Exam Question
State the different types of Propellers and a brief note on each (16)
Class 4 (4th Engineer)
SC&S
📅 Nov 2022
Reference Answer
### Introduction to Marine Propellers
A marine propeller is a rotating fan-like mechanical device that converts rotational power into thrust to propel a ship through water. It operates on the principle of Newton's Third Law and Bernoulli's principle, creating a pressure differential between the forward (suction) and aft (pressure) faces of its blades, resulting in a net force (thrust) in the forward direction.
Propellers can be classified based on several criteria, including pitch control, number of blades, and special design features.
### 1. Classification based on Pitch Control
A marine propeller is a rotating fan-like mechanical device that converts rotational power into thrust to propel a ship through water. It operates on the principle of Newton's Third Law and Bernoulli's principle, creating a pressure differential between the forward (suction) and aft (pressure) faces of its blades, resulting in a net force (thrust) in the forward direction.
Propellers can be classified based on several criteria, including pitch control, number of blades, and special design features.
### 1. Classification based on Pitch Control
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