Boating Knowledge Base
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Basic Telltale Control continued
Controlling the telltales by making course adjustments - when making the woolies fly by making course adjustments the rule is...
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.
Using Prop Walk
You can use prop walk to turn your boat in a tight marina by applying forward and reverse gears at appropriate times, leaving the rudder locked to starboard.
Sailing Wind Velocity & Direction
The faster the boat sails into the wind, the more the apparent wind speed increases and the more it feels like it is coming from the front of the boat. They say "The apparent wind is forward of the true wind". This means the apparent wind feels like it comes from a more forward direction than the true wind.
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.
Air Conditioning on a Sailboat
Air conditioning is an enormous energy drain.
Best Angle to the Wind when Sailing
Here's a diagram to show you what "degrees off the wind" means. Sails, unlike wings, get their shape from the wind pressure against the fabric....
Springing a sailboat On and In
Coming up to a Tee-head is more the situation where you need to spring on. The need for accuracy in your maneuver is heightened when the space is tight.
Vessels in Restricted Visibility
What is the safe speed at night, in fog? As safe as it needs to be under good seamanship.
Weather Predictions
While we have touched on weather concepts in this Module, no one can expect you to be a meteorologist (unless you are one) and do a good enough job at predicting the weather with enough quality to guarantee your safety.
Diesel Raw-Water System
Raw-water means that the water is straight from outside the boat. It might be seawater - it might be
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.
Electronic Communications
Nowadays, gigabytes of data can be sent in a second as a digital signal. It is all a complete Wow!
Lights on ATONS
Lights are installed on some ATONS. The lights are usually alternating on and off on some consistent interval to distinguish one ATON from another.
Electricity and Charging Your Devices on a Charter
It’s a given, we can’t live without electricity. At home, we have all the conveniences and all the chargers we need. But what about on a boat on a sailing vacation? What can I charge and what voltage is available?
Sailboat Maneuvering Topics
With practice, wind direction and current direction are not too much of a problem. But what can get you into trouble is extremely high winds. Be prepared to change...
Plumbing and Tankage – Getting Familiar with a Charter Boat
A diaphragm pump below directs flow from the water tank(s) to various faucets throughout the boat. You'll always begin a charter with full water tanks but understand that water conservation is still required.
Sailboat Electrical Panels
The sailboat electrical panel, located at the navigation station, normally has two distinct and separately marked sections; one section is devoted to 110-volt or 220-volt AC power and...
Available Energy Stored in a Battery
You don’t actually run all of the electron charge out of a battery when it is considered empty.
Mast Head and Fractional Rigging
There are two variations on the standing rigging set up: Masthead and Fractional. On masthead rigs, the attachment point for the sidestays (shrouds), forestay, and backstay (if they exist) is at the top of the mast.
Leaving the Dock – End Ties
Wind pushing you away from the dock - This is the simplest scenario. Once you are confident of your plan, release and stow dock lines, then allow the wind to push the boat clear of other obstacles.
Anchoring Basics
Anchoring is not simply throwing a "hook" and letting out a line. Although by watching some sailors this seems to be their theory. The best way to approach anchoring is to dissect it into a series of individual steps.
Securing Your Sailboat
It is convenient to have dock lines that are pre-set to the right length with loops on the end and are permanently mounted onto the marina cleats. Now, when you return to the dock you simply slip the loops over your vessel cleats.
Overtaking Vessels
When overtaking another vessel, we quote the rules exactly because they are incredibly clear...
