Showing posts with label 3. Show all posts
Showing posts with label 3. Show all posts

Tuesday, June 7, 2016

Bulkhead 3

Things have been progressing more slowly than I want, but this is due to several extenuating life factors. First, my work takes me on the road for days at a time, and then Im home for a few days where I need to cram in my errands, my personal life, exercise, sleep, etc. To boot, the weather has been fantastic, and I cant justify being in the basement. SOOooooo, during my last time home, I was only able to frame BH3, which is very straight forward because there are no curves. Im back on the road again, and will be for a while.

Once the winter rolls around with its bad weather, this boat is ON.

Sunday, May 29, 2016

Gluing BH2 3

This morning I glued up BH2 and BH3, this time precoating the pieces with straight up epoxy and then mixing a thicker glue with the silica which makes me cough like the dickens, hopefully that stuff isnt setting up in my lungs. Things definitely went a little smoother this morning. One person over at the Storer forum suggested drilling small holes and dropping in some nails in the holes to hold the pieces laterally. I did exactly that this morning, and it works quite well, I am pleased with the result. Unfortunately, haste makes waste and I put one piece on upside down, so I turned it around and applied more glue after ripping it up, and a put another piece down 180 deg. of what I wanted, but it works in that position anyway but not as aesthetically pleasing, so I left it in place. The side arms on BH3 also extend all the way up beyond the ply, and I precoated the whole arm even though that was unnecessary. Oops. One more BH to go, and then I can tackle that transom.

Tuesday, May 24, 2016

Beveling bulkheads

I also recently started beveling my BHs and transom since they are all glued up. Despite my initial fear of beveling, it is quite easy, even for a beginner. I mark the edges of the BH first and draw a line for the bevel, and then on the face that is to be beveled I draw a line connecting the two edge bevels. That way, I have a nice visual of what needs to be planed off. Heres an example:

Heres a side of BH1 all beveled up:


BH 1 and the Transom are easy to bevel because all the frame pieces are on the same side. I am running into problems on BH 2 and 4 because I need to make bevels but cant get my plane to the end of the BH because a frame on the opposing side blocks it. This is frustrating. I glued everything up as I was supposed to, minus the side frames that are added after the boat is glued together (this is me saying to the skeptic: I read the directions and followed them to the T). In retrospect, I feel like I needed to piecemeal construction of the BH and bevel a piece at a time. Heres an example of the problem on BH4:


Above is BH 4, looking along the bottom edge that is to be beveled. The bevel drops from left to right, so the high side is on the left. The side frame in the distance will block the plane from finishing the last section, unless I can get a bevel on the side frame. Then plane should pass over it no problemo. Heres another example but on a side frame now:


So this is looking down the side of this particular BH. I have marked the bevel I need on the side (2mm) with the continuation on that bottom frame. From this perspective imagine the plane is coming down the side of the BH towards you, the viewer. As you can see, it will be blocked by the side frame unless I can bevel that too. I dont know how to easily bevel this so I can bevel the rest.

UPDATE: Someone over at the Storer forum mentioned a few options, of one them being a rasp. I took care of this problem in 5 minutes... my brains just not working today. Theres a reason Im not at work!

Saturday, May 14, 2016

TWO HEARTED and IAZ P

This is going to be a brief post, but it is very important that I prequel the upcoming week with exciting new developments here at Amateur Style!

Goat Island Skiff I Am Zinea, Pterodactylus now has a fellow partner in somewhat-high-seas shenanigans!  I present Capn Jons meticulous and spectacular Two Hearted, a Ross Lillistone Pheonix III.

HUZZAH!


HUZZAH!

Two Legends and Capn Jon-- cool guy who doesnt look at explosions
HUZZAH I say!




Friday, May 6, 2016

Side bar scales Fun Factor and Money Spent are totalled and explained

So on the left of the blog I have the "Fun Factor" and the "Money Spent" list.

I have totaled them up today in a completely unscientific fashion that will mystify some if they attempt to replicate my results, annoy others, or make others feel really really good about themselves.

First up, the Fun Factor.

Out of a possible of 240 points, building the Goat Island Skiff got 175 points, leaving it in the exclamation point (!) zone, but not as high as I would have liked to see it.  Overall the entire process was immensely satisfying, as it was emotional and frustrating.  On the whole since it averaged out in the 7! zone, it was fun.  But not FUN!  Thats OK.  Stuff doesnt have to be fun all the time to be rewarding, and the fun Im going to get out of this boat over the next few years will far overshadow any kind of frustration from the past year.  The learning curve aspect is also not included in the Fun Factor, and this is a shame, because I went into this project knowing absolutely nothing at all about boat building, and came out actually a lot more knowledgeable than I thought I would have.  This is a good thing.  Learning is good.  Look at some of my previous posts like this one to see how far Ive really come.  I mean, wow.  So in summary, the boat was fun to build, but it was fun like going to college was fun, the sex and the beer but also the exams and the papers and the thesis, but then feeling good afterwards!  So fun.

Second up, Money Spent.

Ok, this list is fraught with conservatism that does not reflect my situation in the least.  It was my honest attempt to track every penny I spent on this boat, but that went out the window fairly quickly.  I have compiled, therefor, a list of the materials as I mostly originally spent on them.  For instance, I got three deckplates for relatively cheap.  Well, they were cheap.  So they got upgraded to more expensive deckplates.  This upgrade is not reflected in the list.  There are other products like this also in place.

Im sorry about that, but the list in "Money Spent" is probably, by far, the LOWEST you could possibly spend, buying crappy deckplates and such.  Ive already upgraded much of the line in the boat, bought useless line, bought tons of hardware that mysteriously didnt get used, amongst other issues.  Therefor, a more realistic target for me, is the $3500+ number.

I will say:  The glue is accurate, the lumber is accurate, the paint, primer, varnish are accurate, as well as the sail (minus modifications).

So there you have it for comparison purposes on your own Goat Island Skiff project. 

Monday, May 2, 2016

Epoxy coating the interior and more turtles

Today I took advantage of some free time and some of the most glorious weather you can imagine in beautiful New England this time of year!

Drum roll please.......

I epoxy coated the interior of my Goat Island Skiff! Yeah!

This is big for two reasons:  One, I wasnt looking forward to it, Two, my back has been in such a state that I havent physically been able to do it.  Being able to reach down in there and coat up the inside was a real good feeling, lemme tell you!  I was stoked.  Again, physical therapy = awesome.

So, coating the interior is much like the exterior.  It came out very neat, too.  I am pleased with the result.  Heres a romantic picture of her in the sunset, just her and me:

 

 She looks good.  So far, Ive done two coats of epoxy.  Im supposed to do three, which I did on the exterior, but I feel like two is good enough especially since its not going to be saturated in water.  Not to mention its going to be covered in two coats of primer and two coats of paint.  I should be ok.  Maybe I will do three layers on the bottom and chinelogs...

That all being said, I want to point out again how she can ride on her side when turning her over:



This is HUGE.  To those who have extensive dinghy experience, you all know exactly what Im talking about:  Turn the boat over, get it on a side, attempt to balance it on the gunwale, fail, catch the boat, wrestle around one of the ends in an attempt to get to the other side, fail, watch boat fall to ground in a random direction, wince at possible damage, etc etc etc.  It sucks.  This baby, she rests on her side.  You can walk away.  Drink a beer.  Pick your nose.  Go on vacation.  She will sit, on her side, patiently.  Awesome.

Finally, I caught a Painted Turtle today.  This is a quite common turtle on the North American continent, and not as big or as long lived as the Blandings Turtle that I found a few days ago.  Whats neat about this one is that Ive been trying to catch one for a year.  Now, that doesnt mean Im out everyday like its my job, but many attempts and sneaky approaches have been tried, to no avail.  Catching this guy, while swimming, is a minor coup for you know who.  Me.  Quite beautiful.  Hissed at me when I picked it out of the water.  I put it back where I found it, and I hope it forgives me.

A little grumpy.  

Thursday, April 28, 2016

Moving along

A bunch of small items were taken care of today despite my continued head cold and heavy congestion. Sneezing and coughing and snotting all over my boat was a great experience, really.

Anway, All the BHs are beveled, I notched the top frame on BH3 where the middle 90mm was supposed to have never been applied (room for centerboard case), and I cut and traced out the timber for the stem. I also cut the holes into the BH 2 and 3:


Theyre still rough, I havent sanded them smooth or even yet. You may notice I went for the trapezoidal shape on BH2, this was at first done because I was a little nervous doing circles with the jigsaw a la transom. After I did it, I thought, damn, that looks bad. But then I realized that without the curves I can stuff more equipment (picnic basket, wine, beer) in that forward space between BH1 and 2. So I liked that, but then I waffled back to cutting a bigger hole to get curves. At this point my wonderful wife wandered in as I sat perplexed, and she gushed at how imaginative I was for mixing and matching shapes for the holes and how great it looked.

The trapezoid stays, gentlemen.

Up next:

  • Shape and finish the dreaded stem
  • Cut timber and scarf chinelogs
  • Apply re-enforcement on transom for rudder
  • Cut notches on BHs for chinelogs
  • Coat all BHs with epoxy (I may do this later because Im getting impatient to see the boat)
  • Glue up the sides
  • Touch up with the plane
  • Screw it all together for a dry fit in the garage
  • Freak out as I try to find a warmer place than the garage to put it for the winter so I can work on it.

Wednesday, April 27, 2016

Americas Cup Day Four Removal of Doubt

It was no surprise that Kostecki got the hook. Team Oracle has nothing if not a lot of depth on their bench and Ben Ainslie is certainly a qualified tactician. But it was also no surprise that they achieved the same result with the new guy. Oracle is sailing scared. If they get ahead of TNZ they are nervous that theyll get passed. If they get  behind, they have no confidence that they can pass. This sets them up for mistakes, and they have certainly committed more than enough to send the Cup back to NZ.

In race 6, Oracle won the start and the first run. But then they were so concerned about getting rolled that they failed to stick to a winning strategy. They went around the wrong mark at the leeward gate and that pretty much sealed their fate. Out of phase with the tide and their competition, they struggled to get back over to the right side of the track only to have TNZ pummel them all the way to the weather mark. By then it was over.

It was only a matter of time before TNZ would win a start. In race 7 they did that and simply never looked back. I dont know exactly how many practice days team Oracle has had, with or without Ainslie, but its pretty clear that they have not had the same amount as the Kiwis. It looks to me like the Oracle crew is still on the steep part of the learning curve while TNZ is certainly well beyond that stage. Perhaps Oracles crash last October took too much of a toll in terms of sailing days for the crew. Perhaps there is too much internecine friction within the command structure at team Oracle. Whatever it is, this team is not living up to its potential. The betting now is whether Team Oracle can win even one more race before the Cup is shipped to Auckland.

Friday, April 22, 2016

Americas Cup Day 3 Disaster for Oracle

It was a beautiful day on the Bay, with plenty of wind and lots of current at the start of the days racing. These were perfect conditions for the local boys to show the Kiwis about racing on San Francisco Bay. It was TNZs turn to enter the starting box first and they should have had the advantage, but Oracle was able to maneuver into reasonably good position just to weather of TNZ when the starting flag dropped. They accelerated faster than TNZ which was not able to establish an overlap at the first mark. Oracle looked good on that short reach, showing better straight line boatspeed and rounded clear ahead of TNZ. They maintained their lead all the way to the leeward mark. They came in on starboard tack with a comfortable lead and should have simply rounded the mark and hardened up onto a starboard beat and left it to TNZ to tack, and then keep a loose cover on them. Instead, someone in the back of the boat decided to round the mark and tack immediately. Disaster!

Anyone who has ever sailed a catamaran knows they are slow to tack. When you round a leeward mark you want to at least get back up to speed before you throw the helm over. Somehow, the brain trust aboard Oracle forgot this basic rule. So they rounded the mark and tacked all in the same maneuver, and in that moment they gave up their lead, Their thinking was that it was better to stay on the right hand side of the course to avoid the adverse current of the flood tide. Bad thinking. The first rule of yacht racing is to stay between your competition and the next mark. In a colossal brain-fade, the afterguard aboard Oracle ignored this rule and suffered the consequences. TNZ rounded the mark, hardened up on starboard tack and made short work of Oracles lead. At the first cross they were on port tack and ducked. On the next cross they were well ahead. After that there was no doubt as to who would win this race.

Ive sailed many thousands of miles as tactician and made more dumb moves than I can count, so I know how the crew of Oracle feels. In match racing it can be one bad move and your day is over, and if you still have several legs to race, that feeling of self inflicted wounds only grows. Oracle served this race up to the Kiwis on a silver platter and they knew it at the first cross, if not before. I can imagine the crew muttering under their breath as the were grinding in the sheets on that tack. Im sure the Kiwis were only too glad to snatch this race from the faltering grasp of the Yanks. It was so bad that Team Oracle decided to use their "postponement card" and skip race two today. Watching the body language on that boat, it was clear that this crew was demolished today, and it was probably a good decision for them to bail. Another pounding like that would have been devastating.

So the question is whether Team Oracle has it in them to come out on Thursday and make a race of it. I think this goes to the psychology of the game of yacht racing. Their boat is fast enough. Ive heard talk that its more complicated to sail than the Kiwi boat. Actually, all boats are more complicated to sail until the crew has practiced enough to make all the maneuvers look easy. If Oracle had another six months to sail the boat, all the maneuvers would go flawlessly. However, its possible that a demoralized crew can start thinking they are riding the slower horse and that can become a self fulfilling prophecy. If they dont fix that now, the crew will begin to expect the other guy to beat them. So the gang at Team Oracle needs to do three things if they want salvage this regatta:
1. Stop going the wrong way.
2. Keep the psychology of the crew from surrendering to defeat.
3. Make sure their strategy is one that can win, and make better tactical decisions.

Once again, I have to say that I am surprised at how tactics rather than simply nailing the start have been the deciding factor thus far in the regatta.


Sailing time 3

Ok, back to some sailing today with my Goat Island Skiff!  I had to take a hiatus the past few days to take care of some issues, but this afternoon I picked up my sail from Withum Sailmakers, who added some grommets along the original reef points, and a third reef, which will be the new first reef, half-way from the foot to the original first reef.  See picture.


This set up came highly recommended by the sailmaker, and my buddies over at the Storer Forum thread where we are discussing the Goats handling characteristics.  This will give me more options for reefing whether I am solo, or with a crewmember.

In addition, Ive adjusted my downhaul.  Previously, I had a downhaul that also went to the forward section of the boom and this was affecting my ability to dump power when a gust hit, and this contributed to me dumping the boat in Force 3 when I was solo.  It was a frustrating day, and in so small way my downhaul had a part to play.  This is what the downhaul looks like now.  Its still not what I want, because I lack the hardware, but its better than what it was, and it the difference was noticeable. 


Now there are some problems in this picture.  I need some more tension at the tack, and you can see the first grommet of the foot is pulled tight against the plastic zip-tie.  Either I need to tie down the entire foot, or re-enforce this area.  This force was created by the extra down force on the downhaul.  This extra force on the downhaul keeps the rig from swinging forward.  Though, as you can see in this pic of my going downwind, the downhaul is not parallel with the mast, because there is still not enough force, and by the end of the sail, the boom had inched forward.  More purchasing power on the downhaul will fix this.

OH! And here she is at anchor.  Pretty!

Monday, April 18, 2016

Little Chebeague and Fort Gorges

AHOY

Last week I was in need of escape to spend some time on the water.  With just a two days off I quickly loaded the boat and got myself back to the clear waters of Casco Bay for a short and dirty one-night jaunt.  First time the Goat Island Skiff has been in Casco Bay since 2010!  Initially I had planned on going out to my favorite little island, Bangs, scene of many an adventure in IAZ,P, but when I landed on the clear sandy beach of Little Chebeague I was hard pressed to find a reason to continue onwards.

Not only did the nice beach attract me to Little Chebeague, but I saw this little piece of awesome anchored.  Note clear water.

Sweet lines


This is an Atkins XLNC, white cedar on white oak frames.  Please check out the Atkin & Co. page for XLNC here.  You will notice that in the pictures, this boat if featured.  XLNC was also featured in the 2012 Small Boats by Wooden Boat Magazine.  She is powered by a Palmer Model #27 complete with required Pabst Blue Ribbon beer can on the exhaust manifold to prevent water from dripping into the carburator.  This is called Yankee ingenuity and if you are rolling your eyes you are not from New England.



The boat is currently under the care of Bill and Jennifer who were enjoying a week cruising the Maine coast from their summer retreat.  With a setting sun and a falling tide Bill and Jennifer shoved off for home.  For all of 100 yards the boat made cute chugging noises as its bow seamlessly split the water, and then some engine fiddling was required.  Engine fiddling is a very important part of maritime experiences.  If you are not fiddling with the engine, something is wrong.

"This beer can is a fine solution"
After Bill and Jennifer left I set up camp as the tide continued to drop, stranding IAZ,P for the night.  I was alone on the island, on a beach, watching the sun set and the ferries go by.


Im pretty sure this is the same ferry that almost ran me down during VisionQuest/ManQuest2010 at this very spot!
My evening was spent in quiet reflection as I enjoyed lheure bleue  some rice, carrots, and hummus, and a swig or two of rum.  There was no wind, just the gentle lapping of water on the beach and the kaleidoscope of stars and Milky Way spinning slowly overhead.

As I was snugged down in my sleeping bag an ugly plastic motorboat showed up  and disgorged several 20-something guys.  Their self-importance was reflected in their constant braying, bottle rockets, frenetic music selections, and general indulgence in noise which totally shattered any optimistic feelings I was having about the world and humanity.  We truly are a pathetic and primitive creature, afraid of the dark and the silence that accompanies it, always insistent to fill the few sacred times with the profanity of our repugnant self-worship.

The next morning I was awakened by a hot needle boring into my nose into my brain.  I swatted at my nose to find a red ant at the tip of it.  Wake-up calls from red ants biting my nose does not figure high on my pleasure list.  I couldnt stop the tears streaming from my left eye.  I was awake, before the dawn, but her rosy red fingers were already streaming over the coast of Maine.


I had a little bit of a breeze from the northwest.  Since it was supposed to shift to the south later in the day, I supposed a period of calm would fall between the two.  A high pressure dominated.  Even though the ebb had begun and I would be fighting all of western Casco Bay to get back to South Portland I decided to shove off and use the wind while I had it.

It turned into a frustrating sail with the current against me, I made barely sufficient headway.  Time to strategize.

Little Chebeague is (A).  Fort Gorges is (D).  Bug Light Park is southwest of the fort, and that is where my vehicle and trailer are.

Purple = wind
Red = nasty currents
Blue = heroic path of jaunty skiff (approx)

Leaving Little Chebeague I usually go west of Diamond Island (marked McKinley Estates) into the broads of Casco Bay.  However, the ebb was on, and the flow was pushing out to the Atlantic (east-southeast of the island group-- to the right on this map). This made getting around Diamond difficult, since the current is rather forceful around the northern tip.  With the wind from the west, I made a gamble, and decided to allow myself to get pulled into Hussey Sound (B).  My hunch was that I would get pushed towards Peaks Island.  The channel on the northwest side of Peaks would also have a strong flow against me, but I hypothesized the westerly wind would be compressed between the islands, like a venturi.  This would give me the thrust needed to overcome the current and get halfway down Peaks Island to (C), where the flow would be reversed in the other direction.

I sped through Hussey Sound (B) worked my way towards the gap between Diamond and Peaks and sure enough, the wind velocity was much higher!  I had a spirited sail through the gap, keeping to the southeast side where the current was least and the wind highest.  I made it to (C) and the current reversed and the wind died, but now at least I was being pushed to my destination.  I was elated!  My strategy worked.  On the backside of Peaks I broke out the oars to row towards Portland harbor and the breeze that awaited me there.

Mastermind
About this point a very nice couple in a powerboat swung by and asked if I was OK.  I affirmed I was. They asked if I wanted a tow.  I politely declined.  They asked again, as if I was a bit muddled-- I was rowing and I didnt have an engine after all-- and I declined once more.  They sped off and I rowed on.

I made landfall at Fort Gorges on the beach.


Fort Gorges is a pretty sweet place.  First, its a bad-ass fort.  Second, its publicly owned which means we, as citizens, can enjoy nice things together for enjoyable picnics and family outings.  Third, its a thumb in the eye our litigious society.  Its a fort.  There are dark places.  There are high places.  There is water!  In short, I love Fort Gorges.



Entry way.  Two massive doors.  Arrow slit windows to gun down the invaders.
Walking into the fort.
Entry way is on the left.  Powder Magazines are straight ahead, the giant wall in the shade

 I explored the officer quarters, which had nice plaster and blue paint on the walls, and then walked up to the third sod-covered roof level where bigger guns were to be placed.  This is a place to wear shoes FYI, there are lots of rusty bolts from the gun placements.  The dark areas and powder magazines are pitch black nighttime dark, so bring a flashlight if you want to go in them.  And bring a friend.  Spooky abounds.  This fort is massive by the way.  Everything about it screams indestructible.

I went up to the third floor to find the 300 pounder rifled Parrott gun that was hoisted aloft but never mounted.  Interestingly, it is on the northwest corner of the fort, with a great view towards the city of Portland as opposed to a southwest corner which would offer a better view out to sea...


Note rifling and beer cans.  This is one of those pictures that you take with a hand that is quickly removed from dark tube lest the beasties eat your fingers off.

Some scale.  I am a size 13 foot.  Note "U S" stamped on metal.  This is genuine US Military Grade weapons technology for the taking!
I spent some time wallowing in the sun and the nice water on Fort Gorges, and then I made a short leisurely sail back to my trailer.

On the way back, I got passed by the legendary "Free Candy go-for-it-this-guy-seems-legit Van" which we Capn Jon and I saw back during the Portland Boatbuilder Show this spring.  It was moored off Long Island that morning.

Fenders down and everything.
Until next time Intrepid Readers!  (exciting episode in the works for next week!)

 I love summer.


Sunday, April 17, 2016

Mast in boat re epoxy ing and neat turtles

So, Ive been pre-occupied recently with other events, namely, my impending return to work after some serious back-rehab (phys. therapists = good), some life events, and so on and so forth.  So, this is good.  Im broke, my back is better (which means I can actually do some work in the hull as opposed to just staring at the bottom of the boat), and springtime is coming.

One harbinger of spring is the emergence of turtles through their long torpor and into the light once again.  Today I ran into this chap, a Blandings Turtle which is actually considered endangered in New Hampshire.  They dont mate until their late teens, and they can live to around 80.  Anyway, I moved this guy for a photo-op only to later find out theyre endangered in NH, so I feel like an ass, but I treated him gently and placed him back right back where I found him.  Actually, this could be a her, I should find out.  Handsome, regardless:

 

I will report this to the Dept. of Fish and Game, they keep track of this stuff.  I also reported a Bobcat that came trundling through my yard two days ago.  That, was neat, but it was too quick and I have no photo.  Sorry.
ON TO THE YACHT!

With the mast all built, I tapered the base per the plans.  If you remember, I made the mast slightly larger than the plans called for, not much, just 1mm here and there, but it affected the fit in the mast partner and step, and those had to be enlarged.  This was not a big deal, its only a little bit and if you may recall, intrepid reader, I made the stock of the partner and step bigger than called for.  So I feel safe doing this.  Here is my great friend Matt, recently returned from Overseas Adventures Extra-Ordinaire doing his duty, and helping me out at the annoying task of rasping the mast partner larger.  Welcome home:


He did a most fantastic job.  Then I ruined it.

After some rasping and Dremel-ing the heck out of the mast step, we got the mast stepped:



I offer you many vantage points.  The overhead is kind of neat.
The mast is currently being fiberglass-taped right now, two tapes at the base, two at the top, and two amidships, one covering the single knot in the lumber.

Also being worked on is the hull.  I sanded the epoxy coating I gave it the other day, and added a third coat.  This was a technique I stumbled upon doing my BHs.  If I sanded and then added a last coat, it came out super smooth.  Im hoping for the same with the hull, especially since the Im trying to get the fiberglass tape down smooth.  After aggressive sanding, Im thinking the extra coat will fill up to the gap.  Here she is, sanded:




So next up, I have to figure out the rudder hardware problem.  This is worthy of another post.  I cannot, for the life of me, get my rudder hardware figured out, and its beginning to piss me off.  By hardware I mean what attaches the rudder stock to the transom.  Some gudgeons are too small, others are too big, Im going nuts.  Also, I have to figure out what to do with my daggerboard trunk.  It needs to be, literally 1mm wider, and I dont know how to do that.  A lot of glue, maybe? when I glue it together?  These are two items that are holding me up.  Also, I have to epxoy coat the inside of the boat, with nice weather finally on its way, there shouldnt be a hold-up.  I really want the hull ready for paint when and if I get some time off from work to come back home.  If Im home for 24 hours, I want to be able to get mucho stuff done.  So that is what Im staging for right now.

Saturday, April 16, 2016

Installing a Chain Stopper



A while back I installed a Lewmar chain stopper on the foredeck to make anchoring a bit easier. It was a simple job to fashion a mounting block out of teak, make a backing plate out of apitong and bolt it all together. The job was done in a day. Then I went out and anchored and discovered that if I left it as is, the stopper would soon knock all the galvanizing off the chain. This is a standard flapper type chain stopper, rated at 5,000 lb SWL and sized for 5/16 chain. I had used this unit on my last boat, which had 1/4" chain and a vertical capstan windlass, and it worked well. The problem is that there is barely enough clearance in the stopper for the chain to pass through, and only if it is perfectly aligned and set at an angle that matches the angle of the chain as it passes from the windlass to the roller. On top of that, the deck in that area is only about half an inch thick. It is made of a fairly heavy fiberglass laminate and a bit of wood core.  This isnt really enough structure to simply throughbolt the stopper to, so I added a carbon fiber top plate and a larger wood backing plate to bring it up to snuff. The photos below outline the process.


Mold. 

First I measured the amount of crown in the deck forward of the anchor locker. Its nearly flat but I wanted the edges of the top plate to fit tightly to the deck so I created a bit of extra curvature in the mold, which is made of a piece of old 1/4" Starboard.

Paper pattern with pre-cut carbon fiber

I took a template off the deck and drew the shape in AutoCad. I wanted the top plate to be fairly large so I could attach it to the deck with several widely spaced fasteners to spread the loads out as much as possible. The rectangular shape is the outline of the teak mounting block.

Laminating the carbon fiber
I used four layers of Vectorply C-LT2200 carbon fiber cloth for the laminate. This fabric is made of carbon fiber bundles aligned along the 0 degree and 90 degree axes of the roll and stitched together. This architecture is stronger than traditional woven fabric. The four layers amounted to about 88 ounces/sq yd of material for a total thickness of about 3/16" when it was finished.

Second layer is rotated 45 degrees 

I oriented the first and fourth layers so the fibers run at 0 and 90 degrees to the centerline of the boat and rotated the second and third 45 degrees to provide strength in all directions. I used WEST systems resin which works really well for hand laminating projects.

Finishing the top plate

After the plate was laminated and cured, I glued another copy of the paper pattern to it so I could precisely locate all the holes. It was a simple matter to drill and countersink them exactly where they need to be.

Top plate ready for finish sanding and paint




Check fitting the hardware

Finished part installed

I made a backing plate out of 1" thick apitong that extends out to the bulwarks to help spread the loads as much as possible. The 10" cleat allows for a snubber to be run out over the port bow roller. I found that if I take a turn around the roller with the snubber, it wont jump off if it when the boat swings at anchor.

Chain and snubber geometry works
It took a couple of tries to get the alignment and angle of the stopper to match up perfectly with the chain. It would have been nice to have a larger stopper, but there was just enough clearance between the shank of the anchor and the hatch for this smaller unit.

55 LB Rocna just fits




Saturday, April 2, 2016

Hazey Summer Daze continues

Theres a double meaning in the title for the intrepid reader...