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SpaceDev Streaker
The Streaker is a rocket invented by SpaceDev. It is designed to be a low-cost launch vehicle. History SpaceDev, the world's first commercial space exploration company, was founded in 1997 by Jim Benson, as a result of a merger between Integrated Space Systems of Southern California and a defunct publicly traded corporate shell. In August 1998 SpaceDev acquired all patents, intellectual property, test results, and documents that had been produced by the bankrupt American Rocket Company (AMROC). Some of these documents would later be used to create the SpaceDev Streaker. In April 2003, SpaceDev announced the creation of the Streaker as part of a propulsion program based on the hybrid motor of the SpaceShipOne, a vehicle created by Scaled Composites. SpaceDev also received an Air Force Research Laboratory contract to develop the SpaceDev Streaker Hybrid Upper Stage rocket, one of two used in the vehicle. The Streaker was expected to undergo first launch in 2007–08. Propulsion meth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SpaceDev
SpaceDev, a part of the "Space Systems Business" of Sierra Nevada Corporation, is prominent for its spaceflight and microsatellite work. It designed and built components for the hybrid rocket motors for Paul Allen's Tier One suborbital SpaceShipOne space program operated by Scaled Composites. It is also developing micro- and nano-satellites, a small expendable launch vehicle, the SpaceDev Streaker, and has designed a piloted suborbital and orbital spaceship of its own, the SpaceDev Dream Chaser, in collaboration with NASA. SpaceDev is based near San Diego in Poway, California. Its objective is to make routine commercial spaceflight possible and to help open space for all of humanity. Previously a publicly traded company (OTCBB:SPDV), on 20 October 2008 SpaceDev officials announced that the company would be acquired by Sierra Nevada Corporation, a privately owned company. The announced acquisition price was 38 million dollars. The role of SpaceDev will be melded into anoth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jim Benson
James William Benson (April 3, 1945 – October 10, 2008) was an American aerospace entrepreneur who founded SpaceDev, a commercial satellite and satellite component development company, and the Benson Space Company, a civilian spaceflight venture focused on commercial space tourism. Biography Benson was born and raised in Kansas City, Missouri, where he earned a Bachelor of Science degree in Geology from the University of Missouri–Kansas City. He spent 30 years associated with the computer field, spanning the era from the introduction of modern mainframe computers to the dominance of the computer industry by microcomputers. Benson's partner Hal Woodward invented modern full text computer indexing and searching in 1981 based on the Federal Acquisition Regulation – the search system was called FARA (FAR Automated), and Benson exploited the new field through companies he co-founded. Benson was active in the early days of Internet Relay Chat (IRC). In the early 1990s, he assembl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Rocket Company
Founded in 1985 by George A. Koopman, Bevin McKinney and Jim Bennett, veterans of Starstruck Inc., the American Rocket Company, or AMROC, was a California-based company that developed hybrid rocket motors. It had over 300 hybrid rocket motor test firings in its lifetime, ranging from 4.5 kN to 1.1 MN at the Air Force Astronautics Laboratory at Edwards Air Force Base (merged into the Phillips Laboratory) and NASA's Stennis Space Center's E1 test stand where it test fired the world's only successful 250,000 pound force (1.1 MN) thrust liquid oxygen/polybutadiene hybrid rocket motor. The company attempted a sea launch of its Dolphin rocket in 1984. After two early aborts the third attempt ended with a shutdown command after Dolphin reached 700 meters altitude with a 45° deviation from vertical due to a failure of a valve in the thrust vector control. The rocket was entirely privately funded. Its 5 October 1989 launch of the SET-1 sounding rocket was unsuccessful due t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SpaceShipOne
SpaceShipOne is an experimental air-launched rocket-powered aircraft with sub-orbital spaceflight capability at speeds of up to 3,000 ft/s (900 m/s, 3240 km/h), using a hybrid rocket motor. The design features a unique "feathering" atmospheric reentry system where the rear half of the wing and the twin tail booms folds 70 degrees upward along a hinge running the length of the wing; this increases drag while retaining stability. SpaceShipOne completed the first crewed private spaceflight in 2004. That same year, it won the US$10 million Ansari X Prize and was immediately retired from active service. Its mother ship was named " White Knight". Both craft were developed and flown by Mojave Aerospace Ventures, which was a joint venture between Paul Allen and Scaled Composites, Burt Rutan's aviation company. Allen provided the funding of approximately US$25 million. Rutan has indicated that ideas about the project began as early as 1994 and the full-time development cycl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air Force Research Laboratory
The Air Force Research Laboratory (AFRL) is a scientific research organization operated by the United States Air Force Materiel Command dedicated to leading the discovery, development, and integration of aerospace warfighting technologies, planning and executing the Air Force science and technology program, and providing warfighting capabilities to United States air, space, and cyberspace forces. It controls the entire Air Force science and technology research budget which was $2.4 billion in 2006. The Laboratory was formed at Wright-Patterson Air Force Base near Dayton, Ohio, on 31 October 1997 as a consolidation of four Air Force laboratory facilities (Wright, Phillips, Rome, and Armstrong) and the Air Force Office of Scientific Research under a unified command. The Laboratory is composed of eight technical directorates, one wing, and the Office of Scientific Research. Each technical directorate emphasizes a particular area of research within the AFRL mission which it s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HTPB
Hydroxyl-terminated polybutadiene (HTPB) is an oligomer of butadiene terminated at each end with a hydroxyl functional group. It reacts with isocyanates to form polyurethane polymers. HTPB is a translucent liquid with a color similar to wax paper and a viscosity similar to corn syrup. The properties vary because HTPB is a mixture rather than a pure compound, and it is manufactured to meet customers' specific requirements. A typical HTPB is R-45HTLO. This product consists of oligomeric units typically containing 40–50 butadiene molecules bonded together, with each end of the chain terminated with a hydroxyl Hgroup: R-45HTLO has a functionality of 2.4-2.6, which means that there is (approximately) one additional hydroxyl group located along the chain for every two oligomeric units. This provides side-to-side linkage for a stronger cured product. HTPB is usually cured by an addition reaction with di- or poly-isocyanate compounds. Uses Materials Production Polyurethanes prepare ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nitrous Oxide
Nitrous oxide (dinitrogen oxide or dinitrogen monoxide), commonly known as laughing gas, nitrous, or nos, is a chemical compound, an oxide of nitrogen with the formula . At room temperature, it is a colourless non-flammable gas, and has a slightly sweet scent and taste. At elevated temperatures, nitrous oxide is a powerful oxidiser similar to molecular oxygen. Nitrous oxide has significant medical uses, especially in surgery and dentistry, for its anaesthetic and pain-reducing effects. Its colloquial name, "laughing gas", coined by Humphry Davy, is due to the euphoric effects upon inhaling it, a property that has led to its recreational use as a dissociative anaesthetic. It is on the World Health Organization's List of Essential Medicines. It is also used as an oxidiser in rocket propellants, and in motor racing to increase the power output of engines. Nitrous oxide's atmospheric concentration reached 333 parts per billion (ppb) in 2020, increasing at a rate of abo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SpaceDev Dream Chaser
Dream Chaser is an American reusable lifting-body spaceplane being developed by Sierra Nevada Corporation (SNC) Space Systems. Originally intended as a crewed vehicle, the Dream Chaser Space System is set to be produced after the cargo variant, Dream Chaser Cargo System, is operational. The crewed variant is planned to carry up to seven people and cargo to and from low Earth orbit. The cargo Dream Chaser is designed to resupply the International Space Station with both pressurized and unpressurized cargo. It is intended to launch vertically on the Vulcan Centaur rocket and autonomously land horizontally on conventional runways. A proposed version to be operated by ESA would launch on an Arianespace vehicle. Spacecraft The Dream Chaser design is derived from NASA's HL-20 Personnel Launch System spaceplane concept, which in turn is descended from a series of test vehicles, including the X-20 Dyna-Soar, Northrop M2-F2, Northrop M2-F3, Northrop HL-10, Martin X-24A and X- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Low Earth Orbit
A low Earth orbit (LEO) is an orbit around Earth with a period of 128 minutes or less (making at least 11.25 orbits per day) and an eccentricity less than 0.25. Most of the artificial objects in outer space are in LEO, with an altitude never more than about one-third of the radius of Earth. The term ''LEO region'' is also used for the area of space below an altitude of (about one-third of Earth's radius). Objects in orbits that pass through this zone, even if they have an apogee further out or are sub-orbital, are carefully tracked since they present a collision risk to the many LEO satellites. All crewed space stations to date have been within LEO. From 1968 to 1972, the Apollo program's lunar missions sent humans beyond LEO. Since the end of the Apollo program, no human spaceflights have been beyond LEO. Defining characteristics A wide variety of sources define LEO in terms of altitude. The altitude of an object in an elliptic orbit can vary significantly along the orbit. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Poway, California
Poway () is a city in San Diego County, California, United States. The unincorporated community became a city on December 1, 1980. Poway's rural roots influenced its motto "The City in the Country". The city has a population of 49,701 as of 2019. Poway is considered part of San Diego's North County. History The Kumeyaay people lived in the area for centuries before the Spanish colonization of the region. Artifacts such as arrowheads, spear points, metates, grinding stones, and pottery found along the bed of Poway Creek all indicate an early Kumeyaay presence. Various pictographs adorn many of Poway's boulders, and modern dating techniques suggest these paintings date to the 16th century and earlier. The name "Poway" is a Kumeyaay term meaning "arrowhead" or "watering hole". European settlement In the late 18th century, the Mission San Diego de Alcalá kept cattle in the valley. Documents of Mission San Diego de Alcala record the name of the valley as "Paguay" as early as 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trailblazer (satellite)
Trailblazer was a technology demonstration satellite, which was to have been operated by the United States Air Force and the Missile Defense Agency. It was selected for launch under a "Jumpstart" contract, to demonstrate responsiveness, with the final payload being chosen less than a month ahead of the scheduled launch date, and was launched as the primary payload of the third Falcon 1, which failed just over two minutes after launch on 3 August 2008. Two previous Falcon 1 launches also failed to reach orbit, but the fourth succeeded although it only carried a dummy payload. It was originally built for a canceled MDA project, and was based on a SpaceDev MMB-100 satellite bus. It was launched from Omelek Island, Kwajalein Atoll at 03:34 UTC. Several other payloads were to be launched aboard the same launch vehicle, including two CubeSats for NASA (PRESat and NanoSail-D), and a space burial (Celestis-07) payload for Celestis, which would have remained attached to the launch vehic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
