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Harper Aircraft Manufacturing Company
The Harper Aircraft Manufacturing Company, also known as Harper Aircraft Company was a manufacturer of airplanes in the early 1930s.Bell, R.W.. "The Harper Aircraft Manufacturing Company, Inc.." Bedford Historical Society. N.p., n.d. Web. 19 June 2010. . Jack. L. Harper was the company president and founder.Air commerce bulletin, United States. Bureau of Air Commerce, United States. Civil Aeronautics Authority,U.S. G.P.O., 1933, p. 103 The Harper Aircraft Company was located in Bedford, Ohio. The Harper Aircraft Company built a small monoplane A monoplane is a fixed-wing aircraft configuration with a single mainplane, in contrast to a biplane or other types of multiplanes, which have multiple planes. A monoplane has inherently the highest efficiency and lowest drag of any wing confi ... powered by a 35 hp Szekely three-cylinder engine. The company also built the " Roberts Special," powered by a 65-horsepower LeBlond engine, it was a standard Harper airplane with a special v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bedford, Ohio
Bedford is a city in Cuyahoga County, Ohio, United States located to the east of Cleveland. The population was 13,074 at the 2010 census. It is an eastern first ring suburb of Cleveland. Geography Bedford is located at . It is a first ring suburb to the southeast of Cleveland. The city is bounded by Maple Heights to the north and west, Walton Hills and Oakwood to the south, and Bedford Heights to the east. According to the 2010 census, the city has a total area of , of which (or 99.07%) is land and (or 0.93%) is water. The boundaries of the city of Bedford include part of the Bedford Reservation. The reservation includes Tinker's Creek, which flows through a gorge that has been listed as a National Natural Landmark. The Great Falls of Tinker's Creek are within the city limits of Bedford. History The area that is now Bedford and northeastern Ohio was originally inhabited by Native Americans as early as 11,000 years ago. By 1662 the area had become a part of the Connect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monoplane
A monoplane is a fixed-wing aircraft configuration with a single mainplane, in contrast to a biplane or other types of multiplanes, which have multiple planes. A monoplane has inherently the highest efficiency and lowest drag of any wing configuration and is the simplest to build. However, during the early years of flight, these advantages were offset by its greater weight and lower manoeuvrability, making it relatively rare until the 1930s. Since then, the monoplane has been the most common form for a fixed-wing aircraft. Characteristics Support and weight The inherent efficiency of the monoplane is best achieved in the cantilever wing, which carries all structural forces internally. However, to fly at practical speeds the wing must be made thin, which requires a heavy structure to make it strong and stiff enough. External bracing can be used to improve structural efficiency, reducing weight and cost. For a wing of a given size, the weight reduction allows it to fly slower a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Szekely Aircraft Engine
Szekely aircraft engines were three-cylinder radial engines built in Holland, Michigan in the 1920s and 30s. They were used to power small aircraft such as the Rearwin Junior, Taylor H-2 and American Eagle Eaglet. Often criticized for reliability issues and design flaws, many were replaced with better engines in their original airframes. Few examples still exist but a museum quality example is on display in the Holland Museum in Holland, Michigan. Variants ''Data from:''Jane's all the World's Aircraft 1931 ;SR-3 O:Overhead valve combustion chamber, compression ratio 4.6:1, at 1,750 rpm. ;SR-3 L:Side-valve combustion chamber, compression ratio 5:1, at 1,750 rpm. Applications *American Eagle Eaglet *Buhl Bull Pup The Buhl LA-1 Bull Pup was a light sports airplane developed in the United States in 1930. It was a mid-wing wire-braced monoplane with fixed tailskid undercarriage and an open cockpit for the pilot. Buhl developed the Bull Pup as a cheap aircra ... * Curtiss ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roberts Special
Roberts may refer to: People * Roberts (given name), a Latvian masculine given name * Roberts (surname), a popular surname, especially among the Welsh Places * Roberts (crater), a lunar impact crater on the far side of the Moon ;United States * Roberts, Idaho * Roberts, Illinois * Roberts, Indiana * Roberts, West Virginia * Roberts, Wisconsin * Roberts County, South Dakota * Roberts County, Texas * Mount Roberts (New Hampshire), a summit in the Ossipee Mountains Facilities and structures * The old name of Brandeis/Roberts (MBTA station) * Roberts Stadium (other) Other uses * Roberts class monitor, a class of British warship * USS ''Samuel B. Roberts'' (FFG-58), a U.S. Navy frigate * Roberts Cycles, a cycle manufacturer (also known as Chas. Roberts) * Roberts Radio, a radio manufacturer * .257 Roberts, a medium-powered .25 caliber cartridge * Roberts (company), a Swedish soft drinks manufacturer See also * * * Strebor, a lock manufacturer (Roberts spelled ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leblond Engines
History Makino was established in 1937 by Tsunezo Makino in Japan, developing Japan's first numerically controlled (NC) milling machine in 1958 and Japan's first machining centre in 1966. The North American branch of Makino was formed through the 1981 merger of the R. K. LeBlond Machine Tool Company of Cincinnati and the Makino Milling Machine Company of Japan. Resulting from the merger was the formation of what was then called "LeBlond Makino Machine Tool Company". In 1996, LeBlond Makino became Makino, and in 1997 LeBlond Lathe Ltd. was formed as a parts and servicing subsidiary. Innovations In 1984, Makino introduced the first commercial high-speed spindle for milling. In 1990, Makino introduced Geometric Intelligence, the first servo-control software tailored to high-speed machining, and Flush Fine machining, a method for cutting hardened materials. The company developed the first drop-tank wire EDM EDM or E-DM may refer to: Music * Electronic dance music * Early D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
