herkeng3

DOES ANYBODY COULD TELL ME WHAT IS THE DIFFERENCE BETWEEN THE SERVO PROPELLER GOVERNOR AND THE PREVIOUS ONES, HOW CAN WE KNOW WHAT TYPES ARE INSTALLED ON OUR AIRCRAFT.

does anybody experience that: In flight we experience very big vibration( the left wingtip move at least 1 meter up and down), just after the number 1 engine flame out, we shut it down by moving the condition lever in feather then pulling the T handle. The vibration stopped but we have the surprise to see that only 3 blades came in feather position the fourth one stay in position. Sorry if my english isn't as good as i would like.