Aids to Navigation–Class Aids

Posted on January 11, 2012 by
Making aids to navigation class aids

Making aids to navigation class aids

Students seem to struggle the most with the Aids to Navigation section when first learning about Boating Safety.  Most texts have simple diagrams and a few pictures but putting everything in context is difficult.  These teaching aids for Aids to Navigation seem to help.  The teaching aids are designed to be placed on a table top so students can move around the table and view the Aids to Navigation from different view points and move the ATON’s around on the table to see different views and courses.  Most of the Aids to Navigation class aids are about 4.25 inches tall.

These work nice as a hands on lab after the class has covered the Aids to Navigation section of the text.  I have also  produced a short narrated PowerPoint video that shows pictures of Aids to Navigation and the chart symbols with a section of the actual chart that works well but a hands on lab after the PowerPoint presentation seems to reinforce the learning. (U.S. Aids to Navigation presentation) The instructor notes are also very complete.

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U.S. Aids to Navigation

Posted on January 7, 2012 by
Aids-to-Navigation

U.S. Aids to Navigation

Understanding what an Aid to Navigation (ATON) means is a very important part of Safe Boating.  One of the problems understanding what each Aid to Navigation means is visualizing what a specific ATON looks like and match it to the symbol on a chart.  I have taken pictures of Aids to Navigation in the Seattle area and matched the ATON pictures up with the chart they are on and the symbol from the navigation chart.

There is only one Aid to Navigation per page to help boaters visualize clearly what each ATON looks like and to put the Aid to Navigation in the proper context on the chart and what the ATON means for safe boating.   The instructor notes are also included at the bottom of this article.

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Posted in Boating Safety, Navigation, Sailing and Boating Skills, seattle | Tagged , , , , | 3 Comments

Jules Vern Trophy Attempt

Posted on December 31, 2011 by
on-board-Maxi-Banque-Populaire-V

Photo of Banque Populaire V from the Banque Populaire V press site.

I have been watching the latest attempt at the Jules Vern Trophy by the Banque Populaire V a  Maxi trimaran 131 feet in length  for the last few days and it is beyond comprehension.  Banque Populaire V is running ahead of the current record holder Groupama 3 by over 1,500 miles with a few days left if they hold this pace to the finish line.

The rules are simple sail from France and leave the three major Capes to Port (Good Hope, Leeuwin, and Horn) and if you hit an iceberg or whale it sure would be bad for your time.   In one of the first notes I read from the boat they were lamenting that they had “slowed down to only 20 knots.”  The boat had some speeds in the mid 40 knot range, beyond my imagination.

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TVMDC – Practice – Correcting and un-correcting the compass

Posted on November 13, 2011 by

In today’s increasing use of electronic navigation aids, the ability to correct and un-correct a compass heading or bearing seems to becoming a lost art outside of a classroom.  Here are a few TVMDC Practice Problems to help keep your navigation skills sharp.

“Correcting” is converting a magnetic (M) direction to true (T). “Un-correcting” is converting from true to a magnetic direction. “True” direction is relative to true north (north pole). Continue reading →

Posted in Boating Safety, Navigation, Safety Thoughts, Sailing and Boating Skills | Tagged , , , , , | 1 Comment

The New Table

Posted on November 8, 2011 by
New-Boat-Table

The new table - ready for lunch

This is the new table I built for my boat.  My boat did not come with a cabin table which made eating below a bit of an adventure.  Some food was balanced a bit on the steps of the ladder, some on the top of the cooler and yet more sort of scattered around wherever there was an open space.   All in all a bit of an awkward solution.

I thought of many ways to do the table, some were long down the center of the cabin, others had legs that would be in the way or would have been easy to tip over.  My 23rd redesign was a two foot square table the hooked on the middle step of the companion way ladder and was held up with an angle brace to the step below it.

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Improved Fender Whip–Part 1

Posted on November 3, 2011 by

Improved Fender Whip on the left

This is an improved Fender Whip that holds knots much better than a standard Fender Whip and is much easier to handle than standard double braid or three strand line.  I got this trick from the Chief on a Coast Guard 41 ft Patrol Boat.  I was helping with a combined Coast Guard Auxiliary,  Coast Guard training exercise.  At the end of the day while we were going over what went right and what could have been done better.  I noticed that the fender whips on the Coast Guard fenders had the core stripped from the double braid line used to tie the fenders on the boat.  When I ask why, their response was that the knots held better.

That evening when I got home I took a piece of double braid line, removed the core and  tested the no core line with different  knots around different objects that simulated boat parts.  I found that knots in the double braid line without the core were more secure.  The double braid line with no core was also easier to handle.

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Posted in Boat Maintenance, Boating Safety, Sailing and Boating Skills | Tagged , , | 6 Comments

Mike’s Quick Rope Whipping

Posted on October 26, 2011 by
Mike’s-Quick-Rope-Whipping

Mike’s quick line whipping

This is the quick and secure whipping I use to whip the ends on double braid line.  I have not seen this in any book.  It has some of the elements of the classic quick temporary whipping but this method is much more secure  and almost as quick as the classic quick temporary whipping.  Properly whipped line ends in addition to keeping line ends from fraying also helps give your boat more “style points” and adds to your reputation as a knowledgeable sailor.

Whipping the ends of the line with this whipping is much easier for me to do than the classic regular whipping that has two frapping turns at 90 degrees from each other and the tough (for me anyway) ending knot and bury.  I use a single set of frapping turns to hold the whipping together with a quick secure bury of the two ends of the whipping twine.

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The New Non-Skid

Posted on October 21, 2011 by
Non-Skid-Bow-2

The New Non-Skid on the Bow

Here are a few lessons I learned from my Do It Myself non-skid project on the deck of my boat.

Paint: I used Interlux Interdeck, a Pre-mixed one part Polyurethane Non-skid paint which comes with fine non-skid particles already in the paint.  Interdeck has been “flattened” (gloss removed, low sheen) and is ready to go right from the can (more on this below).  I had used Interdeck on the cockpit sole and hatch cover several years ago and it had held up well and provided good non-skid properties when used with additional coarse grit added.

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