What term describes the angular relationship that must be aligned when routing a hoist line into a guiding sheave?

What term describes the angular relationship that must be aligned when routing a hoist line into a guiding sheave?

• A. Fleet angle
• B. Rope angle
• C. Azimuth
• D. Radial angle

Answer: (A)

Fleet angle is the angular relationship you must align as the hoist line enters a guiding sheave. It describes the angle between the rope’s direction entering the sheave and the centerline of the rope path (or crane structure) it follows. Keeping this angle properly aligned ensures the rope sits correctly in the sheave groove, distributes loading evenly, and minimizes side loading, wear, and binding as the rope changes direction. This term is the standard way to describe this specific alignment in rigging and hoisting. Other terms like azimuth refer to broad horizontal direction, while rope angle or radial angle aren’t the conventional terms used for this situation.

Fleet angle is the angular relationship you must align as the hoist line enters a guiding sheave. It describes the angle between the rope’s direction entering the sheave and the centerline of the rope path (or crane structure) it follows. Keeping this angle properly aligned ensures the rope sits correctly in the sheave groove, distributes loading evenly, and minimizes side loading, wear, and binding as the rope changes direction. This term is the standard way to describe this specific alignment in rigging and hoisting. Other terms like azimuth refer to broad horizontal direction, while rope angle or radial angle aren’t the conventional terms used for this situation.