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McCulloch Motors Corporation is an American manufacturer of chainsaws and other outdoor power tools. The company was founded in Milwaukee, Wisconsin, in 1943 by Robert Paxton McCulloch as a manufacturer of small two-stroke gasoline engines and introduced its first chainsaw in 1948, the Model 5-49. McCulloch and its brand are owned by Husqvarna.
Chainsaws can be modified to suit different use-cases. Pictured is a hedge trimmer attachment fixed to a chainsaw bar, with teeth that catch hedge branches. Different bar types are available: [citation needed] Laminated bars consist of different layers to reduce the weight of the bar. Solid bars are solid steel, intended for professional use.
Four-stroking is a condition of two-stroke engines where combustion occurs every four strokes or more, rather than every two. Though normal in some instances at idle, extremely high engine speeds, and when letting off the throttle, such firing is uneven, noisy and may, in cases of malfunction, damage the engine if allowed to continue unabated.
Husqvarna was founded near the town of Huskvarna in Sweden in 1689. [3] The company started out as a maker of muskets, and the Husqvarna logo still depicts a gun sight viewed from the end of the barrel. [3] [4] As with many motorcycle manufacturers, Husqvarna first began producing bicycles in the late 19th century.
[4] Today, spark arresters can be found as OEM or aftermarket components on many types of equipment, such as large agricultural machines, off highway vehicles (OHVs), and small engines ( chainsaws , string trimmers , leaf blowers , etc.).
A440 (also known as Stuttgart pitch [1]) is the musical pitch corresponding to an audio frequency of 440 Hz, which serves as a tuning standard for the musical note of A above middle C, or A 4 in scientific pitch notation. It is standardized by the International Organization for Standardization as ISO 16.
The Ranger L-440 (company designation 6-440C) are six-cylinder inline inverted air-cooled aero-engines produced by the Ranger Aircraft Engine Division of the Fairchild Engine and Airplane Corporation of Farmingdale, New York, United States. The engine was mainly produced for Fairchild's family of training aircraft in the mid-1930s.