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Pueblo Army Air Base
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
USGS
The United States Geological Survey (USGS), founded as the Geological Survey, is an government agency, agency of the United States Department of the Interior, U.S. Department of the Interior whose work spans the disciplines of biology, geography, geology, and hydrology. The agency was founded on March 3, 1879, to study the landscape of the United States, its natural resources, and the natural hazards that threaten it. The agency also makes maps of planets and moons, based on data from List of NASA missions, U.S. space probes. The sole scientific agency of the U.S. Department of the Interior, USGS is a fact-finding research organization with no regulatory responsibility. It is headquartered in Reston, Virginia, with major offices near Lakewood, Colorado; at the Denver Federal Center; and in NASA Research Park in California. In 2009, it employed about 8,670 people. The current motto of the USGS, in use since August 1997, is "science for a changing world". The agency's previous s ... [...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 Peter J.S. Lee. The current Vice Commander is Colonel Daniel E. Rueth. The c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Concrete
Concrete is a composite material composed of aggregate bound together with a fluid cement that cures to a solid over time. It is the second-most-used substance (after water), the most–widely used building material, and the most-manufactured material in the world. When aggregate is mixed with dry Portland cement and water, the mixture forms a fluid slurry that can be poured and molded into shape. The cement reacts with the water through a process called hydration, which hardens it after several hours to form a solid matrix that binds the materials together into a durable stone-like material with various uses. This time allows concrete to not only be cast in forms, but also to have a variety of tooled processes performed. The hydration process is exothermic, which means that ambient temperature plays a significant role in how long it takes concrete to set. Often, additives (such as pozzolans or superplasticizers) are included in the mixture to improve the physical prop ... [...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 (masonry), 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 (substance), powder, produced by heating limestone and clay minerals in a kiln to form Clinker (cement), clinker, and then #Cement grinding, grinding the clinker with the addition of several percent (often around 5%) gypsum. Several types of portland cement are available. The most common, historically called ordinary portland cement (OPC), is grey, but white portland cement is also available. The cement was so named by Joseph Aspdin, who obtained a patent for it in 1824, because, once hardened, it resembled the fine, pale limestone known as Portland stone, quarried from the windswept cliffs of the Isle of Portland in Dorset. Portland stone was p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asphalt Concrete
Asphalt concrete (commonly called asphalt, blacktop, or pavement in North America, and Tarmacadam, tarmac or bitumen macadam in the United Kingdom and the Republic of Ireland) is a composite material commonly used to surface road surface, roads, parking lots, airports, and the core of embankment dams. Asphalt mixtures have been used in pavement construction since the nineteenth century. It consists of Construction aggregate, mineral aggregate Binder (material), bound together with bitumen (a substance also independently known as asphalt, Pitch (resin), pitch, or tar), laid in layers, and compacted. The American English terms ''asphalt'' (or ''asphaltic'') ''concrete'', ''bituminous asphalt concrete'', and ''bituminous mixture'' are typically used only in engineering and construction documents, which define concrete as any composite material composed of mineral aggregate adhered with a binder. The abbreviation, ''AC'', is sometimes used for ''asphalt concrete'' but can also denot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Runway
In aviation, a runway is an elongated, rectangular surface designed for the landing and takeoff of an aircraft. Runways may be a human-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, 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 manufacture Bréguet Aviation military aircraft. In January 1919, aviation p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elevation
The elevation of a geographic location (geography), ''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 equipotential surface, surface (see Geodetic datum#Vertical datum, 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 ''three-dimensional space, 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 (volcano), Chimborazo have, respectively, the largest elevation and the largest ECEF, geocentric distance. Aviation In aviation, the term ''elevation'' or ''aerodrome elevation'' is defined by the IC ... [...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), that is, square metres (), 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 ( 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 () 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, is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acre
The acre ( ) is a Unit of measurement, unit of land area used in the Imperial units, British imperial and the United States customary units#Area, United States customary systems. It is traditionally defined as the area of one Chain (unit), chain by one furlong (66 by 660 Foot (unit), 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, in the Middle Ages, an acre was conceived of as the area of land that could be ploughed by one man using a team of eight oxen in one day. The acre is still a statutory measure in the U ... [...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 se ... [...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 2,400 acres (971 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 May 31, 2023, the airport had 25,000 general-aviation aircraft oper ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air Force ROTC
The Air Force Reserve Officers' 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 and U.S. Space Force. AFROTC units are located on 145 college and university campuses with 1100+ additional institutions of higher learning participating in ''cr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
