Originally Posted by
NE_Pilot
If you were to leave the prop lever in the feather position it would feather, what is preventing it from feathering is that you are only going to feather for a moment, then right back to full forward, not allowing the oil pressure to drop enough to completely feather the propeller.
Actually, the prop won't feather. My MEI instructor one day set the RPM to 1500 and slowly brough the Prop control to feather. The RPM dropped to below 950 and the props were still spinning in a lower pitch higher RPM, they were not feathered.