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Aerojet
Aerojet was an American rocket and missile propulsion manufacturer based primarily in Rancho Cordova, California, with divisions in Redmond, Washington, Orange and Gainesville in Virginia, and Camden, Arkansas. Aerojet was owned by GenCorp, Inc., In 2013, Aerojet was merged by GenCorp with the former Pratt & Whitney Rocketdyne to form Aerojet Rocketdyne. History Aerojet developed from a 1936 meeting hosted by Theodore von Kármán at his home. Joining von Kármán, who was at the time director of Guggenheim Aeronautical Laboratory at the California Institute of Technology, were a number of Caltech professors and students, including rocket scientist and astrophysicist Fritz Zwicky and explosives expert Jack Parsons, all of whom were interested in the topic of spaceflight. The group continued to occasionally meet, but its activities were limited to discussions rather than experimentation. Their first design was tested on August 16, 1941, consisting of a small cylindrical s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aerojet Rocketdyne
Aerojet Rocketdyne is a subsidiary of American Arms industry, defense company L3Harris that manufactures rocket, Hypersonic flight, hypersonic, and electric propulsive systems for space, defense, civil and commercial applications. Aerojet traces its origins to the General Tire and Rubber Company (later renamed GenCorp, Inc. as it diversified) established in 1915, while Rocketdyne was created as a division of North American Aviation in 1955. Aerojet Rocketdyne was formed in 2013 when Aerojet and Pratt & Whitney Rocketdyne were merged, following the latter's acquisition by GenCorp, Inc. from Pratt & Whitney. Aerojet Rocketdyne was acquired by L3Harris in July 2023 for $4.7 billion. History Background: Aerojet Several decades after it began manufacturing rubber products, General Tire & Rubber diversified into broadcasting and aeronautics. In the 1940s, the Aerojet company began experimenting with various rocket designs. For a solid-fuel rocket, they needed binders, and tur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jack Parsons (rocket Engineer)
John Whiteside Parsons (born Marvel Whiteside Parsons; October 2, 1914 – June 17, 1952) was an American rocket engineer, chemist, and Thelemite occultist. Parsons was one of the principal founders of both the Jet Propulsion Laboratory (JPL) and Aerojet. He invented the first rocket engine to use a castable, composite rocket propellant, and pioneered the advancement of both liquid-fuel and solid-fuel rockets. Parsons was raised in Pasadena, California. He began amateur rocket experiments with school friend Edward Forman in 1928. Parsons was admitted to Stanford University but left before graduating due to financial hardship during the Great Depression. In 1934, Parsons, Forman, and Frank Malina formed the Caltech-affiliated Guggenheim Aeronautical Laboratory (GALCIT) Rocket Research Group, with support by GALCIT chairman Theodore von Kármán. The group worked on Jet-Assisted Take Off (JATO) for the U.S. military, and founded Aerojet in 1942 to develop and sell JATO ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aerobee Rocket
The Aerobee rocket was one of the United States' most produced and productive sounding rockets. Developed by the Aerojet Corporation, the Aerobee was designed to combine the altitude and launching capability of the V-2 with the cost effectiveness and mass production of the WAC Corporal. More than 1000 Aerobees were launched between 1947 and 1985, returning vast amounts of astronomical, physical, aeronomical, and biomedical data. Development Research using V-2 rockets after World War II produced valuable results concerning the nature of cosmic rays, the solar spectrum, and the distribution of atmospheric ozone. However, the limited supply and the expense of assembling and firing the V-2 rockets, as well as the small payload capacity of the first purpose-built sounding rocket, the WAC Corporal, created demand for a low cost sounding rocket to be used for scientific research. An Applied Physics Laboratory (APL) effort led by James Van Allen led to a contract presented 17 May 1946 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
General Tire
Continental Tire the Americas, LLC, d.b.a. General Tire, is an American manufacturer of tires for motor vehicles, and semi trucks. Founded in 1915 in Akron, Ohio by William Francis O'Neil, Winfred E. Fouse, Charles J. Jahant, Robert Iredell, and H.B. Pushee as The General Tire & Rubber Company using funding from Michael O'Neil, William Francis O'Neills' father, who owned Akron's O'Neil's Department Store. The company later diversified by 1984 into a conglomerate ( GenCorp, Inc.) with holdings in tire manufacturing (General Tire, Inc.), rubber compounds (DiversiTech General), rocketry and aeronautics (Aerojet), and broadcasting ( RKO General). The company's tire division was sold to Germany's Continental AG in 1987, becoming ''Continental General Tire Corp.'' before its reincorporation again to its current name. The compounds division was spun off & became OMNOVA Solutions Inc. The rocketry and aeronautics business was kept and expanded, and after a couple company name change ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pratt & Whitney Rocketdyne
Pratt & Whitney Rocketdyne (PWR) was an American company that designed and produced rocket engines that use liquid rocket propellants, liquid propellants. It was a division of Pratt & Whitney, a fully owned subsidiary of United Technologies Corporation. It was headquartered in Canoga Park, California, Canoga Park, Los Angeles, California. In 2013, the company was sold to GenCorp, GenCorp,Inc., becoming part of Aerojet Rocketdyne. History Pratt & Whitney Rocketdyne was formed in 2005 when Pratt & Whitney Space Propulsion and Boeing Rocketdyne, Rocketdyne Propulsion & Power were merged, following the latter's acquisition from Boeing by United Technologies Corporation. Boeing retained the 2,800 acre Rocketdyne Santa Susana Field Laboratory property above Canoga Park while a majority of the engineering and design continued to be carried out at the Pratt & Whitney Space Propulsion facility located on Beeline Highway outside West Palm Beach, Florida. In July 2012, United Technologies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Azusa, California
Azusa ( Tongva: ''Azuksa'', meaning "skunk") is a city in the San Gabriel Valley region of Los Angeles County, California, United States, at the foot of the San Gabriel Mountains and located east of downtown Los Angeles. Its population was 50,000 in 2020, an increase from 46,361 at the 2010 census. Azusa is located along historic Route 66, which passes through the city on Foothill Boulevard and Alosta Avenue. Azusa is bordered by the San Gabriel Mountains range to the north, Irwindale to the west, the unincorporated community of Vincent to the southwest, Glendora and the unincorporated community of Citrus to the east, and Covina to the south. History The name "Azusa" appears to have been derived from the Tongva place name Asuksa-nga, meaning "skunk place," with asuksa meaning skunk and -nga denoting place. The first human settlements in the area date back to approximately 6000 BC. The Takic people moved into the area and the Tongva people (''Gabrieleño'' Indian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
JATO
JATO (acronym for jet-assisted take-off) is a type of assisted take-off for helping overloaded aircraft into the air by providing additional thrust in the form of small rockets. The term ''JATO'' is used interchangeably with the (more specific) term RATO, for ''rocket-assisted take-off'' (or, in Royal Air Force, RAF parlance, RATOG, for ''rocket-assisted take-off gear''). Early experiments and World War II In 1927 the Soviet research and development laboratory Gas Dynamics Laboratory developed solid-propellant rockets to assist aircraft take-off and in 1931 the world's first successful use of rockets to assist take-off of aircraft were carried out on a :ru:У-1, U-1, the Soviet Union military aircraft designation systems, Soviet designation for a Avro 504 trainer, which achieved about one hundred successful assisted takeoffs. Successful assisted takeoffs were also achieved on the Tupolev TB-1. and Tupolev TB-3 Heavy Bombers. The official test of the Tupolev TB-1 in 1933 shorten ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fritz Zwicky
Fritz Zwicky (; ; February 14, 1898 – February 8, 1974) was a Swiss astronomer. He worked most of his life at the California Institute of Technology in the United States of America, where he made many important contributions in theoretical and observational astronomy. In 1933, Zwicky was the first to use the virial theorem to postulate the existence of unseen dark matter, describing it as "'". From p 125: ''"Um, wie beobachtet, einen mittleren Dopplereffekt von 1000 km/sek oder mehr zu erhalten, müsste also die mittlere Dichte im Comasystem mindestens 400 mal grösser sein als die auf Grund von Beobachtungen an leuchtender Materie abgeleitete. Falls sich dies bewahrheiten sollte, würde sich also das überraschende Resultat ergeben, dass dunkle Materie in sehr viel grösserer Dichte vorhanden ist als leuchtende Materie."'' (In order to obtain an average Doppler effect of 1000 km/s or more, as observed, the average density in the Coma system would thus have to be at least 40 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sounding Rocket
A sounding rocket or rocketsonde, sometimes called a research rocket or a suborbital rocket, is an instrument-carrying rocket designed to take measurements and perform scientific experiments during its sub-orbital flight. The rockets are often used to launch instruments from above the surface of the Earth, the altitude generally between weather balloons and satellites; the maximum altitude for balloons is about and the minimum for satellites is approximately . Due to their suborbital flight profile, sounding rockets are often much simpler than their counterparts built for orbital flight. Certain sounding rockets have an apogee between , such as the Black Brant X and XII, which is the maximum apogee of their class. For certain purposes, sounding rockets may be flown to altitudes as high as to allow observing times of around 40 minutes to provide geophysical observations of the magnetosphere, ionosphere, thermosphere, and mesosphere. Etymology The origin of the term comes fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Josephine De Karman
Josephine (Pipö) de Karman was the sister and life-partner of Theodore von Kármán. She is remembered as the benefactor of a foundation for art students. Born in Budapest, Josephine was the younger sister of four brothers: Elemer, Feri, Tódor, and Miklos.Theodore von Kármán with Lee Edson (1967) ''The Wind and Beyond'', Little, Brown and Company She and her mother joined Theodore when he became director of the aerodynamics laboratory in Aachen, Germany. In 1925, they moved to their new home at Maastrichterlaan 11, in nearby Vaals, the Netherlands. Our home in Vaals was similar to my father’s home in Buda. It had a huge high-ceilinged salon, a library, and numerous guest rooms. It was big, comfortable and altogether amiable. We eventually hired a Hungarian cook who became our most prized possession. My mother and my sister easily took over the organization of my social life, leaving me free for intellectual pursuits. … On weekends we threw open our home to students, assi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rancho Cordova, California
Rancho Cordova is a city in Sacramento County, California, United States. Incorporated in 2003, it is part of the Sacramento Metropolitan Area. The population was 79,332 at the 2020 census. In 2010 and 2019, Rancho Cordova received the All-America City Award. History Originally called Mayhew's Crossing and Hangtown Crossing (c. 1855) during the Gold Rush era, the area was renamed Mayhew Station and Mills Station (c. 1900), respectively. The city itself was named for the Cordova Vineyard, which was located in the center of the Rancho Rio de los Americanos land grant. Other names of the town included Cordova Vineyards and Cordova Village, before it was officially named Rancho Cordova when a post office was established in the community in 1955. In the Gold Rush era of mid-19th-century California, placer mining took place around Rancho Cordova, and some traces of it can still be found. The elevation of the generally level terrain is approximately above mean sea level. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
