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			Bobtail - 




Tractor operating without a trailer. Also refers to straight truck. 









 Bobtail

 Reference: Truck Writers of North America (TWNA)





	
	
Related Terms: Bobtail - straight truck | tractor | trailer | truck | trucking |
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Cabover - Truck or tractor design in which the cab sits over the engine on the chassis. Acronym: COE  Cabover Reference: Truck Writers of North America (TWNA)

Related Terms: Cabover - cab-over-engine | trucking |
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Cab-Over-Engine - Truck or tractor design in which the cab sits over the engine on the chassis. Acronym: COE  Cab-Over-Engine Reference: Truck Writers of North America (TWNA)

Related Terms: Cab-Over-Engine - cabover | trucking |
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Container (1) - Standard-sized rectangular box used to transport freight by ship, rail and highway. International shipping containers are 20 or 40 feet long, conform to International Standards Organization (ISO) standards and are designed to fit in ships' holds. Containers are transported on public roads atop a container chassis towed by a tractor. Reference: Truck Writers of North America (TWNA)

Related Terms: Container (1) - shipping container | trucking |
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Contractor Integrated Technical Information Service - A technical information service based on the integration of databases (contractor , subcontractor, and government ) contractually established and managed by the defense contractor to receive, maintain, and provide access to technical and support information on a defense system. [MIL-STD-974]ith permission from Joan Smith. Adapted from "An Introduction to CALS: Acronym: CITIS Reference: ECRC University of Scranton / Defense Logistics Agency

Related Terms: Contractor Integrated Technical Information Service - acquisition | contracting | data | data base | defense | information management | integration | military |
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Doubles - Combination of a tractor and two semitrailers connected in tandem by a converter dolly. Reference: Truck Writers of North America (TWNA)

Related Terms: Doubles - converter dolly | pintle hook | trucking | twins | twin trailers |
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Engineering Data - Any technical data (whether prepared by the Government, contractor, or vendor) relating to the specification, design, analysis, manufacture, acquisition, test, inspection or maintenance of items or services. Engineering data is comprised of all information that contains authoritative engineering definition or guidance on material, constituent items, equipment or systems practices, engineering Reference: ECRC University of Scranton / Defense Logistics Agency Department of Defense, United States Government "Military Handbook 59-B", 1993

Related Terms: Engineering Data - contractor | data | design | engineering | manufacturing | production | support | technical data | vendor |
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Fifth Wheel - Coupling device attached to a tractor or dolly which supports the front of a semitrailer and locks it to the tractor or dolly. The fifth wheel's center is designed to accept a trailer's kingpin, around which the trailer and tractor or dolly pivot in turns.  Fifth Wheel Reference: Truck Writers of North America (TWNA)

Related Terms: Fifth Wheel - sliding fifth wheel | trucking |
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Gross Combination Weight - Total weight of a loaded combination vehicle, such as a tractor-semitrailer or truck and full trailer(s). Acronym: GCW Reference: Truck Writers of North America (TWNA)

Related Terms: Gross Combination Weight - gross vehicle weight | trucking |
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Headache Rack - Heavy protective barrier mounted behind the tractor's cab. Designed to prevent "headaches" caused by load shifting forward from the trailer and crushing the cab. Reference: Truck Writers of North America (TWNA)

Related Terms: Headache Rack - trailer | truck | trucking |
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Interactive Access - The ability to access authorized portions of the source data maintained in contractor or Government systems via on-line telecommunications data transfers in real or near-real time using various types of queries. Reference: ECRC University of Scranton / Defense Logistics Agency Department of Defense, United States Government "Military Handbook 59-B, 1993

Related Terms: Interactive Access - data | data base | query language | security | telecommunications |
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Jackknife - To place the trailer at a very sharp angle to the tractor. Reference: Truck Writers of North America (TWNA)

Related Terms: Jackknife - trailer | truck | trucking |
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Jockey - Person who operates a yard tractor. Reference: Truck Writers of North America (TWNA)

Related Terms: Jockey - trucking | yard jockey | yard tractor |
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Kingpin Trailer - Anchor pin at the center of a semitrailer's upper coupler which is captured by the locking jaws of a tractor's fifth wheel to attach the tractor to the semitrailer. Reference: Truck Writers of North America (TWNA)

Related Terms: Kingpin Trailer - kingpin axle | trucking |
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Landing Gear (1) - Retracting legs which support the front of a semitrailer when it is not coupled to a tractor.  Landing Gear (1) Reference: Truck Writers of North America (TWNA)

Related Terms: Landing Gear (1) - trailer | trucking |
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Long Combination Vehicle - In general, vehicles longer than a standard doubles rig (tractor and two 28-foot semitrailers). Examples of LCVs which are permitted in some U.S. western states and eastern toll roads: Twin 48-foot trailers; triple 28-foot trailers. Acronym: LCV Reference: Truck Writers of North America (TWNA)

Related Terms: Long Combination Vehicle - trailer | trucking |
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Military Handbook 59 - The "DoD CALS Program Implementation Guide," is not a standard. It provides the acquisition manager and his staff, as well as defense contractors and government end users with a detailed explanation of the CALS program, its objectives and strategy, and how to develop and apply CALS requirements that meet the Acronym: MIL-HDBK-59 Reference: ECRC University of Scranton / Defense Logistics Agency Included with permission from: Education Working Group, US CALS/CE Industry Steering Group "Electronic Blue Book" , 1993

Related Terms: Military Handbook 59 - acquisition | continuous acquisition and life-cycle support | contracting | department of defense | logistics | military | military handbook | military specification |
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Mule - Special tractor used to move trailers around a terminal, warehouse, distribution center, etc. Reference: Truck Writers of North America (TWNA)

Related Terms: Mule - trucking | yard mule | yard tractor |
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Pigtail - Cable used to transmit electrical power from the tractor to the trailer. So named because it is coiled like a pig's tail. Reference: Truck Writers of North America (TWNA)

Related Terms: Pigtail - trailer | truck | trucking |
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Semitrailer (1) - Truck trailer supported at the rear by its own wheels and at the front by a fifth wheel mounted to a tractor or dolly. Reference: Truck Writers of North America (TWNA)

Related Terms: Semitrailer (1) - trailer | trucking |
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Shipping Container - Standard-sized rectangular box used to transport freight by ship, rail and highway. International shipping containers are 20 or 40 feet long, conform to International Standards Organization (ISO) standards and are designed to fit in ships' holds. Containers are transported on public roads atop a container chassis towed by a tractor. Reference: Truck Writers of North America (TWNA)

Related Terms: Shipping Container - container | trucking |
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Sliding Fifth Wheel - Fifth wheel mounted to a mechanism that allows it to be moved back and forth for the purpose of adjusting the distribution of weight on the tractor's axles. Also provides the capability to vary vehicle combination lengths.  Sliding Fifth Wheel Reference: Truck Writers of North America (TWNA)

Related Terms: Sliding Fifth Wheel - fifth wheel | trucking |
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System (1) - Specific suite of computer hardware and software. As used in the terms "Source System" and "Destination System," the term does not necessarily correspond one to one with "site" or "base" in that most prime contractor sites and DoD installations have more than one system. Reference: ECRC University of Scranton / Defense Logistics Agency Department of Defense, United States Government "Military Standard 1840-B" 1992

Related Terms: System (1) - computer | contracting | department of defense | hardware | software |
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Technical Information Systems - The generic term for the enterprise network of existing and augmented automated data processing systems used by government and contractors for management of technical information in support of the design, manufacture, and logistic processes for products such as weapon systems and related major equipment items. Reference: ECRC University of Scranton / Defense Logistics Agency Department of Defense, United States Government "Military Handbook 59-A" 1993

Related Terms: Technical Information Systems - business | data | design | enterprise | information management | manufacturing | network | system |
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Tractor (1) - Truck designed primarily to pull a semitrailer by means of a fifth wheel mounted over the rear axle(s). Sometimes called a truck tractor or highway tractor to differentiate from it from a farm tractor.  Tractor (1) Reference: Truck Writers of North America (TWNA)

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Tractor Trailer - Tractor and semitrailer combination.  Tractor Trailer Reference: Truck Writers of North America (TWNA)

Related Terms: Tractor Trailer - tractor | trailer | truck | trucking |
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Tri-Axle - Truck, tractor or trailer with three axles grouped together at the rear. Reference: Truck Writers of North America (TWNA)

Related Terms: Tri-Axle - axle | tridem | trucking |
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Tridem - Group of three axles on a truck, tractor or trailer. Tridems are most common on European semitrailers. Reference: Truck Writers of North America (TWNA)

Related Terms: Tridem - axle | tri-axle | trucking |
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Trucker - One who is in the business of operating a truck for freight transportation; a truck or tractor operator.  Trucker

Related Terms: Trucker - independent | independent trucker | owner-operator | tractor | truck | trucking |
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Twin Trailers - Combination of a tractor and two semitrailers connected in tandem by a converter dolly. Reference: Truck Writers of North America (TWNA)

Related Terms: Twin Trailers - converter dolly | doubles | pintle hook | trucking | twins |
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LogisticsWorld Acronyms: Twin Trailers - converter dolly | doubles | pintle hook | trucking | twins |
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Twins - Combination of a tractor and two semitrailers connected in tandem by a converter dolly. Reference: Truck Writers of North America (TWNA)

Related Terms: Twins - converter dolly | pintle hook | trucking | twin trailers |
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Upper Coupler - Load bearing surface on the underside of the front of a semitrailer. It rests on the fifth wheel of a tractor or dolly and has a downward-protruding kingpin which is captured by the locking jaws of the fifth wheel. Reference: Truck Writers of North America (TWNA)

Related Terms: Upper Coupler - fifth wheel | trucking |
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Walking Beam Suspension - Type of truck and tractor rear suspension consisting of two beams, one at each side of the chassis, which pivot in the center and connect at the front to one axle of a tandem and at the rear to the other axle. Reference: Truck Writers of North America (TWNA)

Related Terms: Walking Beam Suspension - truck | trucking |
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Warranties - Warranties are contractor commitments to repair or replace equipment found to be defective within a specified period. Warranties provide incentives for production of systems with high reliability and maintainability, and invoke cost penalties (direct and/or indirect) on the contractor if standards are not met. Reference: Air Force Institute of Technology, Graduate School of Acquisition and Logistics

Related Terms: Warranties - acquisition | integrated logistics support | logistics | military |
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Yard Jockey - Person who operates a yard tractor. Reference: Truck Writers of North America (TWNA)

Related Terms: Yard Jockey - trucking | yard mule | yard tractor |
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Yard Mule - Special tractor used to move trailers around a terminal, warehouse, distribution center, etc. Reference: Truck Writers of North America (TWNA)

Related Terms: Yard Mule - trucking | yard jockey | yard tractor |
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Yard Tractor - Special tractor used to move trailers around a terminal, warehouse, distribution center, etc. Reference: Truck Writers of North America (TWNA)

Related Terms: Yard Tractor - trucking | yard jockey | yard mule |
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Unless otherwise indicated, all entries in the LogisticsWorld Logistics Glossary are copyright 1997, Matthew D. Cox, logistics@logisticsworld.com.

 

WWW Virtual Library of Logistics
Ver 4, Sep, 1999, Matthew D. Cox, logistics@logisticsworld.com
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