Which characteristic is a disadvantage of a controllable- pitch propeller as compared to a fixed-pitch propeller?

Correct Answer: Option C — Some unusual handling characteristics

Controllable-pitch propellers (CPP) allow for infinite pitch adjustment, but they introduce complex hydrodynamic interactions. These systems often exhibit unusual handling characteristics, such as delayed response or unexpected transverse thrust effects during pitch changes, which differ significantly from the predictable behavior of standard fixed-pitch propeller systems.