š Key Concepts
ā¢ Lifeboat falls construction requirements in 46 CFR Part 160/199 (lifesaving equipment)
ā¢ Differences in flexibility and strength between 6Ć7, 6Ć19, 6Ć24, and 6Ć37 wire rope constructions
ā¢ Why regular-lay, filler wire, and core type (fiber vs wire) matter for lifeboat handling gear
š Think About
ā¢ Which construction is most commonly specified for lifeboat falls that must run freely over sheaves, be flexible enough to handle, but still strong and durable?
ā¢ Look at each choice: which one is more suited for standing rigging (stiff, few wires) and which is for running rigging (more flexible, more wires)?
ā¢ How does a fiber core vs an independent wire-rope core affect crushing resistance and durability in a lifeboat winch drum?
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Before You Answer
ā¢ Verify which wire-rope construction (6Ć7, 6Ć19, 6Ć24, 6Ć37) is standard for running gear like falls, not for standing rigging.
ā¢ Check which option specifies regular-lay filler wire ā this is often associated with lifeboat falls in USCG/IMO guidance.
ā¢ Confirm whether a fiber core is normally accepted for lifeboat falls or if a wire core is preferred/required for strength and resistance to crushing.