How do composite propellers generally compare to metal propellers in terms of maintenance?

Composite propellers generally require less maintenance compared to metal propellers due to several inherent properties of the materials used in their construction. Composite materials are designed to withstand various environmental factors, such as corrosion and fatigue, more effectively than metal. This resistance results in a longer lifecycle and reduced need for frequent inspections and maintenance interventions.

Furthermore, composite propellers are often lighter, which can lead to less stress on the aircraft systems and components. This can translate into lower operational wear and tear, leading to reduced maintenance requirements over time. The manufacturing processes for composites often allow for smoother surfaces and enhanced aerodynamic performance, which contributes to their overall efficiency and lower upkeep.

In contrast, while metal propellers can be durable, they may require more frequent inspections for issues such as corrosion, dents, or fatigue cracks, which can develop due to environmental exposure and operational stresses. Therefore, the maintenance advantages of composite propellers make them an attractive option for many aviation applications.