Hello, I'm having an issue with the MD11 that has happened to me twice now, it sounds a lot like this issue in this thread:http://forum.avsim.n...__fromsearch__1That topic didn't seem to get resolved then, and is almost a year old so I thought I'd start a new topic.Basically what happens is, during descent, the aircraft starts looping wildly. There's nothing aerodynamic about what it does, my speed is zero and the plane is just rapidly spinning as if on an axis in front of and parallel with the wings (like somebody stuck a piece of pipe through the plane and is just spinning it on the axis of the pipe). The aircraft doesn't lose altitude and I haven't been able to regain control. It just sits in relatively the same place and spins on a vertical axis.The first time this happened, it was in the MD11F descending into KDFW. Today it was in the PAX MD11 and I was just starting to descend into CYUL. Today, I was given descent clearance prior to my calculated TOD, so I dialed up the altitude (FL280) pulled out the altitude knob to start descending. Immediately, it starting doing the flipping.I'm using FSX with the registered FSUIPC, and my weather was through Active Sky 2012. In both cases, there was no noticeable turbulence or wind shifts.Can anyone shed some light on this? Has anyone else experienced this?Thanks for any help...I'd like to fly this aircraft more, but it's a bit of a bummer to fly 6 hours only to not have the opportunity to land!

Hi Dave,I can't say for sure, however I could imagine that you may get somehow in the "shift" or "slew" mode of fsx. This allows you to slew the airplane around, on the ground maybe for repositioning or something like this. I can't say for sure, but do you maybe get into this mode somehow? It is just a key press on your keyboard, or you maybe have it mapped to your mouse, or something else weird. John

I had this happen to me twice, the first time when i left the pc just before top if descent and came to see it spinning along the pitch axis, all the way to the ground.The second time i caught it just in time, i saw the autopilot disconnect and the nose went straight up and strted doing the same thing. This time i pressed Y to enter slew mode and when i came out of slew mode the aircraft was fine.Still have no explanation though...

Thanks for the comments guys. I wouldn't have been in slew mode when it happened, as I could still hear the engines running, ATC etc. But thanks for the suggestion Will, of entering slew mode. At least if it happens again I may have a way to salvage the flight.Cheers

Every time I have had this happen, it had to do with time accelleration. Try the same flight again without accelleration and see if you get the same results.

Beyond the accelleration issue (time compression, not the add-on pack), are you loading the plane via the PMDG-supplied load manager, or through FSX?

I always load through the pmdg load manager.

 

It would be too bad if time acceleration was a no-go...airliner flights with no time acceleration would be a big challenge to find time...

I always load through the pmdg load manager.

 

Good, so that's not the issue...hmm.

 

It would be too bad if time acceleration was a no-go...airliner flights with no time acceleration would be a big challenge to find time...

 

It's definitely a no-go above a certain treshold (I think it's 4x), but I refuse to use it, so I couldn't tell ya what it is really.

For what it's worth, the MD-11 is used on several cargo routes that aren't any longer than an hour or two. Check out FDX's routes on FlightAware and you'll find some.