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	A4W reactor - Education - Information - Educational Resources - Encyclopedia - Music
		An A4W reactor is a type of nuclear reactor in use aboard the United States Navy's Nimitz-class supercarriers.
		The A4W reactor is the nuclear fission pressurized water reactor (PWR) design used in powering U. Navy aircraft carriers.
		The A4W reactor is the 4th nuclear fission reactor design for use in powering U. Navy aircraft carriers by a division of the Westinghouse Electric Corporation.
	www.music.us /education/A/A4W-reactor.htm (317 words)

	United States Naval reactor
		United States Naval reactors are given three-character designations consisting of a letter representing the ship type the reactor is designed for, a consecutive generation number, and a letter indicating the reactor's designer.
		After the Skate-class vessels, reactor development proceeded and in the USA a single series of standardised designs was built by both Westinghouse and General Electric, one reactor powering each vessel.
		A marine reactor was used to supply power (1.5 MWe) to a US Antarctic base for ten years to 1972, testing the feasibility of such air-portable units for remote locations.
	www.fastload.org /un/United_States_Naval_reactor.html (1043 words)

	A4W reactor Information
		An A4W reactor is a type of nuclear reactor in use aboard the United States Navy's Nimitz-class supercarriers, capable of producing 140,000 shaft horsepower (104MW) of energy, and with a normal fuel lifespan of 10 years and a core lifespan of 50 years.
		The A4W reactor is the nuclear fission pressurized water reactor (PWR) design used in powering U.S. Navy aircraft carriers.
		The A4W reactor is the fourth nuclear fission reactor design for use in powering U. Navy aircraft carriers by a division of the Westinghouse Electric Corporation.
	www.bookrags.com /wiki/A4W_reactor (169 words)

	United States Naval reactor
		United States Naval reactors are given three-character designations consisting of a letter representing the ship type the reactor is designed for, a consecutive generation number, and a letter indicating the reactor's designer.
		After the Skate-class vessels, reactor development proceeded and in the USA a single series of standardised designs was built by both Westinghouse and General Electric, one reactor powering each vessel.
		A marine reactor was used to supply power (1.5 MWe) to a US Antarctic base for ten years to 1972, testing the feasibility of such air-portable units for remote locations.
	www.ebroadcast.com.au /lookup/encyclopedia/un/United_States_Naval_reactor.html (1005 words)

	Nuclear reactor Encyclopedia (Site not responding. Last check: )
		A nuclear reactor is a device in which nuclear chain reactions are initiated, controlled, and sustained at a steady rate (as opposed to a nuclear bomb, in which the chain reaction occurs in a fraction of a second and is completely uncontrolled).
		Modern reactor designs and the relatively low enrichment of nuclear reactor fuel make it essentially impossible for a nuclear explosion to occur (the Chernobyl accident was neither a modern reactor design nor was it a nuclear explosion).
		The fraction of the reactor's fuel core replaced during refueling is typically one-fourth for a boiling-water reactor and one-third for a pressurized-water reactor.
	www.hallencyclopedia.com /topic/Nuclear_reactor.html (4238 words)

	New Page 2
		The keel was laid on August 25, 1986 and the ship was commissioned on July 4, 1992.
		Two nuclear reactors are used for propulsion (the ship is capable of steaming more than one million miles before refueling) turning 4 five bladed screws that weigh 66,220 pounds each.
		The GW can travel at speeds over thirty knots and is 1,094 feet long, 257 feet wide and has a height equal to a twenty-four story building (244 feet).
	www.weapons.dk /warships/usa.htm (934 words)

	A4W reactor - Free net encyclopedia (Site not responding. Last check: )
		An A4W reactor is a type of nuclear reactor in use aboard the United States Navy's Nimitz-class supercarriers, capable of producing 140,000 shaft horsepower (104MW) of energy, and with a normal fuel lifespan of 10 years and a core lifespan of 50 years.
		The reactor uses an internal neutron shield to maintain long term integrity.
		The A4W reactor is the fourth nuclear fission reactor design for use in powering U. Navy aircraft carriers by a division of the Westinghouse Electric Corporation.
	www.netipedia.com /index.php/A4W/A1G_reactor (222 words)

	[No title]
		The reactor was redesignated Submarine Reactor Small (SRS), then later became the S1C for the land-based prototype and S2C for the service reactor installed in the very small submarine USS Tullibee.
		This family of reactors was not regarded as being efficient since reactor shielding weight does not decline in proportion to reduced power output.
		Operational Reactor Development work was to include the design, development, test and evaluation of reactor refueling equipment and methods to support the initial SSBN-726 Ohio class refueling, the defueling of power units aboard CVN-65 USS Enterprise and the continued CVN-68 Nimitz class refueling.
	www.forecastinternational.com /archive/ws/ws0265.doc (5489 words)

	A2W reactor (Site not responding. Last check: )
		The A2W reactor is a naval reactor used by the United States Navy to provide electricity generation and propulsion on warships.
		This nuclear reactor was used in the world's first nuclear-powered aircraft carrier, the USS Enterprise (CVN-65).
		Once the reactor coolant water has given off its heat in the steam generators, it is returned, via large electric pumps (four per reactor), to the reactors to repeat the cycle.
	www.tocatch.info /en/A2W_reactor.htm (548 words)

	Aircraft Carriers
		The power, however, was a revolution, because it used 8 reactors for generating powers: the ship, the electricity and the flash water.
		However, the reactors used a lot of spaces as they are so large enough.
		As the reactors have saved a lot of space, the living conditions of the crew had been improved greatly.
	members.tripod.com /ia_works/main/ships/cv/cv.htm (1171 words)

	Nuclear Ohio Plant Power (Site not responding. Last check: )
		The ship types are "A" for aircraft carrier, USS Enterprise, powered by single reactors, and an aircraft carrier, USS Enterprise, powered by two of these early units.
		In the second volume, Alexander Sesonske draws onhis extensive experience in nuclear engineering to investigatestate-of-the-art approaches to reactor systems, including computeranalysis, assisting the reader in exploiting the potential ofinformation technology in the USA a single series of standardised designs was built by both Westinghouse and General Electric, one reactor powering each vessel.
		After the Skate-class vessels, reactor development proceeded and in the design and operation of nuclear power plant.
	re15.mmtfinancial.com /nuclearohioplantpower.html (1417 words)

	Vessel Design
		The ship types are "A" for aircraft carrier, USS Enterprise, powered by eight reactor units in 1960.
		A cruiser, USS Long Beach, followed in 1961 and was powered by eight reactor units in 1960.
		United States Naval reactor United States Naval reactors are given three-character designations consisting of a letter representing the ship Vessel Design.
	time.the-cba.com /Vessel-Design.html (1214 words)

	BUPERS INSTRUCTION 1540.41B (Site not responding. Last check: )
		on a ship’s reactor plant that is routinely critical (e.g., the reactor is not in a long-term shutdown condition such as during new construction or overhaul).
		ave served a minimum of 1 year as a division officer in the engineering or reactor department of a naval nuclear powered ship with no major collateral duties.
		reactor officer (reactor electrical assistant or main propulsion assistant on CVNs or reactor control assistant on CVN 65),
	buperscd.technology.navy.mil /bup_updt/508/INSTRUCTIONS/154041.htm (2042 words)

	A4W (Site not responding. Last check: )
		Fuel life spans depend on how much the ship is operatee, and how accurately one can predict reactor performance.
		Current cores for the NIMITZ Class aircraft carrier, LOS ANGELES Class SSN, and OHIO Class SSBN last on average about 20 years.
		Efforts to extend the lives of operating reactor plants are resulting in longer ship lifetimes; NIMITZ-Class carriers are now expected to last 50 years, and OHIO-Class submarines 40 years, versus their original design lifetimes of 30 years.
	www.fas.org /man/dod-101/sys/ship/eng/a4w.htm (78 words)

	CVN-68 Nimitz-class \| Russian Arms, Military Technology, Analysis of Russia's Military Forces
		Each mount has its own search and track radar, and a six-barrel, 20-millimeter Gatling gun capable of firing 3,000 rounds per minute The carrier's two nuclear reactors give her virtually unlimited range and endurance and a top speed in excess of 30 knots.
		In addition to the refueling of both of the ship’s reactors, there will be significant modernization work.
		On 12 February 1999 Newport News Shipbuilding was awarded a $169,790,050 modification to previously awarded contract for the FY 99 advance planning of the refueling and complex overhaul of Dwight D. Eisenhower (CVN 69) and its reactor plants.
	warfare.ru /?lang=&catid=286&linkid=2052 (2364 words)

	What is an ELT?
		One loop circulates water through the nuclear reactor to transfer the heat generated by the nuclear reaction to a heat exchanger.
		We control the water in the reactor loop (called the primary loop) differently than the water in the steam plant loop (called the secondary loop).
		Another job of an ELT is to perform radiochemical analyses to determine the level of radioactivity and what isotopes are causing the radioactivity in the primary loop, and also to test the secondary loop to ensure none of the radioactive water has leaked from the primary side to the secondary side.
	www.nukeworker.com /forum/index.php?topic=4089.msg28091 (3203 words)

	What is an ELT?
		One loop circulates water through the nuclear reactor to transfer the heat generated by the nuclear reaction to a heat exchanger.
		Another job of an ELT is to perform radiochemical analyses to determine the level of radioactivity and what isotopes are causing the radioactivity in the primary loop, and also to test the secondary loop to ensure none of the radioactive water has leaked from the primary side to the secondary side.
		The third job of the ELT is to monitor the radioactivity released by the nuclear reactor plant.
	nukeworker.com /forum/index.php?topic=4089.0 (3292 words)

	The SteelNavy.Com Message Board: Re: She has 2 biggies now, the old Westinghouse built ones are gone..... (Site not responding. Last check: )
		The last re-fueling was almost : cancelled due to the cost- about that of a : new Nimitz in 1990 dollars.
		De-contaminating : the Reactor compartments, cutting them out, : and burying them to replace with a new would : destroy the structral integrity of the hull : and well as cost BILLIONS more, prohibitive : in a hull that was already 30 years old.
		And : the A4W reactor vessel would never fit in : the existing R/C's.
	members.boardhost.com /Warship/msg/1180238779.html (303 words)

	The SteelNavy.Com Message Board: Re: She has 2 biggies now, the old Westinghouse built ones are gone..... (Site not responding. Last check: )
		The last re-fueling was almost cancelled due to the cost- about that of a new Nimitz in 1990 dollars.
		De-contaminating the Reactor compartments, cutting them out, and burying them to replace with a new would destroy the structral integrity of the hull and well as cost BILLIONS more, prohibitive in a hull that was already 30 years old.
		And the A4W reactor vessel would never fit in the existing R/C's.
	members.boardhost.com /Warship/msg/1180238136.html (392 words)

	A1B reactor information - Search.com
		The A1B reactor plant is still in the design phase, but is slated to be installed in the U.S. Navy's next class of nuclear aircraft carriers.
		B = The contractor designing the reactor, Bechtel (Bettis Atomic Power Laboratories)
		Initial plans for the "CVN(X)" or CVN-21 carrier include a two reactor complex intended to replace the A4W/A1G reactor design used on the Nimitz class carriers.
	domainhelp.search.com /reference/A1B_reactor (119 words)

	Perth Independent Media Centre (Site not responding. Last check: )
		The carrier's two nuclear reactors enable virtually unlimited range and endurance, with a top speed in excess of 30 knots [56k].
		There are several non reactor methods of producing Mo-99/Tc-99m; large scale development of a non reactor technique would dramatically reduce the current reliance on research reactors, but none of these techniques is in routine use.
		There are several, but for the sake of simplicity it’s best to consider two main areas: non reactor methods of producing radioisotopes (especially cyclotrons), and alternative clinical technologies.
	perth.indymedia.org /?action=newswire&parentview=13016 (3656 words)

	Avionews (Site not responding. Last check: )
		As of 2006, George H. Bush (CVN-77), the tenth and last of the class, was built by Northrop Grumman Newport News and will enter service in 2008.
		Equipped with only two A4W nuclear reactor that would ensure autonomy to a city of a medium dimensions.
		It has a speed of 30 knots and a displacement of 100.000 tons.
	www.avionews.com /index.php?corpo=see_news_home.php&news_id=74232&pagina_chiamante=index.php (211 words)

	Slashdot \| A $200-Million Floating Nuclear Plant?
		Typical nuclear power reactors for feeding the electrical grid are in the 600 to 1000 megawatt range, not 60 MW, and most facilities have more than one (the Pickering and Darlington facilities near Toronto have 8 650 MW and 4 850 MW reactors respectively).
		The reactors aboard an aircraft carrier do more than just run the lights, they can push the whole thing at speeds in excess of 40 knots (how much in excess isn't exactly talked about -- but even that is more than fast enough to water ski behind!).
		A reactor accident is defined by a failure of the fuel system that releases significant amount of radioactivity into the environment.
	hardware.slashdot.org /hardware/06/10/15/2230257.shtml (5852 words)

	A4W - mycountryonline.com
		The A4W reactor is the fourth nuclear fission reactor design for use in powering U. Navy aircraft carriers by a division of the
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		Example: g ",y owst A.ty spoK,sor says I a4w adi4tg Ida, a, w-4 we,.
	mycountryonline.com /about/A4W.htm (398 words)

	M&D Professional Services, Inc. \| Experience: Thermal Analysis
		Liquid sodium is used as a coolant in the Fast Flux Test Facility (FFTF) and solidifies at 208°F. The trace heat and insulation was designed to maintain the sodium in a liquid state during the transfer process.
		Prepared reports involving operating thermal, shock, pressure and vibration loads of risers on A4W vessels.
		Thermal analysis was performed to determine the maximum temperature of the seals in the cask lid during and after a postulated 30-minute fire.
	www.mdpsi.com /exp_thermal_eng.htm (563 words)

	Unconventional ship may be what Bush has in mind [Free Republic]
		I dunno--the real problem is that we haven't made ANY advances in aircraft carrier propulsion plant technology since the A4W reactor prototype back in the late 1960s.
		In 1969 during an exercise the USS Kitty Hawk overtook the TinCan I was on (travelling at 30 knots) like we were standing still.
		Not really classified: the SHP of the A4W plant is publically known, as is the displacement of the Truman, and the rest is math.
	www.freerepublic.com /forum/a3a87f4c46192.htm (5796 words)

	NCTAMSLANT :: Command Master Chief
		Served as Reactor Training Division Officer and Reactor Department Career Counselor.
		Detached BUPERS and reported to USS THEODORE ROOSEVELT CVN-71 in June 1998 served as Reactor Department LCPO until Feb 01.
		Reported to Supervisor of Shipbuilding Newport News VA and served as the Assistant Project Officer for CVN 76 and CVN 77 until Mar 2003.
	www.nctamslant.navy.mil /index.php?id=484&secid=14&docinput[month]=2&docinput[year]=2007 (563 words)

	R. Lee Ermeys SOUND OFF Forum • View topic - Commissioned U. S. Aircraft Carrier Status As Of 2006/07 [ Guest ]
		After nearly 25 years of service, the USA’s nuclear aircraft carriers undergo a 3-year maintenance period to refuel their nuclear reactors, upgrade and modernize combat and communication systems, and overhaul the ship’s hull, mechanical and electrical systems.
		The new system is expected to make use of advances from the USA’s Seawolf and Virginia Class submarine reactors, in order to eliminate expensive reactor refueling completely, increase the reactors’ output, and drop the number of people required to operate them.
		Unless otherwise specified, all contracts are issued to Northrop Grumman’s Newport News in Newport News, VA by the Naval Sea Systems Command in Washington, DC.
	rleeermey.org /viewtopic.php?t=10518 (3540 words)

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