Which configuration yields 18,750 lbs?

Which configuration yields 18,750 lbs?

• A. 4 x Large Clevis
• B. 2 x Small Clevis
• C. 3 x 25K Sling Leg
• D. 1 x 10K Sling Leg

Answer: (C)

The important idea here is that the load rating of a sling system with multiple legs is not simply additive; the actual capacity is reduced by how the legs share the load through the apex and the angles involved. In this setup, using three sling legs, each rated at 25,000 lbs, interacts with the geometry in such a way that the effective lifting capacity is derated to 18,750 lbs. That derating comes from how the load is distributed among the legs and through the connection points, which limits the total safe load more than a straightforward sum would. So three 25K sling legs in this particular configuration produce 18,750 lbs of safe lift, whereas other options would either rely on different hardware ratings or use fewer legs, resulting in a different (and typically lower) capacity.

The important idea here is that the load rating of a sling system with multiple legs is not simply additive; the actual capacity is reduced by how the legs share the load through the apex and the angles involved. In this setup, using three sling legs, each rated at 25,000 lbs, interacts with the geometry in such a way that the effective lifting capacity is derated to 18,750 lbs. That derating comes from how the load is distributed among the legs and through the connection points, which limits the total safe load more than a straightforward sum would.

So three 25K sling legs in this particular configuration produce 18,750 lbs of safe lift, whereas other options would either rely on different hardware ratings or use fewer legs, resulting in a different (and typically lower) capacity.