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LGarde
LGarde, also L'Garde or L·Garde, is an American aerospace and defense technology company founded in 1971 in Orange County, CA and is the primary contractor for the Sunjammer spacecraft, the world largest solar sail. The company was an early pioneer of thin-skinned, multi-task inflatable structures used in various military and space applications. At the height of the Cold War, L·Garde developed and manufactured inflatable targets and decoy systems for U.S. military defense, and countermeasure systems for the Strategic Defense Initiative (Star Wars). After the Cold-War, the company used the technologies and manufacturing techniques it had developed to land a contract to design and build the inflatable antenna experiment and other thin-film inflatable space structures using its unique application of rigidizable tube technology. The company's unusual name is an acronym formed by the initials of the founding partners: Bill Larkin, Gayle Bilyeu, Alan Hirasuna, Rich Walstrom, Don Da ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LGarde Building
LGarde, also L'Garde or L·Garde, is an American aerospace and defense technology company founded in 1971 in Orange County, CA and is the primary contractor for the Sunjammer (spacecraft), Sunjammer spacecraft, the world largest solar sail. The company was an early pioneer of thin-skinned, multi-task inflatable structures used in various military and space applications. At the height of the Cold War, L·Garde developed and manufactured inflatable targets and decoy systems for U.S. military defense, and countermeasure systems for the Strategic Defense Initiative (Star Wars). After the Cold-War, the company used the technologies and manufacturing techniques it had developed to land a contract to design and build the Inflatable Antenna Experiment, inflatable antenna experiment and other thin-film inflatable space structures using its unique application of rigidizable tube technology. The company's unusual name is an acronym formed by the initials of the founding partners: Bill Larki ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inflatable Antenna Experiment
The Inflatable Antenna Experiment (IAE) was a NASA experiment that began on May 19, 1996, consisting of an inflatable antenna made of mylar which was launched from the Space Shuttle '' Endeavour'' during the 1996 STS-77 mission, in cooperation with the satellite Spartan-207. The antenna correctly inflated, separating from Spartan-207, before re-entering Earth's atmosphere a few days later, on 22 May. IAE was intended to pave the way for the development of lightweight inflatable structures for space applications. The IAE was constructed by LGarde LGarde, also L'Garde or L·Garde, is an American aerospace and defense technology company founded in 1971 in Orange County, CA and is the primary contractor for the Sunjammer spacecraft, the world largest solar sail. The company was an early p ..., Inc., an American aerospace company based in Orange County, CA. References {{Orbital launches in 1996 NASA satellites Antennas Space science experiments Spacecraft launch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sunjammer (spacecraft)
''Sunjammer'' (Solar Sail Demonstrator) was a NASA mission intended to demonstrate a solar sail constructed by LGarde, but was canceled before launch. The largest solar sail made as of 2013, ''Sunjammer'' was named after a 1964 Arthur C. Clarke story of the same name, '' Sunjammer'', in which several solar sails compete in a race to the Moon. ''Sunjammer'' was slated to launch in January 2015 as the secondary payload of a SpaceX Falcon 9 launch vehicle, along with the Earth observation satellite DSCOVR. Citing a lack of confidence in its contractor's ability to deliver, the mission was canceled in October 2014. Spacecraft design Constructed of Kapton in order to withstand the extreme temperatures of space, ''Sunjammer'' has a width and height of , giving it a total surface area of over and making it the largest solar sail as of 2013. Despite its huge surface area, ''Sunjammer'' has a thickness of only 5 μm, giving it an extremely low weight of about and allowing it to be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solar Sail
Solar sails (also known as lightsails, light sails, and photon sails) are a method of spacecraft propulsion using radiation pressure exerted by sunlight on large surfaces. A number of spaceflight missions to test solar propulsion and navigation have been proposed since the 1980s. The two spacecraft to successfully use the technology for propulsion were IKAROS, launched in 2010, and LightSail-2, launched in 2019. A useful analogy to solar sailing may be a sailing boat; the light exerting a force on the large surface is akin to a sail being blown by the wind. High-energy laser beams could be used as an alternative light source to exert much greater force than would be possible using sunlight, a concept known as beam sailing. Solar sail craft offer the possibility of low-cost operations combined with high speeds (relative to chemical rockets) and long operating lifetimes. Since they have few moving parts and use no propellant, they can potentially be used numerous times for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inflatable Space Structures
Inflatable space structures are structures which use pressurized air to maintain shape and rigidity. The technological approach has been employed from the early days of the space program with satellites such as Echo, to impact attenuation system that enabled the successful landing of the Pathfinder satellite and rover on Mars in 1997. Inflatable structures are also candidates for space structures, given their low weight, and hence easy transportability. Application Inflatable space structures use pressurized air or gas to maintain shape and rigidity. Notable examples of terrestrial inflatable structures include inflatable boats, and some military tent A tent is a shelter consisting of sheets of fabric or other material draped over or attached to a frame of poles or a supporting rope. While smaller tents may be free-standing or attached to the ground, large tents are usually anchored using g ...s. The airships of the twentieth century are examples of the concept applied in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
STS-77
STS-77 was the 77th Space Shuttle mission and the 11th mission of the Space Shuttle ''Endeavour''. The mission began from launch pad 39B from Kennedy Space Center, Florida on 19 May 1996 lasting 10 days and 40 minutes and completing 161 revolutions before landing on runway 33. The defense and aerospace technology company L'Garde was responsible for the design and manufacture of the Antenna in the Inflatable Antenna Experiment, a key component of the STS-77 mission. Crew Crew seat assignments Mission highlights NASA's flight of shuttle ''Endeavour'' was devoted to opening the commercial space frontier. During the flight the crew performed microgravity research aboard the commercially owned and operated SPACEHAB module. The mission also deployed and retrieved the Spartan-207/IAE (Inflatable Antenna Experiment) satellite and rendezvoused with a test satellite. A suite of four technology experiments known as the Technology Experiments for Advancing Missions in Space (TE ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jet Propulsion Laboratory
The Jet Propulsion Laboratory (JPL) is a Federally funded research and development centers, federally funded research and development center (FFRDC) in La Cañada Flintridge, California, Crescenta Valley, United States. Founded in 1936 by California Institute of Technology (Caltech) researchers, the laboratory is now owned and sponsored by NASA and administered and managed by Caltech. The primary function of the laboratory is the construction and operation of planetary robotic spacecraft, though it also conducts Earth-orbit and astronomy missions. It is also responsible for operating the NASA Deep Space Network (DSN). Among the major active projects at the laboratory, some are the Mars 2020 mission, which includes the ''Perseverance (rover), Perseverance'' rover; the Mars Science Laboratory mission, including the ''Curiosity (rover), Curiosity'' rover; the ''Mars Reconnaissance Orbiter''; the ''Juno (spacecraft), Juno'' spacecraft orbiting Jupiter; the ''Soil Moisture Active P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Remote Manipulator System
Canadarm or Canadarm1 (officially Shuttle Remote Manipulator System or SRMS, also SSRMS) is a series of robotic arms that were used on the Space Shuttle orbiters to deploy, manoeuvre, and capture payloads. After the Space Shuttle ''Columbia'' disaster, the Canadarm was always paired with the Orbiter Boom Sensor System (OBSS), which was used to inspect the exterior of the shuttle for damage to the thermal protection system. Development In 1969, Canada was invited by the National Aeronautics and Space Administration (NASA) to participate in the Space Shuttle program. At the time what that participation would entail had not yet been decided but a manipulator system was identified as an important component. Canadian company DSMA ATCON had developed a robot to load fuel into CANDU nuclear reactors; this robot attracted NASA's attention. In 1975, NASA and the Canadian National Research Council (NRC) signed a memorandum of understanding that Canada would develop and constru ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nanosat
A small satellite, miniaturized satellite, or smallsat is a satellite of low mass and size, usually under . While all such satellites can be referred to as "small", different classifications are used to categorize them based on mass. Satellites can be built small to reduce the large economic cost of launch vehicles and the costs associated with construction. Miniature satellites, especially in large numbers, may be more useful than fewer, larger ones for some purposes – for example, gathering of scientific data and radio relay. Technical challenges in the construction of small satellites may include the lack of sufficient power storage or of room for a propulsion system. Rationales One rationale for miniaturizing satellites is to reduce the cost; heavier satellites require larger rockets with greater thrust that also have greater cost to finance. In contrast, smaller and lighter satellites require smaller and cheaper launch vehicles and can sometimes be launched in mult ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Aeronautics And Space Administration
The National Aeronautics and Space Administration (NASA ) is an independent agency of the US federal government responsible for the United States's civil space program, aeronautics research and space research. Established in 1958, it succeeded the National Advisory Committee for Aeronautics (NACA) to give the American space development effort a distinct civilian orientation, emphasizing peaceful applications in space science. It has since led most of America's space exploration programs, including Project Mercury, Project Gemini, the 1968–1972 Apollo program missions, the Skylab space station, and the Space Shuttle. Currently, NASA supports the International Space Station (ISS) along with the Commercial Crew Program and oversees the development of the Orion spacecraft and the Space Launch System for the lunar Artemis program. NASA's science division is focused on better understanding Earth through the Earth Observing System; advancing heliophysics through the effor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Euler Buckling
Euler's critical load or Euler's buckling load is the compressive load at which a slender column will suddenly bend or buckle. It is given by the formula: P_ = \frac where *P_, Euler's critical load (longitudinal compression load on column), *E, Young's modulus of the column material, *I, minimum second moment of area of the cross section of the column (area moment of inertia), *L, unsupported length of column, *K, column effective length factor This formula was derived in 1744 by the Swiss mathematician Leonhard Euler. The column will remain straight for loads less than the critical load. The ''critical load'' is the greatest load that will not cause lateral deflection (buckling). For loads greater than the critical load, the column will deflect laterally. The critical load puts the column in a state of unstable equilibrium. A load beyond the critical load causes the column to fail by buckling. As the load is increased beyond the critical load the lateral deflections increas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gossamer Spacecraft
Gossamer most commonly refers to: * Fine spider silk used by spiderlings for ballooning or kiting * Gossamer (fabric), very light, sheer, gauze-like fabric Gossamer may also refer to: Technology * Gossamer Condor, the first human-powered aircraft capable of controlled and sustained flight * Gossamer Albatross, a human-powered aircraft built by American aeronautical engineer Dr. Paul B. MacCready's AeroVironment * The code name of the motherboard used in first-generation Apple G3 Macs Culture * The Gossamer Project (or Gossamer Archive), a large ''X-Files'' fan fiction archive * Gossamer (''Looney Tunes''), a character in the ''Looney Tunes'' cartoons * Gossamer, alias of two different DC Comics superheroes, Ayla Ranzz and Jay Nakamura Literature * ''Gossamer'' (novel), a 2006 novel by Lois Lowry * Gossamer, a 1995 short story by Stephen Baxter in his collection '' Vacuum Diagrams'' and ''The Hard SF Renaissance'' anthology Music * ''Gossamer'' (album), by Passion Pit * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
