An anchor chain is a crucial part of a vessel's anchoring system, playing a vital role in maritime navigation and safety. A "shot" of anchor chain refers to a specific length of the chain that is used to secure a boat or ship when it is anchored. Generally, each shot of anchor chain is measured to be about 15 fathoms or 90 feet long. Understanding this measurement is not only important for professional mariners and sailors but also essential for those interested in marine studies.