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Features of submarine propulsion are discussed particularly developments in non-nuclear Air-Independent Power (AIP) heat engine and electrochemical systems. A fuel cell AIP with methanol and LOX stores is proposed for a large payload longer range coastal water patrol vessel. Data from published literature are used to compare the capabilities and costs of representative nuclear and non-nuclear submarines for long and short mission requirements in respect of endurance speed payload signature and costs.

The super integrated ship operation control system was developed with computer control on board and satellite communication techniques. It consists of an on board weather routing system GPS receiver cargo monitoring system autopilot main engine remote control system engine data logger and shipboard satellite station with an on board LAN system coupling these equipments.

The role of technology in improving the recoverability of a warship and therefore improving survivability is described. The key issues for being able to recover from the longer term effects of a hit are flood fire and smoke and damage to essential services particularly electrical power chilled water and firemain. Initiatives within the Directorate of Marine Engineering of the Ship Support Agency to evaluate new and existing survivability technologies for future Royal Navy platforms are discussed. Technologies include Platform Management Systems (PMS) fire-fighting and smoke clearance technologies. A measure of effectiveness analysis considering military effectiveness risk cost and statutory requirements showed that a basic Platform Management System is likely to be the most effective technology. The next most effective technologies are simple portable equipment such as wire free communications extended duration breathing apparatus and improving the zoning and control of ventilation. Technologies that rely on sensors and actuators did not perform well.

In order to counter mine threats in coastal areas the Royal Netherlands Navy (RNLN) is designing unmanned mine sweeping vessels (drones). Four of these drones will be controlled by one adapted Alkmaar class minehunter. The survivability aspects of three topics: general design requirements design of the ship's power system and the design of the integrated monitoring and control system are discussed. Three areas have been identified as a risk for the survivability of the drone: shock as a result of mine explosions magnetic and electric fields produced by the minesweeping systems and space. In addition special care must be given to unmanned operations. The choice of the power system and the system layout and survivability aspects are discussed. The brain of the drone is the integrated monitoring and control system (IMCS). In the event of a calamity it must autonomously organise its survival; methods for detecting and reporting system errors are described.

The importance of low amplitude swell during heavy lift operations is illustrated and the reduced significance of both wind speed and wind-generated waves on the stability considerations during such an operation is demonstrated. An example is given from the Piper Field North Sea and comparison is made with operations in the South China Sea.

Examines the significant developments in MV and LV switchgear technology over the last few decades and why they are only recently beginning to benefit the users. A recent development now has significant filed experience to show how through innovative design it has been possible to vastly improve an auto-reclosing circuit breaker. The next generation of military switchgear is likely to be developed for the Electric Warship. Irrespective of which distribution supply is used the next generation of switchgear should benefit from the new technology.

Need for and requirements of coating systems for cargo and ballast tanks discussed together with choice of coating paint rubber clad steel stainless steel Coating application inspection and maintenance considered with relevant standards and legislation

Fuel saving investments (including fitting waste heat recovery system hull cleaning and recoating and propeller maintenance) are evaluated using techno economic model based on discounted cash flow; sensitivity analyses for principle cost saving variables are included

For many years the Electric Ship Concept and architecture have been pushed as the key building block towards the All Electric Ship (AES). The choice of an Integrated Electric Propulsion (IEP) system for the UK's T45 Destroyer Project shows the UK's belief in the technology but does not fulfil the final goal. A look is taken at whether the All Electric Ship Concept - and particularly T45 - can adapt to the new challenge of Technology Insertion or is fatally flawed by it. After some background information a look is taken at an all electric ship architecture. Next technology insertion is considered including power generation power distribution (HV and LV) and auxiliaries plus weapons/sensors support.

Highly skewed controllable pitch propellers (CPPs) of KaMeWa's design and manufacture have been installed in nearly one hundred large passenger ships since their market introduction in 1977. This paper describes the main characteristcs and design principles for this type of propeller. Some results from cavitation tunnel model tests are presented. The essential service experience gained in full scale is summerised.

The IACS Unified Requirements for anchoring and mooring are critically discussed in view of increased "ship size" and anchor losses Anchoring systems requirements design dynamic loading kinetic energy also dynamic braking for large ships is described

The progression of the ALSTOM Advanced Induction Motor (AIM) System is charted from its industrial beginnings through the US Integrated Propulsion System development to the design for the Ministry of Defence Electric Ship Technology Demonstrator (ESTD) contract. The requirements for such a motor system within the UK Ministry of Defence are explained along with the relevant points of the system design. The potential future of this low risk propulsion motor system is dealt with. After some background information a look is taken at the history of the AIM system. Next the requirements of a 20MW system for ESTD are addressed followed by the design of the AIM 20MW system for ESTD and future advancements.

Aspects of the design and testing of marine gas turbine intake and exhaust ducting are discussed. Components include intake filter cascade bend intake flare transition section exhaust volute diffuser silencer exit model and full scale tests are compared.

Results of recent laboratory experiments on the accelerated ageing of diesel engine combustion components are presented and compared with known results from operational plant. The performance energy balance and emissions of diesel engines do not remain stable but change as components wear or are degraded due to fouling. For operational plant the operator/owner should pay particular attention to the following details of the turbocharging air and exhaust systems: turbine fouling wear of turbine nozzle ring wear of turbine shroud ring general fouling of exhaust system fouling of charge air cooler and fouling of air filter.

This paper describes the use of analogue bandwidth converters with digital converters to give an excellent correlation with periodic low frequency gear noise and vibration.

The influence of the propulsion system ie propulsion motors power converters and transformers on the power station and network are discussed. The electric propulsion system of a large cruise ship is a power consumer from the power station in the same way as the hotel and ship service systems. Power converters generate harmonic currents which cause voltage distortion. The principal structure of the network divides the vessel into two with power switchboards in separate rooms. The target of design is to have a short time to recovery after black-out.

This paper discusses the current certification regime Lord Cullen's recommendations and effects and processes of change in the certification authorities in a future safety regime.

Computer Aided Design of Engine Systems (CADES) enables engineers to analyse quickly various solutions to ship power plant systems problems. CADES allows the performance of preliminary calculations of systems the selection of equipment contained in the system and system checking after equipment selection. The simulation of the systems operation in a stationary state different from nominal ones is possible too. This paper presents the package structure and the results of the calculations for a ship currently under construction in Szczecin Shipyard.

Development of the International Safety Management Code for the Safe Operation of Ships and Pollution Prevention (ISM Code) is traced from a UK government initiative to its adoption by the IMO as a means of assessing compliance with mandatory regulations. Statutory requirements implementation guidelines and the issue and validity of documentation are discussed. Appendices detail: The chronological sequence of principle events; IMO Resolution A741(18) 1993; the chapter added to SOLAS Convention 1994; Draft guidelines on the implementation of the ISM Code by administrations.