Modular propeller

[1] The benefits of a modular propeller are that its specifications (such as blade pitch or propeller diameter) may be altered to suit varying conditions; and it becomes much easier to replace damaged elements, such as a broken blade.

Traditional one-piece propellers may be professionally modified to change the blade pitch, but this is not a common or easy option.

One patent application has defined a modular propeller thus:[3] "A modular propeller comprises a center hub with an integrated front cap and an aluminum core encapsulated with fiber-reinforced composite polymer resin.

A set of replaceable blades have bases that slip into and interlock with corresponding slots in the center hub.

The rear cap includes a nozzle section for expelling exhaust gasses that pass through the center parts of the hub and blade bases".This article related to water transport is a stub.