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  • Gross combined weight rating

    serch.it?q=Gross-combined-weight-rating

    The gross combined weight rating or gross combination weight rating (GCWR), also referred to as the gross combination mass (GCM), gross train weight (GTW), or maximum authorised mass (MAM), is the maximum allowable combined mass of a road vehicle, the passengers and cargo in the tow vehicle, plus the mass of the trailer and cargo in the trailer. This rating is set by the vehicle manufacturer. The GCWR is a function of the torque output of the engine, the capacity and ratios of the transmission, the capacity of the driving axles and tires, the capacity of the radiator, and the ability of the chassis to withstand that powertrain torque. GCWR primarily includes the powertrain's capabilities. Any of the powertrain's components, or combinations of, may create the weakest link in the powertrain. Mechanically, the differential gear ratio is not necessarily a weak link, but rather a ratio of power reduction or increase to the wheels depending on the ratio. A differential ratio of 3.42:1 will cause the engine and transmission to work harder than if the ratio was 4.10:1 with the same amount of weight hauled or towed.

  • Dry weight

    serch.it?q=Dry-weight

    Dry weight is the weight of a vehicle without any consumables, passengers, or cargo. It is one of the two common weight measurements included in road vehicle specifications, the other one being curb weight. By definition, dry weight does not include any of the following: Gasoline, diesel or any other fuel Engine oil Coolant Brake fluid Power steering fluid Transmission fluid Washer fluidThe difference between dry weight and curb weight depends on many variables such as the capacity of the fuel tank. Over time, most domestic vehicle manufacturers have more commonly used the term 'shipping weight', which refers to the vehicle in as-built, no-option condition. This would include engine oil, coolant, brake fluid and at least some small quantity of fuel, as vehicles have traditionally been driven off the assembly line and these fluids were necessary to do so.

  • Gross vehicle weight rating

    serch.it?q=Gross-vehicle-weight-rating

    The gross vehicle weight rating (GVWR), or gross vehicle mass (GVM) is the maximum operating weight/mass of a vehicle as specified by the manufacturer including the vehicle's chassis, body, engine, engine fluids, fuel, accessories, driver, passengers and cargo but excluding that of any trailers. The term is used for motor vehicles and trains. The weight of a vehicle is influenced by passengers, cargo, even fuel level, so a number of terms are used to express the weight of a vehicle in a designated state. Gross combined weight rating (GCWR) refers to the total mass of a vehicle, including all trailers. GVWR and GCWR both describe a vehicle that is in operation and are used to specify weight limitations and restrictions. Curb weight describes a vehicle which is "parked at the curb" and excludes the weight of any occupants or cargo. Dry weight further excludes the weight of all consumables, such as fuel and oils. Gross trailer weight rating specifies the maximum weight of a trailer and the gross axle weight rating specifies the maximum weight on any particular axle.

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