CCM
CCM may refer to:
Biology and medicine
Computing and technology
Government
.17 CCM
The .17 CCM (Cooper Centerfire Magnum) is a necked down version of the .22 CCM. This cartridge was introduced in 1992 and was originally designed by Mike Hill. Dan Cooper (President of Cooper Arms) further refined the cartridge and chambering to put it into production in the Cooper Model 38 action.
The .17 CCM is designed specifically for varmint and small game hunting. Its major benefits are low noise, accuracy and minimal barrel temperature, which makes it a perfect cartridge for prairie dogs. It has an effective range of around 300 yards, but like any other .17 caliber it is sensitive to the wind out past 100 yards.
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References
CCM (cycle)
CCM was an initialism for Canada Cycle & Motor Co. Ltd. The company would eventually split into two separate entities both maintaining the CCM trademark, one maintaining bicycle manufacturing and the other, CCM (The Hockey Company), producing hockey equipment.
History
The formation of C.C.M. came at the same time as an American bicycle industry consolidation: "42 manufacturers formed the American Bicycle Company and soon afterwards announced plans to open a branch plant in Canada called the National Cycle Company." C.C.M. was established "when the operations of four major Canadian bicycle manufacturers amalgamated: H.A. Lozier, Massey-Harris, Goold, and Welland Vale Manufacturing." "The company then accounted for 85 per cent of Canadian cycle production."
Around 1899 many smaller bicycle makers went out of business, and C.C.M. soon became Canada's industry leader.
Russell Motor Car Company
In 1903, weakness in the bicycle market prompted C.C.M. to acquire the assets of Canadian Motors Ltd. (CML), a failed automobile producer. Tommy Russell, C.C.M.'s new general manager, saw an opportunity to diversify his company's product line.
Jet fuel
Jet fuel, aviation turbine fuel (ATF), or avtur, is a type of aviation fuel designed for use in aircraft powered by gas-turbine engines. It is colourless to straw-colored in appearance. The most commonly used fuels for commercial aviation are Jet A and Jet A-1, which are produced to a standardized international specification. The only other jet fuel commonly used in civilian turbine-engine powered aviation is Jet B, which is used for its enhanced cold-weather performance.
Jet fuel is a mixture of a large number of different hydrocarbons. The range of their sizes (molecular weights or carbon numbers) is restricted by the requirements for the product, for example, the freezing point or smoke point. Kerosene-type jet fuel (including Jet A and Jet A-1) has a carbon number distribution between about 8 and 16 (carbon atoms per molecule); wide-cut or naphtha-type jet fuel (including Jet B), between about 5 and 15.
History
Fuel for piston-engine powered aircraft (usually a high-octane gasoline known as avgas) has a low flash point to improve its ignition characteristics. Turbine engines can operate with a wide range of fuels, and jet-aircraft engines typically use fuels with higher flash points, which are less flammable and therefore safer to transport and handle.
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