How should I inspect and repair Freedom's two-part topping lift?

Freedom's topping lift is in two sections, apparently joined by two bowlines. The rope looks about 6 mm thick, which seems rather thin to me. Is this likely to be an old repair, and should I replace the whole thing?

Boat type: sailing yacht. Topics: Running rigging, Rope inspection, Boom support.

Answer

Two sections joined by interlocking bowlines do not necessarily mean Freedom's topping lift has failed before, but check the join and both lengths before trusting them to support the boom. A 6 mm line can suit a modest cruising yacht; its material, condition, fittings and working load matter more than how it looks.

Check the topping lift layout

First, support the boom independently with a sound main halyard secured near the boom end. Keep everyone clear of the space beneath it while you work. Ease the mainsheet and kicker enough to stop them pulling down against the support.

Trace the topping lift from the boom towards the masthead and establish which arrangement Freedom has:

  • A fixed upper section with an adjustable lower tail: the two sections may be intentional, putting adjustment within reach of the boom.
  • A running line over a masthead sheave: a bulky join may catch at the sheave, mast exit or another fitting.
  • A wire upper section and rope lower tail: this is a familiar arrangement on older yachts. Inspect the wire termination as well as the rope.

Record where the join sits with the boom lowered and raised. An accessible join clear of all blocks presents different risks from one that disappears towards the masthead. The boat's name alone does not establish its rig specification.

Inspect ropes and bowlines

With the load removed, photograph the arrangement, then examine the full accessible length. Concentrate on the bowline eyes, the boom attachment and anywhere the rope touches metal.

  1. Look for damage: broken cover yarns, exposed core, melted or glazed patches, local thinning and heavy fluffing.
  2. Feel the rope: hard or brittle areas, flattened sections or an abrupt change in diameter warrant replacement.
  3. Inspect each knot: confirm that it is a bowline, properly dressed and tightened, with an adequate tail. Check for movement, abrasion and wear where the two eyes bear against each other.
  4. Check the hardware: look for sharp edges, loose pins, worn shackles and seized sheaves. Replacing rope without removing the source of chafe repeats the problem.

Two interlocking bowlines can make a serviceable connection in suitable rope, but they reduce its strength and create a bulky snag point. Do not assume an old, tight knot will stay secure indefinitely. Repeated unloading and flogging can loosen a bowline, particularly in slippery rope.

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This answer is general guidance from BoatBuddy based on the question above. For safety-critical work (gas, fuel, electrical, hull, rigging, navigation) always have a qualified professional check your boat.

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