Where should the majority of the weight of a load on a semi-trailer be placed?

The optimal placement of the majority of the weight of a load on a semi-trailer is directly over the fifth wheel. This positioning helps to maintain proper balance and stability of the trailer while in transit.

When the weight is centered over the fifth wheel, it ensures that the load is evenly distributed and that the trailer remains level. This balance is crucial for safe handling, as it helps to prevent excessive sway, which can lead to loss of control, particularly when navigating turns or when subjected to crosswinds. Properly distributing the load also aids in minimizing tire wear and enhances braking performance, as the weight directly over the axles allows for more effective stopping power.

Load distribution that deviates from this ideal placement can lead to uneven weight on the axles, potentially causing issues such as trailer sway, increased stopping distances, or even structural damage to the trailer itself. Thus, placing the majority of the weight directly over or slightly ahead of the fifth wheel is vital for safe operation and vehicle performance.