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Boat Plans Catamaran | Fiberglass Tape epoxy encapsulation

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Boat Plans Catamaran


Yesterday was a bomber of a day.  Total Goat Island Skiff immersion.  Well over 14 hours of spanking.

Basically, I want to float test this boat.  My pond, frozen with several feet of New Hampshire ice iced out overnight.  I woke up two mornings ago to find that the ice cap had literally disappeared, and the boat was not ready.  So the hustle began.

First, I planed to fit a 3/8" poplar dowel for the the bow.  I scratched up the epoxy on the bow, scratched up the dowel, and stuck it on.  This will be glassed over with fiberglass tape.

I held it on with painters tape.

Then, off to the races.  Taping the chines with fiberglass tape (FT) is easy, and kind of rewarding.  First, I measured the tape to fit the chine, and cut it off.  Then I slopped on some unthickened epoxy along the chine, and placed the tape along it, dabbing it down to hold it in place.  This tape has a "selvage" edge to it, which according to the plans should be removed.  Basically, its a plastic string that holds the fabric together, but its a real pain in the ass to sand down, or so I am told.  It came out really smooth on the fiberglass I used for the blades, but on this FT it just mocked me incessantly.  So I said "screw it!" and glued it down with the edge on the bottom.  In case I couldnt sand it down at least it would partly hidden.  After the tape is laid down in position, I slopped on epoxy to wet it out and get it to stick.  Work from the middle to the ends of the boat.  Some gentle tugging got it in a good straight line and evenly over the rounded chine (round with a few passes of a plane and hit it with the sander).


 I did this to both sides, and the bottom/transom joint.  Im not sure if the side/transom joint needs to be done or not, and I can always do that later.  The bow will be glassed when the epoxy has cured on the dowel and I can fair it to the hull.

After that came the fun fun job of spreading the epoxy on the bottom and the sides.  I did the bottom first while I debated how to do the sides.



 I did not pre-coat my panels because A: I wanted to see my boat! and B: I wanted to ensure the most effective gluing surfaces and I did not feel like taping their positions off.

In retrospect, the bottom was very easy, the sides a little more work.  I would suggest that any builder at the very least, pre-coat the outside side of the sides for simplicities sake.  Pouring the epoxy onto the sides and spreading it around was a little more of a challenge on the vertical surface, but due diligence paid off for a pretty neat job.

Back to that selvage edge.  After the epoxy had cured a bit on the glass, I decided to grab my utility knife and see if I could cut it off!  I could, and it worked awesome.  Pulling it out first before glassing would have been preferred, but this was the next best thing.  Holding the blade close to the edge I was able to get a nice clean cut down the the length of the hull, and then all I had to do was pull it up.


Presto!  As you may notice you can still see the weave in the FT.  This weave took a lot more work to fill in than the glass on the blades.  On the suggestion of my compatriot in Sacramento, I threw on two coats of slightly thickened epoxy and it filled it in much better than the straight undiluted stuff.

Heres a before and after:



A long day, but worth it.  A float test is quickly looming in my future!


 

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Small Boat Plans And Kits | Rudder and daggerboard ready to be shaped mast lumber!

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Small Boat Plans And Kits


Today was a surprisingly uneventful day in the my personal Goat Island Skiff world.  Ive been stumbling around lately trying to get traction on a number of projects, some held up by other projects that needed to be completed.  Two large steps forward happened today.

First:  I wandered into Goose Bay Lumber haphazardly and found 4 pieces of 20 x1x4 finished Douglas Fir boards.  All of them were straight, maybe three knots in the bunch, and relatively nice straight grain to boot.  Just four, all four were good, I grabbed them.  These will be my mast that powers my vessel.  I had them cut to 15 8", since the mast is just a smidge over 15 6" tall, this gives me an inch of "oof" space.  Also, they had a 15" planer, I had my daggerboard, and we fed it into the mouth of the machine.  It spit it out a little thinner, and nice and smooth on one side.  The planer was not a precision machine, and while I can lose 0.75mm, Id rather do that by hand than take out a huge chunk or something.  But it helped.

Second:  I called my bro-in-law and he was home, with his 13" planer.  I strapped my mast bits onto the roof of my sedan in a fashion that screamed "I will impale the person in front of me if you rear-end me" and roared up the interstate to the second planer.  In short order I planed my rudder down to the requisite 22mm and it came out amazing.  Then, away I planed my mast stock down to the 1/2" it needs to be.  Back on the roof with a little less mass and a little more wobbliness and back to my garage where I trimmed the trailing edge of my blades and got them ready for shaping.

 

Heres my mast stock. Hmmmm Hmmm delicious stock.

 

So I need to shape the rudder, to make the rudder box, so I can install the rudder hardware to the boat, so I can finally glue down the rear seat.  Then, daggerboard so I can glue down the centercase.  Then, make the mast, make some spars, and then I can start finishing my boat.  One day, one step, at a time.

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Wood Boat Plans And Kits | C C Redline 41 Review

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Wood Boat Plans And Kits




There has been no shortage of fanfare surrounding the launch of the new C&C Redline 41, and with good reason. This all-new design traces its commercial pedigree back to  the fabulous line of racing/cruising yachts designed by the legendary team of George Cuthbertson and George Cassian, The history of C&C Yachts is convoluted so I wont go into the details here, but you can read all about it on the Internet. Back then I was still a kid and a huge fan of C&C boats and thought they were all designed by the two Georges, but in fact much of the credit for the excellent design work belongs to Rob Ball and Rob Mazza as well as other talented designers that spent more or less time at C&C.

That was back in the heyday of yacht building in North America. By the mid 1990s the company had fallen on hard times and was taken over by Tartan Yachts, which produced a series of boats under the C&C name that were designed by Tim Jackett. Those were, in my opinion, okay boats but not quite in the same league as those designed by Ball, Mazza and the rest of early C&C design team.  In 2013 the C&C assets were acquired by US Watercraft, which is based in Warren, Rhode Island.

Finally, C&C, which suffered the same stormy weather as all the other sailboat builders in America over the last fifteen years, has found a favorable wind. It will be a surprise to me if C&C does not return to something akin to its former success. In addition to C&C, USW owns and manufactures the Alerion, True North and Carolina Cockpit brands as well as Waterline Systems. They are also a licensed builder of several J/Boat and Farr models. They have enlisted the venerable Barry Carroll to manage the C&C brand and Mark Mills to do the design work. Its hard to imagine a more capable gang to carry on the C&C name.

The Redline 41is intended as a racer/cruiser with the emphasis on IRC racer.  Here are some numbers:

LOA:  40.7
LWL:  35.4
BMAX: 12.13
Draft:  8.2
DISP:  15,100 LB
BAL:  7,232 LB
Calculated Sail Area: 891 SF
D/L:  152
SA/D:  23.3
BAL/DISP:  48%

Wire frame drawing shows a moderate displacement hull with firm bilges, narrow waterline beam, long overhang aft and no chines. 
I visited the C&C web site (www.c-cyachts.com) and found all of the photos for this article, including the beautiful wire frame drawing that gives us a pretty good understanding of the overall proportions of the boat. So beginning with the hull, we see a very clean shape with a narrow waterline beam and minimal wetted surface. Notice the slightly raked stem and the longish stern overhang. I like the raked stem for aesthetic reasons, and the long overhang aft provides reserve buoyancy when the boat is pressed, leaving a clean wake.  Notice the distribution of beam, its been pulled in a bit at the transom and there is plenty of flare in the hull in that area. Up forward, the bow is fine, with just a bit of hollow in the waterlines, and the knuckle is placed just above the waterline . This is going to be a slippery and well behaved yacht on all points of sail.

Driving upwind. notice the clean release of the wake off the transom. 


The keel consists of a cast iron vertical fin mated to a lead bulb. The bulb is an inverted "U" shape in cross section. This helps get the center of gravity (CG) as low as possible but does generate more turbulence than a more symmetrical torpedo shape. Im sure the Mills team analyzed this trade-off and decided that the benefit of the lower CG outweighs the cost of the higher turbulence.  The rudder is a deep, thin blade that should provide good control. With a displacement/length ratio of 152, the 41 isnt going to be a downwind planing machine but should surf along quite nicely on races such as the Transpac.

The IRC rule encourages moderate displacement and high-ish freeboard. This 41 is not equipped with an anchor locker or bow roller, but it sure is pretty.



Notice the inboard and outboard tracks and barber hauler.  


The cabin trunk is low and aerodynamically sculpted. It is relatively narrow amidships, leaving wide side decks and plenty of room to locate the jib tracks well inboard. Racers need tight sheeting angles. Notice that the forward end of the trunk is fairly wide, leaving very little side deck in this area. This was likely done to provide headroom in the head and forward cabin. The cockpit design is a nearly perfect for a racer/cruiser. The seats forward allow for headroom in the quarterberths and offer some comfort for the crew. The mainsheet traveler is located on the cockpit sole, with the sheet led to a pair of winches at the aft end of the seats, Admirals cup style. The photos show a recess in the open transom and I noticed in one of the renderings on the web site that they were at least thinking about a fold-down panel there that would serve as a swim/boarding platform. I dont think its necessary for cruising since the recess provides enough of a step that boarding from a dinghy wouldnt be a problem.


Sensible deck layout and reasonable accommodations for a racer/cruiser



The rig is pure raceboat. The mast and boom are carbon and so is the retractable bow pole. The chainplates are out at the rails so jibs are limited to about 105%. The boat has inboard and outboard jib tracks and barber haulers. This will allow the trimmer to dial the jib in perfectly. There is apparently an option for a short permanent bowsprit in lieu of the retractable pole. That would be a nice place to mount the anchor and roller, but since there is no provision for an anchor locker or windlass theres no point in trading the pole for the sprit.

The V-berth is snug and lightweight.


Going below, the accommodations are exactly what I would expect from the builders of the Alerion, a tasteful blend of white surfaces and wood accents. You might wonder what all that wood is doing in a boat like this. It certainly harks back to the days of true racer cruisers that C&C once built. The layout is functional for racing and offers just enough comfort for coastal cruising. The V-berth looks small, a perfect place for the kids. The head is minimal for a racer/cruiser and is located forward of the main bulkhead with access from the forward cabin. This isnt a perfect arrangement but is acceptable, in my opinion, because the Redline 41 is a racing yacht with cruising amenities rather than a cruising yacht racing capabilities.

Basic but comfortable accommodations.


The galley is bright and spacious for a racing yacht.

Its nice to see a well designed nav station on the Redline 41

The Redline 41 is going to be a fast and fun boat to sail. As for cruising, its easy to envision spending a week at the island, on a mooring. People passing by will inevitably slow down and admire it, ask what she is and comment on what a beautiful boat she is. Its harder to envision this boat spending a month cruising in more remote areas where good ground tackle, sun protection and shallower draft are important. Its a racing yacht that can be cruised. As I mentioned earlier, I will be surprised if this boat isnt a huge success and a worthy successor to the legendary boats that C&C produced in its heyday.









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Small Boat Plans And Kits | Getting Ready to Head South

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Small Boat Plans And Kits




Finisterra has been in her slip for the last four months undergoing some refits, improvements and upgrades in preparation for her next adventure. Here is a partial list of work done:
- 10 coats of varnish on the cap rails
- Replace the worn teak in the cockpit with synthetic teak
- Add a fourth element to the lazyjacks
- Rebuild the watermaker
- Replace the jib sheets and main halyard
- Service the ground tackle
- Install fans in all the cabins
- Modify the outboard motor hoist to make it smaller and lighter
- Install a cut-out switch between the solar panels and charge controller
- Upgrade the bimini
- Fabricate and install a new cockpit table
- Replace the XM radio antenna
- Replace all docklines
- Install spreader patches on the mainsail
- Service the diesel engine and outboard motor
- Seal the joint between the galley countertop and lockers
- Completely empty the boat and clean out all lockers
- Refresh ditch bag
- Get new bug screens for all hatches

Whew! That was a lot of work. Now all thats left is to provision, fuel up and take care of roughly a thousand other minor tasks, such as refill the propane tanks, re-certify all the safety gear, go through our wardrobes and thin them down for the tropics, install an Iridium Go satellite communications system, stock up on spare parts and tools, make copies of documentation, etc. etc.  A few of my landlocked friends tell me Im "Livin the dream", but what they dont understand is that living the dream is a lot of work!

Anyway, it looks like, barring any surprises, Finisterra will be ready to sail sometime in early November. The plan is to spend a few days at Catalina Island, another week or so in San Diego and then head for Ensenada. From there well sail down the coast of Baja California, stopping in Turtle Bay and possibly Magdalena Bay before rounding Cabo San Lucas and laying over a day or two in San Jose Del Cabo to top up provisions. From San Jose, the plan is to cross the Sea of Cortez to Mazatlan, then cruise down the coast to Puerto Vallarta where well spend a month or so and plan our next move.





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