In sling load charts, the horizontal angle is measured between the top of the load and which component?

In sling load charts, the horizontal angle is measured between the top of the load and which component?

• A. The load itself
• B. The sling leg
• C. The shackle
• D. The drum

Answer: (B)

The horizontal angle is the angle between the top of the load and the sling leg. This angle is looked at in plan view and directly affects how much tension the sling leg must carry. As the leg spreads outward, the horizontal component of the lift increases the load on the sling and fittings, so the chart shows a reduced safe capacity for larger angles. When the leg is nearly vertical (small horizontal angle), tension is lower and the sling can carry more of the load. The other components (the drum or shackle) don’t define this angle—the reference is the sling leg relative to the top attachment of the load.

The horizontal angle is the angle between the top of the load and the sling leg. This angle is looked at in plan view and directly affects how much tension the sling leg must carry. As the leg spreads outward, the horizontal component of the lift increases the load on the sling and fittings, so the chart shows a reduced safe capacity for larger angles. When the leg is nearly vertical (small horizontal angle), tension is lower and the sling can carry more of the load. The other components (the drum or shackle) don’t define this angle—the reference is the sling leg relative to the top attachment of the load.