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The use of slow speed diesel engines in future ships will depend on achieving improved specific fuel consumption and optimising propeller efficiency. Adaption for B&W K-GF series engines include increased cylinder pressures compatible with the design limits of engine components and bearings.

A computer system for assessing the performance of ships through a combined study of the hull and diesel engines is described. The mathematical model used and the procedures followed are discussed and special mention is made to the techniques used to measure the load imposed by the propeller the shaft power and speed and weather.

Automation of marine refrigeration plant particularly control of compressor/evaporator in direct expansion plant and compressor/brine cooler/air cooler in brine plant The systems typical uses maintenance and costs are comparatively discussed

This is a reprint from the ASEA Journal 40 (1967):10-11, pp. 154-156. It brings a brief description of the electronic equipment used in bridge control systems primarily intended for turbine vessels. The equipment supplied by ASEA for the T.T. Sea Spray is described and illustrated. A separate reference list of bridge control systems on board of ships accompanies the text.

Theorectical study of buckling and vibration of ships vee-bottom structure is approached as a 2 degree of freedom eigenvalue problem presented as a computer program and solved for typical vessels (especially single bottom steel structures and GRP hulls) under uniaxial compression - extension to biaxial conditions is considered.

The application of cathodic protection techniques (including sacrificial anode and impressed current methods) to newly developing fields of marine technology notably offshore oil and gas structures (pipelines semi-submersibles platforms) special purpose ships of complex hull shape (complex double bottoms and saddle tanks of gas carriers) and high speed naval and patrol vessels is described and discussed with examples.

A new forward to Y-ARD's report for the Ship and Marine Technology Requirements Board (SMTRB) claims that on certain coal trade routes coal-fired ships are already more economical than their oil-fired counterparts. Aspects of coal fire technology are discussed including remote controlled bunkering with pneumatic conveyers.

Design-to-cost concepts and processes are described. Application by the US Department of Defense in the acquisition of naval ships is discussed with reference to the special problems of size complexity nonhomogenity platform-payload disparity lengthy developments periods and high unit costs presented by such vessels. Implications are considered for requirements derivation design process organisation cost estimating cost control contracting and research and development.

Theoretical studies model tests and full-scale trials are used to correlate dynamics hydrodynamics design and performance of surface- effect-ships (SES). Problems of scaling from model to full-scale values are particularly discussed. A computer based method for describing the six degrees of freedom of motion is developed and used to predict manoeuvring and motion in waves of large full-scale craft.

This paper reports an investigation into electrical interference in the frequency range from 10kHz to 30MHz generated by ships' electrical appliances. The main sources of interference presented in this paper are localized in synchronous generators excitation and voltage-control systems thyristor phase-control systems converters and main electrical drive systems.

Copies of slides from a presentation on epoxy coatings for ships.

Royal Caribbean Cruises Ltd was the first to place orders for gas turbine powered cruise ships for its Millennium and Vantage classes and after ten months in service the Millennium has successfully met or exceeded the design goals. The COGES power plant chosen by Royal Caribbean and the benefits achieved are summarised.

Aspects of handling large ships in the open ocean constrained areas harbour approaches and inland fairways are discussed with reference to route selection position finding collision avoidance restricted draught traffic density deep water routes traffic separation (Dover Strait Scheme) fairway maintenance bottom sounding system shore based position information systems (Decca Navigator Holland Chain) fairway identification

Although a free-fall lifeboat has never been launched from a vessel in distress free-fall lifeboats were successfully launched and recovered in a seaway during two separate marine rescues. This paper addresses the basic behaviour of free-fall lifeboats considerations when using them on ships the relative economics of using free-fall systems compared with conventional davit-launched systems and anticipated improvements in safety.

Design considerations pertinent to the military and civil roles of logistic support ships are discussed generally and with reference to specific examples (aspects include hull armament machinery helicopter bow doors hospital manoeuvring electrical). Details of two such vessels built by Yarrow (Shipbuilders) Ltd for the Imperial Iranian Navy include principle particulars layout construction control systems and sea trials results.

A theoretical study based on a three dimensional pulsating source method predicts fine form rigid ship response motion (surge heave pitch sway roll yaw) in head beam and bow sinusoidal waves at different depths of water. Wave loadings calculated by different assumptions are compared. Problems of large draught ships operating in shallow waters is addressed.

The upgrading and redevelopment of facilities at Poland's Gdynia Shipyard is has enabled the construction of improved and competitive ship designs including: the 8088-PK double-skinned Aframax products tanker for BurWain Shipholdings and related Suezmax and VLCC classes; a large bulk carrier for Louis Dreyfus; and type 8109 fast container ships for Schuldt.

The discussions and findings of the Committee for investigation of control of air pollution from ships are summarised. Tokyo Bay was taken as a representative example to obtain tentative field data. Comparison with actual values from observations has been made.