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indeed the relationships themselves may change. Therefore, the results produced are approximate. As the design proceeds the accuracy should increase provided the methods of assessment used reflect the increased complexity and detailed definition of the design. (Kiss 1980) 2.3. Design Requirements The starting point for a design is a given set of requirements concerning the vessel type, speed, payload, range, and operating conditions. The termination of the total design task occurs when the design definition embraces both the needs of the customer and the designer's criteria of technical acceptability. The customer objectives will naturally be different for each case. The way they change, from one contract to another, will influence the designer and the decisions he must make. The most basic requirements that any marine vehicle must satisfy are as follows: 1. The vessel must have sufficient buoyancy. That is the displacement of the vessel should be equal to the total weight. 2. The vessel must be buildable and must also be economic to build and operate within practical limits. 3. The vessel must be sufficiently stable and not to capsize in waves that are likely to be met in the operational area. 4. The vessel must have structural integrity sufficiently strong to prevent any damage to vessel itself and passenger or cargo on board. 5. The vessel should be made as sea kindly as possible, i.e. It should be able to operate without excessive motions in waves. 6. The vessel must be safe against damage from fire, explosion, collision or grounding. Sufficient lifesaving equipment must be provided for crew and passengers. 7. The vessel must be controllable and should have sufficient power to make a forward speed. 8. The vessel must be self-sufficient within voyage period. This period may range from minutes to months depending on the type of vessel. 11PDF Image | FIBER REINFORCED PLASTIC BOAT IN SERIAL PRODUCTION
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