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Pneumatic Stabilized Platform
A Pneumatic stabilized platform (PSP) is a technology used to float a very large floating structure (VLFS). PSP utilizes indirect displacement, in which a platform rests on trapped air that displaces the water. The primary buoyancy force is provided by air pressure acting on the underside of the deck. The PSP is a distinct type of pneumatic platform, one in which the platform is composed of a number of cylindrical shaped components packed together in a rectangular pattern to form a module. Development The Pneumatically Stabilized Platform was originally proposed for constructing a new floating airport for San Diego in the Pacific Ocean, at least three miles off the tip of Point Loma. However, this proposed design was rejected in October, 2003 due to high cost, the difficulty in accessing such an airport, the difficulty in transporting jet fuel Jet fuel or aviation turbine fuel (ATF, also abbreviated avtur) is a type of aviation fuel designed for use in aircraft powered by g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Very Large Floating Structure
Very large floating structures (VLFSs) or very large floating platforms (VLFPs) are artificial islands, which may be constructed to create floating airports, bridges, breakwaters, piers and docks, storage facilities (for oil and natural gas), wind and solar power plants, for military purposes, to create industrial space, emergency bases, entertainment facilities (such as casinos), recreation parks, mobile offshore structures and even for habitation. Currently, several different concepts have been proposed for building floating cities or huge living complexes. Some units have been constructed and are presently in operation. Floating structures offer several advantages over more permanent structures which might extend from the shore into open water: *they do not damage the marine eco-system; *they do not cause silt deposition in deep harbors; *they do not disrupt the ocean currents; *they are easy to construct, since much of the construction is completed onshore; *installa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Floating Airport
A floating airport is an airport built and situated on a very large floating structure (VLFS) located many miles out at sea utilizing a flotation type of device or devices such as pneumatic stabilized platform (PSP) technology. As the population increases and land becomes more expensive and scarce, very large floating structures (VLFS) such as floating airports could help solve land use, pollution and aircraft noise issues. Early history The first discussion of a floating airport was for trans-Atlantic flights. At that time a passenger aircraft capable of making the trip could be built, but because of the massive need for fuel for the flight, it had a limited payload. An article appeared in the January 1930 issue of ''Popular Mechanics'' in which a model of a floating airport located in the Atlantic was proposed. To make safe flight possible with the aviation technology of that time, it called for eight such airports in the Atlantic. But unlike future floating airport ideas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Diego
San Diego ( , ; ) is a city on the Pacific Ocean coast of Southern California located immediately adjacent to the Mexico–United States border. With a 2020 population of 1,386,932, it is the eighth most populous city in the United States and the seat of San Diego County, the fifth most populous county in the United States, with 3,338,330 estimated residents as of 2019. The city is known for its mild year-round climate, natural deep-water harbor, extensive beaches and parks, long association with the United States Navy, and recent emergence as a healthcare and biotechnology development center. San Diego is the second largest city in the state of California, after Los Angeles. Historically home to the Kumeyaay people, San Diego is frequently referred to as the "Birthplace of California", as it was the first site visited and settled by Europeans on what is now the U.S. west coast. Upon landing in San Diego Bay in 1542, Juan Rodríguez Cabrillo claimed the area for S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Point Loma
Point Loma (Spanish: ''Punta de la Loma'', meaning "Hill Point"; Kumeyaay: ''Amat Kunyily'', meaning "Black Earth") is a seaside community within the city of San Diego, California. Geographically it is a hilly peninsula that is bordered on the west and south by the Pacific Ocean, the east by the San Diego Bay and Old Town, and the north by the San Diego River. Together with the Silver Strand / Coronado peninsula, the Point Loma peninsula defines San Diego Bay and separates it from the Pacific Ocean. The term "Point Loma" is used to describe both the neighborhood and the peninsula. Point Loma has an estimated population of 47,981 (including Ocean Beach), according to the 2010 Census. The Peninsula Planning Area, which includes most of Point Loma, comprises approximately . Point Loma is historically important as the landing place of the first European expedition to come ashore in present-day California. Point Loma houses two major military bases, a national cemetery, a nationa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jet Fuel
Jet fuel or aviation turbine fuel (ATF, also abbreviated avtur) is a type of aviation fuel designed for use in aircraft powered by gas-turbine engines. It is colorless to straw-colored in appearance. The most commonly used fuels for commercial aviation are Jet A and Jet A-1, which are produced to a standardized international specification. The only other jet fuel commonly used in civilian turbine-engine powered aviation is Jet B, which is used for its enhanced cold-weather performance. Jet fuel is a mixture of a variety of hydrocarbons. Because the exact composition of jet fuel varies widely based on petroleum source, it is impossible to define jet fuel as a ratio of specific hydrocarbons. Jet fuel is therefore defined as a performance specification rather than a chemical compound. Furthermore, the range of molecular mass between hydrocarbons (or different carbon numbers) is defined by the requirements for the product, such as the freezing point or smoke point. Kerosene-type jet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Floating Airport
A floating airport is an airport built and situated on a very large floating structure (VLFS) located many miles out at sea utilizing a flotation type of device or devices such as pneumatic stabilized platform (PSP) technology. As the population increases and land becomes more expensive and scarce, very large floating structures (VLFS) such as floating airports could help solve land use, pollution and aircraft noise issues. Early history The first discussion of a floating airport was for trans-Atlantic flights. At that time a passenger aircraft capable of making the trip could be built, but because of the massive need for fuel for the flight, it had a limited payload. An article appeared in the January 1930 issue of ''Popular Mechanics'' in which a model of a floating airport located in the Atlantic was proposed. To make safe flight possible with the aviation technology of that time, it called for eight such airports in the Atlantic. But unlike future floating airport ideas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Structural System
A structure is an arrangement and organization of interrelated elements in a material object or system, or the object or system so organized. Material structures include man-made objects such as buildings and machines and natural objects such as biological organisms, minerals and chemicals. Abstract structures include data structures in computer science and musical form. Types of structure include a hierarchy (a cascade of one-to-many relationships), a network featuring many-to-many links, or a lattice featuring connections between components that are neighbors in space. Load-bearing Buildings, aircraft, skeletons, anthills, beaver dams, bridges and salt domes are all examples of load-bearing structures. The results of construction are divided into buildings and non-building structures, and make up the infrastructure of a human society. Built structures are broadly divided by their varying design approaches and standards, into categories including building structures, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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