A single-axle trailer has an actual gross weight of 600 kg. What is the minimum possible vertical load?

In German traffic regulations, the vertical load of a trailer is the downward force that the trailer exerts on the towing vehicle's hitch. For a single-axle trailer, this vertical load typically should be about 4% of the trailer's total gross weight. This small downward force ensures the trailer is stable and improves handling without overloading the towing vehicle's axle.

In your case, with a trailer weighing 600 kg, 4% of 600 kg equals 24 kg, which is the minimum vertical load. Choosing this value helps maintain proper weight distribution and safe towing behavior. Higher percentages like 10% or 15% would usually be too heavy for normal trailers and could lead to stability problems or excessive stress on the towing vehicle.