When wind is directed toward the load, what effects can occur?

• A. It can swing the load and reduce capacity
• B. It has no effect
• C. It increases stability
• D. It speeds up lifting

Answer: (A)

Wind acting on a suspended load adds a horizontal force that makes the load swing like a pendulum. This sway means the rope isn’t vertical anymore, which increases dynamic forces in the hoisting system and the crane structure. Because the crane’s rated capacity assumes a fairly still air, vertical load, any sideways movement reduces the effective capacity and raises the risk of uncontrolled motion, collisions, or tipping. So, when wind is directed toward the load, you get load swing and a reduction in capacity. It does not improve stability, it does not speed up lifting, and there is a real effect to consider. In windy conditions, you’d typically derate capacity or pause lifting to prevent unsafe swing.