Calculations for inner bottom section modulus to be based on stiffener bending span.

Bulk carriers and dry cargo ships / Steel coil requirements (Ch.

Removed steering gear requirement for redundancy on component level, accepting an overall system redundancy principle.Introduced requirements for main and auxiliary steering gear power units to restart automatically upon power being restored after power failure.Rotating machinery – Driven units / Podded and geared thrusters (Ch.Introducing new class notation – NAUTConnect – facilitating cost effective and efficient system health monitoring and compliance verification.For class notation TMON - introduced new qualifier - + - to show enhanced control with the shaft arrangementĭata driven verification for navigation systems.Introduced new class notation – SBC – to facilitate compliance with IMO MSC.Introduced new class notation – Mooring – to facilitate compliance with SOLAS II-1/3-8 Mooring and towing.Tank venting and alternative designs to meet IMO OSV code.New class notation – ARCS – introduced to support in avoiding excessive roll motions.Navigation, manoeuvring and position keeping Introduced requirement for cofferdam and A60 insulation between fuel preparation room and machinery space category A.Class notation - WAPS - made mandatory when equipment installed.Introduced new qualifier – B - for redundant propulsion.

Introduced class notation for alternative propulsion - AP.New class notation - Gasoline INST - for gasoline fuel installations for refuelling of crafts stored onboard.Maximum probable leakage in fuel systems.New ship type notation - Windfarm service.Steering gear redundancy on system level.

Container ship construction design