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Classification Of Marine Propellers
Aug 23, 2018

The propeller is the main propulsion tool for modern ships, and most ships are propelled by propellers. There are many types of propellers.

According to the number of blades, the propeller has 2, 3 or 4 blades, or even more. The larger the number of blades, the greater the absorption power.

According to different structures, propellers are divided into two categories: fixed (propeller) pitch and variable pitch propeller.

Fixed pitch propeller, pitch is fixed, its characteristics are simple structure, light weight, so it is widely used on ships.

Variable pitch propeller, pitch can be adjusted, through the propeller variable pitch mechanism, hydraulic or electric drive to adjust the pitch. The double pitch propeller was used initially. High speed, low distance and high distance, and then gradually increase the number of pitch.