[C320-list] Knot meter

[DennyBrowne@Verizon.net]

Thanks, all. Turns out I don't just feel dumb, I actually am. Found the
paddle wheel transducer right beside the plugged in plug. The plug was
impossible to remove in the water, but not so in the yard. Possible the yard
removed it, and I'm not so dumb after all, but there you go.

Thanks for the info.

DENNY BROWNE
____________________________
A Cappella #935
Redondo Beach, CA
Denny at DennyBrowne.com

-----Original Message-----
From: C320-list [mailto:c320-list-bounces at lists.catalina320.com] On Behalf
Of Warren Updike
Sent: Saturday, May 02, 2015 11:48 AM
To: C320-List at Catalina320.com
Subject: Re: [C320-list] Knot meter

On the older models, like our #62, the speed transducer does not have a flap
that slows the inflow of water when pulling the transducer. The newer ones
with the flap are a smaller diameter and would require replacing the
thru-hull as well. 
Here on the Chesapeake, where water temps in the summer easily exceed 80
deg., and critters quickly take up residence in the recess of the
transducer. The process of pulling the transducer is too much of a headache,
so we have compromised by not using it at all. 
Research has informed me that for purposes of calculating true wind, use of
SOG may produce a more accurate result than STW. Some newer devices
(plotters, etc.) allow a selection of either for true wind. For those still
living with Sea Talk, there is a device, about $100, that will take the SOG
message from Sea Talk and inject the speed as STW in Sea Talk lingo so that
the wind instrument will provide a True Wind without the paddle wheel
transducer. I can't say if this device works with later versions of Sea
Talk. Being that I am too old, too frugal, don't race (pick one, or all) I
have decided that life is good enough without STW and True Wind. If anyone
is interested, contact me and I will dig out the specifics on this device.

Warren and Pattie Updike
1994 C320 "Warr de Mar" #62

-----Original Message-----
From: Elizabeth Schwartz [mailto:schwartz781 at optonline.net]
Sent: Friday, May 01, 2015 7:49 AM
To: C320-List at Catalina320.com
Subject: Re: [C320-list] Knot meter

Ahoy....The paddle wheel is as Don says......the devise is easily
removable, ..I think there is a flap that prevents water from gushing in
when removing or placing the paddle wheel. I normally don't use the
speedometer for day sailing, keeping the wheel clean for cruising. There is
a plastic screw cap to hold the unit, or plug in place. Joe n 
Beth....#245     


On Fri, May 01, 2015 at 05:57 AM, Don Dixon wrote:

> There is a plug that allows the paddle wheel to be removed and 
> cleaned.  I suspect that is one of the lens things you describe (the
> other is the depth finder).   Look in the bilge just aft of the 
> forward berth and see if paddle wheel is sitting there.  If so, swap 
> it out with the plug (thus can be done in water, just a bit messy.
>
> Regards,
>
> Don Dixon
> Stargazer, #605
> Key West, FL
>
> Sent from my iPad
>
>> On Apr 30, 2015, at 22:37, Denny Browne  wrote:
>>
>> I feel dumb. Knot meter hasn't worked since the last bottom job. I 
>> thought the yard guys bent the little paddle wheel with the sling, 
>> but I just hauled it again and there isn't a little paddle wheel.
>> There's just this little round lens in the middle of the through 
>> hull, flush with it. Same for the depth sounder, which seems to work 
>> fine.
>> Anyone want to venture a guess as to why the knot meter might just 
>> quit? How does the gizmo in the hull know how fast you're moving 
>> through the water?
>>
>> Any insights, no matter how obvious, are appreciated.
>> Denny Browne
>> A Cappella #935
>> Redondo Beach
>>
>> Sent from iPhone, sorry for typos, grammar, etc...
>