We do a lot more cruising than racing, so while I appreciate the value of
these goodies, I would rather spend my boat bucks on other things. I may
eventually put in a N2K backbone, however at least initially I can get by
without it. I have already integrated my Standard Horizon VHF/AIS receiver via
0183 and the sonar/depth/temp can plug directly in without N2K. I don't see the
need for the fancy sonar, in truth any sonar but Garmin seems to almost throw
it in for free so why not?
Cheers,Doug
On Wednesday, October 30, 2019, 09:55:02 a.m. EDT, Josh Muckley via
CnC-List <cnc-list@cnc-list.com> wrote:
Don't forget that the boat speed also feeds into the wind instrument as it
calculates true wind speed and direction. I find this helpful for planning
sail sets and anticipating the differences at different points of sail. You
can compare true wind conditions to the poplars of your boat. If you get fancy
and feed the true wind into a polar computer or some newer chartplotters like
the b&g zeus, they will tell you when to tack, target speed, and give you
laylines. Cool stuff but obviously getting a bit removed from the purist's
sailing.
That's good to know about the troubles with a thru-hull depth sounder. What
about fancy forward scan and side scan. Consider those? You are going with
N2K right?
Josh Muckley S/V Sea Hawk 1989 C&C 37+Solomons, MD
On Wed, Oct 30, 2019, 9:43 AM Doug Welch via CnC-List <cnc-list@cnc-list.com>
wrote:
Thanks Josh, I am doing the work over the winter layup in Toronto so days
above 5 degrees that epoxy requires to cure can be few and far between. I am
hoping to skip filling the existing hole with thickened epoxy by using an
appropriately sized plug on the hold saw. To answer your questions, I am just
going with temp and depth as it's simpler, less expensive and gives me sonar on
the same transducer. I know having a speed transducer is useful for determining
current, however I would rather have the sonar (for anchoring not fishing). A
friend has a shoot through the hull depth transducer on his boat and it seems
very flakey. He sails in Georgian Bay where shoals and rocks abound, his
transducer always seems to give up when we need it most.
Cheers,
Doug
On Wednesday, October 30, 2019, 09:23:59 a.m. EDT, Josh Muckley via
CnC-List <cnc-list@cnc-list.com> wrote:
As I understand it, that location forward of the keel was expected by the
designers to be the location for the speed and depth transducers. As such the
hull is solid in that location.
If you drill it out and find otherwise then a typical removing of the core
while leaving the inner and outer skins in place would be appropriate. Dig the
core back as far as possible. With a 52mm hole, angling a drill bit and other
various implements should be pretty easy. Back fill the cavity with thickened
epoxy, allow to cure, and redrill the 52mm hole as needed. Install the
transducer with 5200.
You will most likely find that the original was bedded with 5200 and will not
come free. There are products available that are supposed to loosen/weaken
5200. Try them first but it may still take days of soaking. If that fails
then a sanding drum on a drill can make pretty short work of the plastic and
5200. For the new hole, a hole saw typically needs the drill bit to center and
stabilize the drum but with a 32mm hole already there it can be difficult.
Create a stabilizing core by getting a hole saw that fits the existing hole
(either in the hull or in the existing transducer fitting) and drill a plug
from a 2x4. Now change the saw to your 52mm and slide the wood plug over the
drill bit. The plug will act as a centering guide as you drill the new hole.
Depending on the size of the old fittings this may be sufficient and
pre-removal may be unnecessary.
I find biological growth to fowl my speedwheel constantly during the summer
months. I'm frequently removing the speedwheel with the boat in the water
resulting in a small geyser. To avoid this I am seriously considering an
ultrasonic speed sensor. Have you considered this yourself? I would like even
more if I could find one that was able to be glued to the inner hull and simply
shoot through. I know some depth transducers are made this way but speed is a
different story.
Josh Muckley S/V Sea Hawk 1989 C&C 37+Solomons, MD
On Wed, Oct 30, 2019, 8:55 AM Doug Welch via CnC-List <cnc-list@cnc-list.com>
wrote:
It's time to replace the B and G Network Quad instruments on my 33-2. This
means replacing the old 32 mm paddle wheel speed transducer with a 52 mm airmar
transducer. I understand that the 33-2 is partially cored hull, so my question
is the area where the transducers are currently located cored. They are located
in the locker at the foot of the vberth. Any other advice on removing the old
and installing the new is gratefully received. I went with a Garmin Echomap
plus cv75 and sonar,depth, temperature transducer.
Cheers,Doug WelchCeltic Knot 33-2 c/b
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every one is greatly appreciated. If you want to support the list - use PayPal
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_______________________________________________
Thanks everyone for supporting this list with your contributions. Each and
every one is greatly appreciated. If you want to support the list - use PayPal
to send contribution -- https://www.paypal.me/stumurray
_______________________________________________
Thanks everyone for supporting this list with your contributions. Each and
every one is greatly appreciated. If you want to support the list - use PayPal
to send contribution -- https://www.paypal.me/stumurray
_______________________________________________
Thanks everyone for supporting this list with your contributions. Each and
every one is greatly appreciated. If you want to support the list - use PayPal
to send contribution -- https://www.paypal.me/stumurray
