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OCR for page 54
EFFECTS OF DOUBLE-HULL REQUIREMENTS ON OIL SPILL PREVENTION: Interim Report
APPENDIX
B
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 55
EFFECTS OF DOUBLE-HULL REQUIREMENTS ON OIL SPILL PREVENTION: Interim Report
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:
steel fabrication
machinery/outfitting
coatings (include type and extent)
total construction time (keel laying to delivery)
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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EFFECTS OF DOUBLE-HULL REQUIREMENTS ON OIL SPILL PREVENTION: Interim Report
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. Moiler 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
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
AESA (Puerto Real)
Cadiz, Spain
Avondale Industries
New Orleans, Louisiana
Bremer Vulkan Werft
Bremen, Germany
Chantier de l'Atlantique
Paris, France
CSBC
Taipei, Taiwan
Daewoo Heavy Industries, Ltd.
Kyungnam, South Korea
Daewoo Heavy Industries, Ltd.
Seoul, South Korea
Fincantieri
Trieste, Italy
OCR for page 57
EFFECTS OF DOUBLE-HULL REQUIREMENTS ON OIL SPILL PREVENTION: Interim Report
Halla Engineering and Heavy Industries, Ltd.
Seoul, South Korea
Hanjin Heavy Industries Co., Ltd.
Pusan, South Korea
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, United States
Bureau Veritas
Paris, France
Det Norske Veritas
Hovik, Norway
Gemanischer Lloyd
Hamburg, Germany
Korean Register of Shipping
Taejon, South Korea
Lloyd's Register of Shipping
London, England
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
OCR for page 58
EFFECTS OF DOUBLE-HULL REQUIREMENTS ON OIL SPILL PREVENTION: Interim Report
Marine Architects Who Received Questionnaires
Name
Location
Beresford House, Town Quay
Southampton, Hants, 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
Representative terms from entire chapter:
south korea
