Marinaut Flotation and Double Bottom

Hi Rich,

You sure got that right. One of my previous boats was a 33' sail boat that had 7 berths, (I have 5 daughters). Of course the kids interest soon waned when they realised they could not bring 5 friends? (anyone else been there, done that?). So we sold it and lost a ton of $$$. When the kids left home (you empty nesters know how great that is), we wanted simple for two.
The C-Dory is #1.

Martin.
 
I would guess a fairly large component of the noise is a resonance in the v berth area. Probably would require extensive sound absorbing material on walls and ceiling of v berth to materially reduce the noise.
 
El and Bill, under "Inside Passage North (Alaska)" from "Cruising Alaska" describe how they and two other boatas were returning from fishing at dusk when one of them hit something (probably a piece of ice) and within minutes filled with water and sank. Bill doesn't give the make of the boat, but describes how they took of the crew of the other boat within minutes of their call and watched as it filled with water and sank!

You don't last long in cold water.

Tim and Dave Kinghorn
 
We removed the foam of our 22. It did not add to the noise at all. complete none issue.

c-nile. about space again. You have to understand that the older 22 have a lot more storage then the new ones and alot more I think then your Marinaut. The amount of space that we gained by removing the foam allowed us to not only carry more stuff, but allowed us to carry what we had in a better fashion. To the point, everything that was On the berth got moved to Under the berth. This allowed us to keep the gear off the dinette at night and off the berth in the day. That left these areas more open to use all the time. So maybe its not about how much you can carry as it is how you carry it. For me and susan removing the foam was the second most useful thing we did to the boat.
 
starcrafttom":2m7nh5uk said:
We removed the foam of our 22. It did not add to the noise at all. complete none issue.

c-nile. about space again. You have to understand that the older 22 have a lot more storage then the new ones and alot more I think then your Marinaut. The amount of space that we gained by removing the foam allowed us to not only carry more stuff, but allowed us to carry what we had in a better fashion. To the point, everything that was On the berth got moved to Under the berth. This allowed us to keep the gear off the dinette at night and off the berth in the day. That left these areas more open to use all the time. So maybe its not about how much you can carry as it is how you carry it. For me and susan removing the foam was the second most useful thing we did to the boat.

Actually, when I was comparing a Marinaut to a CD 22, I was taking into account the entire boat. I realize that the cabins are very similar. What makes a huge difference on the Marinaut is storage under the splashwell as a consequence of Dave Thompson's idea to utilize saddle tanks. Instead of having to store a small portable toilet under the berth, we freed up that entire space for storage by utilizing an even larger portable toilet (Thetford Curve) and storing it under the splashwell. Our cooler fits on the other side, and we still have space left such that the cockpit remains uncluttered. We could go further on our Marinaut by cutting into the flotation chambers under the berth so long as robust, watertight doors are installed, but for our simple needs, we have adequate space.

In our CD 16 cruiser, we used the space under the berth for storage, too. It was quite practical and I imagine that on the CD 22 as well, shifting weight forward aids in better trimming the boat making both boats easier to go onto plane. On the CD 16 Cruiser, it was almost a necessity to shift the weight away from the stern, because she was so stern heavy.

Was the CD 22 Cruiser designed to float if swamped? Does it need flotation? While I don't know the answer to that, if you look about the way the CD 16 was designed, it had a sealed air flotation chamber in the bow, flotation in the gunnels, and end core balsa in the hull. With a combination of all three things, she was designed to float upright and level.

In Connecticut, our waters are warm during most of the boating season. In the PNW your waters are always cold. It can be downright lethal. So speaking in general, I would not remove any USGA approved flotation on any boat put in place by a manufacturer, or cut into any sealed air flotation chamber without taking the necessary precautions. Removing sound deadening foam or insulation is a whole different story (as you stated for the CD 22) so I do understand, and would probably do the same as you to increase storage space so long as I stayed within the weight limits on the capacity plate.

Rich
 
C-Nile":4q1br19k said:
What makes a huge difference on the Marinaut is storage under the splashwell as a consequence of Dave Thompson's idea to utilize saddle tanks.

I sure hear you on that one. That (cavernous!) space under the splashwell in the Marinaut is super sweet :thup Really keeps clutter out of the cockpit. I have the fuel tanks out of my 22 right now, and the scary thing is that as I work, I'm getting used to having that space to tuck things into. I'm going to hate to give it up! That said, if I decide to keep the 22 long term, then I might look into having one or two saddle tanks made. I don't think they could be as large as the Marinuat's, but perhaps at least one after tank could be eliminated. That's a design/project for another day (or year! or maybe decade) though.

I think the CD-22 does make up for some of that space by not having the extensive hull liner in the cabin, and thus having deeper cabin lockers in some areas -- but it's not quite the same type of space.

C-Nile":4q1br19k said:
Was the CD 22 Cruiser designed to float if swamped?

On a gut level, I would guess no, looking at the installation, volume, and type of foam that was placed in the boats. Also, since a 22' boat is not required to float while swamped, I would think that if it were built to do that, the brochures and marketing would be touting it (since it would be an added "safety feature"). I may have missed it, but I have never heard of it in relation to the 22.

For myself, I just presume there is the slight possibility of the boat sinking, and because of that I would consider a dinghy or liferaft for certain situations. I don't think I'd want to give up the space for the required foam (or air) for that rare possibility, but then we are all different in that regard.

Sunbeam
 
C-Nile":1pah8cfj said:
There was a post on this site many year's ago in which a person said he saw (or knew of) a C-Dory factory test in which the factory purposefully flooded a CD 16 Cruiser, and it floated upright and level. I believe the person said that the result was impressive. That person's report was a major factor in our purchasing a CD 16 Cruiser several year's ago.
Rich

Rich,
I remember making a posting several years ago about this. In the old, old, old C-Dory factory (the one on old 99 in Kent, Wa.). There was a photo on the wall of the display room of a 16' C-Dory flooded to the gunnels with water and still floating upright. (This was in 1999 when we purchased our '99 16' Cruiser).
 
DaveS":1t0egulu said:
C-Nile":1t0egulu said:
There was a post on this site many year's ago in which a person said he saw (or knew of) a C-Dory factory test in which the factory purposefully flooded a CD 16 Cruiser, and it floated upright and level. I believe the person said that the result was impressive. That person's report was a major factor in our purchasing a CD 16 Cruiser several year's ago.
Rich

Rich,
I remember making a posting several years ago about this. In the old, old, old C-Dory factory (the one on old 99 in Kent, Wa.). There was a photo on the wall of the display room of a 16' C-Dory flooded to the gunnels with water and still floating upright. (This was in 1999 when we purchased our '99 16' Cruiser).

Yes Dave, it was your post that really helped us, and we never regretted our purchase. We enjoyed our CD 16 for four years, and while she was a wonderfully safe boat, she was too small for overnight stays for two people. If it was not for this website and people like you who unselfishly shared useful information, we would never have known about C-Dorys and their cousin, the Marinaut. Thank you,

Rich
 
Thanks Rich,
We too enjoyed our 16' and used it extensively on the Puget Sound, the San Juan's, Lake Roosevelt and Lake Chelan in Eastern Washington and Lake Shasta in California. Unfortunately it was just a bit small for our needs. Totally thrilled with our 22' Cruiser. (No interest in moving up or down in vessel size) :thup
 
Back
Top