Carbon Fibre Propeller

[Boatnomad]

World’s first installation of a Carbon Fibre Propeller on main propulsion system of a merchant vessel...

Carbon Fibre Propellers exhibit the same strength as the Aluminium-Bronze used in conventional ship propellers.
Due to its ultra-light weight,shafts can be manufactured with smaller diameters, contributing to a significant reduction in weight and fuel costs.

SeaNews Turkey - First Carbon Fiber Main Propeller Installed On a Merchant Ship

[Will75]

The ABP pilot boats had composite props for a short while when they were built...things must have moved on as these ones lasted about a day!