Have All Cal Owner Web Sites Been Listed Under Links?

I enjoy reading Cal Boat web sites and I wanted to make sure all Cal Boat owners linked their sites to the "links" page provided by the Cal_Boat Yahoo site. It is located here: http://groups.yahoo.com/group/Cal_Boats/links If you have not already done so, please visit the link and enter a link to your boat web site. You can never get enough of a good thing!

when we had sailnet we did not have to go thu this sorry but we are simple people that love our cal why make tthis so difficult Dave paulson ----- Original Message ----- From: Bruce Stirling To: Ca… [at] yahoogroups.com Sent: Friday, July 27, 2007 5:19 PM Subject: [Cal_Boats] Have All Cal Owner Web Sites Been Listed Under Links? I enjoy reading Cal Boat web sites and I wanted to make sure all Cal Boat owners linked their sites to the "links" page provided by the Cal_Boat Yahoo site. It is located here: http://groups.yahoo.com/group/Cal_Boats/links If you have not already done so, please visit the link and enter a link to your boat web site. You can never get enough of a good thing!

I think Bruce was just extending an invitation, it's certainly not required. The groups website has a lot of features you can use, or not use, as you please. Bob Walden Cal 39-2 #003 "Sea Star" SF Bay, CA On 7/27/07, Paulson <dp… [at] socal.rr.com> wrote: > > when we had sailnet we did not have to go thu this > sorry but we are simple people that love our cal why make tthis so > difficult > Dave paulson > > ----- Original Message ----- > *From:* Bruce Stirling <br… [at] stirlinglaw.com> > *To:* Ca… [at] yahoogroups.com > *Sent:* Friday, July 27, 2007 5:19 PM > *Subject:* [Cal_Boats] Have All Cal Owner Web Sites Been Listed Under > Links? > > > > I enjoy reading Cal Boat web sites and I wanted to make sure all Cal > Boat owners linked their sites to the "links" page provided by the > Cal_Boat Yahoo site. It is located here: > > http://groups.yahoo.com/group/Cal_Boats/links > > If you have not already done so, please visit the link and > enter a link to your boat web site. You can never get enough > of a good thing! > > >

Exactly . . . no pressure. I'd just like to see what's out there. I guess I could just continue to Google "Cal Boats" and see what turns up. Bruce --- In Ca… [at] yahoogroups.com, "Bob Walden" <bob@...> wrote: > > I think Bruce was just extending an invitation, it's certainly not required. > The groups website has a lot of features you can use, or not use, as you > please. > > Bob Walden > Cal 39-2 #003 "Sea Star" > SF Bay, CA > > > On 7/27/07, Paulson <dpaulson@...> wrote: > > > > when we had sailnet we did not have to go thu this > > sorry but we are simple people that love our cal why make tthis so > > difficult > > Dave paulson > > > > ----- Original Message ----- > > *From:* Bruce Stirling <bruce@...> > > *To:* Ca… [at] yahoogroups.com > > *Sent:* Friday, July 27, 2007 5:19 PM > > *Subject:* [Cal_Boats] Have All Cal Owner Web Sites Been Listed Under > > Links? > > > > > > > > I enjoy reading Cal Boat web sites and I wanted to make sure all Cal > > Boat owners linked their sites to the "links" page provided by the > > Cal_Boat Yahoo site. It is located here: > > > > http://groups.yahoo.com/group/Cal_Boats/links > > > > If you have not already done so, please visit the link and > > enter a link to your boat web site. You can never get enough > > of a good thing! > > > > > > >

Yesterday, I stumbled across this site, which lists the Bangor Punta boats. Lots of old ads: http://www.bangorpunta.com/Cal/index.html --- In Ca… [at] yahoogroups.com, "Bruce Stirling" <bruce@...> wrote: > > Exactly . . . no pressure. I'd just like to see what's out there. I > guess I could just continue to Google "Cal Boats" and see what turns up. > > Bruce > > --- In Ca… [at] yahoogroups.com, "Bob Walden" <bob@> wrote: > > > > I think Bruce was just extending an invitation, it's certainly not > required. > > The groups website has a lot of features you can use, or not use, as you > > please. > > > > Bob Walden > > Cal 39-2 #003 "Sea Star" > > SF Bay, CA > > > > > > On 7/27/07, Paulson <dpaulson@> wrote: > > > > > > when we had sailnet we did not have to go thu this > > > sorry but we are simple people that love our cal why make tthis so > > > difficult > > > Dave paulson > > > > > > ----- Original Message ----- > > > *From:* Bruce Stirling <bruce@> > > > *To:* Ca… [at] yahoogroups.com > > > *Sent:* Friday, July 27, 2007 5:19 PM > > > *Subject:* [Cal_Boats] Have All Cal Owner Web Sites Been Listed Under > > > Links? > > > > > > > > > > > > I enjoy reading Cal Boat web sites and I wanted to make sure all Cal > > > Boat owners linked their sites to the "links" page provided by the > > > Cal_Boat Yahoo site. It is located here: > > > > > > http://groups.yahoo.com/group/Cal_Boats/links > > > > > > If you have not already done so, please visit the link and > > > enter a link to your boat web site. You can never get enough > > > of a good thing! > > > > > > > > > > > >

Yes Folks, The fin keel and spade rudder was a Nathanial Herreshoff idea, and I have the proof. Go to EBay and you can see it is used in his 1896 design, in fact, the boat is in Wilmington California, is in great condition and for sale, the bid is currently only $300. Freshly painted, and Fiberglas over wood! If you look at the under body of the Lapworth 40 you can see that the Cal 40 is the same as the Fiberglas version. The fin is the same, except the rudder is removed and a spade rudder installed at the rear, albeit looking more like the tail fin of an F-86 Saberjet turned upside down. Jerry

--- In Ca… [at] yahoogroups.com, Gerald Sobel <sobel_solar@...> wrote: > > Yes Folks, > The fin keel and spade rudder was a Nathanial Herreshoff idea, and I have the proof. Go to EBay and you can see it is used in his 1896 design, in fact, the boat is in Wilmington California, is in great condition and for sale, the bid is currently only $300. Freshly painted, and Fiberglas over wood! Where ? Which Herreschoff ? There were several. The skimming dish racers of the 1890s were briefly popular but I'm not aware of spade rudders widely used until Lapworth. Except in dinghies. That's where he got the idea. > > If you look at the under body of the Lapworth 40 you can see that the Cal 40 is the same as the Fiberglas version. What does that mean ? Lapworth modified a few of his L 50s later and added a spade rudder. I don't know about a Lapworth 40 but he might have designed a custom boat that size. The L 36 had an attached rudder. As did his custom designs like Nalu II. The fin is the same, except the rudder is removed and a spade rudder installed at the rear, albeit looking more like the tail fin of an F-86 Saberjet turned upside down. > > Jerry Where are the photos ? Mike Kennedy Conquest Cal 40 # 96 >

--- In Ca… [at] yahoogroups.com, "mtkennedy1" <mtkennedy1@...> wrote: > > If you look at the under body of the Lapworth 40 you can see that the Cal 40 is the same > as the Fiberglas version. > > What does that mean ? Lapworth modified a few of his L 50s later and added a spade > rudder. I don't know about a Lapworth 40 but he might have designed a custom boat that > size. The L 36 had an attached rudder. As did his custom designs like Nalu II. > > The fin is the same, except the rudder is removed and a spade rudder installed at the rear, > albeit looking more like the tail fin of an F-86 Saberjet turned upside down. > > > > Jerry > I found a Lapworth 40 here: <http://www.yachtworld.com/core/listing/boatFullDetails.jsp? boat_id=1578571&ybw=&units=Feet&currency=USD&access=Public&listing_id=1836&url => There were a few of them, all custom built for 1959 to 1961, when this one was built. I'm sure they were designed with an attached rudder but, as he did with a couple of L 50s, he may have added a spade rudder as a later modification. > > Mike Kennedy > Conquest Cal 40 # 96 > > >

Mike, I miss wrote, the Cal 40 has same underbody as the wooden Lapworth 40. If you remove the hemispherical rudder off the Lapworth 40 you have the Cal 40 fin, which now has a straight trailing edge with the rudder gone. Then on goes the sabrejet tailfin on the stern of the fiberglas Cal 40, and, presto, Transpac champ.. I don't have the numbers but the Herreshoff is on Ebay, in Wilmington. Just put in Sailboats ranked by distance from where you are. There are photos of this boat on the Ebay site as it was in the boatyard. Oh, its fun to stir up a little controversy! Meanwhile, I'm thinking of tying a small sea anchor to the keel of a certain Columbia Challenger, or two, so I can beat them for once. Gee, on the other hand, maybe its time to haul me boat, but heck, its only been ten years and the diver says me bottom is still only just POOR and not yet NO PAINT. Aaaarrghhh! Jerry mtkennedy1 <mt… [at] cox.net> wrote: --- In Ca… [at] yahoogroups.com, "mtkennedy1" <mtkennedy1@...> wrote: > > If you look at the under body of the Lapworth 40 you can see that the Cal 40 is the same > as the Fiberglas version. > > What does that mean ? Lapworth modified a few of his L 50s later and added a spade > rudder. I don't know about a Lapworth 40 but he might have designed a custom boat that > size. The L 36 had an attached rudder. As did his custom designs like Nalu II. > > The fin is the same, except the rudder is removed and a spade rudder installed at the rear, > albeit looking more like the tail fin of an F-86 Saberjet turned upside down. > > > > Jerry > I found a Lapworth 40 here: <http://www.yachtworld.com/core/listing/boatFullDetails.jsp? boat_id=1578571&ybw=&units=Feet&currency=USD&access=Public&listing_id=1836&url => There were a few of them, all custom built for 1959 to 1961, when this one was built. I'm sure they were designed with an attached rudder but, as he did with a couple of L 50s, he may have added a spade rudder as a later modification. > > Mike Kennedy > Conquest Cal 40 # 96 > > >

Here is the Ebay listing mentioned: http://cgi.ebay.com/ebaymotors/1896-45-HERRESHOFF-SAILBOAT_W0QQitemZ220134545246QQihZ012QQcategoryZ63731QQssPageNameZWDVWQQrdZ1QQcmdZViewItem If it is too long for the listserv page to display, cut and paste all of it into your browser's address line.

--- In Ca… [at] yahoogroups.com, "Bruce Stirling" <bruce@...> wrote: > > Here is the Ebay listing mentioned: > > http://cgi.ebay.com/ebaymotors/1896-45-HERRESHOFF- SAILBOAT_W0QQitemZ220134545246QQihZ012QQcategoryZ63731QQssPageNameZWDV WQQrdZ1QQcmdZViewItem > > If it is too long for the listserv page to display, cut and paste all > of it into your browser's address line. What a mess ! That is not a spade rudder, by the way. Those old fan rudders were not uncommon years ago but the center of effort of that rudder is not aft of the keel. It would act like a barn door rudder. Mike Kennedy Conquest Cal 40 # 96 The Lapworth 40 that I found in San Diego is a pretty boat and in decent shape. Wood boats are much smaller inside than fiberglass, which is the reason why George Griffith wanted something bigger than his L 36. >

Mike, how do you define a spade rudder? I define it as a rudder supported solely by the shaft instead of being hinged to a skeg. Yes, it looks more like a snow shovel spade, as wide as it is long. There is indeed a significant gap between the keel and the rudder. Of course the rudder is more oval shaped, with an even lower aspect ratio than Lapworth's jet tailfin shape of the original Cal 40, but then again, Lapworths tailfin rudder is a far cry from the later Schumaker designed shaped rudder typical of the latest types of sailboat rudders. And, just look at the rudder on an America's cup boat, REALLY hi aspect ratio! In my truck I have spades with squared ends, and spades with oval shapes, and spades with oval-pointed ends, but they are all spades. As far back as the Herreshoff rudder is from the fin keel, how can you say that its center of effort isn't aft of the center of the keel? And yes, the foil is flat, but it is a foil since it acts like a foil, just like a cheap balsa glider's. The keel on a Starboat is also a flat piece of steel, and so is my centerboard, inefficient yes, but a foil none the less. If it looks like a foil, acts like a foil, and turns the boat by the same principles as a foil, generating a vortex, it is a foil. As they say "Foiled again!" Jerry mtkennedy1 <mt… [at] cox.net> wrote: --- In Ca… [at] yahoogroups.com, "Bruce Stirling" <bruce@...> wrote: > > Here is the Ebay listing mentioned: > > http://cgi.ebay.com/ebaymotors/1896-45-HERRESHOFF- SAILBOAT_W0QQitemZ220134545246QQihZ012QQcategoryZ63731QQssPageNameZWDV WQQrdZ1QQcmdZViewItem > > If it is too long for the listserv page to display, cut and paste all > of it into your browser's address line. What a mess ! That is not a spade rudder, by the way. Those old fan rudders were not uncommon years ago but the center of effort of that rudder is not aft of the keel. It would act like a barn door rudder. Mike Kennedy Conquest Cal 40 # 96 The Lapworth 40 that I found in San Diego is a pretty boat and in decent shape. Wood boats are much smaller inside than fiberglass, which is the reason why George Griffith wanted something bigger than his L 36. >

--- In Ca… [at] yahoogroups.com, Gerald Sobel <sobel_solar@...> wrote: > > Mike, how do you define a spade rudder? > > I define it as a rudder supported solely by the shaft instead of being hinged to a skeg. Yes, it looks more like a snow shovel spade, as wide as it is long. I guess you can call it a spade if you want to. My concept of the spade rudder is that it is separated from the keel and acts at a distance to increase leverage in turning the boat. It also adds lift aft of the keel. The old barn door rudders were attached to the keel, then there were some intermediate types and that one is an example. The concept as I understand it is similar to the concept of the yawl vs ketch. A yawl has the center of effort of the mizzen aft of the rudder post and this makes quite a bit of difference in the effect on handling. The ketch is more of a divided rig with the center of effort forward of the rudder post. The spade rudder was well aft and the only real purpose of having one is to get it away from the keel so it was acting in less turbulence and with a greater lever arm. If you want the rudder that close to the keel, why not attach it for more strength ? The argument against spade rudders was that then load was too great on the rudder post. This wasn't true because the lever arm of the separated rudder menat less load on the rudder post. The paddle shaped rudder in that photo is unsupported, as best I can tell, but is still acting without the mechanical advantage of the lever arm. The worst of both worlds. Aspect ratio came along later with better materials in sails and rudders. The super high aspect ratio keels we see now required the light boats wth high boat speed to work. I don't think they have enough lift at low speed. A Cal 40 with a higher aspct ratio keel is faster but is it a Cal 40 ? Maybe if Montgomery Street goes in another Transpac, we'll find out. Mike Kennedy Conquest Cal 40 # 96

My recent battery explosion made me wonder what I was doing wrong with my battery and boat. I leave it unattended at the marina for a month or two or three at a time. I leave the shore power connected and the batteries turned off. I also leave the battery charger on at all times, which is the subject of this post. My reading suggests the charger should be "off" when no one is on the boat to avoid problems. What is acceptable practice? Am I way off base? My Ebay purchase did not come with any instructions. Any and all comments appreciated. Bruce Gangfurd Cal 28 - No. 82 http://www.stirlinglaw.com/cal28

--- In Ca… [at] yahoogroups.com, "Bruce Stirling" <bruce@...> wrote: > > My recent battery explosion made me wonder what I was doing wrong with > my battery and boat. I leave it unattended at the marina for a month > or two or three at a time. I leave the shore power connected and the > batteries turned off. I also leave the battery charger on at all > times, which is the subject of this post. My reading suggests the > charger should be "off" when no one is on the boat to avoid problems. I have a smart charger and leave it on all the time. You may want to check the type of charger and whether it is wired correctly. Other than that, I have no suggestions. Mike Kennedy Conquest Cal 40 # 96 > > What is acceptable practice? Am I way off base? My Ebay purchase did > not come with any instructions. Any and all comments appreciated. > > Bruce > Gangfurd > Cal 28 - No. 82 > http://www.stirlinglaw.com/cal28 >

Mike, On the Herreshoff boat don't think they could have gotten the 'spade rudder' much further towards the stern because of the huge overhangs on the boat, the spade would have been out of the water. There IS a considerable separation between the keel and the paddle shaped rudder, at least six or more feet? The boat is 45' long. The thickness, or diameter of the rudder post can be seen in that it bulges out from the rudder surface, the whole assembly is probably made of iron or steel. Herreshoff certainly was far ahead of his time, for example, he designed a racing catamaran which was so fast it was immediately banned from competition. Finally, I don't think speed is necessary for a high aspect ratio foil to work, as long as the thickness to chord ratio is in the range of between 8 to one and 12:1. After all, sailplanes use extremely long, short chord wings to generate gobs of lift efficiently. Even the more modern hang gliders, which must take off or land in 15+mph of apparently wind speed have progressively higher aspect wings. The longer wing trades greater parasitic drag for reduced induced drag. But it takes modern high strength materials to have a long keel that is both thin and short chorded that can carry a heavy heavy bulb keel. One thing I'll agree with,and that is, when forward speed goes to zero, there is little little parasitic area to keep wind from pushing the hull sideways or leaving it stalled dead in the water. I found that out playing with a computer program which used America's Cup boats in Match Racing. Jerry mtkennedy1 <mt… [at] cox.net> wrote: --- In Ca… [at] yahoogroups.com, Gerald Sobel <sobel_solar@...> wrote: > > Mike, how do you define a spade rudder? > > I define it as a rudder supported solely by the shaft instead of being hinged to a skeg. Yes, it looks more like a snow shovel spade, as wide as it is long. I guess you can call it a spade if you want to. My concept of the spade rudder is that it is separated from the keel and acts at a distance to increase leverage in turning the boat. It also adds lift aft of the keel. The old barn door rudders were attached to the keel, then there were some intermediate types and that one is an example. The concept as I understand it is similar to the concept of the yawl vs ketch. A yawl has the center of effort of the mizzen aft of the rudder post and this makes quite a bit of difference in the effect on handling. The ketch is more of a divided rig with the center of effort forward of the rudder post. The spade rudder was well aft and the only real purpose of having one is to get it away from the keel so it was acting in less turbulence and with a greater lever arm. If you want the rudder that close to the keel, why not attach it for more strength ? The argument against spade rudders was that then load was too great on the rudder post. This wasn't true because the lever arm of the separated rudder menat less load on the rudder post. The paddle shaped rudder in that photo is unsupported, as best I can tell, but is still acting without the mechanical advantage of the lever arm. The worst of both worlds. Aspect ratio came along later with better materials in sails and rudders. The super high aspect ratio keels we see now required the light boats wth high boat speed to work. I don't think they have enough lift at low speed. A Cal 40 with a higher aspct ratio keel is faster but is it a Cal 40 ? Maybe if Montgomery Street goes in another Transpac, we'll find out. Mike Kennedy Conquest Cal 40 # 96

Damn! there is something you never do to a wooden boat that you want to keep! i bet the inside of that thing smells like a little-used dripping shower somewhere in the back-country on the north-shore of Oahu...... :)(: and as for spade-rudder's; isn't one of the requirements of the true Bill Lapworth legacy; where it comes to *The Spade Rudder*. the fact that it intersects the plain of the hull so closely as too us it like Boeing uses *wing-lets* on the ends of it's big jet's to stop *Vortices* and increase aerodynamic efficiency. i mean, i may be speaking out of turn here, but i really don't care where you hang that billboard off the bottom of that rotting dock-warmer. but it's never going to be a spade in my deck of cards...... fiver, Master of The "BB-54" one of the famous Cal-28 flush-decks out of Sierra-5, Papa Hotel (in days gone by) now hove-too, not 10' south of my front porch; in my Sister Karen's one acre back yard....... (built like a Battleship; sails like a Sub......) ************************************** --- In Ca… [at] yahoogroups.com, Gerald Sobel <sobel_solar@...> wrote: > > Mike, > On the Herreshoff boat don't think they could have gotten the 'spade rudder' much further towards the stern because of the huge overhangs on the boat, the spade would have been out of the water. There IS a considerable separation between the keel and the paddle shaped rudder, at least six or more feet? The boat is 45' long. The thickness, or diameter of the rudder post can be seen in that it bulges out from the rudder surface, the whole assembly is probably made of iron or steel. > > Herreshoff certainly was far ahead of his time, for example, he designed a racing catamaran which was so fast it was immediately banned from competition. > > Finally, I don't think speed is necessary for a high aspect ratio foil to work, as long as the thickness to chord ratio is in the range of between 8 to one and 12:1. After all, sailplanes use extremely long, short chord wings to generate gobs of lift efficiently. Even the more modern hang gliders, which must take off or land in 15+mph of apparently wind speed have progressively higher aspect wings. The longer wing trades greater parasitic drag for reduced induced drag. But it takes modern high strength materials to have a long keel that is both thin and short chorded that can carry a heavy heavy bulb keel. One thing I'll agree with,and that is, when forward speed goes to zero, there is little little parasitic area to keep wind from pushing the hull sideways or leaving it stalled dead in the water. I found that out playing with a computer program which used America's Cup boats in Match Racing. > > Jerry > > mtkennedy1 <mtkennedy1@...> wrote: --- In Ca… [at] yahoogroups.com, Gerald Sobel <sobel_solar@> wrote: > > > > Mike, how do you define a spade rudder? > > > > I define it as a rudder supported solely by the shaft instead of being hinged to a skeg. > Yes, it looks more like a snow shovel spade, as wide as it is long. > > I guess you can call it a spade if you want to. My concept of the spade rudder is that it is > separated from the keel and acts at a distance to increase leverage in turning the boat. It > also adds lift aft of the keel. The old barn door rudders were attached to the keel, then > there were some intermediate types and that one is an example. The concept as I > understand it is similar to the concept of the yawl vs ketch. A yawl has the center of effort > of the mizzen aft of the rudder post and this makes quite a bit of difference in the effect > on handling. The ketch is more of a divided rig with the center of effort forward of the > rudder post. The spade rudder was well aft and the only real purpose of having one is to > get it away from the keel so it was acting in less turbulence and with a greater lever arm. If > you want the rudder that close to the keel, why not attach it for more strength ? The > argument against spade rudders was that then load was too great on the rudder post. This > wasn't true because the lever arm of the separated rudder menat less load on the rudder > post. The paddle shaped rudder in that photo is unsupported, as best I can tell, but is still > acting without the mechanical advantage of the lever arm. The worst of both worlds. > > Aspect ratio came along later with better materials in sails and rudders. The super high > aspect ratio keels we see now required the light boats wth high boat speed to work. I don't > think they have enough lift at low speed. A Cal 40 with a higher aspct ratio keel is faster > but is it a Cal 40 ? Maybe if Montgomery Street goes in another Transpac, we'll find out. > > Mike Kennedy > Conquest Cal 40 # 96 >

I've always left the battery charger on. A cheap charger from a big box store might not be safe, but a proper 'smart' charger should not overcharge the batteries, it should just 'float' them. If you have conventional flooded cell batteries, do check the level regularly. td From: Ca… [at] yahoogroups.com [mailto:Ca… [at] yahoogroups.com]On Behalf Of Bruce Stirling Sent: Saturday, July 28, 2007 9:02 PM To: Ca… [at] yahoogroups.com Subject: [Cal_Boats] Question re: Battery Care My recent battery explosion made me wonder what I was doing wrong with my battery and boat. I leave it unattended at the marina for a month or two or three at a time. I leave the shore power connected and the batteries turned off. I also leave the battery charger on at all times, which is the subject of this post. My reading suggests the charger should be "off" when no one is on the boat to avoid problems. What is acceptable practice? Am I way off base? My Ebay purchase did not come with any instructions. Any and all comments appreciated. Bruce Gangfurd Cal 28 - No. 82 http://www.stirling <http://www.stirlinglaw.com/cal28> law.com/cal28 DISCLAIMER: Important Notice ************************************************* This e-mail may contain information that is confidential, privileged or otherwise protected from disclosure. If you are not an intended recipient of this e-mail, do not duplicate or redistribute it by any means. Please delete it and any attachments and notify the sender that you have received it in error. Unintended recipients are prohibited from taking action on the basis of information in this e-mail.E-mail messages may contain computer viruses or other defects, may not be accurately replicated on other systems, or may be intercepted, deleted or interfered with without the knowledge of the sender or the intended recipient. If you are not comfortable with the risks associated with e-mail messages, you may decide not to use e-mail to communicate with IPC. IPC reserves the right, to the extent and under circumstances permitted by applicable law, to retain, monitor and intercept e-mail messages to and from its systems.

Bruce, The only battery that I've ever had explode had clearly been abused. Be careful of over-torquing the battery cables when installing them. Less of a factor with a quality marine battery, but still possible to damage them if installed and removed a few times with too much enthusiasm. David Wilkie Owen Cal 2-29 "Mariposa" Santa Barbara, CA http://www.mariposasailing.com From: Ca… [at] yahoogroups.com [mailto:Ca… [at] yahoogroups.com] On Behalf Of Bruce Stirling Sent: Saturday, July 28, 2007 6:02 PM To: Ca… [at] yahoogroups.com Subject: [Cal_Boats] Question re: Battery Care My recent battery explosion made me wonder what I was doing wrong with my battery and boat. I leave it unattended at the marina for a month or two or three at a time. I leave the shore power connected and the batteries turned off. I also leave the battery charger on at all times, which is the subject of this post. My reading suggests the charger should be "off" when no one is on the boat to avoid problems. What is acceptable practice? Am I way off base? My Ebay purchase did not come with any instructions. Any and all comments appreciated. Bruce Gangfurd Cal 28 - No. 82 http://www.stirlinglaw.com/cal28 <http://www.stirlinglaw.com/cal28>

Youse guys want to solve this battery problem? Try a PulseTech Solargizer. Not only will it keep your batteries charged, it will restore tired batteries. I put a Power Pulse 12 on my tired six year old storage battery which would hold a charge worth a darn, and over the last six months the battery has gotten stronger and stronger and stronger. I used a Schumacher 6 amp automatic charger which I leave on the battery. It is a pretty rugged unit sealed in plastic. I bought it from West Marine some years ago, but until I got the pulsetech unit it wasn't able to restore the battery unless we tried over charging it or blasting it with another automotive unit set a few minutes in the 50 amp 'start engine' position to blast lose the sulfation. I have a Trojan 24 series batter. It is now holding charge better than it has in four years! Check it out. www.pulsetech.net This company had a write up in Popular Science at least 15 years ago. It's technology really does work. I can testify to it. Jerry "Downing, Thomas" <Th… [at] ipc.com> wrote: I've always left the battery charger on. A cheap charger from a big box store might not be safe, but a proper 'smart' charger should not overcharge the batteries, it should just 'float' them. If you have conventional flooded cell batteries, do check the level regularly. td -----Original Message----- From: Ca… [at] yahoogroups.com [mailto:Ca… [at] yahoogroups.com]On Behalf Of Bruce Stirling Sent: Saturday, July 28, 2007 9:02 PM To: Ca… [at] yahoogroups.com Subject: [Cal_Boats] Question re: Battery Care My recent battery explosion made me wonder what I was doing wrong with my battery and boat. I leave it unattended at the marina for a month or two or three at a time. I leave the shore power connected and the batteries turned off. I also leave the battery charger on at all times, which is the subject of this post. My reading suggests the charger should be "off" when no one is on the boat to avoid problems. What is acceptable practice? Am I way off base? My Ebay purchase did not come with any instructions. Any and all comments appreciated. Bruce Gangfurd Cal 28 - No. 82 http://www.stirlinglaw.com/cal28 DISCLAIMER: Important Notice ************************************************* This e-mail may contain information that is confidential, privileged or otherwise protected from disclosure. If you are not an intended recipient of this e-mail, do not duplicate or redistribute it by any means. Please delete it and any attachments and notify the sender that you have received it in error. Unintended recipients are prohibited from taking action on the basis of information in this e-mail.E-mail messages may contain computer viruses or other defects, may not be accurately replicated on other systems, or may be intercepted, deleted or interfered with without the knowledge of the sender or the intended recipient. If you are not comfortable with the risks associated with e-mail messages, you may decide not to use e-mail to communicate with IPC. IPC reserves the right, to the extent and under circumstances permitted by applicable law, to retain, monitor and intercept e-mail messages to and from its systems.