T&T: Scanning Sonar Update
Thanks to all who helped me with their opinions on the forward looking sonar
and Interphase unit question both on and off line....... I am digesting and
researching lots of the info and downloads of brochures and manuals as I do
my due diligence....... Spotted one out there for the megayachts with
great graphics in the 78-80 boat units range before INSTALLATION which is WAY
out of the question for our purposes and have to look at some more various
brands of forward scanning and forward and side scanning to see the pros and cons
of each......................I have been checking out the searchlight and
ones the fishermen like for fish finding and net management (also pricey) from
Westmar and Furuno but think these are more than we need. I will get
back to the site sometime in a few weeks with some insight, questions, thoughts
to stimulate the discussion again.......right now I get to head to Alaska
for a week on the Ursa Major and discuss needs and reality, space and cost
benefit with my captain. He would like either a FLS (forward looking sonar)
or a boat dog. I think my varnish and carpet and boat value would prefer
the FLS.
Overall, the physics and concensus is the forward scanning sonars work a lot
better when the water is deeper and attempts to make them useful in shallow
water seems to be the biggest reason people don't like them. Luckily we
have some deep cruising areas here but sometimes it has big rocks or pinnacles
in the way or fog and darkness above waterline. So I have to decide if
the investment is worth it, if the space and budget allow, and if we can
use it with Nobeltec Bathy program to record our safe routes for Sea of Cortez
so we can come in from the 100 fathom line easier when cruising (answer for
Interphase seems to be yes to Bathy progam). We find the depth maps in the
Sea of Cortez to be highly suspect too often for a deep draft vessel and
would like to cruise a bit closer to shore sometimes, set up some safe tracks
for our charters there, and know when the bottom is rising before we get
there. We always want to be in 60-200 feet of water when cruising.
Sometimes the GPS and Nobeltec in Mexico with current maps even has us cruising ON
SHORE. Dead slow checking on anchorages would be nice too although many
of these we have explored with the skiff to do our own anchorage maps with
depth finder .....
More later guys...thanks.....
Joyce
V. Joyce Gauthier
Ursa Major
_www.myursamajor.com_ (http://www.myursamajor.com)
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