a lower or higher altitude for a few seconds. Rob pointed out to me that clicking the VNAV button will often reveal that the aircraft is still in climb or jumped to decent mode, an important clue as to what action to take to get things back to normal.Mike

Interesting! never used it before, I will also give it a try.

Brilliant!I remember reading about CLB DIR in my CBTs, but at the time I read it I thought to myself "dammit.. PIC doesn't model it".. but it DOES!I have completely missed this, too! Until now, I have just deleted the hardcoded SID alt-restrictions from the LEGS page, and engaged VNAV again with the new MCP alt set. I'll try this tonight, and report back..Tero

Mike,I would never have known about this had I not heard a 767 crew discussing whether or not to use this or FLCH if given higher by ATC before the SID altitude restraint, when they were doing the pre flight brief.As Rob says, You learn something new about PIC every day.

Well, this would be a first for me. I can not say I have ever used the CLB DIR. I have used FLCH or simply deleted the SID altitude restrictions (out of EGLL and EGCC come to mind). Just to confirm, the CLB DIR will ONLY appear if there is an alitude restriction on the CLB segment? Just so I know where to expect it to show up...and I also assume selecting CLB DIR will over-ride the altitude restrictions in the FMC and "climb direct" to CRZ ALT? It woudl then seem the difference between FLCH and CLB DIR is that CLB DIR would include SPD restrictions/transisitons as set up in the VNAV CLB page whereas FLCH would simply climb at speed selected in the MCP.Just to clairfy for me?Cheers,Rob.

Just doing a hop across the channel from EGLL to LFPG - CLB DIR worked a charm. Flew through the restricted altitudes. More when complete.Nice.DS CVA3339 / UKD149System: Attlon 900 McW Hamster/Gerbilized Quantum Accessible 55Gig Iodized-Encrusted Four-poster with Mega-brill Farzenhuuven http://vatsim.pilotmedia.fi/statusindicato...tor=OD1&a=a.jpg

And DES DIR works a charm too - man, is there anything else I've missed?I hear there are invisible click spots as well somewhere on the panel.DS CVA3339 / UKD149System: Attlon 900 McW Hamster/Gerbilized Quantum Accessible 55Gig Iodized-Encrusted Four-poster with Mega-brill Farzenhuuven http://vatsim.pilotmedia.fi/statusindicato...tor=OD1&a=a.jpg

You dancing fool!Have you hugged your PIC767 today?

Yes yes I have - hugging it now.Movement.Ummmmm, is my yaw damper on?Oh. That's not a yaw damper.Oh.;)DS CVA3339 / UKD149System: Attlon 900 McW Hamster/Gerbilized Quantum Accessible 55Gig Iodized-Encrusted Four-poster with Mega-brill Farzenhuuven http://vatsim.pilotmedia.fi/statusindicato...tor=OD1&a=a.jpg

How vulgar!Where are the Forum Cops when you need one?

Yeah, where are those forum cop guys?This place has turned in a clique-ridden heck-hole with absolutely NO decorum whatsoever.Anyhoooo...Just like to say thanks to Mark for pointing out the CLB DIR option (invisible clicks spots are next for me - I KNOW they are there somewhere). The LEGS page still calculated the hard altitude restrictions (MAY at 5000), but I climbed through them CLB DIR with the ALT set at 18000. I deleted the MAY 5000 restriction once I passed it. Next time I will leave that well enough alone, and see what transpires.Speeds seemed LOW, but I only climbed to 250.BTW, did you know that the 767PIC is an awesome add-on, designed by some of the smartest, coolest, dudes in the flight simulation world? Designed for FS7, updated for FS8, and still the best add-on hands-down!I have hugged my PIC today. Have you?Lord, time to get out of this stuffy office, I think I may be oxygen deprived.DS CVA3339 / UKD149System: Attlon 900 McW Hamster/Gerbilized Quantum Accessible 55Gig Iodized-Encrusted Four-poster with Mega-brill Farzenhuuven http://vatsim.pilotmedia.fi/statusindicato...tor=OD1&a=a.jpg

You mean FL250 or 250kts?The CLB DIR (I am guessing) would NOT over-ride the 250/10000 SPD Transition/Restriction which may have been in the FMC from a previous flight?Rob.