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The Shiphandlers Guide

   The skill of a good shiphandler should never be underestimated. This is because they can achieve consistency in performance and control even though no two dockings are ever exactly the same. Similarly the range of variable considerations which have to be taken into account when planning, predicting, monitoring and manoeuvring means the shiphandler is constantly having to reassess progress. The competent shiphandler has to be aware of wind and weather, current and tidal changes. In most berth approaches, shallow water and interaction effects will also have to be taken into account. There is the range, type, availability and efficiency of tugs to be considered. Also, the availability and aptitude of the personnel on each ship has to be assessed for their ability to handle tow lines and mooring lines. All these factors effect ship manoeuvres which in a tidal regime have to be completed within limited time windows: so adding to the sense of anxiety should anything go wrong. We can start to see that the qualities demanded of a good shiphandler are considerably greater than those required in other modes of transport. They must be competent in the sense that they are trained and know what they intend to achieve. They must be able to exercise judgement and be flexible in their outlook to adjust to changing circumstances. They must be able to communicate effectively: they must be able to stay calm under pressure and solve problems with authority when the situation requires it, and they have to be experienced. Shiphandling is teamwork and for teamwork to be successful there has to be a general understanding amongst pilots, masters, tug masters, ships officers and dock masters about the principles of shiphandling and the factors which influence manoeuvring.

Category: SHIP HANDLING | Views: 304 |

Text-book of Theoretical Naval Architecture   Here is a reprint of one of the most popular and classical textbooks on the naval architecture in the history. The text was digitized by the Internet Archive some years ago with funding from Microsoft Corporation. The publication was prepared by Edward Lewis Attwood and published by Longmans, Green & Co. almost one century ago. The intention of the author was to provide readers, particularly draughtsmen of the Naval Achitects and Shipbuilders offices and future naval architects studing this discipline, with a thorough and comprehensive text book containing proper and understandable explanations of the calculations involved. There is a huge number of examples given in the book for the students to be able to test their grasp of the principles and processes explained inside...

Category: NAVAL ARCHITECTURE | Views: 211 |

Electrical Properties of Materials

   The latest eight edition of the "Electrical Properties of Materials" book by Lazslo Solymar and Donald Walsh. Here are the topics included in the publication - The electron treated as a particle and as a wave; The hydrogen atom and Mendeleev's Periodic Table of Elements; Electric bonds; The free electron theory of metals and the band theory of solids; Semiconductors; How semiconductor devices work; Magnetic and dielectric materials; Lasers; Optical electronics; Superconductivity; Artificial materials or metamaterials; Fundamentals, technolody and applications of the organic semiconductors.

Category: ELECTRICS AND ELECTRONICS | Views: 105 |

Small-Scale Turbulence and Mixing in the Ocean

   The publication which is now presented to your attention, contains the proceedings of the XIX International Liege Colloquium on Ocean Hydrodynamics, the subject of that Colloquium was Small-Scale Turbulence and Mixing on the Ocean. The Colloquium has been organized jointly by the Liege University and SCOR Working Group 69. For this purpose the Group created a Programme Committee which included K. Fedorov, C. Garrett, M. Gregg, S. Thorpe and J. Woods. The ultimate aim of the subject Committee was to develop, under the direction of Prof. J. Nihoul of the University of Liege the scientific programme of the Colloquium, to issue the announcement, and to invite contributions. The decision was made to focus the Colloquium programme on the relationships between small-scale mixing and large-scale features, processes and transports involved. In this connection, the presentation of papers on the different methods of parameterization of small scale turbulent mixing for various numerical ocean models was encouraged by the Programme Committee in particular...

Category: MARINE SCIENCE & OCEANOGRAPHY | Views: 67 |

Wellhead Fatigue Analysis

   This DNV GL Recommended Practice RP-0142 - Wellhead fatigue analysis - was developed based on the ongoing Structural Well Integrity Joint Industry Project (ЛР). Phase 1 of the JIP was initiated in 2010 and continued into phase 2. The content of this document is primarily based on input from the participants and the service provider Stress Engineering Services Inc., as well as contributions from DNV GL. The Recommended Practice has been developed in regular project meetings and workshops involving individuals from the participants, DNV GL and external service providers. In case consensus has not been achievable, DNV GL has sought to provide acceptable compromises. Over recent decades, the complexity and duration of offshore drilling activities has steadily increased. Additionally, equipment sizes like subsea BOP stack have grown significantly. These factors have led to an increase of fatigue loads experienced by the wellhead/casing system. Fatigue is the progressive and localized structural damage that occurs when a material is subjected to cyclic loading. Fatigue damage is generally characterized as having two phases: (a) crack initiation and (b) subsequent crack propagation, which may lead to unstable fracture.

Category: CLASS PUBLICATIONS | Views: 55 |

Bearing Failures and their Causes

   The product information booklet prepared by SKF Group professionals. We all know that the bearings are one of the most important components in the most engines and it is natural that this machinery piece is always subject of a very extensive research. This publication covers such important aspects of rolling bearing failures as path patterns and their interpretation, types of possible bearing damage like its wear, smearing, corrosion, indentations, surface distress, damage caused electric current passing through, cracks, cage damage, flaking etc...


ICSOT 2006 - Design, Construction and Operation of Natural Gas Carriers and Offshore Systems

   The trend of current LNG newbuildings is that the cargo capacity keeps increasing every year. The shipyard proposal keeps adding the numbers of tank capacity until there is no limit to the membrane LNG carriers. Prior to this phenomenon, the Large LNG Carriers standard designs are limited to 130,000 cbm to 138,000 cbm In 2004, Qatar Gas selected two designs proposed by Hyundai Heavy Industries/Samsung Heavy Industries Consortium and Daewoo Shipbuilding and Marine Engineering to build larger than 200.000cbm capacity LNG Carriers. The contract of the Very Large LNGCs clearly showed that there is no limitation of what is coming to the industry. The construction of the LNG newbuildings around the world will increase until the Qatar Gas acquisitions of LNG ships settled sometime in 2012. Previously in the past, any LNG newbuildings will be based on a fixed charter contract between the Charterer and the Owner. However, recent trend of the LNG newbuildings is now moving towards the spot charter market and speculative in nature making the newbuildings slots for LNG very tight among the LNGC capable shipyards. In order to become pro-active player in the LNG transportation market and promoting high quality standards in LNGC newbuildings, MISC would like to share the experience gained during supervision of newbuildings of Large LNGC. MISC experience in LNGC newbuildings is further augment by the fad thai most of the newbuildings ordered in the recent years are based the membrane-type insulation rather than other type of insulation like the Moss-type or independent tank-type. In 2004 alone, the big three shipyards in Korea won almost 90 percent of the LNG tanker contracts awarded...

Category: SHIP DESIGN & CONSTRUCTION | Views: 132 |

Pressure Vessels Field Manual - Common Operating Problems and Practical Solutions

   Basic overview; Use of pressure vessels and aasociated equipment; History of PV Codes in the USA; Organization of the ASME Boiler & PV, ANSI/ASME B31 Codes; Updating/Interpreting the Pressure Vessel Code; ASME Code stamps; Some other PV codes and recognized standards in the US and all over the world; Comparison between Division 1 and Division 2 of the Section VIII of ASME Code, Section I - Power Boilers and Section IX - Welding; Additional requirements that have been employed by users in critical service ; Material selection; Various ferrous and nonferrous alloys; Steel heat treatment; Brittle factors; Hydrogen embrittlement; Selection of materials and guidelines for preventing brittle fracture...

Category: MARINE ENGINEERING | Views: 173 |

Coastal Pollution - Effects on Living Resources and Humans

   The present 2005 edition is an excellent revision of the previously issued book preserving some technical aspects and enlightening vignettes which were recorded in the original version. Let us have a look at some of the topics addressed in this publication - Cholera; Minamata disease; PCBs and related chemicals; Microbial pollution of recreational waters; Harmful algal blooms; Biological pollution and sublethal effects of coastal pollution on marine animals; Effects of coastal pollution on public health and quality of human life as well as to yields from fish and shellfish resources; Mass mortalities of marine mammals...

Category: MARINE SCIENCE & OCEANOGRAPHY | Views: 94 |

Plank-on Frame Models and Scale Masting & Rigging

   As originally planned this book was to have been published as a single volume, but the ever rising cost of production made it evident that to do so would result in it becoming too costly, and it was therefore decided to divide it into two. The text of the publication was written round the building of one of my own models, namely the brigantine Leon, following it through from the use of plans to the very final mounting on the base ready for the glass case. This particular model has however not been slavishly followed, for where subsequent work or previous models have proved better technique, this has been quoted, in fact alternative methods of making the various components are included throughout. This model belongs to what for the want of a better term I will call the "scale construction" class, in which the internal timbering follows in close detail that of the prototype vessel, but other and more simple methods have also been described, and although the example chosen represents a ship of the smaller type, the same construction will apply to vessels such as full-rigged ships and barques. I have always held that to produce a first class model it is not sufficient merely to have good plans of the vessel being built, they must be backed up by a good understanding of the full-size prototype of the class, and I have therefore described full-size practice alongside details of the model, which broadens the scope for the modelrnaker to apply his own methods to achieve the same results, should he wish to do so.

Category: SHIP MODELING | Views: 123 |

Admiral Lord Keith and the Naval War Against Napoleon

   During the wars of the French Revolution and Napoleon, the British navy dominated its rivals. To accomplish this, Britain needed competent and steady officers such as George Keith Elphinstone, later Viscount Keith (1746-1823). Although he earned distinctions and a fortune in prize money and even commanded fleets for longer periods than notable contemporaries such as Admiral Lord Nelson, Keiths story remains obscure. Perhaps this resulted from his failure to command a fleet in a major sea battle, but this was not unusual, because there were only six fleet engagements during the Revolutionary Era. Keith served a lifetime at sea, gaining experience as a captain during the American Revolution and then, between 1795 and 1815, holding four independent commands: the Eastern Seas, 1795-96; the Mediterranean, 1799-1802; the North Sea, 1803-7; and the Channel, 1812-14, 1815. The diversity and longevity of his naval service meant that he played a major, if underrecognized, role in the implementation and the crafting of British naval policy...

Category: NAVAL HISTORY | Views: 71 |

Practical Design of Ships and Other Floating Structures

   The document presented to your attention contains the proceedings of The Eighth International Symposium on Practical Design of Ships and Other Floating Structures (PRADS) which was held in the People's Republic of China in 2001; it was the first Symposium of this kind to be held in the XXI Century. The ultimate aim of all PRADS symposia is to advance the design of ships/floating structures as a professional discipline by means of exchanging professional knowledge as well as promoting discussion of all relevant topics in naval architecture and marine/offshore engineering. Furthermore, this 8th Symposium was intended to significantly increase the professional co-operation at the international level and provide a good chance for the new development of production and design technology of ships/floating structures for safety, efficiency, economy and environmental production...

Category: SHIP DESIGN & CONSTRUCTION | Views: 213 |

ITF Seafarers for Android

   This release of the ITF Seafarers will work on Android-based devices. This app will allow seafarers to get the access to all necessary data on the vessels in question. The search can be made by the ship name or her MMSI number. There are online and offline modes in this program. As usual, no crack required. The software was checked for viruses and other malware.

Category: MISCELLANEOUS | Views: 79 |

Legal Briefing - Australia Toughens Maritime Pollution Laws

   This publication prepared and released by the UK P&I Club together with the UK Defence Club, is dedicated to the maritime pollution legislation in Australia, and in particular to the very latest amendments in it. Though very short, it still covers such the important topics as the recent changes to Australia’s Maritime Legislation, background and key amendments, Navigation Act 1912 and Protection of the Sea Act 1983...

Category: P & I PUBLICATIONS | Views: 56 |

Probabilistic Methods for Planning of Inspection for Fatigue Cracks in Offshore Structures

   The purpose of this recommended practice (RP) is to provide guidelines for use of probabilistic methods for inspection planning of fatigue cracks in jacket structures, semisubmersibles and floating production vessels. This also includes guidelines for fatigue analysis of these structures as required for probabilistic analysis. The presented analysis methodology is rather general and it may be used also for inspection planning of other structures subjected to significant dynamic loading such as jackups. Optimal allocation of inspection effort for the considered offshore structures with respect to fatigue cracks is aimed for. Due to the nature of the fatigue phenomena minor changes in basic assumptions can have significant influence on the predicted crack growth rates. Calculated fatigue lives are sensitive to input parameters using standard design analysis procedures. Calculated probabilities of fatigue failure using probabilistic methods are even more sensitive to the methodology and to the input parameters to the analyses. It is thus important to provide as accurate fatigue analysis of the considered structures as possible before the probabilistic analyses are performed. For design purpose it is appropriate to use conservative values for parameters required for the analyses. However, for planning inspection for fatigue cracks in offshore structures it is important to use relevant (expected or best estimate) values and associated uncertainties in order to predict accurate results that allow the inspections to be directed to hot spot areas where the fatigue cracks are most likely to occur first. Thus, it is important to base planning of in-service inspection of offshore structures on fatigue analysis that has been performed in a consistent way. By "consistent" is understood that all joints or potential hot spots are analysed based on a similar methodology such that any inherent "conservatism" in the analysis methodology is similar for the different hot spots. Use of inconsistent assumptions in analyses may direct inspection to areas with long fatigue lives snd one might thus get a false impression of the reliability of the structure with respect to fatigue. Design of offshore structures with respect to fatigue is normally based on S-N data (test data) derived from constant amplitude testing. In-service inspection for fatigue is normally performed in order to assure that possible cracks in the structure, which may have been present from the initial delivery or have arisen at a later stage during the service life, do not exceed a critical size...

Category: CLASS PUBLICATIONS | Views: 81 |

US Cold War Aircraft Carriers - Forrestal, Kitty Hawk and Enterprise Classes

   The Kitty Hawk class, a variation of the initial Forrestal design, featured a reconfigured flight deck that significantly enhanced air operations. Notably, the port elevator was moved aft of the angled deck runway and the starboard island was moved to the rear, with elevators one and rwo now forward of the island. Defensive guns were also removed and replaced by new surface-to-air missile systems. This new configuration would go on to form the basic flight deck arrangement of not only Enterprise, but also of the future Nimitz-and Gerald Ford-class carriers. The Forrestal class and the improved Kitty Hawk class, together with the single-ship-class USSJohn R Kennedy and USS Enterprise, the latter the world's first nuclear-powered aircraft carrier, constituted a large part of the United States Navy carrier forces throughout the Cold War, including the Cuban Missile Crisis, the Vietnam War, and the high-tension 1970s and 1980s. Collectively, these carriers made 33 deployments to Vietnam, forming the heart of the heavy carrier strike forces. Indeed, only USS John R Kennedy did not serve in Vietnam...

Category: NAVY FLEET | Views: 109 |

UNITOR Marine Chemical Manual

   There are five main chapters in this Marine Chemical Manual prepared and released by UNITOR professionals - Fuel and oil treatment, Cleaning, maintenance and biochemicals, Water treatment, Pool water treatment, and Equipment. This is a really must-have publication for every crew member or any other person involved in transportation or other treatment of the chemicals.

Category: PRODUCT CATALOGUES | Views: 115 |

The Pirate Ship 1660-1730

   Here is an excellent and perfectly illustrated reference book on the fighting ships of the past, artillery and transport. The publication will be very interesting to the naval history enthusiasts and to everyone interested in warships. The topics covered in the book include the design of the ideal pirate ship, pirate flagships and small pirate ships, the origins of the pirate ships, pirate ships in action. In addition, this book is supplemented with a short glossary of terms.

Category: NAVAL HISTORY | Views: 102 |

International Conference IMLA 19 Opatija 2011

   Nowadays, the international shipping industry is challenged by so many things not the least of which is the uncertain fall-out from the economic crisis causing rippling effects elsewhere. This shortage cannot be remedied with an instant fix, as seafarers have to man more technologically advanced and sophisticated ships which need well trained and adjusted people who have also gained the required qualifying internship at sea. Safety, security, shipping's environmental credentials and the entire future sustainability of the shipping industry are totally dependent on the development of an adequate pool of capable and effective manpower resource. There is no doubt that manpower training and development and all of the wider issues connected with human resources in shipping, to include manning and to some extent the land-based support system, will become one of the biggest challenges that the industry and all those connected with it will face over the coming years. That of course has direct relevance and significance for your association IMLA. And so my presentation is framed around the relevance of the just completed review and revision of the International Convention on the Standards of Training and Certification of Watchkeeping, the STCW Convention and Code.

Category: INTERNATIONAL CONFERENCES | Views: 68 |

Legal Briefing - Safe Port and Ebola Virus Disease

   Safe port and Ebola virus disease; Introduction - Definition of “safe port”, Black-listing at subsequent ports; Threat to health of the crew members; Definition of the Ebola, ways of transmission and basic symptoms; Incubation period; Safety - Consequence of breach, Keeping safe; Conclusion.

Category: P & I PUBLICATIONS | Views: 53 |

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