What is the maximum angle when using multiple slings in rings?

What is the maximum angle when using multiple slings in rings?

• A. 90 degrees
• B. 60 degrees
• C. 120 degrees
• D. 180 degrees

Answer: (C)

When you use more than one sling on a ring, the load is shared by several legs whose directions form angles with each other. The bigger those angles, the more each sling must carry to keep the load up, because the vertical support comes from the sum of the vertical components of all the sling tensions. There’s a practical limit to how far apart the legs can be spaced while still sharing the load safely and staying within the ratings of the slings and the ring. In rigging practice, the commonly accepted maximum angle between adjacent sling legs around a ring is 120 degrees. This spacing allows the load to be distributed without one leg carrying too much and without overstressing the hardware. If the legs were spread wider, tensions would climb, reducing lifting capacity and increasing the risk of failure.

When you use more than one sling on a ring, the load is shared by several legs whose directions form angles with each other. The bigger those angles, the more each sling must carry to keep the load up, because the vertical support comes from the sum of the vertical components of all the sling tensions. There’s a practical limit to how far apart the legs can be spaced while still sharing the load safely and staying within the ratings of the slings and the ring. In rigging practice, the commonly accepted maximum angle between adjacent sling legs around a ring is 120 degrees. This spacing allows the load to be distributed without one leg carrying too much and without overstressing the hardware. If the legs were spread wider, tensions would climb, reducing lifting capacity and increasing the risk of failure.