Greetings AllI'm fairly new to IFR flight and am learning a lot as I go. Yesterday I tried a long distance flight using the POSKY 767. My filed altitude was FL390. Autopilot managed the climb out until about FL360 when the speed starts dropping off, the nose comes up and the plane stalls. Tried the same route in the default 777 and had a similar problem at about FL370. Took it out of AP and coaxed the beast up to 390 where I was able to maintain S&L.It occurred to me, being a regular long distance pax, that most flight plans file an initial altitude lower than the final, e.g. starts at FL350 and during the course of the flight work their way up to higher altitudes as the fuel load burns off. Was my stall-out problem simply that the plane was too heavy to sustain that high an altitude? Anyway - is there any way with FS2K to file a flight plan with multiple altitudes, or to move to a higher altitude during the flight, without annoying ATC?Just trying to make it "As Real As It Gets"!!!Keith

If you're using FS9/FS2004, yes.Just bring up the ATC menu and choose REQUEST HIGHER (or LOWER) altitude and it'll give you the options.

Thanks, but I'm still with 2002. Does this work there as well?

No. But a workaround is to skip contacting the enroute controllers. Tune in but don't make contact. That way you can do basically what you want without getting your IFR plan cancelled. Contact ATC only after you have passed TOD and started descent.

Thanks for the tip. I'll give it a try.