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CS20 mk.2


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  #1 Designer

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Posted 23 April 2012 - 07:16 PM

It has been a long time coming. We have finally started prototyping the CS20 kit. I am calling it mark 2 because I have done a major revision in preparation for the tool pathing for kit production. I have had a lot of requests for a cuddy cabin and a self draining cockpit. I raised the freeboard 2" and gave her more deadrise. The extra freeboard helps the make the cabin work better and allows the cockpit to be raised allowing us to fit water ballast. It also raises the point of vanishing stability which will be further enhanced with ballast. Here she is. Attached File  CS20 mk2 1.jpg   91.51KB   238 downloadsAttached File  CS20mk2.jpg   92.35KB   204 downloads
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  #2 Mike Vacanti

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Posted 24 April 2012 - 11:44 AM

Does the increased deadrise also increase the draft? If I remember correctly the draft on the original CS20 is 8", what is the draft of mk.2?

  #3 MisterMoon

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Posted 24 April 2012 - 12:11 PM

He mentioned increased freeboard, not deadrise. This looks interesting. I'm wondering about the need for water ballast, though. I can see where it would be nice sometimes but not always. I'd love for my 17 to be self bailing!
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  #4 Mike Vacanti

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Posted 24 April 2012 - 02:04 PM

If you reread the original post you'll see that he mentions that he also increased the deadrise. p.s. I really enjoyed reading your write up of the EC2012 on Sailing Anarchy.

  #5 hokeyhydro

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Posted 24 April 2012 - 02:52 PM

Quote: "I raised the freeboard 2" and gave her more deadrise." Most likely will increase draft, but it appears that Graham is going for a comfy cruiser with a cabin. Throw a potti in there and instant selling points to the women. For some reason hanging tail over the stern doesn't appeal to many fems.

  #6 Designer

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Posted 25 April 2012 - 07:10 PM

Here is the latest picture. While the extra deadrise will increase the draft slightly, it does increase volume which will take back some of the extra draft. I forgot to measure the draft today at normal load so I can't give a precise number. Rather than a problem, I see the deadrise as an advantage in shoal waters. When a flat bottom boat runs aground it is really aground rather than a V bottom which lets you heel the boat to reduce the draft after running aground allowing you get back into deeper water. The water ballast is there if you feel the need for it. It is unproven for this boat at this time. I will report on it after a thorough testing The picture shows the three bulkheads in place. The forward bulkhead ties into the tabernacle, the deckbeam defines the foredeck and house front, the center bulkhead shows the forward end of the cockpit and the aft end of the cabin. You can see the slot for the trunk which is offset to port increase room in the cabin.Attached File  CS20 mk2 5.jpg   123.73KB   206 downloads Here is the latest picture. While the extra deadrise will increase the draft slightly, it does increase volume which will take back some of the extra draft. I forgot to measure the draft today at normal load so I can't give a precise number. Rather than a problem, I see the deadrise as an advantage in shoal waters. When a flat bottom boat runs aground it is really aground rather than a V bottom which lets you heel the boat to reduce the draft after running aground allowing you get back into deeper water. The water ballast is there if you feel the need for it. It is unproven for this boat at this time. I will report on it after a thorough testing The picture shows the three bulkheads in place. The forward bulkhead ties into the tabernacle, the deckbeam defines the foredeck and house front, the center bulkhead shows the forward end of the cockpit and the aft end of the cabin. You can see the slot for the trunk which is offset to port increase room in the cabin.Attached File  CS20 mk2 5.jpg   123.73KB   206 downloads
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  #7 MisterMoon

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Posted 23 May 2012 - 09:37 AM

While I was on a 5 day 4 night cruise on my CS17, I found myself thinking a lot about this new CS20 and how it would be ideal for what I want to do with my boat. Is the cabin going to big enough to sleep in? Also, I'm interested in how you are going to do the cockpit arrangement. I'd want a large bridgedeck forward of the mizzen and a comparatively small footwell behind the thwart. I find on both the CS17 and CS20 the centerboard clutters up the forward footwells too much to be comfortable. It's nicer to have a big flat up there instead of the narrow wells IMO. Ideally there would be easily accessible and lockable stowage under that bridge deck. I keep saying I'm done building boats, but this one may lure me out of retirement...
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  #8 cchilders1

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Posted 24 May 2012 - 04:39 AM

Hello, all. I am curious if the non-kit form of the CS 20 will incorporate these changes. That is, will the plans mirror the changes made in the kit? i am interested in a CS 20 for beach cruising mainly down in Florida. It would be nice to have a cuddy so i can get out of the weather and the bugs.

  #9 Designer

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Posted 06 June 2012 - 07:27 PM

Here is the latest picture. The self draining cockpit is in and the bunk tops with hatches are finished. You can see the offfset trunk, the picture makes the top of the trunk look out of plane with the seats but it is in plane. There will be a bridge deck abaft the cabin and the narrow area to port of the trunk will be decked over. The hole in the cockpit sole forward is for access to the water ballast plumbing. The next hole aft is the mizzen mast step which is on center. I will be making the plans available as well as the kit.Attached File  CS20 mk2 6.jpg   138.53KB   167 downloads
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  #10 Steve W

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Posted 07 June 2012 - 10:01 AM

Graham, This really looks sweet. I'm just finishing a S11N (thanks for getting me the sail....christening it soon) as a practice run to build something bigger. this looks like just the ticket. I can't wait to see what it weighs, and what it looks and performs like. Keep the pictures coming. Take Care, Steve

  #11 kiwiboatbuilder

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Posted 05 July 2012 - 06:54 AM

Graham, Do you have any timeline on when you might plan to have a kit available by please? Would it be possible to see a profile drawing of the design please? you mention the narrow area to port of the trunk will be decked over. How long will it be? Could it be a fishing rod storage area if some rod tubes were insert into the forward bulkead aka typical bassboat style? Just wondering. what you have shown so far looks great. Thanks Rich.

  #12 Steve W

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Posted 02 August 2012 - 08:56 AM

Any more progress? Pictures? This design is the one I'm most interested in. Take Care, Steve

  #13 tom151

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Posted 02 August 2012 - 09:26 AM

Any more progress? Pictures? This design is the one I'm most interested in.


+1

  #14 kiwiboatbuilder

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Posted 21 August 2012 - 08:41 AM

Bump - any more pics or a line drawing please? Please?

  #15 Designer

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Posted 22 August 2012 - 09:01 PM

Here are a couple of newer pictures. We are hoping to be sailing at the messabout.Attached File  CS20 2 20.jpg   86.59KB   144 downloadsAttached File  CS20 2 tabernacle.jpg   131.12KB   137 downloads
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  #16 Steve W

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Posted 23 August 2012 - 02:18 PM

That looks really promising. I have always lusted after a drascombe coaster just because it was light enough to pull with a small car, had shallow draft, a mizzen, and a small cabin. to have all that and what will pobably be great perfromance is exciting. By the time you have plans for sale, my wife may be over her moratorium on basement boat building. Take Care, Steve

  #17 Chick Ludwig

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Posted 24 August 2012 - 08:27 PM

I' the owner/builder along with Graham of the CS20 Mk 2. The boat is ready for epoxy cote and paint. Next job is to build the spars. I've deviated from the plan a bit in that I've added a regular sliding companionway hatch, and a bow sprit for the anchor.Attached File  DSC00644.JPG   98.73KB   108 downloadsAttached File  DSC00643.JPG   91.07KB   162 downloadsAttached File  002.JPG   119.02KB   170 downloadsAttached File  003.JPG   97.02KB   168 downloadsAttached File  004.JPG   94.75KB   136 downloadsAttached File  DSC00478.JPG   102.58KB   146 downloadsAttached File  002 (3).JPG   102.06KB   135 downloadsAttached File  006 (2).JPG   126.63KB   119 downloads Everything is coming together nicely---I'm very pleased. We'll definitely be at the messabout, and giving rides. I'll post some recent pictures if I can figure out how.

  #18 ecgossett

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Posted 24 August 2012 - 09:23 PM

That water ballast wouldn't make a bad fresh water tank if you where to filter it afterwords. Long showers anyone?
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  #19 wkisting

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Posted 25 August 2012 - 06:45 AM

Looks great! Should make for an outstanding weekend/multi-day cruiser that retains much of the simplicity and "open" feel of the original. I've thought many times that if I were building my CS20 over again, I would raise the forward deck and install a flat floor to make the forward area more usable ... especially as a space for my little girls to play when underway. After our previous boat (a Stevenson Pocket Cruiser), I don't think I'd want a boat with a true cabin again, but this one looks very appealing.
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  #20 Chick Ludwig

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Posted 25 August 2012 - 08:18 AM

There is plenty of sleeping room in the cabin, and sitting head room. The w/c goes under the v-berth forward. There is a footwell just the right size. With the c.b. trunk offset, it isn't in the way. Water ballast tank to drink??? Not sailing in salt water! :huh: Even with the cabin, there is still lots of room in the cockpit for a crowd.




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