Dolphin (cutter)

A "dolphin" in nautical terms can refer to a variety of structures, but in the context of a "cutter," it most likely refers to a type of single-pile or multi-pile marine structure. These structures are typically driven into the seabed to serve one of several purposes related to navigation, mooring, or protecting other structures. When referring to a cutter, which is a type of sailing vessel, the dolphin is often relevant in the context of coastal navigation and harbor usage.

Specifically, dolphins can be used as:

• Mooring Dolphins: Isolated pilings used for tying up vessels. A cutter approaching a pier or mooring area might utilize dolphins to assist in maneuvering and securing itself. These dolphins act as independent mooring points, allowing vessels to be secured even if the quay or pier is occupied or unsuitable.

• Fender Dolphins: Structures designed to absorb the impact of vessels alongside a quay or pier. These dolphins protect the main structure from damage during berthing and maneuvering, which is particularly important in areas with strong currents or heavy traffic where a cutter may need to approach cautiously.

• Navigation Aids: Occasionally, dolphins are used as markers or beacons to indicate channels, hazards, or turning points. While less common than buoys or lighthouses, a dolphin might mark the edge of a channel or a submerged obstacle, requiring a cutter's crew to navigate with awareness.

The term "cutter" itself refers to a sailing vessel characterized by a single mast and a fore-and-aft rig, with two or more headsails. Cutters are known for their versatility and suitability for both coastal cruising and offshore sailing. Therefore, understanding the function of dolphins is essential for a cutter's safe navigation and efficient utilization of harbor facilities. The material composition of dolphins varies but typically includes timber, steel, or concrete, depending on the load-bearing requirements and environmental conditions.