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Topic: Dial-a-yield

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Dial-a-yield - Wikipedia, the free encyclopedia Dial-a-yield can also be achieved with fusion neutron boosting. In some bombs, the yield is adjusted on the ground, with the addition or removal of tampers that control the rate of fission or fusion. For example, the Tsar Bomba 's yield was halved when its uranium fusion tamper was replaced with a lead one. en.wikipedia.org /wiki/Dial-a-yield

B83 The maximum yield of the B83 is 1.2 megatons. It is equipped with a 46 ft. Kevlar - Nylon ribbon parachute capible of slowing the weapon from Mach 0.93 to 44 Mph in a very short time. It was designed with the B-1 Lancer in mind ergo the low altitude/high velocity delivery capibility. www.duosearch.com /encyclopedia/b/b8/b83.shtml

Nuclear weapon - Wikipedia, the free encyclopedia In practice, nuclear weapon yields can be highly variable, from the sub-kiloton power of the man-portable Davy Crockett warheads developed by the United States, to the impractical 54 megaton Tsar Bomba created by the Soviet Union as a display of political power. By modern standards, the bombs that destroyed Hiroshima and Nagasaki in 1945 may perhaps be considered tactical weapons (with yields between 13 and 22 kilotons (54 to 92 TJ)), although modern tactical weapons are considerably lighter and more compact. The first fission weapons had yields measurable in the tens of kilotons, while the largest practical hydrogen bombs had yields around 10 megatons. en.wikipedia.org /wiki/nuclear_weapons

NWNM An Overview of Current and Planned U.S. Nuclear Weapons Yield of the W-76 is believed to be around 100 kt. Yield is 300 kt.; can be increased up to 475 kt. Yield is believed to be between 1 - 2 megatons - - a huge weapon!; www.nukewatch.org /facts/nwd/weap.html

Broadmining: Dial Nowadays the dial is a key pad, generally with 12 keys numbered 1-9,*,0,#, that performs an equivalent signalling function to that of a rotating disk dial. A dial is a generally a flat disk, often with numbers or similar markings on it, used for displaying the setting or output of a timepiece, radio or There were numerous competing inventions, and 26 patents of dials, push-buttons and similar mechanisms for signalling which telephone subscriber was wanted by a caller were issued prior to 1891. www.lowide.com /Dial&t=

Special Atomic Demolition Munition - Wikipedia, the free encyclopedia It was fired by a mechanical timer and had a variable yield (" dial-a-yield ") between 10 and 250 tons. en.wikipedia.org /wiki/SADM

Pentagon wants underground hydrogen bomb Both the B83 and the B61 have a feature known as "dial-a-yield'' in which the bombs' explosive power, or yield, can be adjusted. Despite their potential for low yield, modification of large bombs like the B83 and the B61 would apparently not be affected by a 1994 law prohibiting work on nuclear earth penetrators with yields less than 5,000 tons. The maximum yield is more than a megaton, the equivalent of a million tons of TNT, a mountain of conventional explosives. www.apc.org.nz /pma/cra0325.htm

health.ca - Maximum Sustained Yield Sustained yield plans are one of the mechanisms that timberland owners can use to meet the State's requirement for maintaining maximum sustained... Sustained Yield addresses the fundamental problem with professional forestry, the redesign of forests for timber sustainability. is awakening to, and evolving past, sustained yield, the... health.ca /Maximum-Sustained-Yield/reference/search

Nuclear Weapons - basic technology concepts [UNC] H is a gas at room temperature, it can be easily 'bled' into the central cavity from a storage bottle prior to an explosion, and impact the final yield of the device. Modern fission devices use a technique called 'boosting' (referred to in the next section), to control and enhance the yield of the device. H may be bled from a separate tank into the core of the primary, as shown in the hypothetical diagram on the left of a modern thermonuclear weapon. www.yeates.org /home/nuclear_weapons.htm

Projects Review - Issue 6 At the lower yields, weapons designers thought that this bomb could be modified to be a bunker buster that would minimize fallout. The extant nuclear weapons in the U.S. arsenal typically have large explosive yields in the range of 100 to 475 kilotons (kT). In contrast to the conventional weapons, the second option-modification of existing nuclear weapons-is politically the most controversial, but it is most likely to accomplish the military mission of destroying very deeply buried targets. npc.sarov.ru /english/digest/62002/appendix2.html

The B83 Bomb High yield strategic bomb with variable yield options ("dial-a-yield" or DAY), and flexible fuzing and delivery options. Yield was 20-150 Kt, depth of burial was 2099 ft. It is the second highest yield weapon now possessed by the U.S. and has options for variable yields. nuclearweaponarchive.org /Usa/Weapons/B83.html

Definition of Dial-a-yield It allows the pilot to specify the yield (explosive power) of a given bomb, allowing a single design of bomb to be used in many different situations. An example of this is the Tsar Bomba which had its uranium fusion tamper replaced with a lead one, effectivly cutting the yield in half. Adjusting yield can also take place on the ground with the addition or subtraction of devices known as tampers which control the rate of fission or fussion. www.wordiq.com /definition/Dial-a-yield

INSTRUMENTS - Online Information article about INSTRUMENTS This yields a very much smaller field of view, but it is very valuable for viewing feeble telescopic objects and very delicate planetary or lunar details. and slow motion in the same, a finder, micro-scopes for reading the hour and declination circles, an illuminated dial showing sidereal time and driven by an electric current from the sidereal clock, and counter weights which can be re-moved when a spectroscope or other heavy appliance is added. For normal eyes the natural adaptation is not to focus for quite parallel rays, but on objects at a moderate distance, and practically, therefore, most persons do adjust the focus of a telescope, for most distinct and easy vision, so that the rays emerge from the eye-piece very slightly divergent. encyclopedia.jrank.org /I27_INV/INSTRUMENTS.html

CDI Nuclear Issues Area - Nuclear Weapons Database: Russia's Nuclear Delivery Systems Yield: Mod 3 - 550 kilotons, Mod 2 - 5 megatons The Starfish releases a 200 kiloton nuclear depth charge (the yield is disputed, see in the specifications), which detonates at the optimum depth, likely destroying submarines in a 5-10 kilometer radius. Yield: 200 kilotons (conventional payload is 500 kilograms) www.cdi.org /issues/nukef&f/database/rusnukes.html

The B61 The lowest yield option for the B61 (the same for all tactical mods) is 300 tons which probably represents the basic unboosted yield of the fission primary. The physics package of the B61 has been adapted to several yield other warheads - the W-80, W-81 (now retired and dismantled), W-84 (now retired and in the inactive stockpile), and the W-85 (which was retired, and then readapted to yield another B61 variant). A low-temperature test in the early 80s revealed a yield reduction of 25%, requiring some redesign. www.avhub.net /b61.htm

Print Article The first conventional weapon to change could be the common hand grenade, and it could come from a lab renowned for delivering compact, multi-kiloton nuclear explosives with dialable yields. Whether infantry soldiers would use dial-a-yield grenades in the heat of combat is another matter. Adjustable yields could save the lives of civilians and military personnel, as well as valuable infrastructure in cities, Maybaum said, where an increasing number of conflicts could be fought. www.insidebayarea.com /portlet/article/html/fragments/print_article.jsp?article=2520949

Senators Feinstein and Kennedy Seek to Retain the Prohibition on Research and Development of Low-Yield Nuclear Weapons In addition, the United States already has a usable nuclear bunker buster, the B61-11, which has a "dial-a-yield" feature, allowing its yield to range from less than a kiloton to several hundred kilotons. When configured to have a 10-kiloton yield and detonated 4 feet underground, the B61-11 can produce a shock wave sufficient to crush a bunker buried beneath 350 feet of layered rock. Based on technical analysis at the Nevada Test Site, a weapon with a 10-kiloton yield must be buried deeper than 850 feet to prevent spewing of radioactive debris. feinstein.senate.gov /03Releases/r-spratt.htm

CNS - Congressional Debate on Nuclear Weapons Policy - October 27, 2003 - Research Story of the Week Reportedly, unlike some versions of the B61, which have a dial-a-yield feature, offering sub-kiloton yields, the B61-11 reportedly has only a single yield, which is much greater than a kiloton.[3] The higher the explosive yield, the deeper the bomb has to be buried to contain the radioactive contamination. Higher yield weapons have a greater likelihood than lower yield weapons of destroying deeply buried and hardened targets. cns.miis.edu /pubs/week/031027.htm

Aristotle -- Ethics [Internet Encyclopedia of Philosophy] We all arrive on the scene already habituated, in the habit, that is, of yielding to impulses and desires, of instantly slackening the tension of pain or fear or unfulfilled desire in any way open to us, and all this has become automatic in us before thinking and choosing are available to us at all. The mean state here is not a point on a dial that we need to fiddle up and down; it is a clearing in the midst of pleasures and pains that lets us judge what seems most truly pleasant and painful. It is possible for someone with full responsibility and the free use of intellect to choose always to yield to bodily pleasure or to greed. www.iep.utm.edu /a/aris-eth.htm

Security: Sample Comments on MPF In fact, military analysis of tactical nuclear weapons in the past demonstrates the exact opposite: it makes little sense to use them, while they can cause scores of thousands of casualties even at the smallest yields. Even if the decision is made to develop new nuclear weapons, the TA-55 upgrade options provide more than adequate numbers of pits by the time individual weapons systems become unreliable while maintaining the stockpile and reserve weapons. Furthermore, neither the Department of Energy, Department of Defense, nor the Administration have completed the analysis for mini-nukes or Robust Nuclear Earth Penetrators. www.psr.org /home.cfm?id=sample_comments_on_mpf

t a c i t u s Comments Neutering Some sources suggest that the B61-11 has a "dial-a-yield" feature, allowing its yield to range from less than a kiloton to several hundred kilotons. When configured to have a 10-kiloton yield and detonated 4 feet underground, the B61-11 can produce a shock wave sufficient to crush a bunker buried beneath 100 meters of layered rock. Eddie, the WH seeks additional modifications, lower yield (sub-kiloton is my understanding) and better earth-penetrating dynamics, net net less collateral damage. www.tacitus.org /comments/2004/9/30/212712/478/78

Markey talking points on robust nuclear earth penetrator and test site readiness This modified weapon, known as the B61-11, has a "dial-a-yield" feature allowing its yield to range from less than 1 kiloton to hundreds of kilotons. We know from underground nuclear test explosions that a weapon with a yield of 10 kilotons has to be buried deeper than 850 feet to prevent spewing of radioactive debris aboveground. Under the same conditions, a 100-kiloton weapon is effective to a depth greater than 750 ft. Since we already have a weapon that can do the job when detonated only a few feet below the surface, we do not need a new weapon to penetrate greater depths. www.ananuclear.org /talkingpoints.html

CNS - July 14-18, 2003 - Congressional Record Weekly Update In fact, some of our nuclear weapons are ``dial-a-yield'', meaning we can select the yield of the weapon--and some of them can be ``dialed'' down to less than 1 kiloton, which, by the scale of nuclear weapons, is pretty mini. Chairman, I thank the gentleman for yielding me this time and for all his work and cooperation, and I rise to speak on some of the positive elements of this bill. I offer this motion simply to ask the House to stand by a bipartisan compromise that we struck last May in marking up the defense authorization bill, the bill we are now sending formally to conference which deals with the development of low-yield nuclear weapons. cns.miis.edu /cr/03_07_21.htm

Anticipatory Retaliation: Bunker-Busters and Defense This had a couple of interesting implications in weapons design, one of which was the development of dial-a-yield warheads. By the mid-sixties, things like the Special Atomic Demolition Munition, with a yield of 0.01, or 0.02-1 kilotons deployed. Why this is significant is that it is a pretty dramatic indication that planners decided that there was really such a thing as too big an explosion, even in a full-scale global thermonuclear war. anticipatoryretaliation.mu.nu /archives/048547.php

The Burrowing Nuke (Saddam Has No Place To Hide) With a yield that size, the shock wave will pulverize the bunker and the occupants quite admirably. The B-53 (Mk-53) high yield strategic thermonuclear bomb. But the nine megaton yield left a much nastier crater. www.freerepublic.com /focus/news/813554/posts

Science Fair Projects - B83 The B83 replaced several earlier weapons, including the B28, B43, and ultra-high yield B53. It was the first U.S. nuclear weapon designed from the start to avoid accidental detonation, with the use of 'insensitive' explosive in the trigger lens system. The first underground test detonation took place 15 December 1984. www.all-science-fair-projects.com /science_fair_projects_encyclopedia/B83

WorldNetDaily: Nuclear cave-killers The lowest yield that could be dialed — essentially by disabling those parts of the B-61 that could enable it to produce several hundred kilotons of yield — was less than five kilotons. The Pentagon got around this prohibition by modifying an existing nuke, the Air Force's B-61 "dial-a-yield" gravity bomb. Clinton got Congress — then controlled by the Democrats — to enact a total prohibition against "research and development which could lead to the production by the United States of a low-yield nuclear weapon... www.worldnetdaily.com /news/printer-friendly.asp?ARTICLE_ID=25108

Daily Pundit Archives 'Sub 100-kT' is low yield as typical dial-a-yield warheads have two settings, one over the 100 kT mark and the other much lower (5 kT or so). The B61 tac nuke has four settings, with the B61-4 capable of producing yields of 0.3, 1.5, 10 and 45 kT. AFAIK, the highest-yield warhead the US ever had was the B53 with a nominal 9 MT yield. www.dailypundit.com /archives/009741.php

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