windycloud wrote on Apr 22^nd, 2008 at 5:22pm:

Very impressive movie! Toward the end of the video I see you engaged A/P and LNAV and VNAV.  At that point the A/P commanded a power reduction and from a 4000 ft/min climb to a -500ft/min descend.  You then engaged FLCH.  Why was that? Was that due to the MCP ALT at that point? I hope the A/P didn't do that for no good reason. By looking at the altimeter the VC gauge refresh rate is not bad but toward the low end.  But that may be the video itself? Again, very good video.  The best presentation of this newly completed 757 that I've seen so far. thanks.  One more patch and I'm most likely buying this beauty! Jason

ohh yes he he, you got me...

that wasn`t a false behavior, the problem was i selected a SID with altitude constraints of 1600 and 5000 feet`s at 2 points, but ATC cleared allready FL150. At this point, ap just followed altitude restrictions as programmed in the SID, normaly i should go to FMS`s vnav climb page and select "climb dir" for direct climb to selected MCP ALT. Problem currently is, that only "descent dir" is currently aviable in the FMC, so i selected FLCH. The manual says that "climb dir" function should be there, i have to report this.
*EDIT* This behavior is not always but on some SID`s

Yes, my refresh rates of VC altimeter and vertical speed arent the best, but some people report better results, but this is again subjective... FSX version must have very good gauge refresh rates, and i hope they work on a better performance for the fsx version, as the current fsx modell is very low on frames for me.