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Japanese Destroyer Sazanami (1899)
''Sazanami'' (漣, "Ripples") was an Ikazuchi-class destroyer of the Imperial Japanese Navy. She was one of the earliest and smallest Japanese destroyers. Only long, she could make on . Service history Completed on 28 August 1899, ''Sazanami'' arrived at Sasebo on 24 March 1900, where she was classified as a destroyer. During the Russo-Japanese War (1904–1905), ''Sazanami'' participated in the Battle of Port Arthur on 8–9 February 1904. During the predawn hours of 10 March 1904, a force consisting of ''Sazanami'', the protected cruiser , and the destroyers , , and intercepted the Russian destroyers and as they approached Port Arthur from the south-southeast during their return from a reconnaissance mission. As the Japanese moved to cut them off from Port Arthur, ''Reshitel‘nyi'' and ''Steregushchiy'' turned to starboard and made for the shelter of Russian minefields off Dalniy.Corbett, Vol. I, p. 149. With superior speed, the Japanese destroyers closed to a ran ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Empire Of Japan
The also known as the Japanese Empire or Imperial Japan, was a historical nation-state and great power that existed from the Meiji Restoration in 1868 until the enactment of the post-World War II 1947 constitution and subsequent formation of modern Japan. It encompassed the Japanese archipelago and several colonies, protectorates, mandates, and other territories. Under the slogans of and following the Boshin War and restoration of power to the Emperor from the Shogun, Japan underwent a period of industrialization and militarization, the Meiji Restoration, which is often regarded as the fastest modernisation of any country to date. All of these aspects contributed to Japan's emergence as a great power and the establishment of a colonial empire following the First Sino-Japanese War, the Boxer Rebellion, the Russo-Japanese War, and World War I. Economic and political turmoil in the 1920s, including the Great Depression, led to the rise of militarism, nationa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coal
Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams. Coal is mostly carbon with variable amounts of other elements, chiefly hydrogen, sulfur, oxygen, and nitrogen. Coal is formed when dead plant matter decays into peat and is converted into coal by the heat and pressure of deep burial over millions of years. Vast deposits of coal originate in former wetlands called coal forests that covered much of the Earth's tropical land areas during the late Carboniferous ( Pennsylvanian) and Permian times. Many significant coal deposits are younger than this and originate from the Mesozoic and Cenozoic eras. Coal is used primarily as a fuel. While coal has been known and used for thousands of years, its usage was limited until the Industrial Revolution. With the invention of the steam engine, coal consumption increased. In 2020, coal supplied about a quarter of the world's primary energy and over a third of its electricity. Some iron ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whaleboat
A whaleboat is a type of open boat that was used for catching whales, or a boat of similar design that retained the name when used for a different purpose. Some whaleboats were used from whaling ships. Other whaleboats would operate from the shore. Later whaleboats usually could operate under sail or oar - American whaling crews in particular obtained better results by making their first approach to a whale under sail, then quickly unstepping the mast and using oars thereafter. Most whaleboats have double-ended, clinker-built hulls of light construction. The hulls were narrow and with sharp ends to achieve the best possible speed for the length of waterline. Length was between 27 and 31 feet. Beam was just over a fifth of the length. Typically they were propelled by five oars when rowed, and stepped a single removable mast when under sail. A rudder was used when under sail and a steering oar when the boat was rowed. The latter provided the manoeuvrability needed when closing wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Executive Officer
An executive officer is a person who is principally responsible for leading all or part of an organization, although the exact nature of the role varies depending on the organization. In many militaries and police forces, an executive officer, or "XO", is the second-in-command, reporting to the commanding officer. The XO is typically responsible for the management of day-to-day activities, freeing the commander to concentrate on strategy and planning the unit's next move. Administrative law While there is no clear line between principal executive officers and inferior executive officers, principal officers are high-level officials in the executive branch of U.S. government such as department heads of independent agencies. In ''Humphrey's Executor v. United States'', 295 U.S. 602 (1935), the Court distinguished between executive officers and quasi-legislative or quasi-judicial officers by stating that the former serve at the pleasure of the president and may be removed at their di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gunnery Officer
The gunnery officer of a warship was the officer responsible for operation and maintenance of the ship's guns and for safe storage of the ship's ammunition inventory. Background The gunnery officer was usually the line officer next in rank to the executive officer. As shipboard guided missiles and torpedoes became more effective than naval artillery, guns were included within a weapons department replacing the older gunnery department. The weapons department is supervised by a weapons officer who may have a subordinate gunnery officer supervising the ship's guns. See also *Naval artillery Naval artillery is artillery mounted on a warship, originally used only for naval warfare and then subsequently used for naval gunfire support, shore bombardment and anti-aircraft roles. The term generally refers to tube-launched projectile-firi ... References {{naval-stub Military ranks ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mast (ship)
The mast of a sailing vessel is a tall spar, or arrangement of spars, erected more or less vertically on the centre-line of a ship or boat. Its purposes include carrying sails, spars, and derricks, and giving necessary height to a navigation light, look-out position, signal yard, control position, radio aerial or signal lamp. Large ships have several masts, with the size and configuration depending on the style of ship. Nearly all sailing masts are guyed. Until the mid-19th century, all vessels' masts were made of wood formed from a single or several pieces of timber which typically consisted of the trunk of a conifer tree. From the 16th century, vessels were often built of a size requiring masts taller and thicker than could be made from single tree trunks. On these larger vessels, to achieve the required height, the masts were built from up to four sections (also called masts). From lowest to highest, these were called: lower, top, topgallant, and royal masts. Giving the lo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Funnel (ship)
A funnel is the smokestack or chimney on a ship used to expel boiler steam and smoke or engine exhaust. They are also commonly referred to as stacks. Purpose The primary purpose of a ship's funnel(s) is to lift the exhaust gases clear of the deck, in order not to foul the ship's structure or decks, and to avoid impairing the ability of the crew to carry out their duties. In steam ships the funnels also served to help induce a convection draught through the boilers. Design Since the introduction of steam-power to ships in the 19th century, the funnel has been a distinctive feature of the silhouette of a vessel, and used for recognition purposes. Funnel area The required funnel cross-sectional area is determined by the volume of exhaust gases produced by the propulsion plant. Often this area is too great for a single funnel. Early steam vessels needed multiple funnels ( had 5 when launched), but as efficiency increased new machinery needed fewer funnels. Merchant ships ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hull (ship)
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] |
Fire Room
On a ship, the fire room, or FR or boiler room or stokehold, referred to the space, or spaces, of a vessel where water was brought to a boil. The steam was then transmitted to a separate engine room, often (but not always) located immediately aft, where it was utilized to power the vessel. To increase the safety and damage survivability of a vessel, the machinery necessary for operations may be segregated into various spaces, the fire room was one of these spaces, and was among the largest physical compartment of the machinery space. On some ships, the space comprised more than one fire room, such as forward and aft, or port or starboard fire rooms, or may be simply numbered. Each room was connected to a flue, exhausting into a stack ventilating smoke. By their nature, fire rooms were less complex than their allied engine room and were normally supervised by less senior personnel. On a large percentage of vessels, ships and boats, the fire room was located near the bottom, and at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Armored Cruiser
The armored cruiser was a type of warship of the late 19th and early 20th centuries. It was designed like other types of cruisers to operate as a long-range, independent warship, capable of defeating any ship apart from a battleship and fast enough to outrun any battleship it encountered. For many decades, naval technology had not advanced far enough for designers to produce a cruiser which combined an armored belt with the long range and high speed required to fulfill its mission. For this reason, beginning in the 1880s and 1890s, many navies preferred to build protected cruisers, which only relied on a light armored deck to protect the vital parts of the ship. However, by the late 1880s, the development of modern rapid-fire breech-loading cannon and high-explosive shells made the reintroduction of side armor a necessity. The invention of face-hardened armor in the mid-1890s offered effective protection with less weight than previously. Varying in size, the armored cruiser was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coastal Artillery
Coastal artillery is the branch of the armed forces concerned with operating anti-ship artillery or fixed gun batteries in coastal fortifications. From the Middle Ages until World War II, coastal artillery and naval artillery in the form of cannons were highly important to military affairs and generally represented the areas of highest technology and capital cost among materiel. The advent of 20th-century technologies, especially military aviation, naval aviation, jet aircraft, and guided missiles, reduced the primacy of cannons, battleships, and coastal artillery. In countries where coastal artillery has not been disbanded, these forces have acquired amphibious capabilities. In littoral warfare, mobile coastal artillery armed with surface-to-surface missiles can still be used to deny the use of sea lanes. It was long held as a rule of thumb that one shore-based gun equaled three naval guns of the same caliber, due to the steadiness of the coastal gun which allowed for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Engine Officer
An engineering officer or simply engineer, is a licensed mariner qualified and responsible for operating and maintaining the propulsion plants and support systems for a watercraft and its crew, passengers and cargo.Wise Geek''What is the Engine Department on a US Merchant Ship?''/ref> Engineering officers are usually educated and qualified as engineering technicians. Ship engineers are responsible for propulsion and other ship systems such as: electrical power generation plant; steam boilers; lighting; fuel oil; lubrication; water distillation and separation; air conditioning; refrigeration; sewage treatment and water systems on board the vessel. They require knowledge and hands-on experience with electric power, electronics, pneumatics, hydraulics, chemistry, steam generation, gas turbines and even nuclear technology on certain military and civilian vessels. Ranks and titles There are several types and ranks of engine officer that are employed in the engine department of a sh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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