How to Identify Different Types of Harbour Craft

Why Harbour Craft Are Worth Reading Properly

A working harbour is a library of shapes. Most visitors see a jumble of white, blue and rust, take a photograph of the sunset and move on. But once you can tell a trawler from a potter, or a smack from a weekend yacht, a simple walk along the quay becomes far more rewarding. You start to notice what is actually happening around you: which boats are waiting for the tide, which have just landed, which are laid up for the winter. You do not need a nautical almanac. You need to know what to look at, and in what order.

Start with the Hull, Not the Paintwork

Hull shape tells you what a boat is for before you read a single name. Look at the bottom of the boat where it meets the water, and at the angle where the hull side turns into the hull bottom.

• Round bilge — a smooth, continuous curve from keel to gunwale. Heavier, stable and sea-kindly. Almost every traditional fishing boat and cruising yacht has this shape.
• Hard chine — a distinct angle where the bottom meets the side. Cheaper to build, often lighter and faster, common on modern angling boats and small workboats that need to plane.
• Clinker, or lapstrake — overlapping planks, so the hull looks like weatherboarding. A strong sign of an older or traditionally built boat.
• Carvel — flush planking, smooth to the touch. Typical of larger, older fishing craft and pilot boats.

Now look at the sheer line, the curve of the deck edge from bow to stern. A high, flared bow throws spray aside and copes with rough water; a low, flat profile suggests sheltered estuary work. Deep draft means the boat needs water under her; a shallow, flat-bottomed hull can sit on mud at low tide. That single detail explains half the layout of any harbour you visit.

Fishing Craft: Trawlers, Potters and Dredgers

Fishing boats are the easiest group to split once you know the gear on deck. The registration number painted on the bow — a couple of letters and up to four digits — tells you the home port, which is a good clue to the local fishery.

• Beam trawler — wide, powerful, often with two outrigger booms. Beam trawls are heavy, so these boats are big, sturdy and usually steel.
• Potter or creel boat — a working deck stacked with wire or plastic creels, a hydraulic hauler on the side, and often a shelter or wheelhouse set aft. You will see these in almost every small Scottish and Cornish harbour.
• Scallop dredger — a row of steel dredges along the stern, a heavy toothed bar, and a hull built to take a beating.
• Netter or ring netter — a clean, low aft deck with a net drum, and often a very high bow for lifting gear in a swell.

Sea angling boats sit in the same part of the harbour and can fool you at a glance. Look for rows of rod holders, a flush deck with no winch gear, and a cabin built for passengers rather than catch.

Rigs, Masts and the Sail Legacy

Sail tells you the boat’s history and, often, its modern purpose. Look at the shape of the mainsail, where the mast sits, and how many sails there are.

• Bermudan sloop — one mast, triangular mainsail, the standard modern yacht rig. Almost always leisure.
• Gaff rig — a four-sided mainsail with a spar along the top. Traditional working boats such as Essex smacks, Brixham trawlers and Norfolk wherries carried it, and many restored examples still do.
• Lug rig — a four-sided sail hung from a spar that is raised and lowered rather than permanently attached to the mast. Common on older dinghies and small working craft.
• Gigs — no rig at all. Cornish pilot gigs are six-oared, clinker-built and around ten metres long, built for speed to reach a ship before a rival pilot. If you see a long, narrow, open boat with six thwarts, you have found one.

A gaff ketch has two masts, the after one shorter. A yawl has a tiny mizzen right at the stern. Those distinctions are worth knowing because they are the fastest way to date a hull from a distance.

Small Craft Under Your Feet

Do not overlook the boats moored along the pontoons, because they are the most varied group of all. A tender is a small dinghy kept for ferrying crew and stores; it is usually plain, scruffy and hard-working. A punt is flat-bottomed and square-ended, often rowed standing up. A dory has a distinctive flat bottom, flared sides and a sharp, narrow stern. A coble from the north-east coast has a high, almost Viking-style bow and a steeply rising stern, built to be launched from an open beach.

Then there are the working boats that never fish: harbour tugs with big fenders and a high wheelhouse for visibility; pilot boats with a foam collar and a fast, steep hull; dredgers with a hopper amidships; and the humble RIB, which is exactly what it looks like and is generally doing something useful.

Putting It Together on a Harbour Wall

Next time you stand on the quay, work through a simple routine. Read the hull first: round or hard chine, deep or shallow, clinker or carvel. Then the deck gear: winches, creels, dredges, rod holders. Then the rig, if there is one. Finally the registration number and the name. Three minutes of looking will tell you more about the local economy than any information board. And if you are still unsure, ask. Harbour folk are, in the main, delighted to explain what they do — and it is the fastest way to learn the difference between a boat that catches fish and a boat that catches visitors.