A fleet carrier is an aircraft carrier designed to operate with the main fleet of a nation's navy. The term was developed during World War II, to distinguish it from the escort carrier and other less capable types. In addition to many medium-sized carriers, supercarriers, as well as some light carriers, are also classed as fleet carriers.
Aircraft carriers were designed in the years between World War I and World War II. Flight decks were installed on several different types of ships to explore the possibilities of operating naval aircraft without the performance limitations of flotation devices required for seaplanes and flying boats. The most successful of these early aircraft carriers were built from battlecruisers. Battlecruisers typically had a speed of about , which was several knots faster than the speed of contemporary battleships. Additional speed was not necessary for maintaining station with the battle fleet, but enabled the carrier to catch up with the battle fleet after temporarily leaving formation to turn into the wind for launch or recovery of aircraft. The speed of the carrier during launch effectively decreased the takeoff distance for embarked aircraft, so faster carriers could operate heavier aircraft with greater range and superior combat capability. As such naval aircraft became operational, no nation could risk fielding less capable aircraft; so the speed of later purpose-designed aircraft carriers was set by the speed of the converted battle cruisers. The Washington Naval Treaty of 1922 limited the displacement of purpose-designed aircraft carriers to 23,000 tons.
The idea of a modern fleet carrier was developed in 1931 by Admirals J.J. Clark and Harry E. Yarnell of the United States Navy. Fleet carriers, instead of operating as scouts for the fleet, would operate in unison with the fleet, to ward off air attacks and to strike opposing forces from the air. Cruisers and destroyers would protect fleet carriers. The fleet carriers would then displace battleships as the preeminent assets of the surface fleet.
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Introduces the basic concepts of metabolism, enzymes, energy production, and ATP synthesis, exploring the fundamental principles of biochemical reactions.
Ce cours présente les principes fondamentaux à l'œuvre dans les organismes vivants. Autant que possible, l'accent est mis sur les contributions de l'Informatique aux progrès des Sciences de la Vie.
The students will learn about the basic principles of wireless communication systems, including transmission and modulation schemes as well as the basic components and algorithms of a wireless receive
A torpedo bomber is a military aircraft designed primarily to attack ships with aerial torpedoes. Torpedo bombers came into existence just before the First World War almost as soon as aircraft were built that were capable of carrying the weight of a torpedo, and remained an important aircraft type until they were rendered obsolete by anti-ship missiles. They were an important element in many famous Second World War battles, notably the British attack at Taranto, the sinking of the German battleship Bismarck, and the Japanese attack on Pearl Harbor.
The Battle of Leyte Gulf (Labanan sa golpo ng Leyte; Reite oki Kaisen) was the largest naval battle of World War II and by some criteria the largest naval battle in history, with over 200,000 naval personnel involved. It was fought in waters near the Philippine islands of Leyte, Samar, and Luzon from 23 to 26 October 1944 between combined American and Australian forces and the Imperial Japanese Navy (IJN), as part of the invasion of Leyte, which aimed to isolate Japan from the colonies that it had occupied in Southeast Asia, a vital source of industrial and oil supplies.
The naval Battle of the Eastern Solomons (also known as the Battle of the Stewart Islands and in Japanese sources as the Second Battle of the Solomon Sea) took place on 24–25 August 1942 and was the third carrier battle of the Pacific campaign of World War II and the second major engagement fought between the United States Navy and the Imperial Japanese Navy (IJN) during the Guadalcanal campaign. As at the Battle of the Coral Sea and the Battle of Midway, the ships of the two adversaries were never within sight of each other.
Cells are promising as carriers that can enhance the delivery of nanomedicines. Cells that carry nanomedicinal cargo, either immobilized on the cell surface or internalized, can allow for highly specific delivery and can enable the transport of nanomedicin ...
Heterojunction carrier selective contacts for solar cells have gained great attention because of the ability of these contacts to efficiently collect majority carriers while hindering the recombination of minority carriers, thus resulting in the highest re ...
PERGAMON-ELSEVIER SCIENCE LTD2022
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We investigate lateral charge carrier transport in crystalline silicon solar cells. Under typical operation illumination of high-efficiency solar cells, a significant population of electrons and holes exist in the silicon wafer, leading to a non-negligible ...