Hi everybody here in the forum... @Autogyro : Just to say I`m really impressed with your effort and hard work on this PC12. At this point, I think you got far more merit on this PC12 than Carenado has, just because they earn good money from below-standard products - yes top quality 3D models and textures, but mediocre systems as is their norm... on the other side, here you are, improving "for love at art" what they leave unpolished as usual, or what is worse...what they are not willing to polish. I think, like others do, that turbine behavior is one key point in a simming session. Unfortunatelly few developers take care about this...RealAir's Turbine Duke, Majestic Software's Q400, PMDG's J41 ...even Aerosoft has its Twin Otter turbines acceptably modeled... It´s hard to understand how Carenado refuses to go a short step further in delivering real good quality products just by improving systems modeling... they could be flying high with the best, but instead, they stay grounded. BTW: it would be very nice seeing Carenado's C90GTX getting your turbine "treatment"... sorry, could't leave without saying this! Best Regards,