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Port Heiden Airport
Port Heiden Airport is a state-owned public-use airport located six nautical miles (7 mi, 11 km) northeast of the central business district of Port Heiden, in the Lake and Peninsula Borough of the U.S. state of Alaska. Scheduled airline service to King Salmon Airport is provided by Peninsula Airways (PenAir). As per Federal Aviation Administration records, the airport had 919 passenger boardings (enplanements) in calendar year 2008, 964 enplanements in 2009, and 1,037 in 2010. It is included in the National Plan of Integrated Airport Systems for 2011–2015, which categorized it as a ''general aviation'' facility (the ''commercial service'' category requires at least 2,500 enplanements per year). History Originally opened as Fort Morrow Army Airfield, the facility was closed after World War II and returned to civilian status. Beginning in 1958 the airport was used to support Port Heiden Air Force Station, a Cold War United States Air Force Distant Early Warni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
State Of Alaska DOT&PF
The Alaska Department of Transportation & Public Facilities (DOT&PF) is a department within the government of Alaska. Its headquarters are in Alaska's capital city, Juneau. The mission of Alaska DOT&PF is to "''Keep Alaska Moving through service and infrastructure.''" The Alaska Department of Transportation was established on July 1, 1977, by Alaska Highway Commissioner Walter B. Parker, Walter Parker during the administration of Governor of Alaska, Governor Jay Hammond. The Alaska Department of Transportation and Public Facilities merged the former departments of Highways and Public Works. Alaska DOT&PF designs, constructs, operates and maintains the state's transportation infrastructure systems, buildings, and other facilities used by Alaskans and visitors. These include more than 5,600 miles of paved and gravel highways; more than 300 aviation facilities, including 235 rural airports and 2 international airports (Fairbanks International Airport and Ted Stevens Anchorage Intern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II
World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing military alliances: the Allies and the Axis powers. World War II was a total war that directly involved more than 100 million personnel from more than 30 countries. The major participants in the war threw their entire economic, industrial, and scientific capabilities behind the war effort, blurring the distinction between civilian and military resources. Aircraft played a major role in the conflict, enabling the strategic bombing of population centres and deploying the only two nuclear weapons ever used in war. World War II was by far the deadliest conflict in human history; it resulted in 70 to 85 million fatalities, mostly among civilians. Tens of millions died due to genocides (including the Holocaust), starvation, ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air Taxi
An air taxi is a small commercial aircraft that makes short flights on demand. In 2001 air taxi operations were promoted in the United States by a NASA and aerospace industry study on the potential Small Aircraft Transportation System (SATS) and the rise of light-jet aircraft manufacturing. Since 2016, air taxis have reemerged as part of the burgeoning field of eVTOL. Regulation In Canada, air taxi operations are regulated by Transport Canada under Canadian Aviation Regulation 703. The Canadian definition of air taxi includes all commercial single-engined aircraft, multi-engined helicopters flown by visual flight rules by one pilot and all multi-engined, non-turbo-jet aircraft, with a maximum take-off weight or less and nine or fewer passenger seats, that are used to transport people or goods or for sightseeing. In the US, air taxi and air charter operations are governed by 14 CFR Part 135 and 14 CFR part 298 of the Federal Aviation Regulations (FAR). [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gravel
Gravel is a loose aggregation of rock fragments. Gravel occurs naturally throughout the world as a result of sedimentary and erosive geologic processes; it is also produced in large quantities commercially as crushed stone. Gravel is classified by particle size range and includes size classes from granule- to boulder-sized fragments. In the Udden-Wentworth scale gravel is categorized into granular gravel () and pebble gravel (). ISO 14688 grades gravels as fine, medium, and coarse, with ranges 2–6.3 mm to 20–63 mm. One cubic metre of gravel typically weighs about 1,800 kg (or a cubic yard weighs about 3,000 lb). Gravel is an important commercial product, with a number of applications. Almost half of all gravel production is used as aggregate for concrete. Much of the rest is used for road construction, either in the road base or as the road surface (with or without asphalt or other binders.) Naturally occurring porous gravel deposits have a ... [...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] |
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] |
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] |
Cold Bay, Alaska
Cold Bay ( ale, Udaamagax,; Sugpiaq language, Sugpiaq: ''Pualu'') is a city in Aleutians East Borough, Alaska, United States. As of the 2010 United States Census, 2010 census, the population was 108, but at the 2020 United States Census, 2020 census this had reduced to 50. Cold Bay is one of the main commercial centers of the Alaska Peninsula, which extends west towards the Aleutian Islands, and is home to Cold Bay Airport. History There is evidence of prehistoric occupation by Aleuts and later Russian encampments. Cold Bay's significance to American history began with the Japanese invasion of the Aleutians in World War II. General Simon Bolivar Buckner, Jr. ordered the creation of Fort Randall (Alaska), Fort Randall, an airbase on the shores of Cold Bay, in 1942 as a part of a general expansion of American assets in the Aleutians. It (along with Otter Point) served as a base for the 11th Air Force to provide protection to the only deep water port in the Aleutians at the time, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cold Bay Air Force Station
Cold Bay Air Force Station (AAC ID: F-26, LRR ID: A-08, DEW ID: COB-MAIN) is a closed United States Air Force General Surveillance Radar station. It is located southwest of Anchorage, Alaska. The ground control intercept (GCI) station F-26 was closed on 1 November 1983. A new minimally attended Long Range Radar (LRR) site, A-08 was built about 5 miles to the southeast of the closed Air Force Station as part of the Alaska Radar System. Today, it remains active as part of the Alaska NORAD Region under the jurisdiction of the 611th Air Support Group, Elmendorf AFB, Alaska. History Cold Bay AFS was a continental defense radar station constructed to provide the United States Air Force early warning of an attack by the Soviet Union on Alaska. Planning for a surveillance station at Cold Bay began in July 1956 and construction commenced later that year. Not part of the first 25 Aircraft Control and Warning (AC&W) radar stations, Cold Bay AFS was added as part of the Aleutian e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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