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Davit
Boat suspended from Welin Quadrant davits; the boat is mechanically 'swung out' Gravity multi-pivot on Scandinavia'' file:Bossoir a gravité.jpg, Gravity Roller Davit file:Davits-starbrd.png, Gravity multi-pivot davit holding rescue vessel on a North Sea ferry file:Freefall lifeboat.JPG, Freefall lifeboat on the ''Spring Aeolian'' file:Frapping line.jpg, Frapping line Labeled Tricing Gripe Steps to launch davit Roller Gravity Davit A davit () is any of various crane-like devices used on a ship for supporting, raising, and lowering equipment such as boats and anchors. Davit systems are most often used to lower an emergency lifeboat to the embarkation level to be boarded. The lifeboat davit has falls (now made of wire, historically of manila rope) that are used to lower the lifeboat into the water. Davits can also be used as man-overboard safety devices to retrieve personnel from the water. The maintaining and operation of davits is all under jurisdiction of the Intern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Davits 2 (PSF)
file:Davits 2 (PSF).png, Boat suspended from Welin Quadrant davits; the boat is mechanically 'swung out' file:Brosen lifeboats scandinavia.jpg, Gravity multi-pivot on cruiseferry ''MS Scandinavia (2003), Scandinavia'' file:Bossoir a gravité.jpg, Gravity Roller Davit file:Davits-starbrd.png, Gravity multi-pivot davit holding rescue vessel on a North Sea ferry file:Freefall lifeboat.JPG, Freefall lifeboat on the ''Spring Aeolian'' file:Frapping line.jpg, Frapping line file:Labeled Tricing.jpg, Labeled Tricing file:Gripe.jpg, Gripe file:Stepstodavitlaunch.png, Steps to launch davit file:Roller Gravity Davit.JPG, Roller Gravity Davit A davit () is any of various crane-like devices used on a ship for supporting, raising, and lowering equipment such as boats and anchors. Davit systems are most often used to lower an emergency Lifeboat (shipboard), lifeboat to the embarkation level to be boarded. The lifeboat davit has falls (now made of wire, historically of manila rope) that are u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RMS Titanic
RMS ''Titanic'' was a British ocean liner that Sinking of the Titanic, sank in the early hours of 15 April 1912 as a result of striking Iceberg that struck the Titanic, an iceberg on her maiden voyage from Southampton, England, to New York City, United States. Of the Sinking of the Titanic#Casualties and survivors, estimated 2,224 passengers and crew aboard, approximately 1,500 died (estimates vary), making the incident one of List of accidents and disasters by death toll#Peacetime maritime, the deadliest peacetime sinkings of a single ship. ''Titanic'', operated by White Star Line, carried some of the wealthiest people in the world, as well as hundreds of emigrants from the British Isles, Scandinavia, and elsewhere in Europe who were seeking a new life in the United States and Canada. The disaster drew public attention, spurred major changes in maritime safety regulations, and inspired a Titanic in popular culture, lasting legacy in popular culture. It was the second time Whit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RMS Lusitania
RMS ''Lusitania'' was a United Kingdom, British ocean liner launched by the Cunard Line in 1906. The Royal Mail Ship, the world's largest passenger ship until the completion of her sister three months later, in 1907 regained for Britain the Blue Riband appellation for the fastest Atlantic crossing, which had been held by German ships for a decade. During World War I, ''Lusitania'' was listed as Armed merchantmen, armed merchant cruiser (AMC) and carried both British munitions and US citizens on her 202nd trans-Atlantic crossing, when on 7 May 1915 at 14:10 off the Old Head of Kinsale, Ireland, the German submarine SM U-20 (Germany), ''U-20'' fired a single torpedo, triggering a second explosion and the sinking about 18 minutes later. Only 6 of several dozen lifeboats and rafts were successfully lowered, and of 1,960 persons on board, 767 survived and 1,193 perished.The official figures give 1,195 lost out of 1,959, excluding three stowaways who also were lost. The figures he ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lifeboat (shipboard)
A lifeboat or liferaft is a small, rigid or inflatable boat carried for emergency evacuation in the event of a disaster aboard a ship. Lifeboat drills are required by law on larger commercial ships. Rafts (raft, liferafts) are also used. In the military, a lifeboat may double as a whaleboat, dinghy, or Captain's gig, gig. The ship's tenders of cruise ships often double as lifeboats. Recreational sailors usually carry inflatable liferafts, though a few prefer small proactive lifeboats that are harder to sink and can be sailed to safety. Inflatable lifeboats may be equipped with auto-inflation (carbon dioxide or nitrogen) canisters or mechanical pumps. A quick release and pressure release mechanism is fitted on ships so that the canister or pump automatically inflates the lifeboat, and the lifeboat breaks free of the sinking vessel. Commercial aircraft are also required to carry auto-inflating liferafts in case of an emergency water landing; offshore oil platforms also have life ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coast Guard
A coast guard or coastguard is a Maritime Security Regimes, maritime security organization of a particular country. The term embraces wide range of responsibilities in different countries, from being a heavily armed military force with customs and security duties to being a volunteer organization tasked with search and rescue without law enforcement authority. In most countries, a typical coast guard's functions are distinct from those of the navy (a military service) and the transit police (a law enforcement agency), while in certain countries they have similarities to both. History United Kingdom The predecessor of Britain's modern HM Coastguard, His Majesty's Coastguard was established in 1809 as the Waterguard, a department of the HM Customs and Excise authority, which was originally devoted to the prevention of smuggling. At the time, due to high UK taxation on liquors such as brandy, as well as tobacco and other luxuries, smuggling of such cargos from places such as F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Watercraft Components
A watercraft or waterborne vessel is any vehicle designed for travel across or through water bodies, such as a boat, ship, hovercraft, submersible or submarine. Types Historically, watercraft have been divided into two main categories. *Rafts, which gain their buoyancy from the fastening together of components that are each buoyant in their own right. Generally, a raft is a "flow through" structure, whose users would have difficulty keeping dry as it passes through waves. Consequently, apart from short journeys (such as a river crossing), their use is confined to warmer regions (roughly 40° N to 40° S). Outside this area, use of rafts at sea is impracticable due to the risks of exposure to the crew. *Boats and ships, which float by having the submergeable part of their structure exclude water with a waterproof surface, so creating a space that contains air, as well as cargo, passengers, crew, etc. In total, this structure weighs less than the water that would occupy the sa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strength-to-weight Ratio
The specific strength is a material's (or muscle's) strength (force per unit area at failure) divided by its density. It is also known as the strength-to-weight ratio or strength/weight ratio or strength-to-mass ratio. In fiber or textile applications, tenacity is the usual measure of specific strength. The SI unit for specific strength is Pa⋅ m3/ kg, or N⋅m/kg, which is dimensionally equivalent to m2/s2, though the latter form is rarely used. Specific strength has the same units as specific energy, and is related to the maximum specific energy of rotation that an object can have without flying apart due to centrifugal force. Another way to describe specific strength is breaking length, also known as self support length: the maximum length of a vertical column of the material (assuming a fixed cross-section) that could suspend its own weight when supported only at the top. For this measurement, the definition of weight is the force of gravity at the Earth's surface (stand ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Navy
The Royal Navy (RN) is the naval warfare force of the United Kingdom. It is a component of His Majesty's Naval Service, and its officers hold their commissions from the King of the United Kingdom, King. Although warships were used by Kingdom of England, English and Kingdom of Scotland, Scottish kings from the early Middle Ages, medieval period, the first major maritime engagements were fought in the Hundred Years' War against Kingdom of France, France. The modern Royal Navy traces its origins to the English Navy of the early 16th century; the oldest of the British Armed Forces, UK's armed services, it is consequently known as the Senior Service. From the early 18th century until the World War II, Second World War, it was the world's most powerful navy. The Royal Navy played a key part in establishing and defending the British Empire, and four Imperial fortress colonies and a string of imperial bases and coaling stations secured the Royal Navy's ability to assert naval superior ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
