Slide 16 of 24
Notes:
REFERENCES: MSI STUDENT GUIDE
CONTROL REVERSIBLE PITCH PROPELLERS ALWAYS TURN THE SAME DIRECTION AND THEREFORE SIDE FORCES ARE CONSTANT WHETHER THE SCREW IS GOING AHEAD OR ASTERN.
FFG: RIGHT HAND SCREW FOR ALL BELLS. AHEAD BELLS DRIVE STERN TO STARBOARD AT LOW SPEED. ASTERN BELL ALSO MOVES STERN TO STARBOARD. WASH WILL BE DIRECTED AT THE PORT SIDE OF THE STERN. EVEN AT ALL STOP, PROPELLER CONTINUES TO ROTATE, SO STILL HAVE STERN WALK.
TWIN SCREW (DD-963/DDG-993/CG-47): INBOARD TURNING FOR ALL BELLS (PORT CW/STBD CCW). SIDE FORCES CANCEL EVEN WHEN TWISTING.
