ClassNK to launch composite propeller guidelines

Th guidelines follow a joint industry project to design, manufacture and install fhe first composite propeller on a merchant vessel Th guidelines follow a joint industry project to design, manufacture and install fhe first composite propeller on a merchant vessel
Industry Database

The first class society guidelines on composite propellers are to be published by ClassNK this month – a landmark recognition of the growing practical benefits of composite materials to the shipbuilding industry.

ClassNK’s Guidelines on Composite Propellers (Part on Manufacturing/Product Inspection) will be published on 31 August. The publication follows the design and manufacture of a carbon fibre reinforced plastic (CFRP) propeller, and its installation on a merchant vessel – a world first - as part of ClassNK’s Joint R&D for Industry programme last year.

CFRP weighs around one fifth of aluminium-bronze but exhibits the same or greater strength compared to the aluminium-bronze composite materials used in conventional propellers. The lighter material means that CFRP propeller shafts can be manufactured with smaller diameters, reducing costs. It is also possible to produce thinner propellers with smaller blade areas, potentially increasing efficiency.

ClassNK noted: “In order to apply a composite propeller to ships, the material must have the required performance at least equal to existing aluminium-bronze composite materials, and it is necessary to confirm in advance that the composite propeller as an industrial product can be manufactured with uniform quality.”

Based on the knowledge obtained through the project, ClassNK has summarised the requirements for manufacturing process approval, testing and inspection for composite propellers, to assist in their effective use on ships.

LATEST PRESS RELEASES

SHAFT VIBRATION ELIMINATED WITH VESCONITE HILUBE

After replacing the all-rubber cutlass bearing of his new Jeanneau Sun Fast 35 Tide The Knot a frust... Read more

S/V BRYANA COMPLETES 30,000 NM WITH VESCONITE

A mid-ocean loss of steerage due to a faulty rudder bearing wasn't a scenario Luke Fisher wanted to ... Read more

Experts Highlight Viable Power and Propulsion Solutions for Next Generation Vessels

Lithium-ion battery expert Dr John Warner is presenting at the NEXT GENERATION Marine Power & Propul... Read more

AtZ add stabilizer repair and maintenance to their comprehensive portfolio of marine engineering solutions

Customers within the leisure cruise, naval and passenger ferry industries, are heavily reliant on co... Read more

Mercator Media upgrades magazines and conferences brands

February 2018 Fareham UK - Mercator Media Ltd, the international, market-leading B2B marine media bu... Read more

P&E 2017 deemed a resounding success

Taking place between the 10th-11th May, the 2017 conference welcomed high calibre speakers, delegate... Read more

View all