Re: [Paddlewise] VHF plus GPS for $250? Yes....

From: Michael Neverdosky <MichaelN_at_cycat.com>
Date: Sat, 12 Dec 1998 11:03:46 +0000
johnlebl_at_aol.com wrote:

> Faulty navigation gear has caused many a tragedy.  Quality, functional nav
> gear has prevented many a tragedy.

I have to argue this one.

Faulty NAVIGATION has caused tragedys.
Good navigation uses information form several different sources so that a 
failure of any one source does not cause any problem.

Always (well as much as is practical) use every source of information
available.
Direct observation is always the most important tool. If you launch your
kayak in Florida and are in the water for less than 3 hours, it is easy to
know
that a GPS reporting that you are in California is in error. Likewise, if
it shows that you have traveled 100 miles in the same 3 hours, you might 
get the idea that something is not quite right.

Many people have crossed oceans without instruments beyond the senses they
were born with. A good book to start with is "We the Navigators" by Dr.
David
Lewis.

A GPS is only a tool and it is only one tool in the navigators bag of
tricks.
I list it well down on the list of tools which also includes a good deck
mount
compass, a hand bearing compass, a chart of the area, and other items as
available.
I tend to add a good knotlog (that I have calibrated) before a GPS, in any
case it
is a good item to use with a GPS as I can then compare speed and direction
through the water to speed and direction over the ground and calculate set 
and drift i.e. the effect of current.

If you are in an area of good coverage a Loran C can be a wonderfull item,
it
will actually take you back to a spot you have been before more accurately
than a GPS. These are also dirt cheap as most people are jumping to GPS.

> Cheapiong on nav gear would be like using a $ 19.95 discount store paddle on a
> $ 3,500.00 Kayak.  What is the purpose?  To save money or prove that you can
> do it?

This I do agree with.
Buying cheap gear is false economy.
At the same time it is very important to invest in training and skill
before
equipment, especially when it comes to navigation. Good basic navigation
skills
will still work even if you have no electronics at all. Knowing how to 
navigate will also help you pick the best tools for you and the navigation
you need to do. There is a big difference between paddling a kayak along
a sheltered coast and crossing an ocean and the navigation tools selected
will be different.

Example, I doubt that I would ever use a sextant on a kayak but I would
not
cross an ocean without one.

michael
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Received on Sat Dec 12 1998 - 08:04:18 PST

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