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Perkiomen Valley Airport
Perkiomen Valley Airport is formerly a privately owned, public use airport located two nautical miles (4 km) northeast of the central business district of Collegeville, a borough in Montgomery County, Pennsylvania, United States. The airport was built by Wells MacCormack and opened on March 1, 1938. It closed in March of 2021. It was included in the National Plan of Integrated Airport Systems for 2009–2013, which categorized it as a ''general aviation'' facility. Facilities and aircraft Perkiomen Valley Airport covers an area of 60 acres (24 ha) at an elevation of 277 feet (84 m) above mean sea level. It has one runway designated 9/27 with an asphalt surface measuring 2,880 by 40 feet (878 x 12 m). Valley Forge Aviation is a fixed-base operator (FBO) located on the field. For the 12-month period ending March 15, 2012, the airport had 10,520 aircraft operations, an average of 28 per day: 99.8% general aviation and 0.2% military. At that time there were 22 ai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Collegeville, Pennsylvania
Collegeville is a borough in Montgomery County, Pennsylvania, a suburb outside of Philadelphia on Perkiomen Creek. Collegeville was incorporated in 1896. It is the location of Ursinus College which opened in 1869. The population was 5,089 at the 2010 census. History The area which is present day Collegeville was part of the original William Penn purchase of "All the land lying on the Pahkehoma" in 1684. In 1799, Perkiomen Bridge was constructed using funds raised from a special lottery approved by the Pennsylvania Legislature. When the first post office in this area was established in 1847, it was called Perkiomen Bridge. In 1832, the first school for primary and secondary students was established and it was later renamed Freeland Public School in 1844. In 1848, Henry A. Hunsicker built the "Freeland Seminary of Perkiomen Bridge." Village around the school became known as Freeland. In 1851, Abraham Hunsicker established the Pennsylvania Female College near present-day Glen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mean Sea Level
There are several kinds of mean in mathematics Mathematics is an area of knowledge that includes the topics of numbers, formulas and related structures, shapes and the spaces in which they are contained, and quantities and their changes. These topics are represented in modern mathematics ..., especially in statistics. Each mean serves to summarize a given group of data, often to better understand the overall value (magnitude (mathematics), magnitude and sign (mathematics), sign) of a given data set. For a data set, the ''arithmetic mean'', also known as "arithmetic average", is a measure of central tendency of a finite set of numbers: specifically, the sum of the values divided by the number of values. The arithmetic mean of a set of numbers ''x''1, ''x''2, ..., x''n'' is typically denoted using an overhead bar, \bar. If the data set were based on a series of observations obtained by sampling (statistics), sampling from a statistical population, the arithmetic mean is th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MSR Maps
Microsoft Research Maps (MSR Maps) was a free online repository of public domain aerial imagery and topographic maps provided by the United States Geological Survey (USGS). The site was a collaboration between Microsoft Research (MSR), Bing Maps, and the USGS. It was in operation from June 1998 to March 2016. It had 30,000 to 50,000 visitors per day as of January 2010. The site was renamed in 2010, prior to which it had been known as TerraServer-USANew Web Site Name . Microsoft Research Maps. January 30, 2010. (formerly Microsoft TerraServer). The site had black and white USGS aerial photographs of approximately 97% of the . In 2000, the USGS launched the new Urban Areas program, which wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The National Map
''The National Map'' is a collaborative effort of the United States Geological Survey (USGS) and other federal, state, and local agencies to improve and deliver topographic information for the United States. The purpose of the effort is to provide "...a seamless, continuously maintained set of public domain geographic base information that will serve as a foundation for integrating, sharing, and using other data easily and consistently". ''The National Map'' is part of the USGS National Geospatial Program. The geographic information available includes orthoimagery (aerial photographs), elevation, geographic names, hydrography, boundaries, transportation, structures and land cover. ''The National Map'' is accessible via the Web, as products and services, and as downloadable data. Its uses range from recreation to scientific analysis to emergency response. ''The National Map'' is a significant contribution to the U.S. National Spatial Data Infrastructure (NSDI) from the Federa ... [...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] |
PennDOT
The Pennsylvania Department of Transportation (PennDOT) oversees transportation issues in the Commonwealth of Pennsylvania. The administrator of PennDOT is the Pennsylvania Secretary of Transportation, currently Yassmin Gramian. Presently, PennDOT supports over of state roads and highways, about 25,000 bridges, as well as new roadway construction, the exception being the Pennsylvania Turnpike Commission, although they currently follow PennDOT policies and procedures. In addition, other modes of transportation are supervised or supported by PennDOT. These include aviation, Railroad, rail traffic, mass transit, intrastate highway shipping traffic, motor vehicle safety & licensing, and Driver's license, driver licensing. PennDOT also supports the Ports of Philadelphia, Pittsburgh, and Erie, Pennsylvania, Erie. The current budget is approximately $3.8 billion in federal and state funds. The state budget is supported by the motor vehicle fuels tax which is dedicated solely to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Airports In Pennsylvania
This is a list of airports in the U.S. state of Pennsylvania, grouped by type and sorted by location. The list includes public-use and military airports in the state. Some private-use and former airports may be included where notable, such as airports that were previously public-use, those with commercial enplanements recorded by the Federal Aviation Administration, FAA, or airports assigned an International Air Transport Association, IATA airport code. Airports See also * Essential Air Service * Pennsylvania World War II Army Airfields * Susquehanna Area Regional Airport Authority (SARAA), governing authority of four airports in south-central Pennsylvania. * Wikipedia:WikiProject Aviation/Airline destination lists: North America#Pennsylvania References External links Federal Aviation Administration (FAA): FAA Airport Data (Form 5010)from National Flight Data Center (NFDC), also available froAirportIQ 5010National Plan of Integrated Airport Systems (2017–2021) released ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aircraft Engine
An aircraft engine, often referred to as an aero engine, is the power component of an aircraft propulsion system. Most aircraft engines are either piston engines or gas turbines, although a few have been rocket powered and in recent years many small UAVs have used electric motors. Manufacturing industry In commercial aviation the major Western manufacturers of turbofan engines are Pratt & Whitney (a subsidiary of Raytheon Technologies), General Electric, Rolls-Royce, and CFM International (a joint venture of Safran Aircraft Engines and General Electric). Russian manufacturers include the United Engine Corporation, Aviadvigatel and Klimov. Aeroengine Corporation of China was formed in 2016 with the merger of several smaller companies. The largest manufacturer of turboprop engines for general aviation is Pratt & Whitney. General Electric announced in 2015 entrance into the market. Development history * 1848: John Stringfellow made a steam engine for a 10-foot wingspan mod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Military Aviation
Military aviation comprises military aircraft and other flying machines for the purposes of conducting or enabling aerial warfare, including national airlift ( air cargo) capacity to provide logistical supply to forces stationed in a war theater or along a front. Airpower includes the national means of conducting such warfare, including the intersection of transport and warcraft. Military aircraft include bombers, fighters, transports, trainer aircraft, and reconnaissance aircraft. History The first military uses of aviation involved lighter-than-air balloons. During the Battle of Fleurus in 1794, the French observation balloon ''l'Entreprenant'' was used to monitor Austrian troop movements. The use of lighter-than-air aircraft in warfare became prevalent in the 19th century, including regular use in the American Civil War. Lighter-than-air military aviation persisted until shortly after World War II, gradually being withdrawn from various roles as heavier-than-air airc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fixed-base Operator
A fixed-base operator (FBO) is an organization granted the right by an airport to operate at the airport and provide aeronautical services such as fueling, hangaring, tie-down and parking, aircraft rental, aircraft maintenance, flight instruction, and similar services. In common practice, an FBO is the primary provider of support services to general aviation operators at a public-use airport and is on land leased from the airport, or, in rare cases, adjacent property as a "through the fence operation". In many smaller airports serving general aviation in remote or modest communities, the town itself may provide fuel services and operate a basic FBO facility. Most FBOs doing business at airports of high to moderate traffic volume are non-governmental organizations, either privately or publicly held companies. Though the term ''fixed-base operator'' originated in the United States, the term has become more common in the international aviation industry as business and corporate aviati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asphalt Concrete
Asphalt concrete (commonly called asphalt, blacktop, or pavement in North America, and tarmac, bitumen macadam, or rolled asphalt in the United Kingdom and the Republic of Ireland) is a composite material commonly used to surface roads, parking lots, airports, and the core of embankment dams. Asphalt mixtures have been used in pavement construction since the beginning of the twentieth century. It consists of mineral aggregate bound together with asphalt, laid in layers, and compacted. The process was refined and enhanced by Belgian-American inventor Edward De Smedt. The 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 denote ''asphalt content'' or ''asphalt cement'', ... [...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] |
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