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2. 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.

3. These Are the Ski and Snowboard Racks the Pros Swear by - AOL

   www.aol.com/ski-snowboard-racks-pros-swear...

   Multi-Purpose Carrier. The Rhino Rack makes transporting your skis and snowboards easy and secure. Made from aluminum, it 's lightweight yet durable and has a powder-coated finish to resist ...

4. Car carrier trailer - Wikipedia

   en.wikipedia.org/wiki/Car_carrier_trailer

   To load vehicles on the top deck of a double-decker commercial trailer, the rear half of the deck can tilt and be lowered hydraulically, forming a drive-up ramp to the upper deck. The top deck is usually loaded first and off-loaded last since the presence of cars on the lower deck can make it impossible to lower the top deck ramp.

5. Relay valve - Wikipedia

   en.wikipedia.org/wiki/Relay_valve

   A relay valve is an air-operated valve typically used in air brake systems to remotely control the brakes at the rear of a heavy truck or semi-trailer in a tractor-trailer combination. Relay valves are necessary in heavy trucks in order to speed-up rear-brake application and release, since air takes longer to travel to the rear of the vehicle ...

6. Semi-trailer - Wikipedia

   en.wikipedia.org/wiki/Semi-trailer

   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] A large proportion of a semi-trailer's weight is supported by a tractor unit, or a detachable front-axle assembly known as a dolly, or the tail of another trailer ...

7. Scammell Mechanical Horse - Wikipedia

   en.wikipedia.org/wiki/Scammell_Mechanical_Horse

   The Scammell Townsman replaced the 3-ton Scarab. There was no provision for a 6-ton model; more conventional vehicles were used to take on the heavier role. The Townsman closely followed the Scarab in its basic design. The frame was of a welded construction and had integral coupling ramps fitted with Scammell Mechanical Horse automatic coupling.