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  2. Mud motor - Wikipedia

    en.wikipedia.org/wiki/Mud_motor

    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 ...

  3. Long-tail boat - Wikipedia

    en.wikipedia.org/wiki/Long-tail_boat

    Long-tail boats in Poda island, Krabi, Thailand. The long-tail boat ( Thai : เรือหางยาว , RTGS : ruea hang yao , [ 1 ] pronounced [rɯ̄ːa̯ hǎːŋ jāːw] ) is a type of watercraft native to Southeast Asia that uses a common automotive engine as a readily available and maintainable powerplant. [ 2 ]

  4. Outboard motor - Wikipedia

    en.wikipedia.org/wiki/Outboard_motor

    In Vietnam these outboards are called máy đuôi tôm (shrimp tail motor), which are smallish air-cooled or water-cooled gasoline, diesel or even modified automotive engines bolted to a welded steel tube frame, with another long steel tube up to 3 m long to hold an extended drive shaft driving a conventional propeller. The frame that holds the ...

  5. List of components of oil drilling rigs - Wikipedia

    en.wikipedia.org/wiki/List_of_components_of_oil...

    Suction line (#3) is an intake line for the mud pump to draw drilling fluid from the mud tanks. Swivel (#18) is the top end of the kelly that allows the rotation of the drill string without twisting the block. Traveling block (#11) is the moving end of the block and tackle. Together, they give a significant mechanical advantage for lifting.

  6. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  7. Screw-propelled vehicle - Wikipedia

    en.wikipedia.org/wiki/Screw-propelled_vehicle

    A screw-propelled vehicle A screw-propelled vehicle is a land or amphibious vehicle designed to cope with difficult terrain, such as snow, ice, mud, and swamp. Such vehicles are distinguished by being moved by the rotation of one or more auger-like cylinders fitted with a helical flange that engages with the medium through or over which the vehicle is moving. They have been called Archimedes ...

  8. Rooster tail - Wikipedia

    en.wikipedia.org/wiki/Rooster_tail

    Energetic volcanic eruptions can create rooster tail formations from their ejecta. They can form in relation to coronal loops near the Sun's surface. In gear shifting in motor vehicles, it is the relation between the coefficient of friction and the sliding speed of the clutch. Cars can throw rooster tails in their wake and loose materials under ...

  9. Oldsmobile Aerotech - Wikipedia

    en.wikipedia.org/wiki/Oldsmobile_Aerotech

    The long-tail version proved to be even more capable than its short-tail sibling, allowing Foyt to reach a top speed of 275 mph (443 km/h) in the flying mile after some practice runs. [ 1 ] Foyt set a new speed record with the long-tail version the next day, averaging 267.399 mph (430.337 km/h) after flying-mile runs in both directions of the ...

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