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  2. Airport dolly - Wikipedia

    en.wikipedia.org/wiki/Airport_dolly

    Dolly fleet management is an issue specific to the airport ground support industry. Dollies are not inexpensive consumable equipment like a hand trolley. Dollies are numerous (thousands) on a large airport apron.

  3. Semi-trailer aerodynamic device - Wikipedia

    en.wikipedia.org/wiki/Semi-trailer_aerodynamic...

    Semi-trailer aerodynamic devices are devices affixed to semi-trailers, for the purpose of reducing aerodynamic drag caused by air turbulence. The two major types of device in use are trailer skirts (or side skirts ), affixed to the underside of trailers, and trailer tails (or boat tails , or rear fairings ), affixed to the rear.

  4. Dolly (trailer) - Wikipedia

    en.wikipedia.org/wiki/Dolly_(trailer)

    Semi-trailer – 1 axle (2 wheels), without the front axle but have a landing gear. Large semi-trailer of truck size is designed for connection via the fifth wheel on the tractor unit or the semi-trailer truck. Small semi-trailer such as travel trailer and boat trailer is designed for connection via a tow hitch of a passenger vehicle. Either ...

  5. Semi-trailer - Wikipedia

    en.wikipedia.org/wiki/Semi-trailer

    A tractor unit pulling a semi-trailer A truck pulling a semitrailer using a trailer dolly. A semi-trailer is a trailer without a front axle. The combination of a semi-trailer and a tractor truck is called a semi-trailer truck (also known simply as a "semi-trailer", "tractor trailer", or "semi" in the United States). [1]

  6. Semi-trailer truck - Wikipedia

    en.wikipedia.org/wiki/Semi-trailer_truck

    Conventional style cab tractor A cab-over semi-tractor Tractor with an end-dump trailer A FAW semi-trailer truck in China A semi-trailer truck (also known by a wide variety of other terms – see below) is the combination of a tractor unit and one or more semi-trailers to carry freight. A semi-trailer attaches to the tractor with a type of hitch called a fifth wheel. Other terms There are a ...

  7. Air-start system - Wikipedia

    en.wikipedia.org/wiki/Air-start_system

    An air start system has three main components along with various safety components, namely the air start injector, the distributor and the air receivers. When the system is initiated, starting air from the receivers is distributed by the distributor unit to each respective air start valve according to the firing order of the engine’s cylinders.

  8. Tow hitch - Wikipedia

    en.wikipedia.org/wiki/Tow_hitch

    The trailer tongue (North America) or coupling (outside North America) slips over a trailer hitch ball attached to a receiver hitch mount or integral with the hitch. A larger, heavy-duty gooseneck ball size: 3 in (76.2 mm) is typically used for towing greater than 10,000 pounds (4.5 t), and this towing capacity falls outside of the scope of SAE ...

  9. Flatbed trolley - Wikipedia

    en.wikipedia.org/wiki/Flatbed_trolley

    A piano trolley or piano dolly is a two- or four-wheeled trolley featuring a stronger-than-usual frame. [4] They are typically measuring approximately 50 to 80 cm ( 19 + 5 ⁄ 8 to 31 + 1 ⁄ 2 in) long and are used by removals companies for moving pianos.