To complement the functions which are not furnished by AUTOKONv1, the Italcantieri Company has developed a system, named SCAFO, that solves all the problems related to the shell structures and some related to the internal panelling. It includes the following modules: Frame Table definition, Primary Inner Structures Loading (panels), Shell Landing, Primary I Structures Landing, Section Drawing, Table of Detail (interface SCAFO - Al), Body and Shell Expansion Plan drawing, Shell Expansion, Templates. Long Frame and Transverse Frame expansion (interface SCAFO - Al), Jigs, block marking and controlling data, Bevels offset, Painting Lines Heights, Draft Marks and a General Base List. In addition to the above principal modules, other programs are available; they give us offset tables for frames, decks, longitudinals and other structures. This system and a large library of A. 1 norms gave us the opportunity of merging shipyard and headquaters divisions.

Proceedings of the REAPS Technical Symposium. Paper No. 22: Design for Production. The traditional role of the Ship Designer is the preparation of an overall design of vessel which will have a performance satisfying the owner's Statement of Requirements. The concept of Design for Production, however, requires that, in satisfying the Statement of Requirement, the Ship Designer should also give attention to ease of production. This suggests, therefore, two aspects of the overall design, namely: design for performance design for production and there are others, not considered here, such as design for repair and maintenance, and ergonomic design. Clearly, there will be areas of inter-action and the role of the Ship Designer could be seen in this context as one of arbiter, having the ultimate responsibility of deciding whether performance or production considerations should take precedence in any particular case or the nature of the compromise to be reached. Many of the procedures necessary involve consideration of every feature of the ship from the overall viewpoint. Any tendency to divide design into the traditional elements of steelwork, outfit, engineering and piping would provide a totally inadequate basis upon which to base effective Design for Production.

Presentation gives an overview of uses and advantages of computer aided design.

Proceedings of the REAPS Technical Symposium. Paper No. 24: Group Technology and Automated Process Planning, a Change in Management Strategy. The trend toward increased customization is increasing the problems associated with batch manufacturing, both in design and manufacturing itself. Group technology helps to solve these problems and is thus attracting great interest. The benefits of group technology in such applications as design retrieval, design standardization, standardization of machine tool routings, automated process planning, and machine tool investment can bring about dramatic savings in the multibillion dollar manufacturing industry. Three or four years ago, only a handful of companies were interested in group technology. Today, many companies, including a number considered to be highly conservative, are seriously considering or have adopted group technology systems. This increased interest is a reflection of a growing awareness of the potential benefits of group technology, particularly for batch manufacturing. These advantages can apply to both design and manufacturing.

Proceedings of the REAPS Technical Symposium. Paper No. 25: Integrating Shipyard Design and Manufacturing Functions into an Existing CAD/CAM System.

With shipbuilding capacity worldwide well in excess of demand and competition for orders extremely fierce, shipyards must ensure that all resources are used effectively. Each man on the shop floor, each foreman and manager must be able to carry out the work required of him - which means that he must be provided with all the required information on the work to be done and the means to carry it out. The competition for orders, quite apart from resulting in shorter lead times, has resulted in shipyards building a wider range of products than was envisaged even a short time ago. The potential. variety of individual operations within a shipyard in this situation is much higher than in the case of a single product facility. The information channels used in this production system are similarly going to require greater capacity, speed and accuracy. SPCS is a flexible and uncomplicated approach to production control, aiming to supplement management rather than to replace management decision making by black-box decision rules. It consists of a set of inter-tied modules, each of which is executed either manually or by batch computer processing or on-line, depending on local circumstances.

For the last ten years, commercial shipbuilders have had to make frequent and extensive damaged stability investigations. To accomplish this we have developed the program that we are about to describe.