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Justan Ohlphart[_2_]

On 1/2/2020 1:31 AM, wrote:
On Wed, 1 Jan 2020 22:50:10 -0500 (EST), Justan Ohlphart
wrote:

Wrote in message:
On Wed, 01 Jan 2020 13:00:28 -0500, John H. wrote:On Wed, 1 Jan 2020 16:45:16 -0000 (UTC), Bill wrote:John H. wrote: On Tue, 31 Dec 2019 21:13:43 -0500, Alex wrote: Last night...
https://wsvn.com/news/local/several-injured-after-boat-crashes-into-jetty-near-fort-lauderdale/ Cocktails? Not every jetty shows up on a GPS. That happened a few times in Deale, MD, when folks would follow the GPS to get home. Midnight and speed. He was not going slow to get that far up the rocks
ina 42â€™ boat.For sure speed. Same thing happens in Deale. Going fast and taking the line offered by the GPS hasbeen the problem more than once. Everyone knows I am the real Luddite here but I fear modernelectronics is taking the place of basic seamanship and the importanceof local knowledge.

Why do you fear modern ways of navigating? If you should ever
decide to expand your horizons, you might embrace some of the
newer technology available.

Did you read what John wrote? People who trust their GPS blindly, hit
things that are not in the database. The database for the bay here is
pretty much useless anyway unless you just accept "don't go there" as
an answer.
The other issue is, if your electronics fail, do you just drop anchor
and call sea tow, hoping they can triangulate your position on their
radio or something?
I know people who think their Garmin Chart Plotter is all they ever
need. They don't even have a compass and no charts on board ... if
they could read them in the first place.

If that chart plotter craps out they are screwed, particularly at
night.

OTOH I navigate at night using local landmarks (radio towers, condos,
mangrove islands I recognize) and simply knowing where I am and where
I am going.

I did.
Knowing where you are and where you are going is a lot easier if you
have help from a variety of electronic and mechanical instruments.
Having local knowledge helps if you are local and you can see what is
around you.
I remember when all I had was a compass, binoculars, a chart and a Ray
Jefferson RDF.Dividers and parallel rules came shortly after. We've come
a long way since then.

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