Weight Information

1. Technically Permissible Maximum Laden Mass (TPMLM)

This is the absolute maximum weight your vehicle is allowed to be, including all passengers, luggage, and optional equipment. It’s a limit set by the manufacturer that you must never exceed. You can find your model’s specific TPMLM in its technical data.

Example of Technically Permissible Maximum Laden Mass: HIP Campers 4Family has a TPMLM of 4,200 kg.

2. Mass in running order (MRO)

The Mass in Running Order refers to the weight of your motorhome as it typically rolls off the production line, ready for use. This includes:

• The empty vehicle with standard equipment.
• The freshwater tank filled to 100% in driving mode (which is 20 liters, as specified by HIP Campers).
• A 100% full gas cylinder.
• A 90% full fuel tank.
• The driver, whose weight is legally set at 75 kg, regardless of their actual weight, according to EU law.

You can find the MRO for each model in our sales documents.

MRO Example: HIP Campers 4Family has a MRO of 3,050 kg

Important Note on MRO Tolerance: There’s a legally allowed tolerance of ±5% for the Mass in Running Order due to manufacturing processes. This means your motorhome’s actual MRO might be slightly higher or lower than the stated figure.

Example Calculation of MRO Tolerance: Let’s assume that Mass in running order according to sales documents is 3,050 kg. Then the legally permissible tolerance of is 3,050 kg * ±5% = ±152.50 kg, which means that the legally permissible range of mass in running order is 2,897.50 kg to 3,202.50 kg.

While these variations are possible, HIP Campers tries to minimize them, so deviations at the extreme ends of this range should be uncommon. We also weigh every vehicle at the end of the production line to ensure it meets the permissible tolerance.

3. Mass of the Passengers

For calculating total vehicle weight, the mass of passengers is standardized. Each approved passenger seat is assigned a weight of 75 kg, regardless of the actual passenger’s weight. Remember, the driver’s 75 kg is already included in the Mass in Running Order, so it’s not counted again here.

Example Calculation of Mass of the Passengers: For a motorhome with four approved seats[belts], the mass of the passengers would be 3 * 75 kg = 225 kg.

4. Mass of the Optional Equipment

Any optional equipment that is added to your motorhome from the factory also contributes to its weight. Information on the individual or package weights of these options can be found in our sales documents.

5. Actual Mass of the Vehicle

The Actual Mass of your vehicle is the sum of its Mass in Running Order and the Weight of all factory-fitted optional equipment:
Actual Mass = MRO + Factory-fitted optional equipment

You’ll find this information on your vehicle’s Certificate of Conformity (CoC). Keep in mind that since the MRO has a ±5% tolerance, the actual mass might also show a similar deviation from its stated nominal value.

Example of Actual Mass of the Vehicle: Assume you have added 150 kg worth of optional equipment. For a motorhome with MRO of 3,050 kg, the Actual Mass of the Vehicle would be 3,050 kg + 150 kg = 3,200 kg.

6. Pay-Mass (Payload)

The Pay-mass (also known as Payload) is the weight capacity remaining for your personal belongings, such as luggage, groceries, and anything else you load into the motorhome.

It is calculated by extracting MRO, passenger mass, and optional equipment from TPMLM:
Pay-Mass = Technically Permissible Maximum Laden Mass - Actual Mass - Mass of the Passengers

Example Calculation of Pay-mass: Let’s take the above figures – TPMLM is 4,500 kg, Actual Mass is 3,200 kg, Mass of passengers is 225 kg.

Then, Pay-Mass (aka Payload) = 4,500 kg - 3,200 kg - 225 kg = 1,075 kg.

7. Minimum Pay-Mass

EU regulations also require a Minimum pay-mass for motorhomes, ensuring you have enough capacity for essential items. This is calculated using the following formula:
Minimum pay-mass in kg ≥ 10 * (number of approved seats + overall length of the vehicle in meters)

Example Calculation of Minimum Pay-mass: For a motorhome with 4 approved seats[belts] and a length of 7.2 m, the minimum pay-mass is therefore 10 * (4 + 7.2) = 112 kg.

To ensure that the minimum pay-mass is maintained, there is a maximum combination of optional equipment that can be ordered for each vehicle model. In the above example with a minimum pay-mass of 112 kg, the total mass of optional equipment for a vehicle with four permitted seats and a MRO of 3,050 kg should not exceed 813 kg:

4,200 kg technically permissible maximum laden mass – 3,050 kg mass in running order – 3*75 kg mass of the passengers – 112 kg minimum pay-mass = 813 kg maximum permissible mass of optional equipment

In order to avoid such a situation, HIP Campers further reduces the maximum permissible weight of the total optional equipment that can be ordered on a model-specific basis. The limitation of optional equipment is intended to ensure that the minimum pay-mass, i.e. the legally prescribed free mass for baggage and retrofitted accessories, is actually available for the vehicle load capacity of the vehicles delivered by HIP Campers.