hat is this voodoo? I’d been glancing outside the airplane, a last check for traffic on short final, as Eric Smedberg, chief pilot for Innovative Solutions & Support, swung the Pilatus PC-12 onto the runway and engaged the autothrottle system with a simple press of a button. I looked down just in time to see the power lever advancing from the idle position to max continuous takeoff thrust, which on this day was a little more than halfway to the forward stops. Seeing the autothrottles in action on a business jet or airliner is no big deal, but in a PC-12 powered by a Pratt & Whitney PT6A lacking full-authority digital engine control, that lever shouldn’t move by itself. It was like a ghost was in our presence — a decidedly friendly ghost, I had to admit.