Boating Knowledge Base

Have a sailing question? Access NauticEd’s sailing and boating knowledge base, and gain in-depth answers to your sailing questions. If you’re interested in powerboating, visit our new powerboating blog.

Seamanship Nav Rules

Navigation rules refer many times to good seamanship, The best advice we can give here around seamanship is to get experience...
August 31, 2023/by Grant Headifen
Two sailboats, one red and one blue, are connected on the water.

Towing

The following diagram shows how you can tow another vessel. Form a “bridle” from the rear cleats...
October 24, 2023/by Grant Headifen

The Job of a Sail Trimmer

Sail trimmers in world-class regattas spend years reading and understanding the wind relative to the sails. Sometimes they trim the sheets only a few inches/cm...
August 5, 2023/by Grant Headifen

Seasickness on a Bareboat Charter

Here is some education about sea sickness that can help you and your crew overcome it.
April 12, 2024/by Grant Headifen
Sleek red sailboat gliding on blue water with foils, under a clear sky.

Sailboat Design

Surely, the first sailboat was invented by a five-year-old child with a block of wood. He or she stuck a twig through a piece of animal skin and then down into a knothole in the wood.
October 24, 2023/by Grant Headifen
Diagram of a Yanmar marine diesel engine with labeled parts: fuel filter, coolant filler cap, oil dip stick, belt, water pump.

Sailboat Diesel Engine Operation

As noted earlier, diesel engines are sturdy and highly reliable, and operating them today is straightforward.
October 14, 2023/by Grant Headifen

Hull and Keel

A sailboat’s hull and keel receive considerable attention from a sailboat designer since they determine the capacity of the vessel, how fast it will go, and the degree of safety and comfort.
October 16, 2023/by Grant Headifen

Basic Telltale Control continued

Controlling the telltales by making course adjustments - when making the woolies fly by making course adjustments the rule is...
August 14, 2023/by Grant Headifen
Diagram comparing water flow in buckets to energy flow in batteries, illustrating concepts of joules and watts.

Understanding Energy and Power

Energy: The concept of energy is likened to water for the easiest understanding. A bucket of water holds a specific amount of water which is measured in a quantity of gallons or liters. It is finite; when it is all drained out, it is gone. To gain more, it must be replaced from a source.
April 14, 2024/by Grant Headifen
Two sailboats with conical shapes on the ocean, indicating vessels under power, sailing in clear weather.

Motor Sailing

If the wind is light and your time is short you might want to consider motor-sailing—using your auxiliary engine...
October 19, 2023/by Grant Headifen
Diagram showing a navigational leadline marked with depth in feet from 10' to 50' and angles from 32 to 33 degrees.

Know Your Chart!

Always familiarize yourself with any chart before using it for navigation and plotting of positions; there are significant differences between charts that could lead to mistakes.
October 14, 2023/by Grant Headifen
Diagram comparing lift and drag forces on fabric and winged sails, illustrating aerodynamic efficiency differences.

Winged Sail Vector Diagrams

Sail and Winged Sail Wind Force Vector Diagrams. And it's highly relevant right now because of the America's Cup AC45 catamarans using winged sails.
August 26, 2023/by Grant Headifen
Raymarine sailing instrument displaying depth of 9.8 feet and speed of 6.35 knots, with log reading 10321 NM.

Key Sailboat Instruments

Sailboat Instrumentation can be very sophisticated and intelligent. Most electronic displays provide a wide range of menus of useful information...
October 18, 2023/by Grant Headifen
Scenic harbor view with sailboats docked along a quaint seaside village, surrounded by lush greenery and hillside houses.

Mediterranean Mooring Techniques

Mediterranean Mooring Techniques is where the rubber meets the road—or, in this case, where the gel coat does not touch the big bad hard concrete wall.
May 15, 2024/by Grant Headifen
Two men discuss a yacht purchase strategy at a marina, with a model sailboat on the table.

How to Negotiate When Buying a Boat

Get expert tips on how to negotiate when buying a boat, helping you make an informed investment for your sailing experience.
March 22, 2026/by Merrill Homann-Charette
Diagram of sailing angles: upwind and downwind with wind direction indicated. Ideal for navigational strategies.

Sailing Directions

Directions are super important because while sailing, you will always be in communication with others regarding directions of obstacles, wind changes, your destination, water current, and other boat traffic.
October 21, 2023/by Grant Headifen

True Wind vs. Apparent Wind

Learn the basic difference between True Wind and Apparent Wind...
August 27, 2023/by Grant Headifen
Diagram of a marine propulsion system with inline shaft alternator and propeller, enhancing ship energy efficiency.

Spinning Propeller

As you sail along, the water flowing over your propeller will cause it to spin. Some sailboats are fitted with a special alternator that will create electricity...
October 13, 2023/by Grant Headifen
Diagram showing 12V DC power inverted to 110V AC current with a waveform illustration and labeled inverter.

Sailboat Inverters

Sailboat Inverters are devices used to convert 12-volt DC battery electricity to AC 110-volt or 220-volt electricity. Special electronics in
October 13, 2023/by Grant Headifen
Sailing yacht gliding through ocean waves at sunset, sailor steering from deck, capturing adventure and freedom at sea.

Rigging

At boat shows, we see folks huddled down in the vessel’s salon oohing and aahing at the leather cushions to sit on, and at the electronic gadgets for navigation and entertainment.
October 24, 2023/by Grant Headifen
Sailboat interior bathroom with mirror, sink, and hangers for gear, showcasing efficient use of small space.

Showering on a Charter Boat

Charter boat guests use the showers not only for basic hygiene, but must also rinse off seawater after swimming to avoid nasty skin rashes (sailor’s sores). 
April 3, 2024/by Grant Headifen

Basic Surface Geometry

Below is a brief summary of how locations are commonly expressed on different surfaces.
October 13, 2023/by Grant Headifen
Man walking beside a modern spiral staircase on a minimalist deck, under a clear sky.

Propwalk factors – The p factor

There are two combined reasons that work in unison to create propwalk.
May 16, 2024/by Grant Headifen
Comparison of lifejacket and buoyancy vest, illustrating flotation differences in water safety gear.

Types of PFDs

Types of PDF's Here is a graphical explanation between a lifejacket and a buoyancy vest. PFD Type ratings are being phased out...
October 18, 2023/by Grant Headifen

Last updated on December 6th, 2024