In what condition is the rated load of a sling effectively doubled when using a basket hitch?

A basket hitch allows a sling to effectively double its rated load capacity by distributing the weight evenly across both legs of the sling. When the legs of the sling are positioned within 5° of vertical, this configuration maximizes the load sharing between the two legs. This alignment ensures that the load is well-supported, minimizing the angle between the legs and reducing forces that could otherwise induce additional stress on the sling.

In this context, the factor of safety and load distribution become critical. If the legs are too far from vertical, such as at significant angles toward horizontal, the effective load capacity does not reach its maximum potential due to increased bending moments and reduced efficiency. Therefore, positioning the legs close to vertical is essential for maintaining the intended load capacity and ensuring a safe lifting operation.

The other conditions presented, such as legs at 90°, within 5° of horizontal, or both legs straight, do not provide the optimal angle for maximizing load capacity, as they either create excessive angles or fail to maintain the necessary support for equal load distribution.