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Nautical Know How
  • Our Courses

      All our courses are engaging, interactive and fun! Whether formal training or simply looking to brush up, we take online learning to the next level.

      • Sailing EssentialsFreeA free course great for anyone who spends time on the water.
      • Essential Navigation & SeamanshipRYA course for beginners. Learn charts, tides, pilotage, and core seamanship with simple practice tasks.
      • Day Skipper TheoryMost PopularRYA course for inshore skippers. Plan day passages using chartwork, tides, weather, and COLREGs.
      • Coastal Skipper / Yachtmaster® TheoryComing SoonRYA course for advanced navigation and passage planning. Work with secondary ports, tidal streams, and offshore weather.
      • SRC (VHF) Marine Radio CourseRYA Short Range Certificate radio course. Study online, then take the practical exam with an RYA assessor.
  • Directory

      Are you looking for something nautical related? Our directory is an extensive list of courses and places associated with the marine industry. Hop over and search now.

      • Places
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      • Courses
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      • Nautical Terms & Terminology
        Understanding the language of the marine world is like trying to learn a pirate’s secret code while juggling fish. Let us explain why a sheet isn’t for your bed, why “heave ho” doesn’t mean throw up (most of the time), and why “dead reckoning” is surprisingly less ominous than it sounds.
      • Why do we have tides?
        Have you ever wondered what causes the tides? Check out this video, which introduces the forces that create the tides we experience on Earth.
      • What causes our weather?
        A video introducing the drivers behind our weather, part of our RYA Day Skipper & RYA Coastal Skipper / Yachtmaster® Offshore theory courses.
      • Buoyage Flashcards
        Flashcards designed to help remember the buoys in the IALA system. If you want to learn them in detail, our module ‘Getting in and out of harbour‘, covers the IALA system and different buoys used.
      • Interactive Rule Book (COLREGs / IRPCS)
        Whether you’re a novice sailor or a seasoned skipper, we can help you navigate the IRPCS confidently and clearly. Our easy-to-use, easy-to-understand, plain English rule book with helpful interpretations of what each rule means.
      • The Salty Sea Blog
        From salty old sea dogs to fresh-faced deckhands, this blog is for anyone who finds peace, adventure, and a bit of mischief on the water. So hoist the main, set your course, and let’s sail into the stories, lessons, and musings that make life on the sea so irresistible.
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Published:25th October 20242nd November 2025 Last Updated:2nd November 2025
General Nautical Terminology | Parts of a Boat

Helm

To steer or direct a vessel using its helm or steering apparatus. The apparatus or position used to steer and control a vessel, typically including the wheel or tiller and associated mechanisms. 

The term “helm” is central to the operation and navigation of any vessel, whether a small sailing dinghy or a large motor yacht. As a noun, the helm refers to the physical equipment used to steer the vessel, which can vary depending on the type of craft. In traditional sailing vessels, the helm often consists of a tiller—a horizontal lever attached to the rudder—or a ship’s wheel, which is connected to the rudder via mechanical or hydraulic systems. Modern vessels may also feature electronic or joystick-controlled helms, particularly in motorboats and luxury yachts. The helm is typically located in the cockpit or wheelhouse, providing the helmsman (the person steering) with a clear view of the vessel’s heading and surrounding waters. 

As a verb, “to helm” means to take charge of steering the vessel. This role is crucial, as the helmsman must maintain the desired course, adjust for wind, currents, and waves, and respond to the captain’s commands. Steering a vessel requires skill and attentiveness, as even small deviations can have significant consequences, particularly in challenging conditions or crowded waterways. In sailing, helming also involves coordinating with the crew to adjust sails and balance the boat for optimal performance. 

The helm is often seen as a symbol of leadership and control in maritime contexts, representing the responsibility of guiding the vessel safely to its destination. Whether used as a noun or a verb, the term underscores the importance of precision, awareness, and expertise in the art of navigation.

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