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A mud motor (or drilling motor) is a progressive cavity positive displacement pump (PCPD) placed in the drill string to provide additional power to the bit while drilling. The PCPD pump uses drilling fluid (commonly referred to as drilling mud, or just mud) to create eccentric motion in the power section of the motor which is transferred as ...
Small gas or electric motors are being attached to allow for mountainboarding to be done on flat ground or to climb hills rather than just downhill. Many DIY electric mountainboard builders are developing new drivetrains for their boards with electric motors, rivaling the power of small motorcycles, which could become the norm.
A motorcycle fork is the portion of a motorcycle that holds the front wheel and allows one to steer. For handling, the front fork is the most critical part of a motorcycle. The combination of rake and trail determines how stable the motorcycle is. The 'fork' on a motorcycle consists of multiple components.
Organized in 1915, the International Motor Contest Association (IMCA) is the oldest racing sanctioning body in the US. IMCA introduced the "E-Mod" (or Economy Modified) in 1979. [ 25 ] It has become one of the most popular dirt racing classes due to its simple design, light-weight, high power, and ability to adapt to varying track conditions ...
The Guinness Book of World Records listed it in 2001 as the world's most expensive motorcycle. [8] Because of the bike's exotic design, it was displayed in The Art of the Motorcycle at the Guggenheim Museums in New York, Bilbao and Las Vegas. An example can also be seen at the Barber Vintage Motorsports Museum in Birmingham, Alabama, United States.
The well geometry therefore is less aggressive and the wellbore (wall of the well) is smoother than those drilled with a motor. This last benefit concerns geoscientists, because better measurements of the properties of the formation can be obtained, and the drillers, because the well casing or production string can be more easily run to the ...
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Although Simplex Manufacturing Corporation produced motorcycles for over 20 years, the last Simplex Automatics looked almost the same as the company's original 1935 Simplex Servi-Cycle motorcycle. Paul Treen would often visit the factory's tool shop and work with the engineers on new ideas himself, resulting in continuous improvements to ...