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The cavitation erosion of ducted propellers fitted to seven very large merchant ships was studied by full scale and model test observations of cavitation patterns. Ships were tested in load and ballast conditions and by `paint' and `aluminium' erosion model tests with metallurgical study of eroded surfaces. Further tests examined the role of air injection techniques in cavitation prevention.

The research carried out at the University of Strathclyde during Phase II of the UK Ro-Ro Stability Research Programme is outlined. Some of the main findings are presented and possible advances in providing urgently needed solutions to the damage survivability problem of passenger/ro-ro ships are discussed. An attempt to develop suitable models and procedures for dealing systematically with the main problems and uncertainties relating to serious flooding of passenger ships is presented. A modern ro-ro ship is used to illustrate the practical application of the approach attempted at Strathclyde to tackle these problems.

Legislation to reduce emissions from ship engine combustion is under pressure for further development. IMO has now been challenged to act as the body for cooperation between developed countries to reduce emissions of greenhouse gases from ships. Work undertaken so far has focused on CO2 - the main greenhouse gas emitted by ships. A possible strategy and implementation mechanisms are discussed which are aimed to curb CO2 emissions from shipping.

A practical prediction technique to manoeuvre linear derivatives based on a hydrodynamic model for full ships such as bulk carriers and tankers is presented. The hydrodynamic forces of the hull are divided into three parts - entrance parallel and run - with each local derivative looked at both experimentally and theoretically. This new approach reasonably explains the effect of parallel part length aft frame line and entrance fullness on hydrodynamic derivatives.

Feasibility of nuclear energy for future merchant ship propulsion is discussed with reference to - historical review of significant events in the nuclear industry; particulars of nuclear ships built to date (Lenin Savannah Ottohahn Mutsu and the CNSG conceptual design); current technology of nuclear marine propulsion design of integral reactor; trends in world trade ship size fleet composition (especially tankers and containerships) increasing cost and decreasing world reserves of fossil fuels; accident statistics safety and risk of accident in nuclear ships; implications for ship reliability crew levels training and on-shore support facilities; legal and insurance considerations.

Contents include chapters on the following: conditions of ship propulsion, theory of screw action, model screw propeller experiments, propellers in open water, single-screw ships, twin screws behind ships, multiple screws, shallow-draft river steamers, cavitation and propeller failure and steam trials and log analysis.

IMO's International Ship and Port Facility Security Code imposes responsibilities on governments shipping companies and port authorities to enhance the security of ships and port facilities. Some of the vital factors which may restrain the effective implementation of the ISPS Code onboard ships are discussed. MET instructers may require addittional security training so as to be able to deliver valid reliable and practical ship security training. Similarities between the ISPS Code and the International Safety Management (ISM) Code in many areas security and safety mangements must integrate to reduce the workload on the ship's crew.

This paper presents Alsthom’s ideas of why diesel-electric propulsion is the best system for cruise ships. This is a loose article that was published in the Alsthom Review No.8 1987.

Classification is a Quality Management and Control System in merchant shipbuilding and shipping. It forms a vital element in the protection of human life at sea the technical safety of the ships and the protection of the oceans against environmental pollution. This paper describes the basis for classifying naval vessels the development of the Rules for Classification and Construction of Naval Ships. In addition it shows the actual trends and benefits for the navies by the example of the ANZAC-class frigates of the Royal Australian Navy.

A passenger ship in service has a variable operating profile. Many new concepts and designs for passenger ships have been developed during the 80's. For a design to match the actual service profile in the best possible way new design philosophies and methods are required. This paper reviews some important design features of passenger ships when trying to optimise a ship for the actual service conditions. Typical examples are also described.

The possibilities of energy cost savings in the field of shipboard power generation are discussed. One way of achieving these is by the conversion of diesel generators to heavy fuel operation since such oil is cheaper than marine fuel oil. But with regard to reliability and long-term savings the use of shaft-driven generators particularly on ships with fixed-pitch propellers and slow-running 2-stroke engines is much more promising. Such systems have been proven in practice for 15 years and their continuing development is described. Latest developments include combined supply systems incorporating the various alternatives of power take-off from the propeller shaft and using one-fuel ships.

First edition “The purpose of this handbook is to assist shipowners, shipbuilders, marine superintendents, dock authorities, underwriters, ships’ officers and others, to understand a very difficult subject. It deals with the regulations actually in force, and the author has done his best to present the same in a clear and helpful manner, free from confusing technicalities, which, it is hoped, will enable the reader to obtain an intelligent insight into the important essentials which have a direct bearing on the successful operation of ships in their relation to the measurement for register tonnage.”