Reducing the cost of ship construction is of vital importance to the military posture and economic strength of our country. This paper presents hard evidence which confirms costs of construction can be reduced when the design is responsive to the real problems and costs encountered in construction. The Jetfoil, a 115-ton, 45-knot, submerged foil Passenger Hydrofoil Ferry is in service in Europe, Asia and South America. The hull is of 5456 welded aluminum construction. At the completion of Hull 10, significant design and manufacturing changes to reduce construction costs were made. Hull 11 was constructed for about 80% of the cost of Hull 10. This paper presents a direct comparison between an initial design and a redesign to reduce construction costs, using as a specific example the bow module. The evaluation team setup and evaluation methodology are explained. The designs are compared, including construction details, part count, and amount of welding. Manufacturing tools are compared. Construction buildup and sequencing are compared. Weights are compared, and finally, actual construction man-hours for the two designs are compared. This comparison shows the cost reductions possible when manufacturing costs become an integral part of the design process.

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  • Corporate Authors:

    American Society of Naval Engineers

    Suite 507, 1012 14th Street, NW
    Washington, DC  United States  20005
  • Authors:
    • Schmit, J
    • Braun, M T
  • Publication Date: 1979-4

Media Info

  • Features: References;
  • Pagination: p. 212-220
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00194723
  • Record Type: Publication
  • Source Agency: American Society of Naval Engineers
  • Files: TRIS
  • Created Date: Jun 13 1979 12:00AM