4 Star Other models
1 model in this series
4 Star – EU category O3 trailer built in 1990: 7,300 kg gross weight, 1,800 kg unladen weight, 7,900 mm length, 6,350 mm axle spacing, 100 km/h top speed
With a gross weight of 7,300 kg, this trailer falls into EU category O3; the register only carries the generic English word for trailer as the model designation, so attention turns to the design itself.
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Gross weight stands at 7,300 kg and unladen weight at 1,800 kg, giving a payload of 5,500 kg – a high share for this weight class, pointing to a light build such as a tipper or open transport trailer. At a length of 7,900 mm and an axle spacing of 6,350 mm the axles sit far apart, suggesting a two-axle design with settled road behaviour. The permitted top speed is 100 km/h.
Trailers of this weight class are therefore fitted with an air brake system rather than an overrun brake, since the latter is not permitted above roughly 3.5 tonnes. The tow vehicle would be a lorry requiring licence category C1E or CE, depending on its own gross weight.
On a trailer built in 1990, what counts above all is rust at the frame, axles and drawbar, the condition of the air brake system including its lines and brake cylinders, the function of the lighting and electrical plug, and the tyres and rims. Given the age, it is also worth checking whether the brake system still meets current inspection standards or has been retrofitted. Given the 1990 build year, it is also worth looking for earlier repairs to the drawbar, which would not be unusual on such an old vehicle.
Sources: SpecCodex-Register: Kennwerte des Modells 4 Star
Models
Trailer in 3D section
Turn the model, look inside and click an assembly — each one is explained.
