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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
71

Livscykelanalys av en eldriven båtmotor / Life Cycle Analysis of an electric boat engine

Samaan, Bashar, Thunell, Ellinor January 2024 (has links)
I denna rapport undersöks motorn ZM10 genom att göra en livscykelanalys, även kallad LCA. Analysen görs för att företaget ZPARQ AB ska kunna få en bild av vilken miljöpåverkan deras motor har vid tillverkning. I rapporten är energiåtgång och koldioxidutsläpp det som undersöks. Motorn som är en eldriven OEM-motor med komponenter som tillverkas i framförallt Kina används för marin framfart och är tillverkad för fiskebåtar samt mindre segelbåtar. Det är en motor som till skillnad från sina konkurrenter är just eldriven och i och med det, är den mycket lättare än de fossildrivna konkurrerande båtmotorerna. För att göra livscykelanalysen undersöks en full beställning som företaget ZPARQ AB ämnat att göra. En beställning ser i dagsläget ut att bli på 100 beställda motorer och för att göra analysen används två standarder, ISO 14040 och ISO 14044. Dessa hjälper till att förklara hur man går tillväga för att göra livscykelanalysen men också för hur man levererar resultatet. De fyra huvudkategorierna i en livscykelanalys, mål och omfattning; inventeringsanalys; miljöpåverkan; rapportering, undersöks för att kunna få en helhetsbild av analysen. Genom att göra en strukturerad analys av målet och omfattningen kan man senare gå vidare med inventeringsanalys. Inventeringsanalysen visar på vad det är för olika komponenter, dess material och tillverkningsprocessen av dessa material. Även transporterna för komponenterna från det att de tillverkas till att de hamnar på företagets lager i Älta. Efter att den iterativa processen som är inventeringsanalysen har gjorts, fortsätter man med en miljöpåverkansbedömning, även kallad LCIA. Den visar att tillverkningen av materialet är det som står till grund för den största delen av miljöpåverkan i form av använd energi i (ca 80 300 MJ) samt av koldioxidutsläpp (6 100 kg CO2). Det materialet med mest energi- och koldioxidutsläpp visar sig vara aluminium. Under tillverkningsprocessen står aluminiumet för det största utsläppet i båda kategorierna. Transporten bidrar förhållandevis lite till miljöpåverkan med transporter för de flesta komponenter från Asien till Sverige. Inom standarden ISO 14044 kan man redovisa möjliga förbättringar som kan göras, i detta fall undersöks skillnaden med att använda delvis återvunnet aluminium. Det påvisar minskningar i utsläppen med cirka 18 procent mindre energiåtgång och 17 procent mindre kg CO2 på de 100 motorer som undersöks. Resultatet av analysen är svår att jämföra med annat då den endast sträcker sig från tillverkning av material och komponenter till företagets lagerhållning. I andra analyser undersöker man hela produktens livscykel från “vagga till grav”, denna analys handlar också, till skillnad från andra, om en prototyp. Avslutningsvis rekommenderas det att fortsätta arbetet genom att göra en fullskalig livscykelanalys efter produktens prototypfas är klar, från just vagga till grav för att kunna ge företaget siffror på vad det finns för miljöpåverkan i hela livscykeln. Även att fortsätta arbetet genom att använda programvaror och/eller databaser för att kunna undersöka vad för typer av utsläpp koldioxidutsläppet består av, rekommenderas. / In this report, the ZM10 engine is examined through a life cycle analysis (LCA). This analysis is conducted to provide ZPARQ AB with an understanding of the environmental impact of their engine during manufacturing. The report primarily investigates energy consumption and carbon dioxide emissions. The ZM10, an electric OEM engine manufactured primarily in China, is used for marine propulsion in fishing boats and smaller sailboats. Unlike its fossil-fueled counterparts, this electric engine is significantly lighter. To perform the life cycle analysis, a full order that ZPARQ AB intends to place is examined, currently comprising 100 engines. The analysis adheres to two standards, ISO 14040 and ISO 14044, which guide the methodology of the LCA and the presentation of results. The four main categories of the life cycle analysis—objectives and scope, inventory analysis, environmental impact, and reporting—are explored to provide a comprehensive overview. The analysis begins with a structured examination of the goal and scope, which is followed by an inventory analysis. This analysis details the various components, their materials, and their manufacturing processes. It also includes the transportation of the components from their production sites to the company’s warehouse in Älta. After completing the inventory analysis, the environmental impact assessment (LCIA) is conducted. The LCIA reveals that material manufacturing, particularly of aluminum, constitutes the largest portion of environmental impact, accounting for approximately 80,300 MJ of energy use and 6,100 kg of CO2 emissions. Aluminum manufacturing is the largest contributor to emissions in both categories, while transportation from Asia to Sweden contributes relatively little to the overall environmental impact. Within the framework of ISO 14044, potential improvements are assessed, including the use of partially recycled aluminum. This change could reduce energy consumption and CO2 emissions by approximately 18 percent and 17 percent, respectively, across the 100 engines analyzed. The results of this analysis are challenging to compare with others since it only extends from the manufacture of materials and components to the company’s warehousing. Unlike other analyses that examine the entire life cycle from "cradle to grave," this study focuses on a prototype. In conclusion, it is recommended that ZPARQ AB continue this work by conducting a full-scale life cycle analysis post-prototype phase, covering the entire life cycle "from cradle to grave," to provide comprehensive environmental impact figures. It is also advised to continue utilizing software and/or databases to further investigate the specific types of emissions comprising the CO2 emissions.
72

Analýza čínského překladu románu Tři muži ve člunu se zaměřením na převod humoru / An Analysis of Chinese translation of the novel Three Men in a Boat with a special focus on translating humor

Klusáčková, Alžběta January 2021 (has links)
This Master's thesis analyzes Three Men in a Boat, a famous work by a British author Jerome Klapka Jerome. It is a very popular humorous novel published in 1889 which rightly belongs to the classics of British humour and is still attracting new readers today. The novel has been translated into dozens of languages including Chinese. The thesis is based on comparing the original work to its modern Chinese translation produced by Wang Bi, the analysis is conducted in the direction from English to Chinese. For reference, it also uses the Czech translation by J. Novák. Methodologically, the thesis builds on structuralist terminology created by the Czech translation theorist Jiří Levý. For text analysis, it utilizes an influential theoretical concept invented by the German translation scholar Christiane Nord. It also takes into account specialized studies on humour literature and the problems of its translation. The thesis attempts to define British humour and characterize the author's devices to achieve comic effect. It thoroughly decribes the strategies chosen for translating some of the individual literary devices (e.g. hyperbole, irony, understatement or personification) into Chinese. The complex analysis presents specific examples of translating verbal, cultural and situational humour. It also...
73

Man över bord : En analys av olyckor med beredskapsbåtar / Man overboard : An analysis of accidents involving rescue boats

Ivarsson, Gabriella, Forsblom, Emelie January 2016 (has links)
Fartygets beredskapsbåt är en viktig del i sjöräddningsarbetet för att till exempel rädda en nödställd person ur vattnet, men dessvärre sker olyckor i samband med användandet av denna. Syftet med detta arbete var att undersöka varför olyckor med beredskapsbåtar inträffar, genom att analysera haverirapporter om beredskapsbåtsolyckor ombord på fartyg med anknytning till Europa. 13 rapporter analyserades med hjälp av HFACS-MA-modellen. Metoden kategoriserar orsaker till olyckor och har givit en bild av vilka faktorer som varit de mest frekvent bidragande i de undersökta olycksfallen. Resultatet visade att fel och brister i konstruktionen (av till exempel dävert, krok och säkerhetsbrytare), otillräcklig eller obefintlig dokumentation inom organisationen (checklistor, manualer och instruktioner) och den fysiska arbetsplatsen (hur arbetsplatsen var utformad) var de främsta orsakerna till att olyckor med beredskapsbåtar inträffade. Av resultatet framgick även att kategorin förutsättningar, som till exempel yttre miljö och kommunikation, var en stor bidragande faktor. / The ship's rescue boat is an important part of search and rescue, for example to rescue a person in distress from the water, but unfortunately accidents happen in conjunction with the use of the boat. The purpose of this essay was to investigate why accidents with rescue boats occur by analyzing accident reports involving rescue boat accidents on ships with a connection to Europe. 13 reports were analyzed with the HFACS-MA model. The method categorizes the causes of accidents and has provided a picture of the factors that have been most contributory in the investigated accidents. The result showed that deficiencies in the design (for example davit, hook and breaker), insufficient or nonexistent documentation within the organization (checklists, manuals and instructions) and the function of the physical workplace, were the main reasons for why accidents involving rescue boats occur. The result also showed that the category preconditions, such as the external environment and communication, was a major contributing factor.
74

Boat Storage System

YiPing, Jin, Long, Tao January 2017 (has links)
Nowadays, people have a boat of themselves become more and more popular. People use their boat for fishing trip and taking holiday. However, most of them do not want to take care of their boat by themselves. One of the reasons might be the place of a boat occupied. Recently, a method has been used is to store boat on the Boat Hotel. They pay for the rent of a boat garage and also hire someone to take care of their boat. Place the boat on the boat shelf with several layers is the most common method. They use forklift to take in/out the boat when boat owner need use their boat. On the conditional of this situation, if we want to take a boat which is inside of boat shelf, then we need take all outside boat out.  It’s really an inefficiency way, so we need improve it. In this study, we aim to design a Boat Storage System based on the existing shelf and meet all requirement of existing boat. This system should be reliable, efficient, economic, operable and flexible. The main function of the Boat Storage System is to take in/off the boat more quickly and automatically and efficiently. The system is similar with the stereo parking garage. Which have a paternoster controlled by PLC program. Consider of the boat is heavier than the car. Our storage structure should be more stable. Our design only need one person to operate it. The whole process will cost few seconds. This building will be established in the water. Therefore, the owner only need to push the button and then the boat will be prepared in the water automatically. The modelling and assembly was designed in Autodesk Inventor 2017. This hardware circuit of PLC was drawn in AutoCAD. The software to design the PLC is GX Works 2. And we used ANSYS Workbench 17.2 to analysis the structure. The analysis will prove the structure is safety and strong enough. And the simulation will prove the system is possible. Our conclusion is that this system has a good future and general application in the market.
75

Gestão de projetos : caso da construção de embarcação tipo fast ferry

Lima, Breno Gregório 24 June 2010 (has links)
Made available in DSpace on 2015-02-04T21:38:52Z (GMT). No. of bitstreams: 1 Breno Lima.pdf: 4802484 bytes, checksum: 87de192cb75be4b1458cb08c7a695c60 (MD5) Previous issue date: 2010-06-24 / Esta dissertação tem como objeto um projeto de construção e implementação de embarcação em alumínio naval, propelida por motores alimentados com duplo combustível (diesel e gás natural), o Ferry Boat Ivete Sangalo , destinada a operar na travessia de balsas entre as cidades de Salvador e Itaparica, no Estado da Bahia. Foi analisado o projeto com foco nos elementos pertinentes a gestão de projetos propostos pelo Project Management Body of Knowledge - PMBOK. Pela especificidade e complexidade do projeto, envolvendo diversas entidades, Estaduais, Federais, Municipais, públicas e privadas, a obtenção de financiamentos e o desempenho representaram um desafio a ser vencido pela empresa. Partiu-se do problema: Qual a importância da Gestão de Projetos e quais aspectos devem ser considerados na gestão do projeto de construção e de implementação de embarcação, tornando-o exeqüível? Qual a relação entre a gestão de projetos e a construção de embarcação do ponto de vista do negócio? Os dados foram analisados, pela sistematização dos processos na gestão de projetos, pois embora se trate da construção de um produto, será avaliada a gestão do projeto de construção, evidenciando quais os elementos necessários para viabilizar um projeto deste tipo. Os elementos analisados foram: integração, escopo, prazo, custo, qualidade recursos humanos, comunicações, riscos e aquisições do projeto. A construção naval no Brasil não é linear e dependente de financiamento específico e exíguo, sujeitando-a a fatores nem sempre controláveis. O estudo evidência a complexidade dos projetos do setor, com significativa importância aos aspectos de prazo e custos, determinados pela característica da execução, pelo método de desenvolvimento adotado e por cada atividade a ser realizada segundo o método escolhido, ressaltando a necessidade de uma gestão integrada dos processos.
76

Vikingatida brickväv från Valsgärdes båtgravar : en teknikbeskrivning samt några tankar / Viking age tablet weave from the boat-graves in Valsgärde : a technical description and some thoughts

Pallin, Karolina January 2019 (has links)
In the collections of Uppsala university, cared for by the university Museum Gustavianum, is the collection of finds from the Valsgärde cemetery, located 4 km north of Uppsala. The cemetery contained boat graves, chamber graves, cremation graves and other finds. Among the boat graves, dating from around c 600–c 1000 AD, some includes textile finds. The primary source material for this study are the tablet woven bands found in three of the Viking age boat graves. I first came across these tablet woven borders in 2014 when writing an early stage thesis in Textile history (Textilvetenskap), a subject taught at Uppsala university at the department of Art History. This article is based on the research I carried out then and have since continued with. The research focuses on the weaving techniques and materials used in the bands. An attempt to work with a theoretical framework based in crafts research and crafts as a concept and idea – instead of just being a method for understanding the production process from a technical perspective – is also made. The bands are brocaded with metal thread, similar to the Birka bands. However, in the Valsgärde bands a spun thread is used in all bands but one. What makes the bands from Valsgärde particularly interesting are the two different weaving techniques present.  Some of the bands are patterned with the quite common technique “lifted warp threads”, and some with an additional weft in a soumak technique. Metal brocaded bands patterned with soumak are unusual both in the Viking age and in the later medieval material. The theoretical framework of the study shows that the bands can be interpreted as part of a symbolic funeral outfit. If the bands are used prior to the funeral is not known. The study draws on material from both earlier and later periods to discuss why this dress decor appears in Viking age Scandinavia, and particularly in East Sweden. The fashion of the Frankish crusade era take part in the discussion and so does the tirazsystem of early Islam. The study concludes that understanding Viking age dress is much more than knowing what the persons wore. The symbolic dress in the graves tells us about some kind of fashion – or vestment – system and if we can read the code, we would be a lot closer to an understanding about the Scandinavian mentality of the time. This however is a task for a larger study, this one has only shown where to start.
77

Le musée national de la Marine : histoire d'une institution et de ses collections (1748-1998) / The National Maritime Museum : history of an institution and its collections (1748-1998)

Rio, Gaëlle 15 December 2018 (has links)
Figurant parmi les grands musées nationaux, le musée de la Marine est le plus ancien musée d’histoire maritime en France, dont les origines remontent au milieu du XVIIIe siècle. Fondé à partir de la collection de modèles de bateaux donnée au roi Louis XV par l’académicien Henri Louis Duhamel du Monceau en 1748, le musée Dauphin ouvre au Louvre en 1827 sous Charles X, à destination avant tout des élèves de l’école d’ingénieurs constructeurs de la Marine dans une finalité d’instruction. L’approche monographique et institutionnelle permet de mettre en évidence trois grands moments de l’histoire de ce musée : la lente genèse du musée naval (1748-1827) dans le contexte des Lumières et d’une culture scientifique et technique ; la longue période du musée naval au palais du Louvre (1827-1939) au cours de laquelle se forge l’identité de l’institution autour de collections techniques et ethnographiques à vocation pédagogique ; le transfert du musée au palais de Chaillot et son expansion au XXe siècle avec la modernisation du site parisien, l’extension de ses collections aux cinq marines et la constitution d’un réseau des musées des ports (1939-1971). Devenu établissement public administratif en 1971, le musée national de la Marine se transforme à la fin du XXe siècle pour devenir le grand musée maritime du XXIe siècle. Cette étude s’attache à cerner les enjeux sociaux, culturels et idéologiques qui ont présidé à la création et au développement de ce musée, à interroger le statut de ses collections, entre technique, art et instrument de propagande ou de communication, et enfin à analyser la question plus large du rôle du musée dans la société française, d’un lieu de représentation du pouvoir à un espace au service du public. / One of the major national museums, The Marine Museum is the oldest museum of maritime history in France, whose origins date back to the mid-eighteenth century. Founded from the collection of boat models given to king Louis XV by the Academician Henri Louis Duhamel du Monceau in 1748, the Dauphin Museum (as it was called) opened in the Louvre in 1827 under the reign of Charles X ; primarily intended for teaching purposes to the construction engineers of the Navy. The monographic and institutioal approach highlights three major moments in the history of this museum : the slow genesis of the naval museum (1748-1827) in the context of the Enlightenment and of the development of scientific and technical culture ; the long period of the naval museum at the Louvre Palace (1827-1939), during which the identity of the institution is based on technical and ethnographic collections for educational purposes ; the transfer of the museum to the Palais de Chaillot and its expansion in the 20th century with the modernization of the Paris site, the extension of its collections to the five Navies and the creation of a network of port museums (1939-1971). Having become a public administrative institution in 1971, the National Marine Museum was transformed at the end of the 20th century into the great maritime museum of the 21st century, as it is now. This study seeks to identify the social, cultural and ideological issues that led to the creation and the development of this museum, to question the status of its collections, between technique, art and propaganda or communication instrument, and finally, to analyze the broader question of the museum's role in French society, from a place of representation of power to a space in the service of the public.
78

La ligne symboliste française dans le “Giusto della vita” de Mario Luzi (1935-1956) / The french symbolism in the « Giusto della vita » by Mario Luzi

Tarani, Tommaso 01 February 2013 (has links)
Cette thèse poursuit l’objectif d’interpréter la première partie du corpus poétique de Mario Luzi, par l’auteur lui-même recueilli sous le titre de Giusto della vita (1935-1956), en le confrontant avec des thèmes et des auteurs classiques de la poésie symboliste française. En effet, la poésie de Luzi compte parmi ses tâches principales, celle de récupérer presque un siècle d’expérience symboliste en la condensant dans le tronçon de la tradition poétique italienne.Les trois parties de la thèse suivent l’évolution chronologique des recueils luziens,considérés dans leur version définitive au sein de la première partie du corpus poétique publié en volume par l’auteur en 1960. La première partie portera donc sur l’analyse du premier livre poétique de Luzi, La Barca, la deuxième sur les recueils soi-disant « hermétiques» (AvventoNotturno, Un Brindisi, Quaderno Gotico), la troisième sur les deux recueils de l’après-guerre(Primizie del Deserto et Onore del Vero). / The main task of this work it’s to propose a hermeneutic line to the first part of Luzi’spoetic work, Il Giusto della Vita (1935-1956), by confronting it with some classical themes andauthors of the French symbolism. The first part will comment the first poetical Luzi’s book, La Barca, the second one the hermetical books (Avvento Notturno, Un Brindisi, Quaderno Gotico),the last one the two books of the immediate after-war period (Primizie del deserto et Onore delVero)
79

Guidelines for South African boatbuilding companies to market boats in China

Ding, Yi January 2008 (has links)
Thesis (MTech (Marketing))--Cape Peninsula University of Technology, 2008 / The opening ceremony of the 29th Olympic Games displayed a historical tapestry of Chinese culture to the world. At the same time, the 2008 Games presented new opportunities for Chinese people to experience aspects of the outside world, which may have previously been closed to them. Aquatic sport is one such example, especially recreational sailing and yachting, which are novel concepts within Chinese society. Given China’s rapid economic growth, this burgeoning market has potential for South African exporters, including the recreational marine sector. However, South African manufacturers have not promoted their products, many of which are of a high standard, in this market. Are there barriers, which may prevent successful exports of marine products to China? Would a deeper understanding of China’s unique business culture assist the local boatbuilding industry to successfully present their products in China? The purpose of this study is to assist South African boat builders to expand their business operations in China by developing guidelines for marketing strategy formulation. The entire research study shows that there are indeed opportunities to market boats in China, while the market is mainly located in coastal cities. The research reviewed South African trade with China, successful entry of South African companies into the Chinese market, and shows that potential does exist for penetration of the Chinese market by South African marine industries. Based on a further review of the internal marketing environment in China, it is established that a unique feature of Chinese business culture, termed Guanxi, might be a major barrier for penetration of the Chinese boat market by the South African marine industry.
80

Desenvolvimento conceitual, projeto, construção e testes de um barco bidirecional sem leme movido por kite

LUNDGREN, Edwin Althor Jürgen Nieling 24 July 2015 (has links)
Submitted by Haroudo Xavier Filho (haroudo.xavierfo@ufpe.br) on 2016-03-17T18:54:32Z No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Tese de Doutorado em Engenharia Mecânica - Edwin Lundgren - Recife 2015.pdf: 6647333 bytes, checksum: 562061d27a257684cbc87a9f44cca7a8 (MD5) / Made available in DSpace on 2016-03-17T18:54:32Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Tese de Doutorado em Engenharia Mecânica - Edwin Lundgren - Recife 2015.pdf: 6647333 bytes, checksum: 562061d27a257684cbc87a9f44cca7a8 (MD5) Previous issue date: 2015-07-24 / O presente trabalho apresenta como tema central o desenvolvimento e a realização de um conceito tecnológico inovador para propulsionar embarcações utilizando a força do vento por meio de uma pipa dirigível de alto desempenho aerodinâmico conhecida como Kite. Para demonstrar a eficiência da tecnologia aplicada é projetado, manufaturado e testado um barco protótipo com quatro metros de comprimento capaz de carregar uma ou duas pessoas. Kites modernos são projetados para operar em regime de sustentação aerodinâmica e podem ser movimentados de forma razoavelmente controlada em uma região denominada “janela de vento” e possibilitam a geração de forças perpendiculares á direção do vento. Assim, uma embarcação tracionada por Kites e equipada com uma quilha pode realizar cursos cruzados contra o vento. O equilíbrio hidrodinâmico da embarcação tratada neste trabalho é alcançado através de tecnologia com uso de uma plataforma giratória azimutal e um conjunto de mecanismos para o manuseio do Kite e o controle do rumo do barco. É apresentado o cálculo para relacionar o equilíbrio da embarcação com o voo do Kite. Não há necessidade de leme para controlar o rumo da embarcação, portanto o barco protótipo deste trabalho não apresenta algum leme. Os dados obtidos em teste foram relacionados, processados e os resultados quantitativos de percursos e manobras são apresentados e descritas as condições e posicionamentos das grandezas relevantes. A Propulsão do barco prototipo por meio de um Kite mostrou bons resultados em ventos acima de 18 km/h (10 nós). Nestas condições ficou comprovado a eficiência do sistema inovador para propulsionar e guiar barcos com Kites como o protótipo apresentado no presente trabalho. / This work has as its central theme the development and realization of an innovative technological concept of boat propulsion using the wind power through a steerable Kite. To demonstrate the effectiveness of the applied technology there is designed, manufactured and tested a prototype boat with four meters in length capable of carrying one or two people. Modern Kites are designed to operate in aerodynamic lift system. As a result, these devices can be moved in fairly controlled manner in a semi-spherical region called "wind window" and allow the generation of perpendicular forces to wind direction. Thus, a vessel pulled by a Kite and equipped with a good keel can perform crossed courses against the wind. The hydrodynamic balance of the vessel treated in this work is achieved through the use of a technology with azimuthal platform and a set of mechanisms for Kite handling and controlling the direction of the boat. A new method of calculation of the balance of the boat during the Kite flight is presented as well as some results of hydrodynamic simulations. Another advantage of the azimuth platform technology is the ability to control the direction of the boat only by the Kite control devices and the relative positioning of the azimuthal platform within the hull. There is no need of a rudder to control the direction of the boat, so the boat prototype of this work does not present any rudder. The test data were related, processed and quantitative results concerning courses and maneuvers are presented and the conditions and positions of the relevant magnitudes are described. The propulsion of the prototype boat by a Kite showed good results in winds over 18 km/h (10 knots). Under these conditions the efficiency of the innovative propulsion system for boats with Kites as the prototype presented in this work was testified. The innovative directional control allows the handling of the vessel at high upwind courses. The bidirectionality of the prototype boat increases the possibilities of executing maneuvers with reversal of the navigation direction and easy windward routes.

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