What is the name of tackle number 9 as shown in illustration D029DG below?

USCG Exam Illustration D029DG — USCG Examination Diagram: **Illustration D029DG**

Official USCG Answer & Rule Citation

Correct Answer: Option A — Luff tackle

A luff tackle consists of a single-sheave block and a double-sheave block, providing a mechanical advantage of 3:1, commonly identified in deck seamanship rigging illustrations as tackle number 9.

All Deck General Sets Practice Set 168