The Anatomy of a Boat

By: Equipment, Learn To Sail, Sailboats

Do You Know the Parts of a Boat

Learning to sail is not just about feeling the wind in your sails. You also become familiar with the vessel that will be part of your new lifelong adventure. A sailboat can seem daunting with all its moving parts, but it is quite simple.

I recently learned the term Keel Hauling, and I was a bit shocked at not knowing the reference.  When you sail, you take on an entirely new language of words, sayings, and jargon.  A few of us sailors even embrace the same Jimmy Buffet songs as part of our perennial sailing playlist.  (that is another story for a different time)

My wife, who has sailed for over 20 years, is competent under most conditions at sail and knows her way around our vessel, but I was surprised that she didn’t know some of the simple terms that we sailors use daily. There are some fundamental terms that all sailors learn as they begin their sailing career and the rest of the information follows along as you spend more time on the water.

When you embark on a sailing education in ASA 101 Basic Keelboat Sailing, you learn about the parts of a boat. These are part of the fundamentals of sailing.  While these few terms are interchangeable among boats, they certainly are not the only terms you’ll learn, but they are the beginning of a new language when you become an ASA certified sailor.


This is a keelboat. It is different from a dinghy in that it is larger than 20 feet and has a keel. Keelboats start at around 20 feet with no upper limit in length. A 200-foot megayacht is considered a keelboat.

Sailboat Terminology

Dinghy – A small sailboat usually under 20 feet long and open for most of its length.

Keel – A fixed appendage on the bottom of the hull that provides sideways resistance needed to counter the force of the wind on the sails. The keel also carries ballast, usually iron or lead, the weight of which counteracts the force of the wind that causes a sailboat to heel, or lean over.

Hull – The watertight structural shell of a boat.

Bow – The forward part of a boat

Stern – The aft part of the boat. 

Transom – The more or less flat surface that closes the hull at the stern

Rudder – The sailboat is steered by a fin-shaped appendage attached beneath the boat toward the stern which can be rotated to change the angle at which the water strikes it. Water must flow past the rudder in order fo rit to work so it will not turn the boat while at rest.

The rudder is controlled by a wheel or a tiller at the helm of the boat. The person steering the boat is the helmsman.

Cockpit – The area of the boat, usually recessed into the deck, from which the boat is steered and sailed.

Deck – The generally horizontal surface that encloses the top of the hull.

Companionway – The entrance from the cockpit or deck to the cabin.

Stanchion – A metal post that supports lifelines.

Lifeline – A wire supported on stanchions around the perimeter of the deck to prevent crew from falling overboard.

Pulpit – A guardrail at the bow or stern of a boat to which (usually) the lifelines are connected.

Learning to Sail

  • ASA 101: What You’ll Learn ASA 101 is your introduction to Basic Keelboat Sailboat and is your key to a lifetime of sailing.
  • How To Sail Sailing a boat is part art and part skill but few activities offer such a variety of pleasures as sailing. Something special occurs when you cast off the lines and leave your cares at the dock.
  • 7 Tips For The Beginning Sailor There are the obvious things you need when you go sailing, sunscreen, a hat, a windbreaker, non-skid shoes, and wind. However, what do you really need to be ready to head out on the water?
  • How To Learn To Sail You won’t have to buy a boat or learn a new language or buy a new wardrobe to get a taste for sailing. You can dictate how much you want to experience.
  • Learning To Sail Is Just The Beginning Sailing means different things to different people. At ASA we understand that learning to sail is just the beginning of a relationship with a lifestyle that is infectious. Where will sailing take you? We have a few ideas but how you view sailing is the most important.
  • What Is Your Role on a Boat? What type of sailor are you and what role do you take on the boat? Your ASA sailing education will prepare you to be a skipper on a sailing vessel and with that comes the responsibility of keeping your crew safe and ensuring the safety of the vessel you are sailing.