Fayetteville Public Library
The Fayetteville Public Library is a library in Fayetteville, Arkansas. The Leadership in Energy and Environmental Design silver-certified library was named "Library of the Year" in 2005 by Library Journal and an "American Landmark Library" by TravelSmart. Fayetteville Public Library was first created in 1916 and was housed in the brand-new Washington County Courthouse; the library was contained in two rooms in the basement of the building. The building became too small, the Fayetteville Public Library moved to the City Administration Building in 1937 along with several other city offices; this building became too small following Fayetteville's rapid post-World War II growth. Residents began fundraising for a new building, a site on East Dickson Street was tapped by the City of Fayetteville in 1959. A funding measure of $255,000 was approved for the site, with architect Warren Segraves in charge of the design. Built at the edge of the Washington-Willow Historic District, the site was dedicated on June 4, 1962 by Senator J. William Fulbright.
The plot to the east was purchased in 1966 and the plot to the west in 1989. The building on the west plot was connected to the library, forming a large facility of 31,500 square feet; this large building held the Ozark Regional Library System and the Talking Books service. The Ozark Regional Library System split into the Washington County Library System and the Benton County Library System in 1999, the WCLS left the FPL building the following year. In 2000 Fayetteville citizens approved a sales tax increase to build a new library. A significant contribution of $3 million from Jim Blair in honor of his late wife and aunt was announced in 2002, ground was broken two months later; the 88,000 square feet building was opened in September 2004 at a cost of $23 million. Fayetteville Public Library was designed by Meyer and Rockcastle, Ltd. of Minneapolis and was opened in October 2004. The library was the first building in Arkansas to register with the U. S. Green Building Council, in June 2001, achieved the silver LEED designation in 2006.
To earn this designation the library employed many green-design techniques. The library was built a few blocks away from the Fayetteville Historic Square, making it a textbook smart growth project. During construction, any trees removed were harvested and used for furniture or donated to local parks. Throughout the project 99% of the construction waste was recycled or reused. By incorporating a green roof and using alternative roofing materials, the design team reduced heat island effect by as much as 20 degrees. Water collected on the roof is reused for landscape irrigation through an underground cistern, saving about 500,000 US gallons of water a year; the library's 10 waterless urinals served as a successful pilot project for the Arkansas Department of Health and Human Services. In 2009, the library received a grant from the City / County Management Association to install 10 kW solar panels for energy generation. Green Libraries: Smaller Footprint for Bigger Impact - What makes FPL's Blair Library a "green" library Fayetteville Public Library website Meyer and Rockcastle, Ltd.
Opening Month Gallery
Fuel oil is a fraction obtained from petroleum distillation, either as a distillate or a residue. In general terms, fuel oil is any liquid fuel, burned in a furnace or boiler for the generation of heat or used in an engine for the generation of power, except oils having a flash point of 42 °C and oils burned in cotton or wool-wick burners. Fuel oil is made of long hydrocarbon chains alkanes and aromatics; the term fuel oil is used in a stricter sense to refer only to the heaviest commercial fuel that can be obtained from crude oil, i.e. heavier than gasoline and naphtha. Small molecules like those in propane, gasoline for cars, jet fuel have low boiling points, they are removed at the start of the fractional distillation process. Heavier petroleum products like diesel fuel and lubricating oil are much less volatile and distill out more while bunker oil is the bottom of the barrel. Oil has many uses. A small amount of electricity is produced by diesel, but it is more polluting and more expensive than natural gas.
It is used as a backup fuel for peaking power plants in case the supply of natural gas is interrupted or as the main fuel for small electrical generators. In Europe, the use of diesel is restricted to cars, SUVs, trucks and buses; the market for home heating using fuel oil, called heating oil, has decreased due to the widespread penetration of natural gas as well as heat pumps. However, it is common in some areas, such as the Northeastern United States. Residual fuel oil is less useful because it is so viscous that it has to be heated with a special heating system before use and it may contain high amounts of pollutants sulfur, which forms sulfur dioxide upon combustion. However, its undesirable properties make it cheap. In fact, it is the cheapest liquid fuel available. Since it requires heating before use, residual fuel oil cannot be used in road vehicles, boats or small ships, as the heating equipment takes up valuable space and makes the vehicle heavier. Heating the oil is a delicate procedure, impractical on small, fast moving vehicles.
However, power plants and large ships are able to use residual fuel oil. Use of residual fuel oil was more common in the past, it powered boilers, railroad steam locomotives, steamships. Locomotives, have become powered by diesel or electric power; some industrial boilers still so do some old buildings, including in New York City. In 2011 The City estimated that the 1% of its buildings that burned fuel oils No. 4 and No. 6 were responsible for 86% of the soot pollution generated by all buildings in the city. New York made the phase out of these fuel grades part of its environmental plan, PlaNYC, because of concerns for the health effects caused by fine particulates, all buildings using fuel oil No. 6 had been converted to less polluting fuel by the end of 2015. Residual fuel's use in electrical generation has decreased. In 1973, residual fuel oil produced 16.8% of the electricity in the US. By 1983, it had fallen to 6.2%, as of 2005, electricity production from all forms of petroleum, including diesel and residual fuel, is only 3% of total production.
The decline is the result of price competition with natural gas and environmental restrictions on emissions. For power plants, the costs of heating the oil, extra pollution control and additional maintenance required after burning it outweigh the low cost of the fuel. Burning fuel oil residual fuel oil, produces uniformly higher carbon dioxide emissions than natural gas. Heavy fuel oils continue to be used in the boiler "lighting up" facility in many coal-fired power plants; this use is analogous to using kindling to start a fire. Without performing this act it is difficult to begin the large-scale combustion process; the chief drawback to residual fuel oil is its high initial viscosity in the case of No. 6 oil, which requires a engineered system for storage and burning. Though it is still lighter than water it is much heavier and more viscous than No. 2 oil, kerosene, or gasoline. No. 6 oil must, in fact, be stored at around 38 °C heated to 65–120 °C before it can be pumped, in cooler temperatures it can congeal into a tarry semisolid.
The flash point of most blends of No. 6 oil is, about 65 °C. Attempting to pump high-viscosity oil at low temperatures was a frequent cause of damage to fuel lines and related equipment which were designed for lighter fuels. For comparison, BS 2869 Class G heavy fuel oil behaves in similar fashion, requiring storage at 40 °C, pumping at around 50 °C and finalising for burning at around 90–120 °C. Most of the facilities which burned No. 6 or other residual oils were industrial plants and similar facilities constructed in the early or mid 20th century, or which had switched from coal to oil fuel during the same time period. In either case, residual oil was seen as a good prospect because it was cheap and available. Most o
Clarksville is a city in Johnson County, United States. As of the 2010 census the population was 9,178, up from 7,719 in 2000; as of 2016, the estimated population was 9,524. The city is the county seat of Johnson County, it is nestled between the Arkansas River and the foothills of the Ozark Mountains, Interstate 40 and US Highway 64 intersect within the city limits. Clarksville-Johnson County is known for its peaches, scenic byways and abundance of natural outdoor recreational activities; the community began. After the Osage tribe was relocated by treaty, Cherokee settlers came to Arkansas by 1800 and lived along the Arkansas River. Indian trading factors such as Matthew Lyon established their offices at Spadra, on the west end of Lake Dardanelle on the Arkansas River, a Clarksville location now occupied by Spadra Marina. A historical marker, dedicated in 1984, sits on Spadra Bluff, near the original river town of Spadra; the area was reserved for the Cherokee, so most early settlers of Johnson County did not move into the area until after 1828, the year the Cherokee gave up their land.
Spadra was the first county seat of convenient to steamboat lines. However when stagecoach and train transportation became more common, land routes from Little Rock to Fort Smith were directed along higher elevations through Clarksville; as Clarksville grew, it became the de facto location for the county seat circa 1833 due to severe flooding at Spadra. Clarksville was established by survey in November 1836 after Johnson County was formed from part of Pope County; the first court session was held in 1837 in a private building. By July 1853 the Little Rock and Fort Smith Railroad opted to go through Clarksville instead of Spadra, due to financial incentives provided by the county commissioners based in Clarksville. Twenty miles of track toward Spadra were removed during the realignment. Regular rail service began following the Civil War, aiding in Clarksville's growth, while the hamlet of New Spadra began beside the new tracks. Fewer settlers arrived by river transportation so Spadra was less useful, so its major buildings deteriorated or were moved, while Clarksville became the destination of many new settlers arriving by train.
Clarksville is located in south-central Johnson County at 35°27′50″N 93°28′38″W. The city is bordered to the south by the Arkansas River, although the city center is 3 miles north of the river and west of Spadra Creek. Interstate 40 leads west 55 miles to Fort Smith. According to the United States Census Bureau, Clarksville has a total area of 19.2 square miles, of which 18.5 square miles are land and 0.69 square miles, or 3.66%, are water. As of the census of 2000, there were 7,719 people, 2,960 households, 1,918 families residing in the city; the population density was 429.3 people per square mile. There were 3,240 housing units at an average density of 180.2 per square mile. The racial makeup of the city was 87.60% White, 3.46% Black or African American, 0.44% Native American, 0.47% Asian, 0.03% Pacific Islander, 6.15% from other races, 1.85% from two or more races. 15.26% of the population were Hispanic or Latino of any race. There were 2,960 households out of which 30.6% had children under the age of 18 living with them, 50.0% were married couples living together, 11.3% had a female householder with no husband present, 35.2% were non-families.
30.0% of all households were made up of individuals and 15.6% had someone living alone, 65 years of age or older. The average household size was 2.43 and the average family size was 3.01. In the city, the population was spread out with 23.9% under the age of 18, 12.5% from 18 to 24, 27.3% from 25 to 44, 20.0% from 45 to 64, 16.3% who were 65 years of age or older. The median age was 35 years. For every 100 females, there were 92.8 males. For every 100 females age 18 and over, there were 89.2 males. The median income for a household in the city was $24,548, the median income for a family was $30,758. Males had a median income of $22,052 versus $19,764 for females; the per capita income for the city was $16,305. About 16.2% of families and 20.3% of the population were below the poverty line, including 24.8% of those under age 18 and 13.4% of those age 65 or over. The Arkansas Cumberland College opened on 8 September 1891 in Clarksville; the founded educational institution was renamed the College of the Ozarks in 1920 and became the University of the Ozarks in 1987.
The University of the Ozarks is a private, liberal arts based university affiliated with the Presbyterian Church. Clarksville Schools is the city's public school district, its mascot is a panther. The school colors are white; the school system is broken up into five different categories: Primary, Middle, Junior High, High School. In 2011, Clarksville became the first school district in the state of Arkansas to issue every student in the 7th through 12th grades their own take home laptop computer. A video documenting the new measure can be seen here; the Clarksville School District has a graduation rate of over 92%. Clarksville is home to the Johnson County Peach Festival. Starting in 1938, it attracts visitors from all over the country. Activities and events include Barbershop chorus, gospel music, good ol' home cookin, handmade arts and crafts, street dance, frog jumping contest, terrapin derby, greased pig chase, a 4-mile run, parade and jelly bake-off and of course peach and peach cobbler eating contests.
It all concludes with
Clinton Presidential Center
The William J. Clinton Presidential Center and Park is the presidential library of Bill Clinton, the 42nd President of the United States, it is located in Little Rock and includes the Clinton Presidential Library, the offices of the Clinton Foundation, the University of Arkansas Clinton School of Public Service. It is the thirteenth presidential library to have been completed in the United States, the eleventh to be operated by the National Archives and Records Administration, the third to comply with the Presidential Records Act of 1978, it is situated on 17 acres of land located next to the Arkansas River and Interstate 30 and was designed by architectural firm Polshek Partnership, LLP with exhibition design by Ralph Appelbaum Associates. The main building cantilevers over the Arkansas River, echoing Clinton's campaign promise of "building a bridge to the 21st century". With a 68,698-square-foot floor plan, the library itself is the largest presidential library in terms of physical area, although the Ronald Reagan Presidential Library has the greatest space overall, due to its addition of the 90,000 square feet Air Force One Pavilion in 2005.
The archives are the largest as well, containing 2 million photographs, 80 million pages of documents, 21 million e-mail messages, 79,000 artifacts from the Clinton presidency. The Clinton Library is the most expensive, with all funding coming from 112,000 private donations; the museum showcases artifacts from Clinton's two terms as president and includes full-scale replicas of the Clinton-era Oval Office and Cabinet Room. Preliminary planning for the library began in 1997, while groundbreaking for the complex occurred on December 5, 2001. Early estimates put the library's cost at about $125 million. In 2001, the Clinton Foundation hoped to gather $200 million in donations to cover project costs. In the end, the entire project cost $165 million in private funding, with an additional $11.5 million of land given by the City of Little Rock to construct and covers 152,000 square feet within a 28 acres park. Fund-raising for the center was led by Terry McAuliffe, a friend of Clinton's who had contributed to the Clinton-Gore campaign in 1995.
Clinton himself was prohibited by law from soliciting donations for the center, but he did host private events relating to the library. There were no other legal restrictions on donations, the Clinton Foundation was able to accept unlimited private donations, all of which were tax deductible. $10 million of contributions came from Saudi Arabia. However, the Clinton Foundation declined to release a full donor list, similar to the Ronald Reagan Presidential Library. Donations exceeding $1 million were given from various other foreign governments, as well as foreign individuals. Various American organizations contributed millions of dollars to the foundation; the Clinton Presidential Center was dedicated on November 18, 2004. Although it was raining, the ceremony was attended by 30,000 people and included a 20-minute speech made by Clinton, who had undergone bypass surgery, it included performances by Bono, the African Drum Ballet and the Philander Smith Collegiate Choir, as well as an invocation given by Floyd Flake and video tribute from Nelson Mandela.
Four U. S. presidents were on the same stage together. All three other presidents spoke at the event as well. Overall, the ceremony featured six speakers. On November 17, 2009, the library's fifth anniversary saw Clinton giving a speech to 1,000 people, urging for the passage of health-care reform and the reduction of energy use, he mentioned the center and school as places where discussion on such topics could take place. The five-story main building comprises 20,000 square feet of exhibition space, the Great Hall, Forty Two, classrooms. A 2,000-square-foot private penthouse used by Clinton is located on the top floor of the main building, one level above the public museum area. In 2007 the Clinton Foundation installed on the rooftop of the Presidential library the private "Rooftop Garden" with a golf course; the organization of the exhibits within the main building was inspired by the famous Long Room in the Old Library at Trinity College, which Clinton first saw when he was a Rhodes Scholar.
The Cadillac One used during Clinton's presidency is housed on the first floor. On the second floor, the main gallery houses a 110-foot timeline, representing each of Clinton's years as President. There is an 80-seat theater, the Great Hall, the replicas of the Oval Office and Cabinet Room; the restaurant is located in the basement. Between November 18, 2000 and January 27, 2001, eight Lockheed C-5 Galaxy missions that moved 602 tonnes of President Bill Clinton's papers, gifts and other official materials from Andrews Air Force Base to Little Rock Air Force Base. Commercial trucks transported the cargoes from the base to the National Archives storage facility in Little Rock, where they were to remain until completion of the Clinton presidential library in 2004; the archives are housed in a building south of and connected to the main building, which contains NARA fac
Nuclear power is the use of nuclear reactions that release nuclear energy to generate heat, which most is used in steam turbines to produce electricity in a nuclear power plant. As a nuclear technology, nuclear power can be obtained from nuclear fission, nuclear decay and nuclear fusion reactions. Presently, the vast majority of electricity from nuclear power is produced by nuclear fission of uranium and plutonium. Nuclear decay processes are used in niche applications such as radioisotope thermoelectric generators. Generating electricity from fusion power remains at the focus of international research; this article deals with nuclear fission power for electricity generation. Civilian nuclear power supplied 2,488 terawatt hours of electricity in 2017, equivalent to about 10% of global electricity generation; as of April 2018, there are 449 civilian fission reactors in the world, with a combined electrical capacity of 394 gigawatt. As of 2018, there are 58 power reactors under construction and 154 reactors planned, with a combined capacity of 63 GW and 157 GW, respectively.
As of January 2019, 337 more reactors were proposed. Most reactors under construction are generation III reactors in Asia. Nuclear power is classified as a low greenhouse gas energy supply technology, along with renewable energy, by the Intergovernmental Panel on Climate Change. Since its commercialization in the 1970s, nuclear power has prevented about 1.84 million air pollution-related deaths and the emission of about 64 billion tonnes of carbon dioxide equivalent that would have otherwise resulted from the burning of fossil fuels. There is a debate about nuclear power. Proponents, such as the World Nuclear Association and Environmentalists for Nuclear Energy, contend that nuclear power is a safe, sustainable energy source that reduces carbon emissions. Opponents, such as Greenpeace and NIRS, contend that nuclear power poses many threats to people and the environment. Accidents in nuclear power plants include the Chernobyl disaster in the Soviet Union in 1986, the Fukushima Daiichi nuclear disaster in Japan in 2011, the more contained Three Mile Island accident in the United States in 1979.
There have been some nuclear submarine accidents. Nuclear reactors have caused the lowest number of fatalities per unit of energy generated when compared to fossil fuels and hydropower. Coal, natural gas and hydroelectricity each have caused a greater number of fatalities per unit of energy, due to air pollution and accidents. Collaboration on research and development towards greater efficiency and recycling of spent fuel in future generation IV reactors presently includes Euratom and the co-operation of more than 10 permanent member countries globally. In 1932 physicist Ernest Rutherford discovered that when lithium atoms were "split" by protons from a proton accelerator, immense amounts of energy were released in accordance with the principle of mass–energy equivalence. However, he and other nuclear physics pioneers Niels Bohr and Albert Einstein believed harnessing the power of the atom for practical purposes anytime in the near future was unlikely; the same year, his doctoral student James Chadwick discovered the neutron, recognized as a potential tool for nuclear experimentation because of its lack of an electric charge.
Experiments bombarding materials with neutrons led Frédéric and Irène Joliot-Curie to discover induced radioactivity in 1934, which allowed the creation of radium-like elements. Further work by Enrico Fermi in the 1930s focused on using slow neutrons to increase the effectiveness of induced radioactivity. Experiments bombarding uranium with neutrons led Fermi to believe he had created a new, transuranic element, dubbed hesperium. In 1938, German chemists Otto Hahn and Fritz Strassmann, along with Austrian physicist Lise Meitner and Meitner's nephew, Otto Robert Frisch, conducted experiments with the products of neutron-bombarded uranium, as a means of further investigating Fermi's claims, they determined that the tiny neutron split the nucleus of the massive uranium atoms into two equal pieces, contradicting Fermi. This was an surprising result: all other forms of nuclear decay involved only small changes to the mass of the nucleus, whereas this process—dubbed "fission" as a reference to biology—involved a complete rupture of the nucleus.
Numerous scientists, including Leó Szilárd, one of the first, recognized that if fission reactions released additional neutrons, a self-sustaining nuclear chain reaction could result. Once this was experimentally confirmed and announced by Frédéric Joliot-Curie in 1939, scientists in many countries petitioned their governments for support of nuclear fission research, just on the cusp of World War II, for the development of a nuclear weapon. In the United States, where Fermi and Szilárd had both emigrated, the discovery of the nuclear chain reaction led to the creation of the first man-made reactor, the research reactor known as Chicago Pile-1, which achieved self-sustaining power/criticality on December 2, 1942; the reactor's development was part of the Manhattan Project, the Allied effort to create atomic bombs during World War II. It led to the building of larger single-purpose production reactors, such as the X-10 Pile, for the production of weapons-grade plutonium for use in the first nuclear weapons.
The United States tested the first nuclear weapon in July 1945, the Trinity test, with the atomic bombings of Hiroshima and Nagasaki taking place one month later. In August 1945, the first distributed account of nuclear energy, in the form of the pocketbook The Atomic Age, discussed the peaceful future uses of nuclear energy and depicted a future where fo
The tonne referred to as the metric ton in the United States and Canada, is a non-SI metric unit of mass equal to 1,000 kilograms or one megagram. It is equivalent to 2,204.6 pounds, 1.102 short tons or 0.984 long tons. Although not part of the SI, the tonne is accepted for use with SI units and prefixes by the International Committee for Weights and Measures; the tonne is derived from the weight of 1 cubic metre of pure water. The SI symbol for the tonne is't', adopted at the same time as the unit in 1879, its use is official for the metric ton in the United States, having been adopted by the United States National Institute of Standards and Technology. It is a symbol, not an abbreviation, should not be followed by a period. Use of upper and lower case is significant, use of other letter combinations is not permitted and would lead to ambiguity. For example,'T','MT','Mt','mt' are the SI symbols for the tesla, megatesla and millitonne respectively. If describing TNT equivalent units of energy, this is equivalent to 4.184 petajoules.
In French and most varieties of English, tonne is the correct spelling. It is pronounced the same as ton, but when it is important to clarify that the metric term is meant, rather than short ton, the final "e" can be pronounced, i.e. "tonny". In Australia, it is pronounced. Before metrication in the UK the unit used for most purposes was the Imperial ton of 2,240 pounds avoirdupois or 20 hundredweight, equivalent to 1,016 kg, differing by just 1.6% from the tonne. The UK Weights and Measures Act 1985 explicitly excluded from use for trade certain imperial units, including the ton, unless the item being sold or the weighing equipment being used was weighed or certified prior to 1 December 1980, then only if the buyer was made aware that the weight of the item was measured in imperial units. In the United States metric ton is the name for this unit used and recommended by NIST. Both spellings are acceptable in Canadian usage. Ton and tonne are both derived from a Germanic word in general use in the North Sea area since the Middle Ages to designate a large cask, or tun.
A full tun, standing about a metre high, could weigh a tonne. An English tun of wine weighs a tonne, 954 kg if full of water, a little less for wine; the spelling tonne pre-dates the introduction of the SI in 1960. In the United States, the unit was referred to using the French words millier or tonneau, but these terms are now obsolete; the Imperial and US customary units comparable to the tonne are both spelled ton in English, though they differ in mass. One tonne is equivalent to: Metric/SI: 1 megagram. Equal to 1000000 grams or 1000 kilograms. Megagram, Mg, is the official SI unit. Mg is distinct from milligram. Pounds: Exactly 1000/0.453 592 37 lb, or 2204.622622 lb. US/Short tons: Exactly 1/0.907 184 74 short tons, or 1.102311311 ST. One short ton is 0.90718474 t. Imperial/Long tons: Exactly 1/1.016 046 9088 long tons, or 0.9842065276 LT. One long ton is 1.0160469088 t. For multiples of the tonne, it is more usual to speak of millions of tonnes. Kilotonne and gigatonne are more used for the energy of nuclear explosions and other events in equivalent mass of TNT loosely as approximate figures.
When used in this context, there is little need to distinguish between metric and other tons, the unit is spelt either as ton or tonne with the relevant prefix attached. *The equivalent units columns use the short scale large-number naming system used in most English-language countries, e.g. 1 billion = 1,000 million = 1,000,000,000.†Values in the equivalent short and long tons columns are rounded to five significant figures, see Conversions for exact values.ǂThough non-standard, the symbol "kt" is used for knot, a unit of speed for aircraft and sea-going vessels, should not be confused with kilotonne. A metric ton unit can mean 10 kilograms within metal trading within the US, it traditionally referred to a metric ton of ore containing 1% of metal. The following excerpt from a mining geology textbook describes its usage in the particular case of tungsten: "Tungsten concentrates are traded in metric tonne units (originally designating one tonne of ore containing 1% of WO3, today used to measure WO3 quantities in 10 kg units.
One metric tonne unit of tungsten contains 7.93 kilograms of tungsten." Note that tungsten is known as wolfram and has the atomic symbol W. In the case of uranium, the acronym MTU is sometimes considered to be metric ton of uranium, meaning 1,000 kg. A gigatonne of carbon dioxide equivalent is a unit used by the UN climate change panel, IPCC, to measure the effect of a technolo
Aerojet Rocketdyne is an American rocket and missile propulsion manufacturer. Headquartered in Sacramento, the company is owned by Aerojet Rocketdyne Holdings. Aerojet Rocketdyne was formed in 2013 when Aerojet and Pratt & Whitney Rocketdyne were merged, following the latter's acquisition by GenCorp from Pratt & Whitney. On April 27, 2015, the name of the holding company, GenCorp, was changed from GenCorp, Inc. to Aerojet Rocketdyne Holdings, Inc. RS-25 – Also known as the Space Shuttle Main Engine, it was the reusable main engine for the now-retired Space Shuttle. Remaining engines are scheduled for use on early Space Launch System launches after which an expendable version, RS-25E will be developed for follow-on SLS launches. RL10 – Developed by Pratt & Whitney and used on both the upper stage of the Delta IV as well as the Centaur upper stage for the Atlas V. Used on the Centaur upper stage for Titan, the Saturn I, on the vertical-landing McDonnell Douglas DC-X "Delta Clipper", it was intended to serve as the main propulsion engine for the proposed Altair lunar lander.
RS-68 – First stage engine for the Delta IV, designed as a simplified version of the SSME due to its expendable usage. It is the largest hydrogen-fueled rocket engine flown. J-2X – Engine was being developed for the Ares I's upper stage before the cancellation of the Constellation program; the engine was considered for the Space Launch System's Exploration Upper Stage before being replaced with a cluster of four RL10s. Baby Bantam – In June 2014, Aerojet Rocketdyne announced that they had "manufactured and tested an engine, 3D printed." The engine is a 22 kN thrust engine. AJ-26 – Rebranded and modified NK-33 engines imported from Russia. Used as first stage engine for the Antares before being replaced by the RD-181. AJ-60A – solid rocket motors for Atlas V launch vehicle. MR103G-.2lb Hydrazine monopropellant thrusters MR111g- 1 lb Hydrazine monopropellant thruster MR106L- 5-7lb Hydrazine monopropellant thruster MR107M - 45 lb Hydrazine monopropellant thruster Blue Origin CCE — the Blue Origin New Shepard Crew Capsule Escape Solid Rocket Motor is built by Aerojet Rocketdyne.
SJ61 A dual-mode ramjet/scramjet engine flown on the Boeing X-51 hypersonic demonstration vehicle. AJ10 Second stage engine for the Delta II, used as OMS engine for the Space Shuttle, the main engine for the European Orion Service Module. AR1, a proposed 500,000-pound-force-class thrust RP-1/LOX oxidizer-rich staged combustion cycle engine; the AR-22 is an engine in development in 2017 for the XS-1 spacecraft, based on the Space Shuttle Main Engine and utilizing parts remaining in Aerojet Rocketdyne and NASA inventories from earlier versions of the SSME. Two of the engines will be built for the spaceplane. On 13 October 2017, it was reported that Aerojet Rocketdyne completed a keystone demonstration on a new X3 ion thruster, a central part of the XR-100 system for the NextSTEP program; the X3 ion thruster was designed by the University of Michigan and is being developed in partnership with the University of Michigan, NASA, the Air Force. The X3 is a Hall-effect thruster operating at over 100 kW of power.
During the demonstration, it broke records for the maximum power output and operating current achieved by a Hall thruster to date. It operated at a range of power with electrical current of up to 260 amperes, it generated 5.4 Newtons of thrust, "which is the highest level of thrust achieved by any plasma thruster to date." A novelty in its design is that it incorporates three plasma channels, each a few centimeters deep, nested around one another in concentric rings. The system is 227 kg and one meter in diameter. Rocketdyne Category:Rocketdyne engines Aerojet Rocketdyne official site Aerojet Rocketdyne Holdings site