Need some help. While trying to climb to 33,000 feet, climb rate at 1800 ft per minute and climb speed set at 250 on the 777,in autopilot, this happens. The speed keeps dropping and at about 25,000 feet I go into a stall. I tried this 3 times and it did it every time. Can anyone help me out on this? I have to be doing something wrong. Appreciate any help.Andy

Couple of suggestions; unload some fuel (calculate your actual need plus 10 percent or so) and once above 10,000 feet, crank the speed up to 315 knots. Once you get to FL270 or there abouts, go to mach and set it to .84. Not totally "by the book", but it will allow you to get to FL330.EDIT: Oh, and don't forget, there is no rule that says that you have to climb to cruise altitude at 1800 FPM. Each a/c type has its recommended climb rate/load/altitude recommendations.

Andy,AS you just learned even the biggest, meanest airplanes need some tender care to get them to the cruising altitude. Those huge GE engines have their limits ... ;-)`Michael J.WinXP-Home SP2,AMD64 3500+,Abit AV8,Radeon X800Pro,36GB Raptor,1GB PC3200,Audigy 2

Also,This hasn't been mentiond, but make sure you're set up to have Indicated, and not True, airspeed recorded. If you are setting the speed at 250 True, by the time you hit the flight levels you are very near the stall speed for a clean 777. 250 Indicated yields a faster and faster true airspeed the higher you go.I also use a rule of thumb, which isn't very realistic, but it gets me up to where I want to go. I generally will climb at about 2000 fpm up to FL200, then reduce that to 1500fpm. At FL300, I reduce to 1000 fpm and reduce by about 100fpm after that for every 1000 ft. gain in altitude. I only follow this rule if I have autothrottle slaved to indicated airspeed, but otherwise follow what Tom suggested. This helps me quite a bit when I'm trying out the latest add-on and I'm too lazy to read the docs...-John

Yes even big airplanes can stall! ;)A stall occures when the angle between the wing and the airflow direction gets too big, so the air won't flow in a laminar way over the wing anymore. The result is a lost of lift of about 70%, of course depending on alot of other factors aswell.A stall on a "normal" wing will occur at angles of about 15-20

Make sure your pitot heat is on.