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Pueblo Memorial Airport
Pueblo Memorial Airport is a public airport located six miles east of Pueblo, in Pueblo County, Colorado, United States. It is primarily used for general aviation. Federal Aviation Administration records say the airport had 4,345 passenger boardings (enplanements) in calendar year 2008, 5,192 in 2009 and 11,641 in 2010. The National Plan of Integrated Airport Systems for 2011–2015 called it a ''non-primary commercial service'' airport based on enplanements in 2008/2009 (between 2,500 and 10,000 per year). History Built in 1941 as the Pueblo Army Air Base, it was used as an advanced flying school to train B-17 Flying Fortress and B-24 Liberator four engine heavy bomber crews. It was under the command of the United States Army Air Forces Second Air Force 360th Army Air Force Base Unit. Known bomb groups which trained or based at Pueblo were: * 94th Bombardment Group (B-17) January - April 1943 * 302d Bombardment Group (B-24) 30 September 1942 - 1 December 1942 * 351st Bombar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
USGS
The United States Geological Survey (USGS), formerly simply known as the Geological Survey, is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, and the natural hazards that threaten it. The organization's work spans the disciplines of biology, geography, geology, and hydrology. The USGS is a fact-finding research organization with no regulatory responsibility. The agency was founded on March 3, 1879. The USGS is a bureau of the United States Department of the Interior; it is that department's sole scientific agency. The USGS employs approximately 8,670 people and is headquartered in Reston, Virginia. The USGS also has major offices near Lakewood, Colorado, at the Denver Federal Center, and Menlo Park, California. The current motto of the USGS, in use since August 1997, is "science for a changing world". The agency's previous slogan, adopted on the occasion of its hundredth anniv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
12th Flying Training Wing
The 12th Flying Training Wing is a United States Air Force unit assigned to Air Education and Training Command's Nineteenth Air Force. It is headquartered at Joint Base San Antonio, Texas. The wing is the parent organization for the 479th Flying Training Group, located at NAS Pensacola, Florida and the 306th Flying Training Group, at The United States Air Force Academy, Colorado. The 12th Wing is the only unit in the Air Force conducting both pilot instructor training and combat systems officer training. The wing fought in combat as the 12th Tactical Fighter Wing during the Vietnam War and was the host unit at two major air bases in South Vietnam. Its McDonnell Douglas F-4 Phantom II aircraft flew thousands of combat missions between 1965 and 1971 before being withdrawn as part of the U.S. withdrawal from Vietnam and Southeast Asia. The current commander of the 12th Flying Training Wing is Colonel Scott Rowe. The current Command Chief Master Sergeant is Chief Master Sergeant ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Concrete
Concrete is a composite material composed of fine and coarse aggregate bonded together with a fluid cement (cement paste) that hardens (cures) over time. Concrete is the second-most-used substance in the world after water, and is the most widely used building material. Its usage worldwide, ton for ton, is twice that of steel, wood, plastics, and aluminum combined. Globally, the ready-mix concrete industry, the largest segment of the concrete market, is projected to exceed $600 billion in revenue by 2025. This widespread use results in a number of environmental impacts. Most notably, the production process for cement produces large volumes of greenhouse gas emissions, leading to net 8% of global emissions. Other environmental concerns include widespread illegal sand mining, impacts on the surrounding environment such as increased surface runoff or urban heat island effect, and potential public health implications from toxic ingredients. Significant research and development is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Portland Cement
Portland cement is the most common type of cement in general use around the world as a basic ingredient of concrete, mortar, stucco, and non-specialty grout. It was developed from other types of hydraulic lime in England in the early 19th century by Joseph Aspdin, and is usually made from limestone. It is a fine powder, produced by heating limestone and clay minerals in a kiln to form clinker, grinding the clinker, and adding 2 to 3 percent of gypsum. Several types of portland cement are available. The most common, called ordinary portland cement (OPC), is grey, but white Portland cement is also available. Its name is derived from its resemblance to Portland stone which was quarried on the Isle of Portland in Dorset, England. It was named by Joseph Aspdin who obtained a patent for it in 1824. His son William Aspdin is regarded as the inventor of "modern" portland cement due to his developments in the 1840s. The low cost and widespread availability of the limestone, shales ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asphalt
Asphalt, also known as bitumen (, ), is a sticky, black, highly viscous liquid or semi-solid form of petroleum. It may be found in natural deposits or may be a refined product, and is classed as a pitch. Before the 20th century, the term asphaltum was also used. Full text at Internet Archive (archive.org) The word is derived from the Ancient Greek ἄσφαλτος ''ásphaltos''. The largest natural deposit of asphalt in the world, estimated to contain 10 million tons, is the Pitch Lake located in La Brea in southwest Trinidad (Antilles island located on the northeastern coast of Venezuela), within the Siparia Regional Corporation. The primary use (70%) of asphalt is in Road surface, road construction, where it is used as the glue or binder mixed with construction aggregate, aggregate particles to create asphalt concrete. Its other main uses are for bituminous waterproofing products, including production of roofing felt and for sealing flat roofs. In material sciences an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Runway
According to the International Civil Aviation Organization (ICAO), a runway is a "defined rectangular area on a land aerodrome prepared for the landing and takeoff of aircraft". Runways may be a man-made surface (often asphalt concrete, asphalt, concrete, or a mixture of both) or a natural surface (sod, grass, soil, dirt, gravel, ice, sand or road salt, salt). Runways, as well as taxiways and Airport apron, ramps, are sometimes referred to as "tarmac", though very few runways are built using Tarmacadam, tarmac. Takeoff and landing areas defined on the surface of water for seaplanes are generally referred to as waterways. Runway lengths are now International Civil Aviation Organization#Use of the International System of Units, commonly given in meters worldwide, except in North America where feet are commonly used. History In 1916, in a World War I war effort context, the first concrete-paved runway was built in Clermont-Ferrand in France, allowing local company Michelin to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elevation
The elevation of a geographic location is its height above or below a fixed reference point, most commonly a reference geoid, a mathematical model of the Earth's sea level as an equipotential gravitational surface (see Geodetic datum § Vertical datum). The term ''elevation'' is mainly used when referring to points on the Earth's surface, while ''altitude'' or ''geopotential height'' is used for points above the surface, such as an aircraft in flight or a spacecraft in orbit, and '' depth'' is used for points below the surface. Elevation is not to be confused with the distance from the center of the Earth. Due to the equatorial bulge, the summits of Mount Everest and Chimborazo have, respectively, the largest elevation and the largest geocentric distance. Aviation In aviation the term elevation or aerodrome elevation is defined by the ICAO as the highest point of the landing area. It is often measured in feet and can be found in approach charts of the aerodrome. It is n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hectare
The hectare (; SI symbol: ha) is a non-SI metric unit of area equal to a square with 100-metre sides (1 hm2), or 10,000 m2, and is primarily used in the measurement of land. There are 100 hectares in one square kilometre. An acre is about and one hectare contains about . In 1795, when the metric system was introduced, the ''are'' was defined as 100 square metres, or one square decametre, and the hectare ("hecto-" + "are") was thus 100 ''ares'' or km2 (10,000 square metres). When the metric system was further rationalised in 1960, resulting in the International System of Units (), the ''are'' was not included as a recognised unit. The hectare, however, remains as a non-SI unit accepted for use with the SI and whose use is "expected to continue indefinitely". Though the dekare/decare daa (1,000 m2) and are (100 m2) are not officially "accepted for use", they are still used in some contexts. Description The hectare (), although not a unit of SI, i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acre
The acre is a unit of land area used in the imperial Imperial is that which relates to an empire, emperor, or imperialism. Imperial or The Imperial may also refer to: Places United States * Imperial, California * Imperial, Missouri * Imperial, Nebraska * Imperial, Pennsylvania * Imperial, Texa ... and United States customary units#Units of area, US customary systems. It is traditionally defined as the area of one Chain (unit), chain by one furlong (66 by 660 feet), which is exactly equal to 10 square chains, of a square mile, 4,840 square yards, or 43,560 square feet, and approximately 4,047 m2, or about 40% of a hectare. Based upon the International yard and pound, international yard and pound agreement of 1959, an acre may be declared as exactly 4,046.8564224 square metres. The acre is sometimes abbreviated ac but is usually spelled out as the word "acre".National Institute of Standards and Technolog(n.d.) General Tables of Units of Measurement . Traditionally, i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Officer Training School
Officer Training School (OTS) is a United States Air Force and United States Space Force commissioning program located at Maxwell Air Force Base in Montgomery, Alabama. Overview Officer Training School is a part of the Jeanne M. Holm Center for Officer Accession and Citizen Development, formerly the Air Force Officer Accession and Training Schools (AFOATS). Named for the late Major General Jeanne M. Holm, the Holm Center falls under Air University (AU), which, in turn, falls under the Air Education and Training Command ( AETC), an Air Force major command (MAJCOM). In addition to OTS, the Holm Center also has oversight responsibilities for the Air Force Reserve Officer Training Corps (AFROTC) pre-commissioning program on U.S. colleges and universities, the Air Force Junior Reserve Officer Training Corps (AFJROTC) citizen development program in U.S. high schools, and the entire Civil Air Patrol, both its senior member program as the U.S. Air Force Auxiliary (focused on search a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Texas Regional Airport At Hondo
South Texas Regional Airport at Hondo is a public use airport located two nautical miles (4 km) northwest of the central business district of Hondo, a city in Medina County, Texas, United States. It is owned by the City of Hondo and was formerly known as Hondo Municipal Airport. This airport is included in the National Plan of Integrated Airport Systems for 2011–2015, which categorized it as a ''general aviation'' facility. Facilities and aircraft South Texas Regional Airport at Hondo covers an area of 3,500 acres (1,416 ha) at an elevation of 930 feet (283 m) above mean sea level. It has four runways: 8/26 is 3,451 by 75 feet (1,052 x 23 m), 13/31 is 5,545 by 150 feet (1,690 x 46 m), 17L/35R is 6,002 by 100 feet (1,829 x 30 m), and 17R/35L is 3,224 by 140 feet (983 x 43 m). Runway 17L/35R has an asphalt pavement and the remaining three runways have a concrete surface. For the 12-month period ending January 20, 2012, the airport had 95,000 general aviation aircra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air Force ROTC
The Air Force Reserve Officer Training Corps (AFROTC) is one of the three primary commissioning sources for officers in the United States Air Force and United States Space Force, the other two being the United States Air Force Academy (USAFA) and Air Force Officer Training School (OTS). A subordinate command of the Air University within the Air Education and Training Command (AETC), AFROTC is aligned under the Jeanne M. Holm Center for Officer Accessions and Citizen Development at Maxwell AFB, Alabama. The Holm Center, formerly known as the Air Force Officer Accession and Training Schools (AFOATS), retains direct responsibility for both AFROTC and OTS. AFROTC is the largest and oldest source of commissioned officers for the U.S. Air Force. AFROTC's stated mission is to produce quality leaders for the U.S. Air Force. AFROTC units are located on 145 college and university campuses with 1100+ additional institutions of higher learning participating in ''cross-town agreements'' th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
