Originally Posted by Cardinal
A King Air driver demonstrated the problems nicely when he selected ground fine in flight to expedite a descent. All was well until he advanced the power levers, one engine came out well before the other, control was lost, and the aircraft was lost.
Cardinal-
Do you have a reference on that? I've heard the same, but no details. I'm kind of surprised, because the King Air series is very similar to the BE-99, and the -27/28 and -36 on the BE-99 use a beta valve system that makes it virtually impossible to achieve Beta while in flight- while the governor is modulating pitch, the beta valve cannot redirect oil pressure to change the FTG setting. In fact, the system is so reliable, they stopped putting in low-pitch stops sometime before the -27/28 series (Sorry, I'm not too well versed on the systems of the -99 and -99A or any of the King Airs, where they differ)