This thesis provides a more accurate narrative of the origin and development of the Shetland vernacular boat in all its forms. Shetland, being treeless, imported boats from Norway, described as 'kits,' implying that they were quick and easy to assemble. New evidence suggests that this is incorrect; instead, boats-in-boards were rough-cut smuggled components that took longer and required a higher degree of boatbuilding skill to construct than previously acknowledged. This new evidence also establishes that boatbuilding began in Shetland c.1780, some 27 years earlier than formerly thought. Scholars espouse that Shetland boats were of lineal Norse descent. Analysis of late nineteenth century indigenous boats found some Norse features, but, when hull-forms, and methods of construction were compared with similar craft from Faroe and Norway it was discovered that Shetland boats diverged from the west Norwegian Oselvar (that retained a hull-form, and many construction features found in the Norse period) proving that indigenous boats were not of direct Norse descent; instead they were a unique Shetland product. Subsistence, ferrying, and recreational boat use had been neglected by previous researchers. This thesis corrects this imbalance, discovering that boat ownership was ubiquitous across all strata of society with subsistence and ferrying use remaining unaltered for several centuries. By c.1880 competitive boating had become popular. Although vernacular in origin, these new racing boats were influenced by construction methods from elsewhere. The new evidence suggests xiii that the continual development of the Maid Class made what was once an egalitarian sport into an elitist one, and, ironically, this contributed to the disappearance of the vernacular boat. Road transport superseded vernacular craft, exemplified by the introduction of the roll-on-roll-off ferries during the mid 1970s, and it was a combination of these factors that caused Shetlanders to drift away from their vernacular boat heritage.

No description available.

Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1993. / Vita. Abstract. Includes bibliographical references (leaves 87-91). Also available via the Internet.

Thesis (Master)--İzmir Institute of Technology,İzmir, 2005 / Keywords: Recreational boat design, boat construction materials, FRP boat production methods. Includes bibliographical references (leaves. 77).

Thesis (Ph.D.) - James Cook University, 2004. / Typescript (photocopy). Bibliography: leaves 237-260.

Thesis (M.Sc.)--College of William and Mary. / Vita. Includes bibliographical references. Also available via the World Wide Web.

Marine safety education initiatives are most often constructed along rational functionalist lines that tend to assume that accidents and deaths that accompany them are caused by lack of appropriate technical knowledge, equipment failure or the irrational behaviour of participants. One sector identified by this research, which seems to have a disproportionally high rate of involvement in these incidents, is that of small open skiffs < 5.5m - usually made from aluminum. Most of these incidents take place on the inland waterways of the Canadian Shield. I look at the activity from the perspective of two separate but parallel discourses on the topic: the official discourse as portrayed by the Canadian Coast Guard, Search and Rescue, the Power and Sail Squadrons, the Canadian Red Cross and various police forces and the popular discourse as seen in lifestyle commercials, advertising catalogues, outdoors sporting goods shows and sports television. I suggest throughout that gender, race and economic marginality are powerful influences that must be factored into our educative efforts if we, the Canadian boating public, are to reduce the number of fatalities. The construction of the subjectivites of the participants will be considered in the context of several competing conceptions concerning the nature of Nature in the postmodern era. A form of narrative analysis known as deconstruction is used to interrogate the theoretical foundations of the textual artefacts. I use postcolonial theory to develop a distinctively Canadian narrative concerning the underpinnings of a reconceptualized marine safety education. In the final section, some considerations for extending this work into other areas of wilderness recreation were explored.

Thesis (Ph. D.)--University of California, San Diego, 2007. / Title from first page of PDF file (viewed October 2, 2007). Available via ProQuest Digital Dissertations. Vita. Includes bibliographical references (p. 88-93).

Marine safety education initiatives are most often constructed along rational functionalist lines that tend to assume that accidents and deaths that accompany them are caused by lack of appropriate technical knowledge, equipment failure or the irrational behaviour of participants. One sector identified by this research, which seems to have a disproportionally high rate of involvement in these incidents, is that of small open skiffs < 5.5m - usually made from aluminum. Most of these incidents take place on the inland waterways of the Canadian Shield. I look at the activity from the perspective of two separate but parallel discourses on the topic: the official discourse as portrayed by the Canadian Coast Guard, Search and Rescue, the Power and Sail Squadrons, the Canadian Red Cross and various police forces and the popular discourse as seen in lifestyle commercials, advertising catalogues, outdoors sporting goods shows and sports television. I suggest throughout that gender, race and economic marginality are powerful influences that must be factored into our educative efforts if we, the Canadian boating public, are to reduce the number of fatalities. The construction of the subjectivites of the participants will be considered in the context of several competing conceptions concerning the nature of Nature in the postmodern era. A form of narrative analysis known as deconstruction is used to interrogate the theoretical foundations of the textual artefacts. I use postcolonial theory to develop a distinctively Canadian narrative concerning the underpinnings of a reconceptualized marine safety education. In the final section, some considerations for extending this work into other areas of wilderness recreation were explored. / Education, Faculty of / Graduate

This thesis investigates the detection and classification of small boats using a passive sonar system. Noise radiated from a small boats consists of broadband noise and harmonically related tones that correspond to parameters in the boats engine and propeller. A novel signal processing method for detection and discrimination of noise radiated from small boats has been developed. There are two main components to the algorithm. The first component detects the presence of small boats by the harmonic tonals radiated from the boat propeller and engine. The second component was designed to extract the a signature from passive sonar data. The Harmonic Extraction and Analysis Tool (HEAT) was designed to estimate the fundamental frequency of the harmonic tones, track the fundamental frequency using a Kalman filter, and automatically extract the amplitudes of the harmonic tonals to generate a harmonic signature for the boat. The algorithm is shown to accurately extract theses signatures, and results show that the signatures are unique enough that the same boat passing by the hydrophone multiple times can be recognized.