Distancia 5.° rda./ult.
English translation: Measurement between 5th wheel and rear axle
| 02:33 Apr 19, 2019 |
| Spanish to English translations [PRO] Bus/Financial - Transport / Transportation / Shipping | |||||||
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|  Selected response from: Helena Chavarria Spain Local time: 03:48 | ||||||
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| 4 | Measurement between 5th wheel and rear axle |
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| Discussion entries: 2 | |
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Answers
13 hrs confidence: 
Measurement between 5th wheel and rear axle Explanation: In some places, the call the 5th wheel a king pin Page 2 In addition to the overall 5th wheel length: the kingpin to rear axle length of the fifth-wheel trailer must be 40 feet or less for a fifth wheel with two or more axles, or, if there is only one axle, the kingpin to axle length may not exceed 38 feet. https://www.rvia.org/system/files/media/file/Maximum RV Leng... Page 23 Truck Tractor and 53' or shorter trailer - Maximum Width . . . . . . . . . 8 1/2 feet (41 feet max. - King pin to center of rear axle group) https://www.dot.state.pa.us/public/PubsForms/Publications/PU... The distance measured horizontally between the axis of the fifth-wheel king pin and any point at the front of the semi-trailer (B1) must not exceed 2.04 metres. http://www.transportoversize.eu/en/eu_directive/dimensions_/ The maximum distance measured between the axis of the fifth-wheel king pin of the semi-trailer and the rear part of the semi-trailer must not exceed 12.00m. https://www.iru.org/apps/infocentre-item-action?id=322&lang=... -------------------------------------------------- Note added at 13 hrs (2019-04-19 15:59:16 GMT) -------------------------------------------------- I've just discovered that's there a King Pin to Rear Axle law in California! The state of California requires all tractor trailer combinations to meet the King Pin to Rear Axle (KPRA) law. What does that mean to professional drivers? The center of the rear axle on all trailers must be at the 40 foot mark or shorter and must not weigh over 34,000 pounds on the trailer axles. https://www.donhummertrucking.com/blog/2016/11/14/learn-abou... -------------------------------------------------- Note added at 13 hrs (2019-04-19 16:03:16 GMT) -------------------------------------------------- (4) A semitrailer while being towed by a motortruck or truck tractor, if the kingpin-to-rearmost-axle (KPRA) distance of the semitrailer does not exceed 40 feet for semitrailers having two or more axles, or 38 feet for semitrailers having one axle. http://www.dot.ca.gov/trafficops/trucks/length.html The fifth-wheel coupling provides the link between a semi-trailer and the towing truck, tractor unit, leading trailer or dolly. The coupling consists of a kingpin, a 2-or-3 1⁄2-inch-diameter (50.8 or 88.9 mm) vertical steel pin protruding from the bottom of the front of the semi-trailer, and a horseshoe-shaped coupling device called a fifth wheel on the rear of the towing vehicle. https://en.wikipedia.org/wiki/Fifth-wheel_coupling |
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