Propeller Maintenance Guide - Yamaha Outboards

How to UNDERSTAND PROPELLER ROTATION: If you are looking at a twin screw yacht from behind, this is what it would look like. The props are mirror images of each other. The edges facing outward are more curved, while the edges facing inward are flatter. When the edges go into forward gear, they will spin away from each other with the curved edge leading. The port spins counterclockwise while the starboard spins clockwise. And in reverse, they turn inwards. The terminologies we use for these props

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Propeller Shaft: Definition, Characteristics, Construction or Parts, Types, Material, Advantages, Application [Notes & PDF]

Propeller, Types of Propellers and Construction of Propellers