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HMCS Chedabucto (J168)
HMCS ''Chedabucto'' was a that served with the Royal Canadian Navy during the Second World War. She served primarily in the Battle of the Atlantic. During the Battle of the St. Lawrence in 1943, ''Chedabucto'' was sunk in a collision with a cable ship. Design and description A British design, the ''Bangor''-class minesweepers were smaller than the preceding s in British service, but larger than the in Canadian service.Chesneau, p. 64Macpherson and Barrie, p. 167 They came in two versions powered by different engines; those with a diesel engines and those with vertical triple-expansion steam engines. ''Chedabucto'' was of the latter design and was larger than her diesel-engined cousins. ''Chedabucto'' was long overall, had a beam of and a draught of . The minesweeper had a displacement of . She had a complement of 6 officers and 77 enlisted. ''Chedabucto'' had two vertical triple-expansion steam engines, each driving one shaft, using steam provided by two Admiralty three ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chedabucto Bay
Chedabucto Bay is a large bay on the eastern coast of mainland Nova Scotia between the Atlantic Ocean and the Strait of Canso next to Guysborough County. At the entrance to Chedabucto Bay is the community of Canso at the head is the community of Guysborough and on the other end is the town of Mulgrave. Geography Chedabucto Bay was formed by the drowning of part of an ancient river system and owes its origin and shape to position of the Chedabucto Fault, which runs across central Nova Scotia from the Bay of Fundy to the Canso peninsula. History Colonial Merchants in La Rochelle, France enjoyed a fishing monopoly in Acadia and formed the Company of Acadia which established a small fortification on Chedabucto Bay named Fort St. Louis. The principal ports were at Chedabucto, which accounted for fifty fishers in 1686. In 1690, Captain Cyprian Southack proceeded to Chedabucto to take Fort St. Louis at the present-day village of Guysborough which, unlike Port-Royal, put up a figh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Draft (hull)
The draft or draught of a ship's hull is the vertical distance between the waterline and the bottom of the hull (keel). The draught of the vessel is the maximum depth of any part of the vessel, including appendages such as rudders, propellers and drop keels if deployed. Draft determines the minimum depth of water a ship or boat can safely navigate. The related term air draft is the maximum height of any part of the vessel above the water. The more heavily a vessel is loaded, the deeper it sinks into the water, and the greater its draft. After construction, the shipyard creates a table showing how much water the vessel displaces based on its draft and the density of the water (salt or fresh). The draft can also be used to determine the weight of cargo on board by calculating the total displacement of water, accounting for the content of the ship's bunkers, and using Archimedes' principle. The closely related term "trim" is defined as the difference between the forward and aft ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scuttling
Scuttling is the deliberate sinking of a ship. Scuttling may be performed to dispose of an abandoned, old, or captured vessel; to prevent the vessel from becoming a navigation hazard; as an act of self destruct, self-destruction to prevent the ship from being captured by an enemy force (or, in the case of a vessel engaged in illegal activities, by the authorities); as a blockship to restrict navigation through a Channel (geography), channel or within a harbor; to provide an artificial reef for divers and marine life; or to alter the flow of rivers. Notable historical examples Skuldelev ships (around 1070) The Skuldelev ships, five Viking ships, were sunk to prevent attacks from the sea on the Danish city of Roskilde. The scuttling blocked a major waterway, redirecting ships to a smaller one that required considerable local knowledge. Cog near Kampen (early 15th century) In 2012, a Cog (ship), cog preserved from the keel up to the decks in the silt was discovered alongside ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
U-boat
U-boats were naval submarines operated by Germany, particularly in the First and Second World Wars. Although at times they were efficient fleet weapons against enemy naval warships, they were most effectively used in an economic warfare role (commerce raiding) and enforcing a naval blockade against enemy shipping. The primary targets of the U-boat campaigns in both wars were the merchant convoys bringing supplies from Canada and other parts of the British Empire, and from the United States, to the United Kingdom and (during the Second World War) to the Soviet Union and the Allied territories in the Mediterranean. German submarines also destroyed Brazilian merchant ships during World War II, causing Brazil to declare war on both Germany and Italy on 22 August 1942. The term is an anglicised version of the German word ''U-Boot'' , a shortening of ''Unterseeboot'' ('under-sea-boat'), though the German term refers to any submarine. Austro-Hungarian Navy submarines were also kno ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sable Island
Sable Island (french: île de Sable, literally "island of sand") is a small Canadian island situated southeast of Halifax, Nova Scotia, and about southeast of the closest point of mainland Nova Scotia in the North Atlantic Ocean. The island is staffed year round by three federal government staff, rising during summer months when research projects and tourism increase. Notable for its role in early Canadian history and the Sable Island horse, the island is protected and managed by Parks Canada, which must grant permission prior to any visit. Sable Island is part of District 7 of the Halifax Regional Municipality in Nova Scotia. The island is also a protected National Park Reserve and an Important Bird Area. History Early history The expedition of Portuguese explorer João Álvares Fagundes explored this region in 1520–1521 and they were among the first Europeans to encounter the island. It is likely that he named the island "Fagunda" after himself. An island called ''Fag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Halifax, Nova Scotia
Halifax is the capital and largest municipality of the Canadian province of Nova Scotia, and the largest municipality in Atlantic Canada. As of the 2021 Census, the municipal population was 439,819, with 348,634 people in its urban area. The regional municipality consists of four former municipalities that were amalgamated in 1996: Halifax, Dartmouth, Bedford, and Halifax County. Halifax is a major economic centre in Atlantic Canada, with a large concentration of government services and private sector companies. Major employers and economic generators include the Department of National Defence, Dalhousie University, Nova Scotia Health Authority, Saint Mary's University, the Halifax Shipyard, various levels of government, and the Port of Halifax. Agriculture, fishing, mining, forestry, and natural gas extraction are major resource industries found in the rural areas of the municipality. History Halifax is located within ''Miꞌkmaꞌki'' the traditional ancestral lands ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CFB Esquimalt
Canadian Forces Base Esquimalt (CFB Esquimalt) is Canada's Pacific Coast naval base and home port to Maritime Forces Pacific and Joint Task Force Pacific Headquarters. , 4,411 military personnel and 2,762 civilians work at CFB Esquimalt. Geography The base occupies approximately at the southern tip of Vancouver Island on the Strait of Juan de Fuca, in the municipality of Esquimalt, adjacent to the western limit of the provincial capital, Victoria, British Columbia, Victoria. Facilities CFB Esquimalt comprises facilities that include ''Naden'' (formerly HMCS ''Naden''), Her Majesty's Canadian (HMC) Dockyard Esquimalt, Fleet Maintenance Facility – Cape Breton (FMF CB), a Fire Fighting and Damage Control School, the Naval Officer Training Centre (NOTC) Venture, and extensive housing including 716 personnel PMQ (military housing), married quarters located at nine sites such as Belmont Park, WorkPoint, and Hatley Park, Greater Victoria, Royal Roads. The pre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Trials
A sea trial is the testing phase of a watercraft (including boats, ships, and submarines). It is also referred to as a "shakedown cruise" by many naval personnel. It is usually the last phase of construction and takes place on open water, and it can last from a few hours to many days. Sea trials are conducted to measure a vessel's performance and general seaworthiness. Testing of a vessel's speed, maneuverability, equipment and safety features are usually conducted. Usually in attendance are technical representatives from the builder (and from builders of major systems), governing and certification officials, and representatives of the owners. Successful sea trials subsequently lead to a vessel's certification for commissioning and acceptance by its owner. Although sea trials are commonly thought to be conducted only on new-built vessels (referred by shipbuilders as 'builders trials'), they are regularly conducted on commissioned vessels as well. In new vessels, they are used t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ship Commissioning
Ship commissioning is the act or ceremony of placing a ship in active service and may be regarded as a particular application of the general concepts and practices of project commissioning. The term is most commonly applied to placing a warship in active duty with its country's military forces. The ceremonies involved are often rooted in centuries-old naval tradition. Ship naming and launching endow a ship hull with her identity, but many milestones remain before she is completed and considered ready to be designated a commissioned ship. The engineering plant, weapon and electronic systems, galley, and other equipment required to transform the new hull into an operating and habitable warship are installed and tested. The prospective commanding officer, ship's officers, the petty officers, and seamen who will form the crew report for training and familiarization with their new ship. Before commissioning, the new ship undergoes sea trials to identify any deficiencies needing corre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ship Naming And Launching
Ceremonial ship launching involves the performance of ceremonies associated with the process of transferring a vessel to the water. It is a nautical tradition in many cultures, dating back thousands of years, to accompany the physical process with ceremonies which have been observed as public celebration and a solemn blessing, usually but not always, in association with the launch itself. Ship launching imposes stresses on the ship not met during normal operation and, in addition to the size and weight of the vessel, represents a considerable engineering challenge as well as a public spectacle. The process also involves many traditions intended to invite good luck, such as christening by breaking a sacrificial bottle of champagne over the bow as the ship is named aloud and launched. Methods There are three principal methods of conveying a new ship from building site to water, only two of which are called "launching". The oldest, most familiar, and most widely used is th ... [...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] |
Quick-firing Gun
A quick-firing or rapid-firing gun is an artillery piece, typically a gun or howitzer, which has several characteristics which taken together mean the weapon can fire at a fast rate. Quick-firing was introduced worldwide in the 1880s and 1890s and had a marked impact on war both on land and at sea. Characteristics The characteristics of a quick-firing artillery piece are: *A breech-loading weapon with a breech mechanism that allows rapid reloading *Single-part cased ammunition, i.e. a cartridge containing both shell and propellant *Recoil buffers to limit recoil, so the barrel can quickly return to the same position after firing *The use of smokeless powder – nitrocellulose, nitroglycerine, or cordite – which create far less smoke than gunpowder, meaning that gun crews could still see their target These innovations, taken together, meant that the quick-firer could fire aimed shells much more rapidly than an older weapon. For instance, an Elswick Ordnance Company 4.7-inch gun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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