What is Mass in
Running Order?
TERRY OWEN looks at the way caravan and motorhome payloads are calculated and how this has changed over the years
What is Mass in Running Order?
By TERRY OWEN
Posted on 02 April 2018
It sounds quite straightforward – a caravan has a Mass in Running Order (MiRO), which is the basic weight straight from the factory. It also has a Maximum Technically Permissible Laden Mass (MTPLM), which is the maximum it can legally weigh on the road. The difference between the two is the User Payload – the amount of stuff you can add to the caravan yourself, either inside or out.
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