One thing kept me from buying the FS9 version- instead of varying pitch soley in IAS mode it had a type of autothrottle, according to a review. Has this been rectified in the FSX version?IAS mode- does the autopilot vary pitch only to mantain airspeed?IE: hit IAS at takeoff power and 120 knots, aircraft will climb mantaining 120 knots. Reduce to idle and it will descend; while mantaining 120 knots.The ATR does it well, why not the PC-12?Best Regards, Donald T. :-waveFLYing? It's cool. Trillions of birds and insects can't be wrong.

You might want to ask on the Flight 1 forum http://www.simforums.com/--Tom________[a href=http://www.corpairamerica.com]http://mysite.verizon.net/tjrush/tjrcaasig.jpg[/a]

I have been flying this aircraft a lot. When in IAS mode, the throttle is controlled by the AP, and it is going do its best to maintain the set speed. Varying pitch to maintain airspeed will change the altitude which defeats the purpose of altitude hold.

Oh, that doesn't sounds too good. There's no 'autothrottle' in the PC-12!I'm also a bit surprised that they carried over the errors in the visual model from the old version.RegardsBernt Capt 767

"Varying pitch to maintain airspeed will change the altitude which defeats the purpose of altitude hold."True but in the Pilatus PC-12 the actual function of the IAS button on the autopilot is to maintain your indicated airspeed in a descent or a climb (pilot controls engine power). There is no autothrottle in the actual PC-12. Flight1's decision to make this an autothrottle speed control in level flight has more to do with Microsoft's programming than anything else. I would have liked to see this particular button made to perform as in real life but that would involve custom programming the autopilot which would certainly have increased developmental costs.

Guys,The real PC-12 doesn't have an auto throttle. I think they modelled it correctly the first time.You pitch for airpseed on the climb out...then use the IAS function when you get a little bit higher...then set climb power for temp. using the charts.

Thnx for the info. It is good to know. I am still hoping one day I can own a real PC-12, even a pre-own one.