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OCR for page 165
--> APPENDIX C Questionnaires Questionnaire for Owners and Operators of Double-Hull Tank Vessels Operation of double-hull tankers What is your experience with operational safety of double-hull tankers in regard to: stability during loading and discharging safe access to ballast spaces ventilation of ballast spaces any other safety issues that need to be addressed Are there significant differences in cargo operations between double-hull and single-hull tankers? Have you established operational procedures specifically for double-hull tankers'? Inspection and maintenance of double-hull tankers Please provide information on structural and tank coating inspection frequencies and practices on double-hull tankers. What is your experience with different types of coating in ballast spaces? Have you encountered significant corrosion problems? If so, please describe. What are your current practices with regard to ballast tank coatings (include type, number of coats, thicknesses)? From your experience, what is the expected life of the coatings? Do any of your maintenance and inspection practices for single-hull tankers differ from those used on double-hull tankers'?
OCR for page 166
--> Design of double-hull tankers Have you had any structural problems on double-hull tankers? Please provide information on the type of problems. What is your experience with high-strength steel construction? What design changes would you suggest in future double-hull tankers? Fleet information Please provide the number and size characteristics of double-hull tankers in your fleet. Please note if any of your operation experiences are specific to certain sizes of double-hull tankers. General Based on your experience, what are the advantages and disadvantages of double-hull tankers as compared to single-hull tankers? Questionnaire for Shipyard Operators, Classification Societies, and Marine Architects Design characteristics See the attached ship characteristics form for double-hull tankers. Kindly complete the form for double-hull tankers that have been built, or are under construction, or on order in your yard. An example of a completed form is provided for your guidance in completing the form. Additionally, what is the percentage of high-strength steel used in each design'? What design changes do you foresee in future double-hull tankers? Producibility In comparing the producibility of single-hull and double-hull designs of 90,000, 150,000, and 280,000 DWT sizes, please provide an estimate of the differences (in absolute terms or on a percentage basis) of labor hours or cost between single-hull and double-hull construction for: a) steel fabrication b) machinery/outfitting c) coatings (include type and extent) d) total construction time (keel laying to delivery) e) any other comparative data related to construction or producibility Please describe any particular problems in double-hull construction versus single-hull construction. Maintenance Accessibility of spaces: what has been your experience relative to ease of access of spaces in double-hull tankers versus single-hull tankers? Ability to gas-free spaces: what has been your experience in the ability to gas-free spaces in double-hull designs for the safe entry of personnel? Maintenance-related problems: please describe any maintenance-related problems experienced with double-hull tankers.
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--> Owners and Operators of Double-Hull Vessels who Received Questionnaires Name Location Acomarit (UK), Ltd. Glasgow, United Kingdom Acomarit Service S.A. Geneva, Switzerland A.P. Moller Company Copenhagen, Denmark Bergesen D.Y. A/S Oslo, Norway Bona Shipping A/S Oslo, Norway Ceres Hellenic Shipping Enterprises, Ltd. Piraeus, Greece Chevron Shipping Co. San Francisco, California Conoco Shipping Co. Houston, Texas Eletson Corporation Piraeus, Greece Essar Shipping, Ltd. Madras, India Frontline AB Stockholm, Sweden Gotass-Larsen, Ltd. London, United Kingdom Knutsen O.A.S. Shipping A.S. Haugesund, Norway Mitsui O.S.K. Lines Tokyo, Japan Mobil Shipping and Transportation Co. Fairfax, Virginia Mowinckels Rederi A/S Bergen, Norway Naess Shipping Amsterdam, the Netherlands Neptune Orient Lines, Ltd. Singapore Neste Oy Esbo, Finland Ocean Technologies, Ltd. Ft. Lee, New Jersey Teekay Shipping (Canada), Ltd. Vancouver, Canada Torre Britanica Caracas, Venezuela Tschundi & Eitzen Lysaker, Norway Ugland Tanker A/S Grimstad, Norway Shipyards and Vessel Designers who Received Questionnaires Name Location Astilleros Espanoles (Puerto Real) Cadiz, Spain Avondale Industries New Orleans, Louisiana Bremer Vulkan Werft Bremen, Germany Chantier de l'Atlantique Paris, France China Shipbuilding Corporation Taipei, Taiwan Daewoo Heavy Industries, Ltd. Kyungnam, South Korea Daewoo Heavy Industries, Ltd. Seoul, South Korea Fincantieri Trieste, Italy Halla Engineering and Heavy Industries, Ltd Seoul, South Korea Hanjin Heavy Industries Co., Ltd. Pusan, South Korea
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--> Name Location Hitachi Zosen Corporation Osaka City, Japan Hyundai Heavy Industries Co., Ltd. Ulsan, Korea Imabari Shipbuilding Co., Ltd. Kagawa, Japan Ishikawajima-Harima Heavy Industries, Ltd Tokyo, Japan Kawasaki Heavy Industries, Ltd. Hyogo, Japan Kvaerner Warnow Werft Warnermunde, Germany Mitsubishi Heavy Industries Co., Ltd. Yokohama, Japan Mitsui Engineering and Shipbuilding Co., Ltd Chiba, Japan Namua Shipbuilding Co., Ltd. Imari City, Japan Newport News Shipbuilding Newport News, Virginia NKK Corporation Yokohama, Japan Odense Steel Shipyard Odense, Denmark Onomichi Dockyard Co., Ltd. Hiroshima, Japan Oshima Shipbuilding Company, Ltd. Nagasaki, Japan Samsung Heavy Industries Kyungnam, South Korea Sanoyas Hishino Meisho Corporation Okayama, Japan Sasebo Heavy Industries Co., Ltd. Nagasaki, Japan Shin Kurushima Dockyard Co., Ltd. Ochi-gin, Japan Sumitomo Heavy Industries Co., Ltd. Kanagawa, Japan Tsuneishi Shipbuilding Co., Ltd. Hiroshima, Japan Classification Societies That Received Questionnaires Name Location American Bureau of Shipping New York, New York Bureau Veritas Paris, France Det Norske Veritas Hovik, Norway Germanischer Lloyd Hamburg, Germany Korean Register of Shipping Taejon, South Korea Lloyd's Register of Shipping London, United Kingdom Nippon Kaiji Kyokai Tokyo, Japan Polish Register of Shipping Gdansk, Poland Registro Italiano Navale Genoa, Italy Maritime Register of Shipping (formerly Russian Register) St. Petersburg, Russia
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--> Marine Architects who Received Questionnaires Name Location Beresford House, Town Quay Southampton, United Kingdom George G. Sharp, Inc. New York, New York John J. McMullen Associates, Inc. New York, New York M. Rosenblatt & Son, Inc. New York, New York Three Quays Marine Services London, United Kingdom
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