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The Mobile Caravan & Vehicle Weighing Experts
(GVM)
Gross Vehicle Mass is the maximum total mass of a fully loaded motor vehicle as specified by the vehicle manufacturer.
GVM
(ATM)
Aggregate Trailer Mass is the total mass of the trailer when carrying the maximum load recommended by the manufacturer. The ATM is generally measured with the caravan unhitched from your towing vehicle and resting on its jockey wheel.
ATM
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(GCM)
Gross Combination Mass is the maximum mass set by your tow vehicle's manufacturer and refers to the maximum combined mass of your loaded tow vehicle and your loaded caravan hitched together.
GCM
(GTM)
Gross Trailer Mass is the maximum mass recommeded by the manufacturer of your fully loaded caravan when it is hitched to your tow vehicle.
GTM
(TBM)
Tow ball mass (or tow ball load) is the maximum mass allowed to be put on the tow ball of the towing vehicle. As a rule, the tow ball weight should be between 6 and 10% of the ATM.
TBM
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PAYLOAD
Think of Payload as your available carrying capacity - how much stuff you can load into it
VEHICLE PAYLOAD = GVM – Tare Weight
CARAVAN PAYLOAD = ATM – Tare Weight
MAXIMUM PAYLOAD