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Catalina/Capri 25/250 Sailor's Forums

Catalina 250 Specific Forum

Thru Hull Sensor Location for 250 WB

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Keith D.
Navigator

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USA
233 Posts

Initially Posted - 03/04/2004 : 19:03:34

Where do you put the ray marine s60 speed and depth thru hull sensors on the 250 WB. I have tried to get the information from Catalina but they won't reply to their online form or the email that I send them directly.
I thought I saw a post on this earlier but it has gone to archive. How do you get into the archive posts?

Keith

Edited by - on

Arlyn Stewart
Master Marine Consultant

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USA
2980 Posts

Response Posted - 03/04/2004 : 19:22:16

Keith, under the V berth hatch you will see a large recessed cavity provided for instruments. The glass on mine was about 1 inch thick there but I think a depth sounder can either shoot thru or be a through hull installation. Of course a speedo will need a hole.

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Keith D.
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USA
233 Posts

Response Posted - 03/04/2004 : 20:59:36

Arlyn I do not see any large or small recessed cavity under the v birth hatch. Could it be covered over? This is one of the first 250 WB #8, were they putting this in from the beginning?

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Arlyn Stewart
Master Marine Consultant

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USA
2980 Posts

Response Posted - 03/04/2004 : 21:39:40

Thats interesting... evidently they didn't put the cavity in the very early models. That means you will have to put the instruments in the bilge under the aft berth or in the aft compartment though that would probably not be ideal for the sounder. If putting in the bilge, I'd consider one to the port and the other to the starboard within easy reach of the bilge access. This way they may be out of the turblence of the board fairly well and the center area will be saved if a seacock is ever added

The sounder shouldn't require a hole to work ok... just epoxy it to the hull after first testing it to insure that it will work fine in the area. There are a lot of ways to do the test, some say the easiest way is with creamy peanut butter.

The speedo could be located in the aft compartment but because the battery is centered, it would have to be aft of the battery or offset and that may give poor readings on the opposite tack.

offsetting them from the bilge access will mean that measurements will need to be taken carefully perhaps from the ballast valve shaft as if the holes are offset they will require drilling from outside in.

It's possilbe that you will get turbulence from the trunk or center board that will effect the speedo or sounder... but its about your only choice

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Frank Hopper
Past Commodore

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Pitcairn Island
6776 Posts

Response Posted - 03/04/2004 : 21:45:35

Arlyn,
Is it possible that he does not have the retrofit ballast compartment? I just read the other day that Catalina replaced the ballast compartments on the early boats. Could that have something to do with the missing cavity?

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Arlyn Stewart
Master Marine Consultant

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USA
2980 Posts

Response Posted - 03/04/2004 : 22:14:46

Frank, that could explain it. I knew that someone within the first couple of hull numbers commented on the tank being reworked... but I never got a sense that it went very far into the hull numbers. I've communicated over the years with a great many early hull numbers and the ballast tank wasn't raised as an issue other than by I think one person.

In order for the whole tank to be replaced... the deck would have to come off and the liner come out... that would likely have to be a factory effort.

btw, Keith, you asked about the archive.... I think we lost a lot of our archives a few months ago with the upgrade of forum software.

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Oscar
Master Marine Consultant

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USA
2030 Posts

Response Posted - 03/05/2004 : 07:35:22

I guess a somewhat experienced glass worker could easily retrofit a recess. In fact, with a little research you can probably do it yourself. I would look at another WB to determine location, cut a hole, and then measure and pre-form the "walls" on a plywood mould, and glass it into the hole.

<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"> just epoxy it to the hull<hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">

Arlyn, the Uniden sounder I just installed has a "cup" with angle adjustment, which I glued into the hull with sealant and then filled with mineral oil. The actual sender locks into this cup, with the oil filling the void completely. The obvious advantage being of course that if the sender dies, you just pull it out and replace it, instead of having to chisel out one that is epoxied in.

Oscar
250WB#618 Lady Kay on the Chesapeake

Edited by - Oscar on 03/05/2004 07:45:03

Keith D.
Navigator

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USA
233 Posts

Response Posted - 03/05/2004 : 10:35:24

Frank where was it you read about the blast tank retrofit? There have been several things about this ballast tank that just doesn’t seem right. The vent under the step instead of up front, all of the paint coming off of the inside of the tank and pilling up in big chips inside the tank, (I did get hold of Catalina on that one and they said it was no problem just wash the paint chips out of the tank), the fact the tank seems to need to be bigger up front (my boat with out anything in it, with the sails up sits 7 ½ inches above the waterline in the front. I can’t believe that the 100lb 9.9 Honda is doing all of that) and now this cavity for the instruments missing. All and all it seems that they missed on the first ballast tank design.

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Arlyn Stewart
Master Marine Consultant

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USA
2980 Posts

Response Posted - 03/05/2004 : 18:43:26

Keith,

Every new boat design experiences changes. Its one of the reasons many people avoid buying the first out of almost any product. The C25 folks see this and the same is true for the C250.

I don't let the changes concern me, the c250 is produced as a fairly spartan boat and this leaves opportunity to make it into what is needed for the kind of sailing that is contemplated. There are only a few changes that can't be made from your model to the later models.

Some of those changes, I'm in fact glad I didn't get but only because of the type of sailing I do. I'm glad for example, that I don't have the stern seats... where most probably consider them a very important feature. My bridle doesn't interfere with the wheel steering and the stern seats would never get used on my boat. I'm glad I don't have the butane locker eating up one of the cockpit lockers. I get by very well with the portable coleman cannisters and don't mind fetching them from the fuel locker to the galley when using the stove. Others would not want that hassle. The extra storage area allows stowage of a stern anchor, a 300 ft shore line, plenty of fenders and dock lines and a variety of other necissities for cruising.

The only upgrade that I wished I had, is the coaming step for boarding.

Regarding your boat balance... the c250 was designed obviously before 108 pound outboards were conceived. So, a modern 4 stroke is 30 lbs heavier than the boat was designed for. Having said that, 7.5 inches is more than I've ever experienced and I've had a month worth of supplies, a spare rudder, a 79 lb Honda outboard for the dinghy, and 10 cases of water, sport drink, sodas, and juice stored in the aft berth for cruising.

I do have 18 gal of fresh water in the V berth, 140 lbs of golf cart batteries and a 13 and 16 lb anchor each with 200 feet of chain and rode. It does set on its lines without all the cruising stuff in the aft berth. I prefer the V berth for sleeping because of the ventilation and easier access.

If adding batteries or water, do it up front to help get her on the lines.

Edited by - on

Frank Hopper
Past Commodore

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Pitcairn Island
6776 Posts

Response Posted - 03/05/2004 : 22:13:46

Practical Sailor summarizes the C-250 as follows: The C-250 is a purpose-built boat, adequate for daysailing or overnighting. It comes with a passel of standard features, not the least of which is a 5-year hull structure and gelcoat blister warranty. (Early hulls did have some serious hull problems, including a leak that influenced Catalina's decision to completely redesign the water ballast tank mold. But Catalina tells us the early hulls have all been retrofitted or are in the process of being corrected.)

From Mark's site:
http://www.texassailor.com/psc250.htm

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