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PMRF
The Pacific Missile Range Facility, Barking Sands is a U.S. naval facility and airport located five nautical miles (9 km) northwest of the central business district of Kekaha, in Kauai County, Hawaii, United States. PMRF is the world's largest instrumented, multi-dimensional testing and training missile range. The US military and its contractors favor its relative isolation, ideal year-round tropical climate and encroachment-free environment (see "PMRF Agriculture Preservation Initiative" below). It is the only range in the world where submarines, surface ships, aircraft and space vehicles can operate and be tracked simultaneously. There are over of instrumented underwater range and over of controlled airspace. The base itself covers roughly . The base includes a runway with operations and maintenance facilities. It has roughly 70 housing units and various recreational facilities for those who can access the base. The base has support facilities at Port Allen, Makaha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kekaha, Hawaii
Kekaha (literally, "the place" in Hawaiian) is a census-designated place (CDP) in Kauai County, Hawaii, United States. The population was 3,715 at the 2020 census, up from 3,175 at the 2000 census. History For most of the 20th century, the Kekaha Sugar Mill (owned by Amfac) was the centerpiece of agriculture on Kauai's west side. The sugar mill had a major influence in Kekaha's development, including banking, employment, transportation, housing and utilities such as water and electricity. The mill employed several generations of local families. It closed in 2000 when the entire sugar industry in Hawaii collapsed. The mill was purchased in 2005 by mainland investors who sold off its heavy machinery to other mills as far away as Africa. Hawaii's first (and only) train robbery occurred here in February 1920, when a masked gunman stopped a slow-moving sugar train and escaped with the locomotive and $11,000 taken from the labor paymaster on board. Police recovered the money in a s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kekaha Sugar Company
Kekaha (literally, "the place" in Hawaiian) is a census-designated place (CDP) in Kauai County, Hawaii, United States. The population was 3,715 at the 2020 census, up from 3,175 at the 2000 census. History For most of the 20th century, the Kekaha Sugar Mill (owned by Amfac) was the centerpiece of agriculture on Kauai's west side. The sugar mill had a major influence in Kekaha's development, including banking, employment, transportation, housing and utilities such as water and electricity. The mill employed several generations of local families. It closed in 2000 when the entire sugar industry in Hawaii collapsed. The mill was purchased in 2005 by mainland investors who sold off its heavy machinery to other mills as far away as Africa. Hawaii's first (and only) train robbery occurred here in February 1920, when a masked gunman stopped a slow-moving sugar train and escaped with the locomotive and $11,000 taken from the labor paymaster on board. Police recovered the money in a sw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Niihau
Niihau ( Hawaiian: ), anglicized as Niihau ( ), is the westernmost main and seventh largest inhabited island in Hawaii. It is southwest of Kauaʻi across the Kaulakahi Channel. Its area is . Several intermittent playa lakes provide wetland habitats for the Hawaiian coot, the Hawaiian stilt, and the Hawaiian duck. The island is designated as critical habitat for ''Brighamia insignis'', an endemic and endangered species of Hawaiian lobelioid. The United States Census Bureau defines Niihau and the neighboring island and State Seabird Sanctuary of Lehua as Census Tract 410 of Kauai County, Hawaii. Its 2000 census population was 160, most of whom are native Hawaiians; Its 2010 census population was 170. At the 2020 census, the population had fallen to 84. Elizabeth Sinclair purchased Niihau in 1864 for from the Kingdom of Hawaii. The island's private ownership passed on to her descendants, the Robinsons. During World War II, the island was the site of the Niihau incident, in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Defense Contractor
The arms industry, also known as the arms trade, is a global industry which manufactures and sells weapons and military technology. It consists of a commercial industry involved in the research and development, engineering, production, and servicing of military material, equipment, and facilities. Arms-producing companies, also referred to as arms dealers, or as the military industry, produce arms for the armed forces of states and for civilians. Departments of government also operate in the arms industry, buying and selling weapons, munitions and other military items. An arsenal is a place where arms and ammunition - whether privately or publicly owned - are made, maintained and repaired, stored, or issued, in any combination. Products of the arms industry include guns, artillery, ammunition, missiles, military aircraft, military vehicles, ships, electronic systems, military communications, night-vision devices, holographic weapon sights, laser rangefinders, laser sight ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Kingsford Smith
Sir Charles Edward Kingsford Smith (9 February 18978 November 1935), nicknamed Smithy, was an Australian aviation pioneer. He piloted the first transpacific flight and the first flight between Australia and New Zealand. Kingsford Smith was born in Brisbane. He grew up in Sydney, leaving school at the age of 16 and becoming an engineering apprentice. He joined the Australian Army in 1915 and was a motorcycle despatch rider on the Gallipoli campaign. He later transferred to the Royal Flying Corps and was awarded the Military Cross in 1917 after being shot down. After the war's end, Kingsford Smith worked as a barnstormer in England and the United States before returning to Australia in 1921. He subsequently joined West Australian Airways as one of the country's first commercial pilots. In 1928, Kingsford Smith completed the first transpacific flight, a three-leg journey from California to Brisbane via Hawaii and Fiji. He and his co-pilot Charles Ulm became celebrities, tog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radar
Radar is a detection system that uses radio waves to determine the distance (''ranging''), angle, and radial velocity of objects relative to the site. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations, and terrain. A radar system consists of a transmitter producing electromagnetic waves in the radio or microwaves domain, a transmitting antenna, a receiving antenna (often the same antenna is used for transmitting and receiving) and a receiver and processor to determine properties of the objects. Radio waves (pulsed or continuous) from the transmitter reflect off the objects and return to the receiver, giving information about the objects' locations and speeds. Radar was developed secretly for military use by several countries in the period before and during World War II. A key development was the cavity magnetron in the United Kingdom, which allowed the creation of relatively small systems with sub-meter resolution. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Controlled Airspace
Controlled airspace is airspace of defined dimensions within which air traffic control (ATC) services are provided. The level of control varies with different classes of airspace. Controlled airspace usually imposes higher weather minimums than are applicable in uncontrolled airspace. It is the opposite of uncontrolled airspace. Controlled airspace is established mainly for three different reasons: * high-volume air traffic areas, e.g. near airports * Instrument flight rules traffic under ATC guidance * security, e.g. within an Air Defense Identification Zone Controlled airspace usually exists in the immediate vicinity of busier airports, where aircraft used in commercial air transport flights are climbing out from or making an approach to the airport, or at higher levels where air transport flights would tend to cruise. Some countries also provide controlled airspace almost generally, however in most countries it is common to provide uncontrolled airspace in areas where si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radar Tracker
A radar tracker is a component of a radar system, or an associated command and control (C2) system, that associates consecutive radar observations of the same target into Track (navigation), tracks. It is particularly useful when the radar system is reporting data from several different targets or when it is necessary to combine the data from several different radars or other sensors. Role of the radar tracker A classical rotating air surveillance radar system detects target echoes against a background of noise. It reports these detections (known as "plots") in polar coordinates representing the range and bearing of the target. In addition, noise in the radar receiver will occasionally exceed the detection threshold of the radar's Constant false alarm rate detector and be incorrectly reported as targets (known as false alarms). The role of the radar tracker is to monitor consecutive updates from the radar system (which typically occur once every few seconds, as the antenna rot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Space Vehicle
A space vehicle is the combination of a spacecraft and its launch vehicle which carries it into space. The earliest space vehicles were expendable launch systems, using a single or multistage rocket to carry a relatively small spacecraft in proportion to the total vehicle size and mass. An early exception to this, the Space Shuttle, consisted of a reusable orbital vehicle carrying crew and payload, supported by an expendable external propellant tank and two reusable solid-fuel booster rockets. Reusable launch systems are currently being developed by private industry. Early spacecraft or space vehicles were sometimes hyped as " spaceships", a term which comes from science fiction to designate a hypothetical vehicle which travels beyond low Earth orbit and is 100% reusable, needing only to be refueled like an airplane. History In the 1865 Jules Verne novel ''From the Earth to the Moon'', successful attempts are made to launch three people in a projectile with the goal of a M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aircraft
An aircraft is a vehicle that is able to fly by gaining support from the air. It counters the force of gravity by using either static lift or by using the dynamic lift of an airfoil, or in a few cases the downward thrust from jet engines. Common examples of aircraft include airplanes, helicopters, airships (including blimps), gliders, paramotors, and hot air balloons. The human activity that surrounds aircraft is called ''aviation''. The science of aviation, including designing and building aircraft, is called '' aeronautics.'' Crewed aircraft are flown by an onboard pilot, but unmanned aerial vehicles may be remotely controlled or self-controlled by onboard computers. Aircraft may be classified by different criteria, such as lift type, aircraft propulsion, usage and others. History Flying model craft and stories of manned flight go back many centuries; however, the first manned ascent — and safe descent — in modern times took place by larger hot-air ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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