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  2. Locking differential - Wikipedia

    en.wikipedia.org/wiki/Locking_differential

    Stepping down on this pedal locks the rear differential. The left lever engages the front axle , and the right one enables selection between high and low speed gearing. Some utility vehicles such as tow trucks , forklifts , tractors , and heavy equipment use locking differentials to maintain traction, especially when driving on soft, muddy, or ...

  3. Limited-slip differential - Wikipedia

    en.wikipedia.org/wiki/Limited-slip_differential

    In this work it is called Trq f for torque friction [9]). Trq d is the difference in torque delivered to the left and right wheel. The magnitude of Trq d comes from the slip-limiting mechanism in the differential and may be a function of input torque (as in the case of a gear differential), or the difference in the output speeds (as in the case ...

  4. Symmetrical All Wheel Drive - Wikipedia

    en.wikipedia.org/wiki/Symmetrical_All_Wheel_Drive

    Subaru XV Symmetrical AWD logo. The Symmetrical All-Wheel Drive (also known as Symmetrical AWD or SAWD) is a full-time four-wheel drive system developed by the Japanese automobile manufacturer Subaru. The system consists of a longitudinally mounted boxer engine coupled to a symmetrical drivetrain with equal length half-axles.

  5. Ship grounding - Wikipedia

    en.wikipedia.org/wiki/Ship_grounding

    Ship grounding or ship stranding is the impact of a ship on seabed or waterway side. [1] It may be intentional, as in beaching to land crew or cargo, and careening , for maintenance or repair, or unintentional, as in a marine accident.

  6. Subaru BRAT - Wikipedia

    en.wikipedia.org/wiki/Subaru_BRAT

    The Subaru BRAT (acronym for "Bi-drive Recreational All-terrain Transporter") is a light-duty, four-wheel drive [1] coupé utility, [2] version of the Subaru Leone. It was sold from 1978 until 1994, introduced following the concept of coupe utilities such as the Chevrolet El Camino and the Ford Ranchero .

  7. Portal axle - Wikipedia

    en.wikipedia.org/wiki/Portal_axle

    Comparison between normal and portal axles Pinzgauer portal axle. A portal axle (or portal gear lift) is an off-road vehicle suspension and drive technology where the axle tube or the half-shaft is offset from – usually above – the center of the wheel hub and where driving power is transferred to each wheel via a simple gearbox, built onto each hub. [1]

  8. Johnson Boat Works - Wikipedia

    en.wikipedia.org/wiki/Johnson_Boat_Works

    Johnson Boat Works was a builder and developer of racing sailboats of the scow design in White Bear Lake, Minnesota. It was founded in 1896, by John O. Johnson who had emigrated from Norway in 1893. After working with Gus Amundson [ who? ] for three years, Johnson started his own boat-building business in 1896.

  9. Caisson lock - Wikipedia

    en.wikipedia.org/wiki/Caisson_lock

    The caisson lock is a type of canal lock in which a narrowboat is floated into a sealed watertight box and raised or lowered between two different canal water levels. It was invented in the late 18th century as a solution to the problem posed by the excessive demand for water when conventional locks were used to raise and lower canal boats ...