PROP TALK

Your propellers are the transmission of your boat; they convert the engine’s energy into propulsion and movement. This captain’s test will help you with propeller knowledge. How much do you know?

John Tiger

1. How would you measure the diameter of your propeller? A. The diameter is the distance measured across any two opposing blade tips to the outermost points. You’d need to use a tape measure and measure around the blades. B. Who needs to? It’s always stamped somewhere on the prop. C. It’s the distance from the center of the hub to the outermost tip of one blade, times two; measure with a tape measure or ruler. D. None of the above E. A and C above 2. What is propeller pitch and how is it measured? A. The color of the propeller, measured with a spectrometer. B. The distance a propeller would push a boat through the water in one complete revolution, minus a certain percentage for slip. C. The…

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WAKEBOARDING (Digital) - 1 Issue, November/December 2018

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