I have lost one wing of the Auto-Prop Propeller, Now I am traveling with the fix-Propeller, Amel had suplied with the boat. I am surprised, that I canot increase the tours/ min higher than 2400. With the Auto-Prop it has gone up to 3500. I have the Yanmar 110HP Engin. Is this normal or is eventually the Turbo not working anymore ?