Home NI590 Rudders in composite materials This Guidance Note defines a methodology to assess scantling of rudders (rudder stock, rudder blade and flap, rudder trunk and rudder horn) built in composite materials and the requirements for the manufacture inspections and tests for rudders. ReferenceTitleEditionNI590 R01Rudders in composite materialsMar 2023check relAted documents:NR546 Hull in composite, plywood and high density polyethylene materialsNR467 Rules for the classification of steel shipsNI663 Propeller in composite materialsCheck other Bureau Veritas rules and guidelines.