This ain't big ship....

http://www.interphase-tech.com/probe.htm

or this.....

http://www.interphase-tech.com/seascout.htm

CM


"Simple Simon" wrote in message
...
|
| I repeat, WE'RE NOT TALKING BIG SHIP CRAP HERE!
|
| Depth sounders give a depth for sure and generally they are
| pretty accurate. However, what good is a depth when a
| vessel could be any number of miles along a contour or on
| a flat? Answer - no good at all. What matters is lat/lon with
| high degrees of accuracy. Knowing your depth is very vague
| information at best when attempting to place a fix on a chart.
|
| Small sailing yachts can rely on GPS so they do not need depth
| sounders as much as big ships. When a small sailing yacht is
| getting into dangerously shallow water the eyes of an experienced
| will look at the wave action, color of the water etc. and be able
| to ascertain the depth to a high degree of accuracy.
|
| Now, get out of here and go back to rec.boats where you belong.
|
| S.Simon
|
| "Shen44" wrote in message
...
| Subject: Faulty depth finder attributed to whale attack!!
| From: "Simple Simon"
| Date: 10/07/2003 08:10 Pacific Standard Time
| Message-id:
|
| Bull****. A chart shows contours, bottom make up such as
| rock, sand, shell etc., possible upcoming obstructions and
| the like. This info is simply not available on a yacht depth
| sounder.
|
| S.Simon - not talking about big ship crap here . . .
|
| Not talking about "big ship crap" .... talking about Navigation.
| A chart is nothing more than a "picture" of an area that you may be in
..... by
| itself, it's useless, until you can start applying other information,
gleaned
| from other sources to locate yourself in a position on that chart.
| A fathometer, be it a recording, digital readout, or blinking light will
help
| give you information to locate that position (personally, prefer the
| recording).
| Prior to the advent of all the electronic nav aids, such as LORAN, GPS,
| fathometers were much more frequently used to check, and even locate,
ones
| position on a chart, be it in shallow or deep water.
| It's just another tool you have available .... shame you don't
understand it's
| use .... but expected .....
|
| Shen
|
|