Thanks Jhieminga. Scary! Wouldn't it be better to arrange things so a prop on a failed (or shut down) engine on a twin goes to fully coarse, instead of fully fine?
Going to full fine is like an airbrake! (At least it is on a Yak52!).
I'd go further and say the prop should fail to 'auto feather' position at all times. For normal shutdown after flight there should be a facility for the pilot to engage the anti-feather latches while the prop is still turning, so subsequent start is easily achieved.
In other words, the failsafe position is 'autofeather', with a pilot-operated over-ride for use during normal, non-emergency, shutdown to prevent auto-feather.
I realise that we have strayed from the original thread subject. If the mods want to move this, that's OK by me.