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Ice Tech '81 (continued from page 36) which are expected to be of com- mercial importance during the re- mainder of this century, their lo- cation, quantity, physical charac- teristics and the market location to which they must be shipped. Three potential marine transpor- tation systems are described in detail. Paper No. 5—"Technical Devel- opment of An Environmentally Safe Arctic Tanker" by B. John- asson, A. Keinonen, B. Mercer and J. Stubbs. SYNOPSIS: Following Dome Pe- troleum's Arctic research and de- velopment experience, the overall safety criteria are introduced for an environmentally safe non- spilling Arctic tanker design. Safety in ship/ice interactions and the prevention of major ice impacts by new remote sensing technology are addressed. Paper No. 6 — "Development and Implementation of Ship Ice Certificates" by D.D. Maksutov and Yu. N. Popov. SYNOPSIS: Annual growth of cargo traffic and the lengthening of the navigation season in the Arctic demand a large number of cargo and research vessels suited for ice navigation. Because of the possibility of ice damage, each ship should have an "Ice Certif- icate" containing information which ensures the fail-safe oper- ation of the ship. This paper de- scribes the background and re- quirements for "Ice Certificates" in the USSR. Paper No. 7 — "Arctic Marine Shipping Route Evaluations" by D.F. Dickens. SYNOPSIS: Recent studies have attempted to refine our under- standing of winter shipping con- ditions, particularly in dynamic areas such as the Beaufort Sea. This paper uses several recent Arctic shipping route evaluations as case studies, and attempts to isolate those ice characteristics considered amenable to a reliable statistical treatment, and relevant to vessel designers and operators. Paper No. 8—"A Ship Transit Model for Passage Through Ice and Its Application to the Labra- dor Area" by R.J. Gill, A. Aboul- Azm, B. Terry and W.E. Russell. SYNOPSIS: A transit time com- puter model for passage through pack and continuous ice is de- scribed, and the results of its ap- plication to offshore Labrador and Lake Melville are discussed. The model uses ice conditions which are digitized along specific routes and outputs total transit time for passages at various times during the ice season. Paper No. 9 — "Ice Conditions Affecting Navigation in the Beau- fort Sea" by B.D. Wright and D.L. Schwab. SYNOPSIS: In this paper, quan- titative data on ice conditions in the Beaufort Sea are presented which include the distribution of ice type, floe size, undeformed ice areas and pressure ridge height, frequency and orientation. The data presented are currently be- ing used in the design of offshore production systems for the Cana- dian Beaufort Sea. Paper No. 10 — "A Rational Basis for Hull-Ice Strengthening Criteria" by Capt. J.L. Coburn, A. Nawwar and J.B. Montgomery. SYNOPSIS: Several classification societies and various government regulations provide guidelines for strengthening of ice-transiting ships. However, there are incon- sistencies among these different guidelines, and ships have suf- fered hull damage from ice while operating in zones for which they were supposedly strengthened ad- equately. This paper reports on the results of a study to develop the basis for rational selection of ice-strengthening criteria. Paper No. 11—"On the Struc- tural Analysis of Ice Transiting Vessels" by P.C. Xirouchakis and R. Stortstrom. SYNOPSIS: This paper develops a methodology for a rational se- lection of ice-strengthening cri- teria for ice-transiting commer- cial ships so that the scantlings of structural members can be de- termined. The method predicts the load carried by each trans- verse bulkhead, the maximum bending moments developed in THE FIFTH INTERNA TIONAL CONFERENCE AND EXHIBITION ON MARINE TRANSPORT USING ROLL- ON/ROLL-OFF METHODS CONGRESS CENTRUM HAMBURG JUNE 30 - JUL Y2 1981 CONFERENCE PROGRAMME This programme is subject to alteration or addition Panellists to be announced R. B. McMillen, President Totem Ocean Trailer Express. Inc., (TOTE), USA Speaker to be confirmed Session 1: Operations and Commercial Aspects Regular Ro-Ro freight services and the problems of their membership or association to freight agreements (panel discussion) The operation of a high- speed Ro-Ro service between Seattle-Tacoma and Alaska The use of flat rack and platform containers on Ro-Ro ships. The advantages and hazards of working these types of 'specials' in the Ro-Ro mode Session 2: Ro-Ro Ship Types and Design Features The planning and design of a new concept of large Combination Ro-Ro carriers now under construction (Joint Paper) Forest products Ro-Ro's in the Eighties; cargo mix and flow patterns; new designs and economic criteria Combined stabilization Anti-Heeling Systems and their influence on Ro-Ro vessel and Ferry Design Session .'i: Ro-Ro Ferries and Short-Sea Routes The emergence of the super-jumbo ferry has brought extra demands on the capability of their Ro-Ro access and internal rolling agreements. A ferry forum will discuss their concept, realisation and service experiences. Forum Moderator: R. H. Jacquinet, MacGregor Organisation Leif Hoegh Co. A S.Oslo and the Gdynia Shipyard, Poland Timo K. Siirila. Head of Development. Rauma- Repola Shipyard, Finland Horst A. Halden, Director, Intering GmbH, Hamburg Ferry to be discussed Prinsesse Ragnhild 4 new ships Kronprinsessan Victoria Visby Participating Company Anders Jahre Sealink UK Operator Operator Mediterranean Ferries The Behaviour and Prospects of NW European Ro-Ro ferry and short-sea operators: the impact of factor costs (fuel; road haulage; etc) and the possible results Session 4: Diesel Propulsion for Ferries and Ro-Ro Cargo Ships The continuing increase in bunker prices and operating costs has put a new emphasis on machinery selection, arrangement and maintenance. Developments in these areas will be discussed by a panel of major engine designers CNAN (Compagnie Nationale Algerienne de Navigation) M. G. Garratt, Marine Transport Centre, University of Liverpool H. Klintorp, Manager. Installation Dept. B&W Diesel A S U. Viets, Head of Sales, Marine Diesels, M.A.N. •J. Gallois, Technical Director, S.E.M.T.— Pielstick J. H. Wesselo, Director of Research and Development. Stork-Werkspoor BV Session 5: Ro-Ro Safety Since the 1980 Conference, when major shipowners and designers gave their views on the stability of Ro-Ro ships, much attention has been focussed on recent accidents involving this type of tonnage. For this reason, Ro-Ro 81 will again include a Safety Session on different aspects. Session 6: Ro-Ro Port Operations West Africa - Ro-Ro came to K. Lundberg, General stay; the Nigerian Manager, The Ro-Ro experiences, problems and Terminal Co. (Nigeria) responses from port users. Ltd., Managing Agents To the Nigerian Ports Authority Productivity in a Ro-Ro P. Bjurstrom, Managing port — to what degree is it Director, Gothenburg dependent on the co- Stevedoring Co. operation between the stevedoring companies and the shipping lines? REGISTRATION- We wish to make Conference Registration(s) for delegate(s) We enclose our cheque for made payable to BML Business Meetings Ltd. Delegates who will attend (please print): I require details of theTechnical Visits • Name Address Title Name Title Telephone Telex_ Company Official Carrier: (5 Lufthansa Conference fee of £225 per person includes conference documentation, two lunches, coffee breaks and an evening cocktail reception sponsored by the Port of Hamburg. Complete this form and return with remittance to: Ro-Ro 81 2 Station Road Rickmansworth Herts WD3 1QPUK Tel: Rickmansworth (09237) 76363 Telex: 924312 m ' 42 Write 467 on Reader Service Card Maritime Reporter/Engineering News
