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.

Sailboat Engine and House Systems
Perhaps the most important use of DC power on a vessel is for starting the engine. Considerable power is needed for this task and if the engine does not start immediately...
October 19, 2023/by Grant Headifen
Rudder Force with Spring Lines
The rudder can be a big help because it can change the direction of the thrust force.
April 29, 2024/by Grant Headifen
Clouds, Fog, Thunderstorms
Clouds can give a relatively easy and quick look at what might be coming in the future. These clouds then are a good indication of possible changing weather in the next few days.
October 23, 2023/by Grant HeadifenPropeller Entanglement
If there is a sudden slowing or stopping of the engine while motoring it is possible that you have picked up some floating line, hopefully not from your vessel.
October 17, 2023/by Grant HeadifenKeeping the Telltales Flying Steady
As a sailor we are doing one of two things when it comes to sail trim, either holding a course or trimming to our sails...
August 24, 2023/by Grant Headifen
Getting the General Feel of Maneuvering a Catamaran
Some have compared maneuvering a catamaran with driving a bulldozer. Well . . . perhaps!
May 19, 2024/by Grant Headifen
Crew Safety Briefing
You can avoid many emergencies by conducting a proper safety briefing before leaving the dock.
October 24, 2023/by Grant HeadifenSailboat Diesel Engine Fluids
Diesel engines make use of a variety of fluids, including raw and coolant water, diesel fuel, and lubricating oil. A problem in the flow of any one of these fluids can cause problems...
October 22, 2023/by Grant Headifen
Using a Marine Radio
Knowledge of use of a VHF is not only mandatory for safety but some governments require a VHF knowledge certification before you can charter a boat in their waters.
April 10, 2024/by Grant Headifen
Mediterranean Mooring with an Anchor
Another factor when Mediterranean Mooring with an anchor is that the wind direction determines who is in control...
May 4, 2024/by Grant Headifen
Catamaran vs Monohull: A Real-World Comparison for Cruisers
Comparing catamaran vs monohull for cruising? This guide breaks down comfort, sailing feel, cost, safety, and real-life tradeoffs that matter.
June 27, 2025/by Merrill Homann-CharetteTrue Wind vs. Apparent Wind
Learn the basic difference between True Wind and Apparent Wind...
August 27, 2023/by Grant HeadifenHolding a Constant Heading while Adjusting the Sails
We're heading to a specific point on land or a compass heading. Thus we need to keep the sails flying effectively...
August 22, 2023/by Grant Headifen
Sailboats vs Sailboats Nav Rules
Sailboats On The Same Tack The Rule 12 a(ii) when both have the wind on the same...
August 24, 2023/by Grant Headifen
Boat Safety Sound Signals
Sound signals are defined and prescribed in the Navigation Rules for International and Inland Waters. Sound has an advantage over light signals, in that it can be used when vision fails.
October 25, 2023/by Grant Headifen
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
Docking Force Alignment and Moment Balance
When you are docking, if your boat pulls on a line attached to the dock, the line pulls back on your boat. If the forces are aligned, then nothing really happens.
June 9, 2024/by Grant Headifen
Vessel Lights and Shapes
Nighttime can be a beautiful time to sail. However, night vision is not the same as day vision and so rules have been established to ensure safety.
October 12, 2023/by Grant Headifen
Diesel Raw-Water System
Raw-water means that the water is straight from outside the boat. It might be seawater - it might be
October 15, 2023/by Grant HeadifenDock Line Release
Have a dock line untying plan based on the wind and the current direction and then communicate this to the crew. Depending on which is stronger...
October 17, 2023/by Grant Headifen
Deploying the Anchor
It is important that the person deploying the anchor and the helmsperson are in agreement about the anchoring plan first. Discuss the placement, the direction, the depth, the desired scope, and the setting plan.
April 15, 2024/by Grant HeadifenElectronic Navigation
We are well into the 21st century. Chances are that within 30 feet (10 meters) of you right now there are 2-3 GPS-enabled potentially lifesaving devices...
October 20, 2023/by Grant Headifen
Sails
Sails are sophisticated objects. It is not only the materials they are made from that are important, but also, the way they are cut and sewn.
October 13, 2023/by Grant Headifen
Crew Overboard
Crew ("Man") Overboard (MOB) is fortunately relatively rare, but chances are that in your sailing career it will happen.
October 21, 2023/by Grant Headifen


