The most important part of your boat is the propellers. Propellers are the main control for water flow velocity, direction and strength. If you’re trying to figure out how big your boat’s propeller must be begin by measuring the diameter of your vessel. Find out how you can determine the prop size of your boat on the video from YouTube “How to Find the Dimensions of a Boat Prop”.
Find the diameter of the shaft in order in order to figure out the prop’s size for your boat. It is a part that runs inside the gear casing of the prop and is generally made of either aluminum or steel. Although the shaft is round there is a possibility of a tapers. You could calculate the diameter via a different method, if you are unable to locate a ruler that measures in inches.
Create a circle on the paper with a pencil. Then make a mark at one-third the circle’s diameter. your circle . This represents how far you can go between marks that are on opposite sides of the circle (called “paddles”). Then, take a measurement from one paddle to one and then multiply your number by 0.33). This will give you an estimation of the prop’s shaft/prop-diameter ratio.
Additionally, you can utilize a tape measurement tool to find this ratio, if you aren’t able to access other measures or tools. It is important to measure each end of each tape to ensure they are equal. Without this, your results may not be exact enough to be used in calculation.
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