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.

Diagram of a fuel system flow: tank, filters, pump, engine. Return line and shut-off valve included.

Diesel Fuel

The search, discovery, refinement and resource control of fuel has a rich and very sordid history. But just like...
October 18, 2023/by Grant Headifen
Sailboat and motor yacht on open sea, aerial view, showcasing a serene maritime adventure on calm waters.

Crossing Situations Nav Rules

The Rule 15 (a) when two power-driven vessels are crossing so as to involve risk of collision, the vessel...
August 24, 2023/by Grant Headifen
Sailboat with underwater propeller motion illustration beneath a clear sky.

Dual Rudder Monohulls

When a monohull sailboat has dual rudders, the boat will act with different characteristics than with a single rudder. Thus, the point of this module is to help you maneuver a dual-rudder monohull sailboat.
May 13, 2024/by Grant Headifen
Sailboat gliding on calm sea during a vibrant sunset, highlighting the beauty of sailing at dusk.

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
Illustration of a sailboat viewed from above, showing sail, mast, and keel, highlighting basic sailing structure.

Using Spring Lines for Docking

A spring line is just a dockline that is placed strategically from the boat to the dock to help maneuver and turn the boat in place - get it safely into the dock or safely away.
October 24, 2023/by Grant Headifen
Group enjoying a sailing trip on a yacht, navigating through open sea with two steering wheels and wooden deck.

Good Captainship

Being a good captain on a bareboat charter is a real skill. It is very unlike being a good captain on a military or commercial ship or even a captain in a local yacht race.
April 5, 2024/by Grant Headifen
Woman starting a dinghy motor near a catamaran at sea during sunset, showcasing boating and adventure lifestyle.

Dinghy Safety!

When it comes to dinghy operations, the following is a dangerous attitude: “It’s only a short distance ashore—jump in...
October 17, 2023/by Grant Headifen
Top view diagram of a sailboat hull showing water flow direction and pressure points for optimized sailing performance.

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
Red and white diver down flag indicating scuba diving activity or a submerged diver in the area.

Non-Electronic Communications

Sailing has been around for thousands of years. Electronic Communications has been around for less than 100 years (not counting the telegraph).
October 24, 2023/by Grant Headifen
Sailboat engine cooling system diagram showing fluid flow through heat exchanger and pumps.

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 Headifen
Sailboat engine cooling system diagram showing fluid flow through heat exchanger and pumps.

Sailboat Diesel Closed Water System

The second sailboat cooling system fluid is called the closed or coolant water system.
October 23, 2023/by Grant Headifen
Red powder fire extinguisher with blue handle, essential for boat safety and emergency preparedness on board.

Sailboat Fire Extinguishers and Requirements

Fire Extinguishers Fire Extinguishers are given a letter rating that matches the type of fire they will be battling.
October 13, 2023/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
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
Diagram illustrating air flow and force on a sail from NauticEd, a leading sailing education course provider.

Understanding How Airflow Creates Lift

Understanding how Airflow creates lift and the need for smooth airflow when sailing...
August 23, 2023/by Grant Headifen
Sailboats navigating wind direction on blue ocean with mapped pathways and positions.

Anchoring with Propwalk on a Sailboat

Without proper knowledge of how the boat reacts to the wind and propwalk, anchoring can be a real challenge.
March 27, 2024/by Grant Headifen
Sailing boat battery switch panel with labels and on/off toggles for negative and positive connections.

DC Electrical System on a Charter Boat

Batteries power the 12 Volt DC “house” electrical system. There may be one or several batteries linked together to supply power...
April 1, 2024/by Grant Headifen
Burned marine shore power plug showing signs of electrical damage in hand, indicating potential safety hazard.

Shore Power Connection

One of the more common sources of fire on a boat is a loose connection of the shore power to the receptacle plug on the stern of the boat.
October 22, 2023/by Grant Headifen
Sea spray splashes over a vast ocean surface under a clear sky, capturing the excitement of open water sailing adventure.

Waves, Swells, and Depth

Since waves are primarily the result of surface wind action, they can be accurately predicted. Waves have troughs and crests.
October 15, 2023/by Grant Headifen
Sailboats navigating between docks on a sunny day, with wind direction marked, illustrating docking maneuvers.

Leaving the Slip with a Sailboat

Wind coming into the slip channel and your boat is stern-to. This is best handled by steering out of the slip and then immediately downwind. Back out of the slip channel and well into the main channel before engaging forward.
April 1, 2024/by Grant Headifen

Sailboat Balance

Below is an animation that shows the balance of forces: actually it is technically the balance of a concept called “moments.”
October 20, 2023/by Grant Headifen

Last updated on December 6th, 2024