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Canadian Fairmile B
The Canadian Fairmile B was a motor launch built during the Second World War for the Royal Canadian Navy. They were adaptations of the British Fairmile B motor launch design incorporating slight modifications for Canadian climatic and operational conditions. Eighty-eight were built in Canada for service with the Coastal Forces of the Royal Canadian Navy in home waters, of which eight were supplied to the United States Navy. They were known by their crews as "The Little Ships", "Little Fighting Ships", "Q-Boats", "MLs" or "Holy Rollers" (due to their violent pitching and tossing), History In the spring of 1940 Canada's Naval Staff realized that the Royal Canadian Navy (RCN) needed more vessels equipped with ASDIC sets for anti-submarine patrols in the St. Lawrence River and Pacific Coast. Learning "that the Admiralty was planning to build Type "B" Fairmile motor launches for such work in British waters", the RCN began to investigate the comparative advantages of building an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ASDIC
Sonar (sound navigation and ranging or sonic navigation and ranging) is a technique that uses sound propagation (usually underwater, as in submarine navigation) to navigate, measure distances (ranging), communicate with or detect objects on or under the surface of the water, such as other vessels. "Sonar" can refer to one of two types of technology: ''passive'' sonar means listening for the sound made by vessels; ''active'' sonar means emitting pulses of sounds and listening for echoes. Sonar may be used as a means of acoustic location and of measurement of the echo characteristics of "targets" in the water. Acoustic location in air was used before the introduction of radar. Sonar may also be used for robot navigation, and SODAR (an upward-looking in-air sonar) is used for atmospheric investigations. The term ''sonar'' is also used for the equipment used to generate and receive the sound. The acoustic frequencies used in sonar systems vary from very low (infrasonic) to extrem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Lakes Region
The Great Lakes region of North America is a binational Canadian–American region that includes portions of the eight U.S. states of Illinois, Indiana, Michigan, Minnesota, New York, Ohio, Pennsylvania and Wisconsin along with the Canadian province of Ontario. Quebec is at times included as part of the region because, although it is not in a Great Lake watershed, it encompasses most of the St. Lawrence River watershed, part of a continuous hydrologic system that includes the Great Lakes. The region centers on the Great Lakes and forms a distinctive historical, economic, and cultural identity. A portion of the region also encompasses the Great Lakes Megalopolis. Participating state and provincial governments are represented in the Conference of Great Lakes and St. Lawrence Governors and Premiers, which also serves as the Secretariat to the Great Lakes St. Lawrence Compact and the Great Lakes–Saint Lawrence River Basin Sustainable Water Resources Agreement. The Great Lake ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hull (watercraft)
A hull is the watertight body of a ship, boat, or flying boat. The hull may open at the top (such as a dinghy), or it may be fully or partially covered with a deck. Atop the deck may be a deckhouse and other superstructures, such as a funnel, derrick, or mast. The line where the hull meets the water surface is called the waterline. General features There is a wide variety of hull types that are chosen for suitability for different usages, the hull shape being dependent upon the needs of the design. Shapes range from a nearly perfect box in the case of scow barges to a needle-sharp surface of revolution in the case of a racing multihull sailboat. The shape is chosen to strike a balance between cost, hydrostatic considerations (accommodation, load carrying, and stability), hydrodynamics (speed, power requirements, and motion and behavior in a seaway) and special considerations for the ship's role, such as the rounded bow of an icebreaker or the flat bottom of a landing craft. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Destroyer
In naval terminology, a destroyer is a fast, manoeuvrable, long-endurance warship intended to escort larger vessels in a fleet, convoy or battle group and defend them against powerful short range attackers. They were originally developed in 1885 by Fernando Villaamil for the Spanish NavySmith, Charles Edgar: ''A short history of naval and marine engineering.'' Babcock & Wilcox, ltd. at the University Press, 1937, page 263 as a defense against torpedo boats, and by the time of the Russo-Japanese War in 1904, these "torpedo boat destroyers" (TBDs) were "large, swift, and powerfully armed torpedo boats designed to destroy other torpedo boats". Although the term "destroyer" had been used interchangeably with "TBD" and "torpedo boat destroyer" by navies since 1892, the term "torpedo boat destroyer" had been generally shortened to simply "destroyer" by nearly all navies by the First World War. Before World War II, destroyers were light vessels with little endurance for unattended o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Keel
The keel is the bottom-most longitudinal structural element on a vessel. On some sailboats, it may have a hydrodynamic and counterbalancing purpose, as well. As the laying down of the keel is the initial step in the construction of a ship, in British and American shipbuilding traditions the construction is dated from this event. Etymology The word "keel" comes from Old English , Old Norse , = "ship" or "keel". It has the distinction of being regarded by some scholars as the first word in the English language recorded in writing, having been recorded by Gildas in his 6th century Latin work ''De Excidio et Conquestu Britanniae'', under the spelling ''cyulae'' (he was referring to the three ships that the Saxons first arrived in). is the Latin word for "keel" and is the origin of the term careen (to clean a keel and the hull in general, often by rolling the ship on its side). An example of this use is Careening Cove, a suburb of Sydney, Australia, where careening was carried out ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mahogany
Mahogany is a straight-grained, reddish-brown timber of three tropical hardwood species of the genus ''Swietenia'', indigenous to the AmericasBridgewater, Samuel (2012). ''A Natural History of Belize: Inside the Maya Forest''. Austin: University of Texas Press. pp. 164–165. . and part of the pantropical chinaberry family, Meliaceae. Mahogany is used commercially for a wide variety of goods, due to its coloring and durable nature. It is naturally found within the Americas, but has also been imported to plantations across Asia and Oceania. The mahogany trade may have begun as early as the 16th century and flourished in the 17th and 18th centuries. In certain countries, mahogany is considered an invasive species. Description The three species are: *Honduran or big-leaf mahogany ('' Swietenia macrophylla''), with a range from Mexico to southern Amazonia in Brazil, the most widespread species of mahogany and the only genuine mahogany species commercially grown today. Illegal l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strait Of Belle Isle
The Strait of Belle Isle (; french: Détroit de Belle Isle ) is a waterway in eastern Canada that separates the Labrador Peninsula from the island of Newfoundland, in the province of Newfoundland and Labrador. Location The strait is the northern outlet for the Gulf of Saint Lawrence, the other two being the Cabot Strait and Strait of Canso. As such, it is also considered part of the Great Lakes-St. Lawrence Seaway system. The strait is approximately long and ranges from a maximum width of to just at its narrowest, the average width being . Origins of name The name is derived from the island of Belle Isle ( French for "Beautiful Island"), which is at the extreme eastern end of the strait and roughly equidistant from Table Head, Labrador, and Cape Bauld, Newfoundland. History Both the island of Newfoundland as well as the Labrador region which surrounds the Strait of Belle Isle have been inhabited by Indigenous Peoples for millennia. The surrounding land environment has his ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Red Bay, Newfoundland And Labrador
Red Bay is a fishing village in Labrador, notable as one of the most precious underwater archaeological sites in the Americas. Between 1530 and the early 17th century, it was a major Basque whaling area. Several whaling ships, both large galleons and small '' chalupas'', sank there, and their discovery led to the designation of Red Bay in 2013 as a UNESCO World Heritage Site. Geography Red Bay is a natural harbour residing in the bay that gives it its name, both names in reference to the red granite cliffs of the region. Because of the sheltered harbour it was used during World War II as a mooring site for naval vessels. In the bay are Penney Island and Saddle Island, which were used by the Basques for their whaling operations. The location of the sunken vessel ''San Juan'' is near Saddle Island. History Between 1550 and the early 17th century, Red Bay, known as ''Balea Baya'' (Whale Bay), was a centre for Basque whaling operations. Sailors from southern France and northe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Botwood
Botwood is a town in north-central Newfoundland, Newfoundland and Labrador, Canada in Census Division 6. It is located on the west shore of the Bay of Exploits on a natural deep water harbour used by cargo ships and seaplanes throughout the town's history. Botwood was the North American terminus for the first transatlantic commercial flights. History In 1908, construction began on the Botwood Railway; the railway ran between Bishop's Falls and Botwood. It was a joint effort between the A.N.D. Company and the A. E. Reed Company of Bishop's Falls. It was to be the transportation link for the export of pulp and paper from the newly built mill at Grand Falls, NL. The railway became operational by the fall of 1909, and the first shipment of paper from the new mill was sent in February 1910. The A.N.D. Company took control of the railway operation in 1910, just a year after the line was completed. The first aircraft facility to be established in Botwood was by Newfoundland born Capta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dominion Of Newfoundland
Newfoundland was a British dominion in eastern North America, today the modern Canadian province of Newfoundland and Labrador. It was established on 26 September 1907, and confirmed by the Balfour Declaration of 1926 and the Statute of Westminster of 1931. It included the island of Newfoundland, and Labrador on the continental mainland. Newfoundland was one of the original dominions within the meaning of the Balfour Declaration and accordingly enjoyed a constitutional status equivalent to the other dominions of the time. In 1934, Newfoundland became the only dominion to give up its self-governing status, which ended 79 years of self-government. The abolition of self-government came about because of a crisis in Newfoundland's public finances in 1932. Newfoundland had accumulated a significant amount of debt by building a railway across the island, which was completed in the 1890s, and by raising its own regiment during World War I. In November 1932, the government warned th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minesweeper
A minesweeper is a small warship designed to remove or detonate naval mines. Using various mechanisms intended to counter the threat posed by naval mines, minesweepers keep waterways clear for safe shipping. History The earliest known usage of the naval mine dates to the Ming dynasty.Needham, Volume 5, Part 7, 203–205. Dedicated minesweepers, however, only appeared many centuries later during the Crimean War, where they were deployed by the British. The Crimean War minesweepers were rowboats trailing Grappling hook, grapnels to snag mines. Minesweeping technology picked up in the Russo-Japanese War, using aging torpedo boats as minesweepers. In Britain, naval leaders recognized before the outbreak of World War I that the development of sea mines was a threat to the nation's shipping and began efforts to counter the threat. Sir Arthur Wilson noted the real threat of the time was blockade aided by mines and not invasion. The function of the fishing fleet's trawlers with their ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corvette
A corvette is a small warship. It is traditionally the smallest class of vessel considered to be a proper (or " rated") warship. The warship class above the corvette is that of the frigate, while the class below was historically that of the sloop-of-war. The modern roles that a corvette fulfills include coastal patrol craft, missile boat and fast attack craft. These corvettes are typically between 500 tons and 2,000 .although recent designs may approach 3,000 tons, having size and capabilities that overlap with smaller frigates. However unlike contemporary frigates, a modern corvette does not have sufficient endurance and seaworthiness for long voyages. The word "corvette" is first found in Middle French, a diminutive of the Dutch word ''corf'', meaning a "basket", from the Latin ''corbis''. The rank "corvette captain", equivalent in many navies to "lieutenant commander", derives from the name of this type of ship. The rank is the most junior of three "captain" ranks in sev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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