In the hoist-to-hoist transfer problem, what is the D2 dimension in feet?

• A. 18 ft
• B. 14 ft
• C. 16 ft
• D. 20 ft

Answer: (A)

D2 is the horizontal spacing used in the hoist-to-hoist transfer geometry. It tells you how far the second hoist is positioned relative to the load center during the transfer, and that position directly affects how the load is balanced between the two hoists and what the sling angles will be.

In this problem, the diagram’s dimensions are set so that D2 comes out to 18 feet. That value keeps the two hook lines sharing the load in a balanced way and keeps the sling angles within safe, practical limits for a stable transfer. If D2 were smaller or larger, one hoist would bear more of the load and the sling angles could become too steep or too shallow, increasing the risk of instability or overloading a single hoist.