Mxsmanic wrote:
I'm not clear on exactly what 0% does on the prop control. I notice
that it can actually go into negative percentages, but I have no idea
what that actually does to the props. Does anyone know? Does 0%
actually mean that the prop is feathered? I can see the prop pitch
change out the window, so it seems like it does (the blades are almost
parallel to the wind with props set to zero).

Also, can the props be feathered on a running engine, or is that not a
good thing?

I can't imagine how/why you would feather the prop with the engine
still running. Certainly not something I have or would try. On most all
planes pulling the prop level all the way back feathers them. On some
older planes there was a feather button but nothing I've flown (DC-3,
etc)

-Robert