[C320-list] Speed paddle

[Bev Wright]

Warren and Richard,

I have hull #15 and I find the same thing true - gets fouled easily, inaccessible under the v-berth and water shoots out, no flapper, so we don't end up using it unless it miraculously starts working.  However, for me as a club racer, while I have a GPS for SOG, I believe that the primary reason we should have it operational is to see how much current is with us or against us, i.e. speed through the water. I'm not so much interested in true wind even if I should be. I have a wind instrument that has a true wind setting but I thought that was calculating the difference between our speed and the wind speed/direction. Are you saying that this instrument you mention will calculate the speed through the water? 

Sorry, I'm not an engineer, although my sailing/racing father is, so I should ask him as well.

Bev Wright
s/v Whoosh
Edgewater, MD

-----Original Message-----
From: C320-list [mailto:c320-list-bounces at lists.catalina320.com] On Behalf Of Warren Updike
Sent: Thursday, April 27, 2017 6:01 PM
To: C320-List at Catalina320.com
Subject: Re: [C320-list] Speed paddle

We have stopped using the speed transducer because, here on the Chesapeake Bay, the damn thing doesn't last a week in the Summer before some critters decide to take-up residence in it. As a result, it stops working. And, as our older hulls don't have the transducer with the shutoff flapper, and the transducer is under the V-berth, it's a real pain to get at it to remove it. Further, the in-flow you get when you do pull it has no direct path to the bilge (all issues on the older, shallow bilge design.) All reasons why we no longer use it. If you don't have a wind instrument and you have a GPS, why would you need Speed-thru-the-water (STW?) Gauging set and drift, perhaps?  

There is, however, a solution for racers, those with wind instruments, and others who want/need true wind display. This is a device from New Zealand, for about $100, that will take an input of GPS speed-over-ground (SOG, as a NMEA-0183 message from the Sea Talk network on-board,) and output an analogue STW to the Wind Instrument. Problem solved. I've seen it said that SOG is a better factor in calculating true wind than STW. 

Oh, BTW, we haven't yet installed this thing. But, if anyone is interested, message me off-list and I'll dig out the info for you.

Warren and Pattie Updike
1994 C320 "Warr de Mar" #62
Middle River, Chesapeake Bay

-----Original Message-----
From: Richard Wotruba [mailto:wotrubadick at yahoo.com] 
Sent: Wednesday, April 26, 2017 7:40 PM
To: c320-list at lists.catalina320.com
Subject: [C320-list] Speed paddle

Thanks for everyone's help regarding salt water under engine.Looks like it is raw water pump.I ordered new one from tr diesel hope it works.Next challenge does anyone know where to purchase new paddle wheel for speed instrument.     WindSong,hull 3,1993 thanks for support⛵️⛵️🙏😀✌️