Propellertype

Propellertype refers to the classification of propellers based on various characteristics. One common distinction is between fixed-pitch and variable-pitch propellers. Fixed-pitch propellers have blades set at a single angle, offering simplicity and lower cost but less optimal performance across a wide range of speeds. Variable-pitch propellers, also known as controllable-pitch propellers, allow the blade angle to be adjusted. This adjustment can be automatic, controlled by the engine's RPM and manifold pressure, or manual, allowing the pilot to select the optimal pitch for different flight conditions. This adaptability improves efficiency and performance.

Another classification is based on the number of blades. Propellers can have two, three, four, or even more blades. The number of blades affects thrust, efficiency, and noise. More blades generally produce more thrust but can be heavier and more complex. The material used in propeller construction also leads to categorization. Traditional propellers were made of wood, but modern propellers are often constructed from metal alloys like aluminum or composites such as carbon fiber. Composite propellers are known for their strength, lightness, and resistance to damage, often leading to improved fuel efficiency and reduced vibration. Finally, propellers can be categorized by their application, such as aircraft propellers, marine propellers, or fan propellers used in cooling systems.