Yanmar Pleasure Boat Marine Engine Help

Propeller Clearances

• The clearance between the tip of the prop and the hull is "a". You can go down to 10% if you're stuck.
• The clearance between the rudder and the nearest point of the propeller is "b".
• The clearance between a full keel and the leading edge of the propeller, measured half way out along the blade from the center of the shaft, is "c".
• The clearance between the prop strut bearing and the propeller hub is "d".