What happens to a crane's stability when the load radius increases?

When the load radius of a crane increases, its stability decreases. A crane's stability relies heavily on its center of gravity and the load's position. As the load radius increases, the load moves further away from the crane's center of rotation, which can shift the center of gravity closer to or even beyond the tipping point, making the crane more prone to tipping over.

To visualize this, consider the crane's base and its ability to support the weight based on how far the load extends. With a greater load radius, the leverage exerted on the crane increases, leading to a lower factor of safety. Therefore, it's crucial for operators to monitor the load radius carefully to ensure that it remains within safe operational limits, reinforcing that increased load radius results in decreased stability.