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BX Convoys
The BX convoys were a World War II series of convoys across the Gulf of Maine from Boston to HalifaX. These convoys were escorted by the Western Local Escort Force (WLEF) of the Royal Canadian Navy to protect coastal shipping in transit between North American loading ports and trans-Atlantic convoy assembly points in Nova Scotia. Background Allied war materials had been transported from North America to the United Kingdom in HX convoys since 1939 and in slower SC convoys since 1940. These convoys were escorted by the Royal Navy and Royal Canadian Navy. The United States Navy provided a few escorts to HX and SC convoys beginning in September 1941. Declaration of war on 8 December 1941 removed United States neutrality assertions which had previously protected trade shipping in the Western Atlantic. Although the United States was slow to convoy coastal shipping, the Royal Canadian Navy established the WLEF in February 1942. Loaded ships eastbound WLEF escorted the first ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HMCS Regina K234 CT-252
HMCS may refer to: * Her Majesty's Courts Service * His Majesty's Canadian Ship * His Majesty's Colonial Ship, see His Majesty's Ship * Senior Chief Hospital Corpsman, a United States Navy rate * ''Hazardous Material Control System'' (see Workplace Hazardous Materials Information System The Workplace Hazardous Materials Information System (WHMIS; french: links=no, Système d'information sur les matières dangereuses utilisées au travail, SIMDUT) is Canada's national workplace hazard communication standard. The key elements of t ...) * HMC Investment Securities * Molybdenum cofactor sulfurtransferase, an enzyme {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Collier (ship Type)
A collier is a bulk cargo ship designed or used to carry coal. Early evidence of coal being transported by sea includes use of coal in London in 1306. In the fourteenth and fifteenth centuries, coal was shipped from the River Tyne to London and other destinations. Other ports also exported coal for instance the Old Quay in Whitehaven harbour was built in 1634 for the loading of coal. London became highly reliant on the delivery of coal by sea Samuel Pepys expressed concern in the winter of 166667 that war with the Dutch would prevent a fleet of 200 colliers getting through. In 1795, 4,395 cargoes of coal were delivered to London. By 1824, this number had risen to about 7,000; by 1839, it was over 9,000. The trade continued to the end of the twentieth century, with the last cargo of coal leaving the Port of Tyne in February, 2021. The earliest type of collier on which there is detailed information is the Whitby-built ''cat''. These were bluff-bowed, round-sterned, strongly-bui ... [...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] |
Liberty Ship
Liberty ships were a class of cargo ship built in the United States during World War II under the Emergency Shipbuilding Program. Though British in concept, the design was adopted by the United States for its simple, low-cost construction. Mass-produced on an unprecedented scale, the Liberty ship came to symbolize U.S. wartime industrial output. The class was developed to meet British orders for transports to replace ships that had been lost. Eighteen American shipyards built 2,710 Liberty ships between 1941 and 1945 (an average of three ships every two days), easily the largest number of ships ever produced to a single design. Their production mirrored (albeit on a much larger scale) the manufacture of "Hog Islander" and similar standardized ship types during World War I. The immensity of the effort, the number of ships built, the role of female workers in their construction, and the survival of some far longer than their original five-year design life combine to make them th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chebucto Head, Nova Scotia
Chebucto Head is a Canadian headland on Nova Scotia's Chebucto Peninsula located within the community of Duncan's Cove. Chebucto Head forms the most easterly point on the peninsula and is used to define the southwestern limit of Halifax Harbour; historically known to the Mi'kmaq Nation as "Jipugtug", (anglicised as "Chebucto") meaning "the biggest harbour", or simply, "the big harbour". A line drawn northeast from Chebucto Head to Pennant Point defines the southern geographic limit of the harbour. The actual legal limit of the harbour is located further inland to the north of this line. Lighthouse The first lighthouse at Chebucto Head was built in 1872 with a steam foghorn just below it. It was replaced by a second tower in 1928. This tower was demolished in 1940 and a new lighthouse and combined keeper's dwelling was built several hundred metres to the north to make way for a gun battery. In 1967 the light was moved from the house to the a new concrete tower which still st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Searsport, Maine
Searsport is an incorporated town and deep water seaport located at the confluence of the Penobscot River estuary and the Penobscot Bay immediately NW of Sears Island and Cape Jellison in Waldo County, Maine, United States. The population was 2,649 at the 2020 census. Searsport includes the village of North Searsport. The town is known as "the home of the famous sea captains" and the "Antique Capital of Maine". History Searsport was settled in the 1760s and incorporated on February 13, 1845 from portions of Prospect and Belfast. In 1747, when fire destroyed the Province House in Boston, General Samuel Waldo advocated, unsuccessfully, that the capital of Massachusetts be moved to Searsport, which was part of the Waldo Patent he purchased about 1720. It was named after David Sears of Boston after he agreed to grant a large sum of money towards the town's founding. Searsport is noted for its rich maritime history. During the 19th-century the port had 17 shipyards and built 200 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sydney, Nova Scotia
Sydney is a former city and urban community on the east coast of Cape Breton Island in Nova Scotia, Canada within the Cape Breton Regional Municipality. Sydney was founded in 1785 by the British, was incorporated as a city in 1904, and dissolved on 1 August 1995, when it was amalgamated into the regional municipality. Sydney served as the Cape Breton Island's colonial capital, until 1820, when the colony merged with Nova Scotia and the capital moved to Halifax. A rapid population expansion occurred just after the turn of the 20th century, when Sydney became home to one of North America's main steel mills. During both the First and Second World Wars, it was a major staging area for England-bound convoys. The post-war period witnessed a major decline in the number of people employed at the Dominion Steel and Coal Corporation steel mill, and the Nova Scotia and Canadian governments had to nationalize it in 1967 to save the region's biggest employer, forming the new crown corpora ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New York City
New York, often called New York City or NYC, is the List of United States cities by population, most populous city in the United States. With a 2020 population of 8,804,190 distributed over , New York City is also the List of United States cities by population density, most densely populated major city in the United States, and is more than twice as populous as second-place Los Angeles. New York City lies at the southern tip of New York (state), New York State, and constitutes the geographical and demographic center of both the Northeast megalopolis and the New York metropolitan area, the largest metropolitan area in the world by urban area, urban landmass. With over 20.1 million people in its metropolitan statistical area and 23.5 million in its combined statistical area as of 2020, New York is one of the world's most populous Megacity, megacities, and over 58 million people live within of the city. New York City is a global city, global Culture of New ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bay Of Fundy
The Bay of Fundy (french: Baie de Fundy) is a bay between the Canadian provinces of New Brunswick and Nova Scotia, with a small portion touching the U.S. state of Maine. It is an arm of the Gulf of Maine. Its extremely high tidal range is the highest in the world. The name is likely a corruption of the French word , meaning 'split'. Hydrology Tides The tidal range in the Bay of Fundy is about ; the average tidal range worldwide is only . Some tides are higher than others, depending on the position of the moon, the sun, and atmospheric conditions. Tides are semidiurnal, meaning they have two highs and two lows each day, with about six hours and 13 minutes between each high and low tide. Because of tidal resonance in the funnel-shaped bay, the tides that flow through the channel are very powerful. In one 12-hour tidal cycle, about 100 billion tons (110 billion short tons) of water flows in and out of the bay, which is twice as much as the combined total flow of all the rive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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