Page 18 - Ship Construction.DJ Eyres 6Ed

Ch01-H8070.fm Page 7 Wednesday, October 18, 2006 6:51 AM
Basic Design of the Ship 7
construction and the owner may be drawn to them for this reason. A non-
standard cargo ship of any form and a number of specialist ships will also
require a ‘one-off’ design. Having decided on the basic requirements, i.e.
the vessel’s objectives, after an appropriate project analysis the larger
shipowners may employ their own technical staff to prepare the tender
specification and submit this to shipbuilders who wish to tender for the
building of the ship. The final building specification and design is prepared by
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the successful tendering shipbuilder in co-operation with the owners techni-
cal staff. The latter may oversee construction of the vessel and approve the
builders drawings and calculations. Other shipowners may retain a firm of
Speed and power requirements ศูนย์ฝกพาณิชย์นาวี
consultants or approach a firm who may assist with preliminary design studies
and will prepare the tender specifications and in some cases call tenders on
behalf of the owner. Often the consultants will also assist the owners in
evaluating the tenders and oversee the construction on their behalf.

Ship Contracts

The successful tendering shipbuilder will prepare a building specification for
approval by the owner or the owners representative which will form an integral
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part of the contract between the two parties and thus have legal status.
This technical specification will normally include the following information:

Brief description and essential qualities and characteristics of ship
Principal dimensions
Survey and certificatesสมุด
Deadweight, cargo and tank capacities, etc.
Stability requirements
งานห้อง
Quality and standard of workmanship

Accommodation details
Trial conditions
Equipment and fittings
Machinery details, including the electrical installation, will normally be
produced as a separate section of the specification.

Most shipbuilding contracts are based on one of a number of standard
forms of contract which have been established to obtain some uniformity in
the contract relationship between builders and purchasers. Three of the
most common standard forms of contract have been established by:

1. CESA – Community of European Shipyards Associations.
2. MARAD Maritime Administration, USA
3. SAJ – Shipbuilders Association of Japan