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  #1  
Old 02-25-2017, 07:06 AM
markstrimaran markstrimaran is offline
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Join Date: Dec 2014
Rep: 28 Posts: 177
Location: usa
18' Trimaran built for camping. Cutter rigged.

Room for 4 adults.

Beach able.

8" draft with boards up.

Trailerable.

30 minutes to launch, in the dark. With minimal needed for assembly .

Unsinkable, foam laminated cored hull.

Completely dry cabin, waterproof in a rainstorm with
36" of head room.

Easy to sail, upwind ability.

Dual purpose, amas, can be removed, and it becomes a 15" fast River boat.

Built for less than $2000.00
This was on here before. I can't post to my old link, so I started a new thread. The boat has 3 years on it, since I started. It has undergone a lot of tweaking. It still has a few things that could be improved upon.

It needs primer ed areas to be painted, the dagger board/Lee board, setting a self tacking jib sail. The problem trailer fender that likes to vibrate loose.
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18' Trimaran built for camping.  Cutter rigged.-20150511_112847.jpg  
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  #2  
Old 03-24-2017, 07:48 PM
markstrimaran markstrimaran is offline
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Join Date: Dec 2014
Rep: 28 Posts: 177
Location: usa
pre season check off

Stepped the mast. Routed the halyards. Mounted the boom pivot. The spirit boom inserted in to bow.
Trampoline bolt rope is pulling out of track.
Still need a main sail cover that is trailerable.

Years past I had an hour to set up at the ramp. This year I want to keep as much of it set up and trailerable.

I need to get a self tacking lead sail arrangement. As any early season sailing is 20 to 30 knot gusts.
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  #3  
Old 03-28-2017, 09:06 AM
markstrimaran markstrimaran is offline
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Join Date: Dec 2014
Rep: 28 Posts: 177
Location: usa
pre season check off

Lawn sailing, repaired tramp pulling out of track.
Built some cable bridles to quickly adapt between 150 geona, and the storm jib.

I am going to try a swing keel mount on the steel ama cross arm.
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  #4  
Old 03-28-2017, 02:08 PM
markstrimaran markstrimaran is offline
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Join Date: Dec 2014
Rep: 28 Posts: 177
Location: usa
swing keel dagger boards

The sol cat ama, donor, has dagger board slots. The perfect spot to put a balanced keel, is 16" forward. The easiest place to put one is 30" forward, of the slot.
If I used both the rear dagger board, and a too far forward swing keel/ modified Lee board. Would this combo balance out the CE.
Or would the disturbed wake from the leading board, cause the following one problems.
It's a slow boat, maybe 10 mph max .
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  #5  
Old 03-28-2017, 08:47 PM
markstrimaran markstrimaran is offline
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Join Date: Dec 2014
Rep: 28 Posts: 177
Location: usa
swing keel dagger boards

Some pictures
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18' Trimaran built for camping.  Cutter rigged.-img_20170328_42952.jpg  18' Trimaran built for camping.  Cutter rigged.-img_20170328_0792.jpg  
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  #6  
Old 03-29-2017, 04:34 AM
markstrimaran markstrimaran is offline
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Join Date: Dec 2014
Rep: 28 Posts: 177
Location: usa
The brown pipe was the pivot point for the keel. It used the cross tube bolt holes, easy to mount. In stronger winds Lee helm was problem. I am going to try one on the cross arm, if it will hold.
Last resort will be fiberglass in a Lee board pivot point on the ama .
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  #7  
Old 04-02-2017, 07:28 AM
markstrimaran markstrimaran is offline
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Join Date: Dec 2014
Rep: 28 Posts: 177
Location: usa
20 mph sails

It's going to be a few weeks, of rain, and busy weekends, finished up the short list to be ready to sail.
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18' Trimaran built for camping.  Cutter rigged.-img_20170402_47576.jpg  
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  #8  
Old 04-25-2017, 02:09 PM
markstrimaran markstrimaran is offline
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Join Date: Dec 2014
Rep: 28 Posts: 177
Location: usa
first sail

The new keel balances the helm pretty good. Locked strait up and down, has slight weather helm. Pivoted back it start drifting to lee. The jib sail is pull all the way out, on the spirit boom.
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18' Trimaran built for camping.  Cutter rigged.-img_20170425_59554.jpg  
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