Anchor shackles should have a breaking...

Anchor shackles should have a breaking...

Question 1 of 2707066636ee728f7522a1c5174bb

Anchor shackles should have a breaking strength that is __________.

Question 1 of 27070

Q

Anchor shackles should have a breaking strength that is __________.

🔍 Key Concepts

• Relationship between breaking strength of connecting hardware (shackles, swivels) and the proof/breaking strength of anchor chain • Why connecting components are usually required to be at least as strong or stronger than the gear they connect • Typical safety margin used in ground tackle design so the weakest link is not the shackle

💭 Think About

• If the shackle fails before the chain, what does that tell you about the relative strengths of the two? • Should the shackle be weaker, equal, or stronger than the chain to avoid being the first point of failure? By how much is a reasonable safety factor? • Think about which answer would make the shackle significantly stronger than the chain without being excessively overbuilt.

✅ Before You Answer

• Compare each option to see which provides a realistic safety margin over the chain strength • Eliminate any option that would intentionally make the shackle weaker than the chain • Consider which percentage increase is a commonly used design safety factor in marine hardware (not too small, not excessively large).