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Comet 7-D
The Comet 7-cylinder radials were a family of air-cooled radial engines, designed and built by the Comet Engine Corporation at Madison, Wisconsin from around 1927. Design and development Comet designed the 7-cylinder radial series to take advantage of the boom in private aviation in the late 1920s; intending to replace the large number of relatively unreliable wartime surplus engines that flooded the market in the early 1920s. First produced by the Aircraft Engine Corporation of Oakland, California, new interests acquired the California company and the Comet Engine Corporation was formed under the sponsorship of Air Investors Inc., the Crocker First Company of San Francisco and the Gisholt Machine Company. Production transferred to workshops adjacent to the Gisholt Machine Company in Madison, which acted as production supervisor. The Comet radial was fairly standard with steel finned cylinders, cast light alloy cylinder heads and two valves per head. The valves are operated by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WikiProject Aircraft
A WikiProject, or Wikiproject, is a Wikimedia movement affinity group for contributors with shared goals. WikiProjects are prevalent within the largest wiki, Wikipedia, and exist to varying degrees within Wikimedia project, sister projects such as Wiktionary, Wikiquote, Wikidata, and Wikisource. They also exist in different languages, and translation of articles is a form of their collaboration. During the COVID-19 pandemic, CBS News noted the role of Wikipedia's WikiProject Medicine in maintaining the accuracy of articles related to the disease. Another WikiProject that has drawn attention is WikiProject Women Scientists, which was profiled by ''Smithsonian Magazine, Smithsonian'' for its efforts to improve coverage of women scientists which the profile noted had "helped increase the number of female scientists on Wikipedia from around 1,600 to over 5,000". On Wikipedia Some Wikipedia WikiProjects are substantial enough to engage in cooperative activities with outside organization ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maximum Safety M-3
In mathematical analysis, the maxima and minima (the respective plurals of maximum and minimum) of a function, known collectively as extrema (the plural of extremum), are the largest and smallest value of the function, either within a given range (the ''local'' or ''relative'' extrema), or on the entire domain (the ''global'' or ''absolute'' extrema). Pierre de Fermat was one of the first mathematicians to propose a general technique, adequality, for finding the maxima and minima of functions. As defined in set theory, the maximum and minimum of a set are the greatest and least elements in the set, respectively. Unbounded infinite sets, such as the set of real numbers, have no minimum or maximum. Definition A real-valued function ''f'' defined on a domain ''X'' has a global (or absolute) maximum point at ''x''∗, if for all ''x'' in ''X''. Similarly, the function has a global (or absolute) minimum point at ''x''∗, if for all ''x'' in ''X''. The value of the function at a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Travel Air 4-U
The Travel Air 2000/3000/4000 (originally, the Model A, Model B and Model BH were open-cockpit biplane aircraft produced in the United States in the late 1920s by the Travel Air Manufacturing Company. During the period from 1924–1929, Travel Air produced more aircraft than any other American manufacturer, including over 1,000 biplanes. While an exact number is almost impossible to ascertain due to the number of conversions and rebuilds, some estimates for Travel Air as a whole range from 1,200 to nearly 2,000 aircraft.Wilkinson, 28 February 2014, pp.? Design and development Design and development The Travel Air Model A was engineered chiefly by Lloyd Stearman, with input from Travel Air co-founders Walter Beech, Clyde Cessna, and Bill Snook and could trace its ancestry back to the Swallow New Swallow biplane. The Travel Air, however, replaced the New Swallow's wooden fuselage structure with a welded steel tube. An interim design, the Winstead Special, was developed by the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Towle WC Amphibion
The Towle WC, aka Towle TA-1, was a custom built aircraft for a 1929 round-the world flight. Design and development Thomas Towle was an engineer who had been involved with many early aircraft designs. Having just co-designed the Eastman-E2 Sea Rover, Towle was commissioned by Henry McCarroll to promote Detroit's aviation production capabilities. The WC was a flying boat with an aluminum hull. The strut braced parasol wing was fabric covered. Operational history The prototype WC flew as far as Brazil before engine reliability issues forced the cancellation of the round-the-world flight attempt. Variants * Towle TA-2 The Towle TA-2 was an amphibious aircraft based on the T owle WC built for a 1929 round-the world flight. Development Thomas Towle was an engineer that had been involved with many early aircraft designs. Having just co-designed the Eastman E-2 ... Was built as a successor to the WC model Specifications (Towle WC) References {{Towle Marine Aircraft ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Timm K-100 Collegiate
The Timm Collegiate was a series of American-built two-seat light aircraft of the late 1920s. Design and development Otto Timm founded the O.W. Timm Aircraft Corp in 1922 with its base at Glendale, California. The firm changed its name to the Timm Airplane Co in 1928. During 1928 Timm designed the Collegiate series of parasol-winged two-seat light aircraft fitted with fixed tailwheel undercarriage. The six examples built between 1928 and 1930 were powered by a variety of engines of between and During their lives, several were re-fitted with different powerplants."Timm aircraft." ''Aerofiles.'' Retrieved: March 29, 2012. Operational history During their operational lives, several of the six Collegiates were fitted with replacement powerplants, giving rise to new designation numbers. The aircraft ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thaden T-2
Thaden is a municipality in the district of Rendsburg-Eckernförde, in Schleswig-Holstein, Germany. Geography Thaden is located about 25 km southeast of Heide in a rural environment. North of the community runs the Kiel Canal The Kiel Canal (german: Nord-Ostsee-Kanal, literally "North- oEast alticSea canal", formerly known as the ) is a long freshwater canal in the Germany, German states of Germany, state of Schleswig-Holstein. The canal was finished in 1895, ..., about 11 km south of the federal highway 430 from Neumünster towards Meldorf and about 12 km southwest of the Federal Highway 23 from Hamburg to Heide. References Municipalities in Schleswig-Holstein Rendsburg-Eckernförde {{RendsburgEckernförde-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stearman C3 , a surname
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{{surname, Stearman ...
Stearman is a surname. Notable people with the name include: * Lloyd Stearman (1898–1975), American aviation pioneer * Richard Stearman (born 1987), English footballer * William Stearman (1813–1846) English cricketer * William L. Stearman (born 1922), American government official, aviator and author See also * Stearman Aircraft, a company founded by Lloyd Stearman ** Boeing-Stearman Model 75, a Stearman Aircraft biplane trainer commonly known eponymously as a Stearman *Sterman, a surname *Stermann Stermann is a surname. Notable people with the surname include: *Catherine Stermann (1949–1985), French actress *Dirk Stermann (born 1965), German comedian of the duo Stermann & Grissemann See also *Sterman Sterman is a surname. Notable people w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spartan C3-166
The Spartan C3 is an American three-seat open-cockpit utility biplane from the late 1920s. Design The C3s fuselage and wing struts were built up from welded chromium-molybdenum alloy steel tubes, faired with wood battens. It had two open cockpits each protected from the wind with generously sized shatterproof-glass windscreens, and which could accommodated three people, with two in the front cockpit. The wings on the prototype were built around spruce and plywood box beam spars that were replaced with solid spruce spars routed into I-beams on production examples. Ribs were built up from spruce and plywood, while on the C3-225, duraluminium sheet covered the leading edge of the wing to improve the aerodynamic form. The wings were braced with streamlined section steel wire. Both upper and lower wings used a Clark Y airfoil section, and had the same span and wing chord, with rounded wing tips. The wing was rigged without stagger, or washout and at a 0° angle of incid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sierra BLW-2
Sierra (Spanish for "mountain range" and " saw", from Latin '' serra'') may refer to the following: Places Mountains and mountain ranges * Sierra de Juárez, a mountain range in Baja California, Mexico * Sierra de las Nieves, a mountain range in Andalusia, Spain * Sierra Madre (other), various mountain ranges ** Sierra Madre (Philippines), a mountain range in the east of Luzon, Philippines * Sierra mountains (other) * Sierra Nevada, a mountain range in the U.S. states of California and Nevada * Sierra Nevada (Spain), a mountain range in Andalusia, Spain * Sierra de San Pedro Mártir, a mountain range in Baja California, Mexico * Sierra Maestra, a mountain range in Cuba Other places Africa * Sierra Leone, a country located on the coast of West Africa Asia * Sierra Bullones, Bohol, Philippines Europe * Sierra Nevada National Park (Spain), Andalusia, Spain * Sierra Nevada Observatory, Granada, Spain North America * High Sierra Trail, California, United States ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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