{"id":3422,"date":"2020-03-16T00:52:00","date_gmt":"2020-03-15T13:52:00","guid":{"rendered":"http:\/\/www.driverknowledgetests.com\/resources\/?p=3422"},"modified":"2020-02-05T12:59:31","modified_gmt":"2020-02-05T01:59:31","slug":"pig-trailer-vs-dog-trailer-vs-jinker-trailer-vs-dolly","status":"publish","type":"post","link":"https:\/\/www.driverknowledgetests.com\/resources\/pig-trailer-vs-dog-trailer-vs-jinker-trailer-vs-dolly\/","title":{"rendered":"Pig trailer vs dog trailer vs jinker trailer vs dolly"},"content":{"rendered":"\n

A dog trailer has an axle set at both the front and back, plus a drawbar to connect the trailer to a towing vehicle. The front axle of the dog trailer has a drawbar connection and this axle steers. This means that a dog trailer can stand alone without legs, as would be required for a semitrailer. Only the drawbar has a leg or wheel for support.<\/p>\n\n\n\n

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5-axle dog trailer<\/figcaption><\/figure>\n\n\n\n

A pig trailer has one axle set that is placed near the middle of the trailer. Most of the trailer’s weight is supported on this axle set as opposed to a semitrailer where some of the weight is supported on the fifth wheel. At the front, there is a drawbar which connects to the towing vehicle. The drawbar has a leg or wheel for support.<\/p>\n\n\n\n

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These boat trailers are effectively pig trailers as there’s only one axle set<\/figcaption><\/figure>\n\n\n\n
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This tandem axle trailer is a pig trailer. The majority of the weight is carried over the tandem axle, not the drawbar<\/figcaption><\/figure>\n\n\n\n

Pig trailers are easier to reverse than dog trailers as there’s only one articulation point (the towing connection) as opposed to a towing connection plus a fifth wheel.<\/p>\n\n\n\n

A jinker trailer is designed to carry longer loads. It consists of an axle set and platform or support with a connection to attach it to a prime mover. This connection can be anything from a short drawbar to a long pole, depending on the application. Longer jinker trailers are used to transport very long loads like wind turbine blades.<\/p>\n\n\n\n

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American logging truck carrying a jinker trailer, courtesy of Crispin Semmens<\/a><\/figcaption><\/figure>\n\n\n\n

A dolly provides an interface between a semitrailer behind and a drawbar connection in front. As you can see with the logging trailer below, the rear trailer requires a fifth wheel, but the towing vehicle only has a drawbar connection. The dolly has the drawbar, while the rear trailer’s fifth wheel sits on top of it.<\/p>\n\n\n\n

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The dolly sits on the right of this picture, connected to the towing vehicle. The fifth wheel at the top is supporting the logging semitrailer.<\/figcaption><\/figure>\n\n\n\n

Dollies are often used for shorter semitrailers that add capacity to a rigid heavy vehicle as required.<\/p>\n","protected":false},"excerpt":{"rendered":"

A dog trailer has an axle set at both the front and back, plus a drawbar to connect the trailer to a towing vehicle. The front axle of the dog trailer has a drawbar connection and this axle steers. This…<\/span><\/p>\n

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