What characterizes a fixed pitch propeller?

A fixed pitch propeller is characterized by its blade angle, which is set at a specific angle that does not change during flight. This means that the pilot cannot adjust the blade angle while in operation, making it simpler and more straightforward to operate compared to variable pitch propellers. Fixed pitch propellers are typically used in light aircraft where the operational simplicity and lower maintenance requirements are beneficial.

The design of a fixed pitch propeller maximizes efficiency at a specific flight condition, usually providing optimal performance at a particular power setting and speed. This limitation means that while fixed pitch propellers are effective for certain applications, they do not provide the same level of performance flexibility as adjustable or variable pitch propellers, which can be optimized for varying flight conditions.