Study Highlights Need to Reconsider Fixed Sea-Margin for Gate Rudder Concept
A study published by Norbert Bulten, Product Performance Manager at Wärtsilä, has demonstrated that “there is more in life than the straight-sailing, calm water condition.”The research was carried out within the EU-funded CHEK project and involved full-scale CFD simulations that focused on the impact of rudder steering and vessel motion.The study compared a gate rudder concept to a conventional semi-spade rudder for a Kamsarmax bulker.Typically, a rudder is placed behind the propeller, where the movable part can be a part (semi-spade) or the complete rudder section (full-spade).
Kongsberg Maritime Launches DTS System for Rudders
Kongsberg Maritime has launched the Direct Trunk Support (DTS) system for rudders. According to the company, the new system transfers the manoeuvring forces from the rudder through the headbox and the steering gear deck directly into the hull structure, promising improved manoeuvring, propulsion performance and weight savings that can ultimately save fuel and help cut emissions.The DTS rudder has no upper size limit and works for vessels of any size, from container ships to fishing vessels…
Bureau Veritas Grants AIP to InfraCore for Lightweight Rudder Flap
Classification society Bureau Veritas (BV) aid it has awarded an approval in principle (AiP) to InfraCore Company for its design, modelling, production and testing of a full glass fiber-reinforced polymer (GFRP) rudder flap for an 18,500 TEU containership.The certificate was delivered as a result of the EU-funded project RAMSSES - Realization and Demonstration of Advanced Material Solutions for Sustainable and Efficient Ships – which aims to expand the application and usage of innovative materials to build more efficient and sustainable ships.Lightweight and other advanced materials…
