Difference between revisions of "Stealth"
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==Origin== | ==Origin== | ||
[https://nordan.daynal.org/wiki/index.php?title=English#ca._1100-1500_.09THE_MIDDLE_ENGLISH_PERIOD Middle English] ''stelthe''; akin to [https://nordan.daynal.org/wiki/index.php?title=English#ca._600-1100.09THE_OLD_ENGLISH.2C_OR_ANGLO-SAXON_PERIOD Old English] ''stelan'' to steal | [https://nordan.daynal.org/wiki/index.php?title=English#ca._1100-1500_.09THE_MIDDLE_ENGLISH_PERIOD Middle English] ''stelthe''; akin to [https://nordan.daynal.org/wiki/index.php?title=English#ca._600-1100.09THE_OLD_ENGLISH.2C_OR_ANGLO-SAXON_PERIOD Old English] ''stelan'' to steal | ||
| − | *[ | + | *[https://en.wikipedia.org/wiki/13th_century 13th Century] |
==Definitions== | ==Definitions== | ||
*1a archaic : [[theft]] | *1a archaic : [[theft]] | ||
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*4: an aircraft-design characteristic consisting of oblique angular construction and avoidance of vertical surfaces that is intended to produce a very weak radar return | *4: an aircraft-design characteristic consisting of oblique angular construction and avoidance of vertical surfaces that is intended to produce a very weak radar return | ||
==Description== | ==Description== | ||
| − | The [[concept]] of stealth is to operate or hide without giving [[enemy]] forces any indications as to the [[presence]] of friendly forces. This concept was first [[explored]] through [[camouflage]] by blending into the background visual clutter. As the potency of detection and interception technologies ([[radar]], IRST, surface-to-air missiles etc.) have increased over time, so too has the extent to which the [[design]] and operation of military personnel and vehicles have been affected in [[response]]. Some military uniforms are treated with [[chemicals]] to reduce their [ | + | The [[concept]] of stealth is to operate or hide without giving [[enemy]] forces any indications as to the [[presence]] of friendly forces. This concept was first [[explored]] through [[camouflage]] by blending into the background visual clutter. As the potency of detection and interception technologies ([[radar]], IRST, surface-to-air missiles etc.) have increased over time, so too has the extent to which the [[design]] and operation of military personnel and vehicles have been affected in [[response]]. Some military uniforms are treated with [[chemicals]] to reduce their [https://en.wikipedia.org/wiki/Infrared infrared] signature. A [[modern]] "stealth" vehicle will generally have been designed from the outset to have reduced or controlled signature. Varying degrees of stealth can be [[achieved]]. The exact level and [[nature]] of stealth embodied in a particular [[design]] is determined by the [[prediction]] of likely threat capabilities. |
| − | Stealth technology also termed ''LO technology'' (low observable technology) is a sub-discipline of military tactics and passive [ | + | Stealth technology also termed ''LO technology'' (low observable technology) is a sub-discipline of military tactics and passive [https://en.wikipedia.org/wiki/Electronic_countermeasures electronic countermeasures], which cover a range of [[techniques]] used with personnel, aircraft, ships, submarines, and missiles, to make them less visible (ideally [[invisible]]) to [[radar]], [https://en.wikipedia.org/wiki/Infrared infrared], sonar and other detection methods. |
| − | Development in the United States occurred in 1958, where earlier attempts in preventing radar tracking of its [ | + | Development in the United States occurred in 1958, where earlier attempts in preventing radar tracking of its [https://en.wikipedia.org/wiki/Lockheed_U-2 U-2] [[spy]] planes during the [https://en.wikipedia.org/wiki/Cold_War Cold War] by the Soviet Union had been unsuccessful. Designers turned to develop a particular shape for planes that tended to reduce detection, by redirecting [[electromagnetic]] [[waves]] from radars. [https://en.wikipedia.org/wiki/Radar-absorbent_material Radar-absorbent material] was also tested and made to reduce or block [[radar]] [[signals]] that [[reflect]] off from the [[surface]] of planes. Such [[changes]] to shape and surface [[composition]] form stealth technology as currently used on the [https://en.wikipedia.org/wiki/Northrop_Grumman_B-2_Spirit Northrop Grumman B-2 Spirit "Stealth Bomber"]. [https://en.wikipedia.org/wiki/Stealth_technology] |
[[Category: General Reference]] | [[Category: General Reference]] | ||
Latest revision as of 02:37, 13 December 2020
Origin
Middle English stelthe; akin to Old English stelan to steal
Definitions
- 1a archaic : theft
- b obsolete : something stolen
- 2: the act or action of proceeding furtively, secretly, or imperceptibly <the state moves by stealth to gather information — Nat Hentoff>
- 3: the state of being furtive or unobtrusive
- 4: an aircraft-design characteristic consisting of oblique angular construction and avoidance of vertical surfaces that is intended to produce a very weak radar return
Description
The concept of stealth is to operate or hide without giving enemy forces any indications as to the presence of friendly forces. This concept was first explored through camouflage by blending into the background visual clutter. As the potency of detection and interception technologies (radar, IRST, surface-to-air missiles etc.) have increased over time, so too has the extent to which the design and operation of military personnel and vehicles have been affected in response. Some military uniforms are treated with chemicals to reduce their infrared signature. A modern "stealth" vehicle will generally have been designed from the outset to have reduced or controlled signature. Varying degrees of stealth can be achieved. The exact level and nature of stealth embodied in a particular design is determined by the prediction of likely threat capabilities.
Stealth technology also termed LO technology (low observable technology) is a sub-discipline of military tactics and passive electronic countermeasures, which cover a range of techniques used with personnel, aircraft, ships, submarines, and missiles, to make them less visible (ideally invisible) to radar, infrared, sonar and other detection methods.
Development in the United States occurred in 1958, where earlier attempts in preventing radar tracking of its U-2 spy planes during the Cold War by the Soviet Union had been unsuccessful. Designers turned to develop a particular shape for planes that tended to reduce detection, by redirecting electromagnetic waves from radars. Radar-absorbent material was also tested and made to reduce or block radar signals that reflect off from the surface of planes. Such changes to shape and surface composition form stealth technology as currently used on the Northrop Grumman B-2 Spirit "Stealth Bomber". [1]
