Pages

Ads 468x60px

Showing posts with label the. Show all posts
Showing posts with label the. Show all posts

Wednesday, 19 April 2017

An update from Alec Jordan on the Ayles skiff


This came in yesterday and after I had posted on the Ayles skiff the day before, so please now read Alecs updated story. The pictures are from the Skiff World Championships at Ullapool 2013.

Roy

Hi Roy

Thanks for putting this up.

First point – the pic at the top of the two man boat is the Wemyss Skiff.  Attached are a couple of new pics from Skiffy Worlds to replace it.

The text below is now slightly dated – please replace with what is below.


Click on the pictures to view in a larger size.
 
Photo credit, by Steven Gourlay Photography, taken 10th July 2013, at 9.54 am.
 
Ullapool Harbour, Scotland.

Thank you for showing an interest in the St Ayles skiff. Your life may be about to change, hopefully for the better, as you discover the joys of boat building and being on the water as part of a community.
Those of us who were involved in 2009, at the start of what was then the “Scottish Coastal Rowing Project”, under the auspices of the Scottish Fisheries Museum, had a pretty good idea that building and rowing the newly designed St Ayles Skiff would be a very rewarding and sociable experience. We knew friends in our own community and some in neighbouring areas might well catch on and get an enthusiasm for the concept too. However, we have been somewhat taken aback by the speed at which the fever spread, not just around the Firth of Forth, which we might have expected, but initially along the coasts of Scotland, then down into some lovely parts of England, and then around the world.

Therefore, it is worthwhile trying to look at what is so special about this boat, and the way it brings communities together.

Perhaps most importantly, the St Ayles is not something you just buy off the shelf. It is supplied in a kit form, which means that the basic hull shape and dimensions will be the same for each boat. However, a great deal of work goes into transforming sheets of precut plywood parts into the graceful shape of a St Ayles skiff. It’s that work which is enormously rewarding, and can be done by you, in your community, with your friends, some of whom you will know already and some of
whom you have yet to meet, but all of whom you will have a special bond with. You and your community will be very proud of what you create, and it will have touches which make it unique.

Then you and others will start to row your community skiff. Many of the rowers will have lived beside the sea for years, but never looked at their community from seaward before. Just as you discovered the rewards of teamwork when building the boat, rowers will discover the joys of teamwork in making the boat sweep gracefully through the water, and making her ride purposefully over the waves. During the build some experienced woodworkers will have shared their knowledge with learners, a rewarding experience for both. Now on the water the same thing will happen, with experienced rowers and mariners sharing their experience with newcomers. Some of those newcomers will be youngsters, some will be pensioners, but all are discovering that joy of working together with others to achieve a goal.


Photo credit, by Steven Gourlay Photography, taken 10th July 2013,
Loch Broom, Scotland.
Apart from being pleasing on the eye, the St Ayles has proved time and again to be a superb seaboat.  They have been raced in everything up to Force 6  winds, and in three years of regattas, there have been no capsizes or injuries.  Their stability has been a big factor in bringing hundreds of people who have never enjoyed water based recreation into the sport, and while racing is a big part of rowing the St Ayles, there are a very large number of rowers who partake simply for the exercise and camaraderie of working closely together.

Coastal rowing is a very accessible sport. You do not need huge resources or specialist knowledge to become involved. All the rowers have a contribution to make to the propulsion of the boat, and all share the same rewards.
We recently welcomed 800 St Ayles skiff rowers from the USA, Australia, Netherlands, England and Scotland to the first St Ayles World Championships in Ullapool in Scotland’s Northwest Highlands.  The Worlds has attracted further interest from around the world as well as from Scotland; when the next Worlds is held in 3 or 4 years time, there will be many more countries represented – we hope that crews from Southern Africa will have discovered the joys of coastal rowing and will be present for it.

Alec Jordan & Robbie Wightman


Bravo, bravo to this idea, Hout Bay harbour and Hout Bay itself would be the perfect setting for a South African event!

Roy
 
For more information, please go to www.scottishcoastalrowing.org, or download the St Ayles brochure  from http://scottishcoastalrowing.org/files/2013/06/PDF-Final-Full.pdf.

Kits for Southern Africa will be available from CKD Boats cc .

Roy



Read More..

Friday, 14 April 2017

The garboards


Having read JohnB's GLWB, it seemed to me that the planking was going to be a watershed stage in the build.  If I could figure out the spiling technique and master the cutting of the planks, and if they fitted, then I was well on my way to building this boat.

Well the good news is that the spiling techniques which John recommends using a compass, is much easier done than read.  So I was quite pleased with my efforts, although I decided to fair one station mark about 1/8" larger than the mold marks.  I'm hoping that this will be a good decision, but since it is the garboard, only the fish will be my critics...

This is the spiling pattern I made in action.

The spiling pattern is articulated in 3 places, thereby allowing it to fall onto the molds without too much torture.

This is the jig with JohnB recommends for the skill saw...I used an old acrylic display stand, hence the odd glue marks on the sheet - but it came for free and worked perfectly.

 Rather than nailing and screwing the planks temporarily to the keelson and molds, I screws blocks to the side of each mold station and used to clams to dry fit the garboards using clamps.  Seemed to work fine and allowed me to re-position the planks until I was satisfied it was aligned to its marks.

My test attempts at cutting half lap gains....

Half lap gains...

And again, using chisel and Quangsheng block rebate plane

Dory gains for the transom, using a spoke shave.  I've come to really enjoy using the spokeshave.  Initially all it would do was scrape and bounce off the wood, now having persevered with it, I can make really nice shavings, and it is a real pleasure to use.


I have opted to have curved planks at the transom rather than notching the transom, so JohnB recommends to make re-leaving cuts on the underside of the end of the plank.


 Garboards in place.

A short video on the garboards clamped to the molds and keelson before final attachment:


A view from the transom of the fitted garboards.  

Close examination will reveal I am using straight slotted screws.  This was to avoid a further 4 week delay in sourcing Frearson #10 1" screws.  Although JohnB warns of the horrors of using straight slotted heads, in fact they worked out fine and I didn't have any difficulties using an electric screwdriver to send them home.




Read More..

Tuesday, 11 April 2017

To tape or not to tape that is the question A goo vs tape analysis


I was asked to make a service call to replace a field diagnosed problem with a Garmin auto pilot shadow drive. The shadow drive is unique to Garmin's autopilots, and its job is to detect that the helmsman has taken control of the vessel by detecting movement of the helm. When it senses helm movement, it immediately disengages the autopilot, and gives full control to the helmsman to do some task like steering around a lobster trap buoy. After a couple of seconds with no helm movement, the auto pilot will request permission to re-engage, and place the vessel back on course. It is both clever, and easy to use.

The initial problem report was that a hydraulic pipe fitting had been screwed into the end of the shadow drive so tightly, that it had damaged the sensor's wire where it passed out of the brass case, and it sure looked that way when I first saw it. The fittings that screw into each end of the shadow drive are 1/4" NPT standard pipe fittings, and are often used in hydraulic steering systems. Armed with a lot of rags, and some wrenches, I try to unscrew the fittings but criminy, the fittings aren't moving. So back to the truck I go for some bigger wrenches, and with more effort than I would have ever thought I would have needed, they finally unscrewed out.
















I finally free the little beastie, and staring down inside the shadow drive, I find a wad of Teflon tape inside. This is the real culprit. Your boats steering system does not like any foreign materials that will find its way into check valves, ports, steering pump parts or the ilk, and this wad of tape was a problem. After examining all of the evidence at hand, I was able to logically determine that this problem must have been caused by a "Roid Raged" professional weight lifter, with a serious teflon tape fetish issue. I know this because even the Mercury hose fittings, that do not need tape or sealers at all, had tape on them. In a few minutes the new shadow drive was installed, and the system works now perfectly.   
















I have mixed feelings about hydraulic pipe thread sealing systems. They do two jobs, the first of which, and most importantly, is to lubricate the threads, allowing the fittings to screw down further, and the second job is to provide a seal for any spots where fluid can escape. In theory, and it is theory, perfectly machined NPT pipe threads on both parts will not leak, if they are tightly enough screwed together. The reality is that these parts, although closely machined, are often not perfectly machined, and handling, shipping, and other abuses in your hardware store, vendor shelves, and bouncing around in my truck all contribute to nicks, and flaws that can allow fluid at a 1000 psi to sneak through, and so these materials are sealants also. Lets now take a look at some of the options.

Ladies, and gentlemen, in the far corner, weighing in at next to nothing is Teflon Tape. He's pretty, snowy white, the reigning champion, and ready to fight.





















In the other corner, also weighing in at nearly nothing is TFE Goo. He's messy, not pretty, but has a long record of knock outs. Lets make it a clean fight, especially you Goo.






















We are now off to the very top secret Parmain laboratory to do some empirical analysis of the sealing options.
















Below is an example of the culprit that mucked up our Garmin shadow drive sensor, and an example of how not to apply teflon tape to pipe threads. When the tape is applied below the starting threads, the threads can cut off the lower tape, and allow it to enter the hydraulic system.
















I screwed that fitting in, and then screwed it out, and you can clearly see what happened. The threads did cut off the excess tape, which will migrate into the hydraulic system, mucking things up, as it did in the shadow drive.
















If you use teflon tape, this is what it should look like. You must keep the tape clear of the lower threads. When this fitting was screwed in, and then screwed out, it came out cleanly, with no tape left behind.
















Using the goo, you can actually encounter the same problems you have with teflon tape  By getting goo down on the lower threads, the same thing happens. The goo ends up on top of the fitting, allowing it to also get into the hydraulic system with the same ill effects. I did overplay the amount of goo used to illustrate the point, but it is not easy to apply it from the tube directly.
















Below is the a picture of that same fitting screwed in, and then backed out, and you can see the excess goo hanging off the end of the fitting.
















I mentioned in the beginning, that I have mixed emotions about all of these sealing products. They all have some pluses and minuses, and there is a huge number of products to chose from. They all have one thing in common, and that is proper application techniques. 

I'm not a fan of TFE paste. Yes it works well when properly used, but it can be messy. The products sold in tubes are hard to apply on the small fittings you see above, and many of them need some curing time to become truly effective. The second problem I have with the pastes, is despite the claims of many that they don't harden, they do. I know this because when I install an autopilot on a ten year old boat, that has been baking in the Florida sun, I have to often unscrew the 90 degree fittings off of the back of the helm pump, and replace them with tees. The TFE paste is often very hard, and brittle, and little chunks break free, and can fall into the helm pump if you are not very careful. The products that come in the cans with a brush, have brushes that are designed for larger household plumbing pipes, so you often need a smaller brush to apply it.

Truth be told, I would rather use teflon tape, than TFE paste anytime. Properly applied it works well, it isn't messy, but I suspect that companies like Teleflex have a long history of dealing with poorly applied teflon tape, and less issues overall with the paste products, and that is why they recommend that or other products. There are a couple of liabilities with the tape. You must wrap it in the right direction (looking at the fitting with threads down, you go counter clockwise), and you have a high probability of leaks, if you back the fitting off, even a little bit during installation.

Nothing is perfect in life, and often we have more options than we would like. It would be nice if there was only one solution available. We could grumble about it, but couldn't do anything about it, but this is not the case. Below is my current favorite. It is a purple colored liquid, and has a thin nozzle applicator, that makes it easier to apply to smaller fittings. Loctite makes many products that are similar, but avoid the products that are also thread lockers, if you ever want to get that part back off in a dark very cramped place. This product, although it works very well, also has a tenacious death grip on the threads, and under some scenarios you may need a heat gun to expedite removal. If I run out of it, I always have the tape (sorry Marc).

TFE Goo did win the fight, and Teflon Tape is still trying to wash it all off in the shower.
















If you have any better suggestions, edify all us with the comment box below.

I couldn't resist using the interesting laboratory picture, and I was not telling you the truth. It isn't my lab at all. The lab actually belongs to Mr. Tesla, and he is sitting in the chair. I won't do this to you again ever. Well mostly never, I might even keep using teflon tape, maybe....

Read More..

Friday, 7 April 2017

We’re ready to go after an unplanned month in the Port of Bundaberg



September 19, 2015

So how was Bundaberg?
Other than the frustration of being dock bound with a broken boat when we should have been sailing amongst Australia’s best tropical islands, Bundaberg has been a very pleasant stop. The Port of Bundaberg marina has proved to be the friendliest and most accommodating we have encountered anywhere in our travels in Australia, Asia or Europe. Gary from Marine Torque here at the port performed the work in our engine room. He came highly recommended by other cruisers and we can only echo their praise. He was helpful, efficient and reasonable with his charges. Best of all, he was very reliable. Our pet hate is tradespeople who don’t turn up when he or she say they will. A more complete review of the marina appears at the end of this blog.

It's a very friendly atmosphere at Port of Bundaberg. Rob with Chris & Sally from Sea Whiskers tucking into a feast of fresh seafood with hosts John & Kathy on Mystic Moon. Karen was behind the camera for a change.

Overall the weather has been good and we’ve made many new friends here. The city of Bundaberg itself offers all the amenities and services you could want while the Shalom Farmers markets held each Sunday is THE place to go for an abundance of fresh, just picked produce direct from the growers at very good prices. Playing tourists, we visited both the turtle information centre at Mon Repos Beach and the Bert Hinkler Aviation Museum and found them both excellent. We never got around to making our planned visit to the Bundaberg Rum distillery for a tour but everyone assured us that it is well worth a look – and taste.
The Hinkler aviation museum in Bundaberg is excellent.
 
Yep! Bundaberg has been good – but we still can’t wait to get out of here.

Yesterday we warmed the engine, engaged forward, slipped the lines and left berth Purple 13 at Port of Bundaberg Marina for the first time in 25 days. It felt good, very good in fact. We’d love to say that we were finally on our way, continuing on towards the tropical waters of the Great Barrier Reef but we are cautious people. This was still to be a small sea trial up the Burnett River. We’d run the motor and transmission at the dock the day before but we wanted to make absolutely sure our repairs were performing properly before we consider heading back to sea.
While in Bundaberg, along with having the transmission reconditioned and the water pump replaced we’d also had to replace the aft head when the electric pump motor on it died. Crazy as it may seem, a replacement electric motor was $280 yet a complete toilet (including the motor) was $219. Go figure. OK. If the old superstition of things always going wrong in threes is correct, at least we’d completed our trio of troubles so hopefully all would be fine now. Karen says she’s not superstitious but still suggested that maybe being moored in berth Purple 13 may have had something to do with our run of misfortune.

It was such a relief to be moving across the water again and we were starting to relax and look forward to a little sightseeing trip up the river. That was until the engine suddenly dropped in revs and stopped just a couple of hundred metres from the marina. Suspecting an airlock in the fuel system, we steered the boat out of the shipping channel while she still had some headway on and dropped anchor. The engine had been moved during the transmission work so we began working along all the fuel lines to find if any may have been loosened or damaged or valves bumped open to create an air leak into the fuel system. After bleeding the air from the system the motor started and ran fine but the temperature rose more quickly than normal. A deeper investigation revealed that the coolant was not circulating through the engine.  We eventually found the culprit was an airlock under the thermostat which caused it to remain closed. That fixed, we refired the engine and all was fine, even after an hour and a half of pottering around in the river to give everything a good test.
Heading back to the marina Rob decided to see if we could move to an outside berth that would be easier to manoeuvre the boat in and out of. The idea of changing berths appealed to Karen however, when we tied up in Black 13, she suggested she wasn’t sure it was an improvement.

We now have an operational boat again and can restart our trek to tropical climes as soon as the current bout of adverse winds abate.  BRING IT ON!!!!!
 
We’ve said all along that this was to be our shakedown cruise although we never expected to get shaken down this much. Here’s the report card

What worked
The lines that held us to the dock.

What didn’t work.

Transmission, water pump and aft head.

What we did right.

We sought recommendations from local boaters regarding reliable tradespeople and good suppliers which proved invaluable.

We didn’t take any shortcuts with repairs and opted for full overhaul by an old school marine transmission specialist well versed with our era Borg Warner.

We sea-trialled the repairs rather than just running things at the dock and saying ‘She’ll be right.’

How we screwed up.

We thought because a container on board we inherited from the previous owners said it was coolant it would be coolant inside. Imagine our surprise when we opened it to use and found it full of oil. So it was off in the dinghy to get more.

We never made it to the rum distillery. Tragic!

Strange we know but we expected this to contain coolant not oil.


 MARINA REVIEW: Port of Bundaberg Marina  *****

 

http://www.bundabergportmarina.com.au/


Weekly rate for our yacht (1m) – $260 AUD  (including GST, water, power and car parking)

 The marina is located just inside the mouth of the Burnett River and is very secure in all winds. The berths are very wide and most easily accessible. The marina staff are extremely friendly and helpful and will happily assist with berthing etc.

 There is a self serve fuel dock on sit and during our stay diesel was $1.27 per litre (same price as the service station in Bundaberg), There is a small but reasonably well stocked chandlery located in the marina and extensive marine services are available including sail maker, haul out and dry storage.. Bathroom facilities modern and clean. Coin operated laundry onsite. Myport WIFI available but not included in charges. Other facilities at the marina include a very popular restaurant/bar and  takeaway fish and chip shop. Cruisers Corner is a nice social hub for cruisers provided by the marina with BBQ, fridge, seating and a television.

 Ocean Pacific Seafoods is located next door to the marina offering exceptional fresh seafood and bait. They have a special for marina clients of a fresh platter for two with smoked salmon, two spanner crabs, two Moreton Bay bugs plus prawns for $30. HIGHLY RECOMMENDED!!!


 An IGA supermarket, Post Office, Bakery, Café and Hotel are located in the township of Burnett Heads about a kilometre from the marina. The IGA and Hotel both provide a free shuttle bus for customers.

 The marina provides a free shuttle bus into the Bundaberg CBD about 20 minutes away Monday to Saturday and to the Farmers Markets on Sunday Morning.


The facilities and incredibly friendly, helpful nature of the staff sees us give our first ever Five Star ***** rating to this marina.

 
Cruisers Cove is a great amenity for the  local live aboards and visiting cruisers to meet and socialise.


 We love to receive comments on our blog from readers. If you do leave a comment and you also have a blog, please leave a link as well. We'd like to click over for a visit and leave you a comment too.

To stay right up to date with what we’re up to  and see lots more photos check out and 'like' our Dreamtime Sail Facebook page at Dreamtime Sail
 https://www.facebook.com/DreamtimeSail/
If you have only recently discovered our blog and would like to read how it all started, or work through our previous adventures, click the link to go back to our first blog entry. Stuff it. Let's just go sailing anyway. 
We hope you enjoy reading the previous posts to catch up on our story.


Read More..

It seemed like such a good idea at the time





















A friend of mine, Mark, got a "Stripper" canoe kit as a gift one year from his wife Cathy. The kit consisted of a pile of bead and cove strips, precut rails, a few assorted pieces of wood, and about 10 pages of instructions. He was clueless about how to actually build it, and asked me for some help. I carved out some space in a building that my dad was using to build a 35' John Marples Searrunner trimaran. My dad never wanted to use the boats that he built, and rarely did. He was a civil engineer, and just loved the intellectual exercise involved in building boats.

I had never built a Stripper craft, so as I reviewed the plans, I noticed the instructions said you were to use small brads to nail each strip to the frames to hold them in place, and when the hull was done, you pulled the nails out, and filled the holes with toothpicks. I thought this was a stupid way to do this, and you would end up with a hull that would have hundreds of obviously filled holes in it.

So when I lofted, and built the construction frames for the hull, I drilled holes along the edges, and used small C-clamps to hold the strips in place instead of nails. The first few strips were glued in place, but it was hard to get a good fit in between the strips where there was no frame to secure it to, so I  milled small U shaped pieces of wood. These pieces of wood would fit on top of a strip, and had a string attached to it, with a brick at the other end. This weighted down the strips while the glue was drying. Construction moved at the blistering pace of about 8 strips per day.

Now, I don't want you to think at this point that I was actually building this little vessel. I lofted the frames, gave instructions on how to do it, and my friend Mark would come in and actually do the work, while I studied the problems encountered, and his progress. So along the way, I had a slowly dawning epiphany that there might be a better way to build this type of boat. The things that I didn't like about the construction technique were the problems in getting a good fit in between the strips, and when the hull was done, you had a polygonal (lots of flat surfaces) structure that had to be hand faired into a curvaceous shape. Although this wasn't hard to do on the outside of the hull, it did expose any gaps in the the glue, and these gaps had to be filled, and again sanded, and sometimes you had to remove a lot of hull material to get a good shape to the hull. On the inside of the hull, there was little you could do with the polygonal shape, except sand off the excess glue, and the pace of construction was glacial

After thinking about this for a while, I tried a little experiment. The canoes strips were a 1/4" of an inch thick by 3/4" wide. I took a plank of western red cedar, and cut a bunch of strips that were 1/8" thick by 3/4" wide. I made a small curved mold, and attached a bunch of screws around the edges. I took the strips, taped together into a small sheet and laid them out on the mold, and used string to lash them into place. I put a piece of four ounce fiber glass, on top of the strips, rolled on epoxy, and then lashed a second layer of strips on top. I covered the layers with plastic, hooked up a vacuum pump, and went away for a few hours.

After the epoxy cured, I came back to look at what had happened. The two layers of western red cedar had shaped themselves to the shape of the mold. The surface was fair inside, and outside. I then epoxied four ounce glass on the inside, and outside. The result was outstanding. Strong, tightly fitting planks, good looking, and the exact shape of the mold. "Strip Molding" was born. You can learn more about Strip Molding, at the link to the right, titled "Strip Molding 101". This is a scanned article from Boatbuilder magazine, I wrote in 2000.
















In a great burst of enthusiasm, I decided to embark on an adventure in boat building, and started to build canoes, because you only needed one mold to make a symmetrical, mirror image vessel. I studied the materials carefully. Aerospace grade epoxies, clear acrylic aliphatic urethanes with UV inhibitors, cast bronze fittings, western red cedar, and Honduran mahoganies were all the materials of choice. The results were stunning. No fasteners, perfect hulls, beautiful woods, strong, light, and with clear, sun resistant coatings that would last for many years without maintenance.

















I built molds for John Marples' Gull and Daffy dingies, with sail kit options, and I then went back and started to play with canoe options. One of the first things I added, was a trolling motor option. A removable oak bracket could be attached, and a Minn Kota electric motor could be attached.


















To power it, wiring for batteries was embedded under the keel strip connecting the fore and aft compartments, and compact AGM batteries could be placed the the fore and aft compartment. A trolling motor outlet was installed, along with a 12VDC outlet, used for charging, and other needs. The little vessel had a range of about 12 miles, at about 4kts. If you slowed down, the range increased.






















You gotta have drink holders for the adult, or otherwise beverages.


















Since you have 12 volt power, you can have Orff's Carmina Burana blasting out of the speakers while underway. It still sends shivers down my spine.


















As long as you have batteries, you might as well charge then while underway, and a mahogany framed solar panel was added. The panel was not adversely affected by shadowing, and had a clear plastic coating, so it could double as a table, and the caned seat backs were made reversible
















So out of these improvements, came the "Piece d Resistance" the Solar Electric canoe. With the solar panel, the range increased to about 15 miles on a sunny day. I took one on a three day camping trip, 26 miles down the Peace river, and never once touched a paddle, although I had them. The solar panel was able to shove enough extra charge into the system, over the three days to give me power to spare for the trip.
















All of these boats were beautiful, and cost competitive. The solar electric canoe sold for $5500. As a comparison a new wood Old Towne canoe with a clear finish now sells for $7800. But for love or money, I couldn't sell enough to make a profit. I did boats as furniture, spent thousands on brochures, advertising in the New Yorker, and Wooden Boat magazines, and did boats shows, but to no avail. I sold a lot, but never quite enough to make a profit. In the end, I did find a outlet selling them in high end art shows, but the life of a nomad with a big truck full of boats was not what I desired. After three years of trying to make it profitable, I again had a slowly dawning epiphany. People buy expensive high technology boats, and keep them outside in a highly corrosive salt water environment, and by waiting for a few weeks, something will break, and the owner will call you to get it fixed.

So I shut down, the boat building business, and started to repair boats, and install marine electronics, and I instantly started to make money. Okay, so why couldn't sales and marketing genius boy make a buck with such a cool product? I have had a long time to think about this. The first is geography. Southern Florida, is not exactly a hot bed of small wooden boat enthusiasts. I think, had I been doing this in the right northeast location, the reception would have been better. The second reason is you had to see, and touch the boats, to buy them. Despite all of the advertising, only a few boats were sold from it, and the third reason was they looked so good, people were afraid to use them, and I know for a fact, that most of them are hanging in the summer house as an "object d art".

It seemed like such a good idea at the time.


Read More..

Thursday, 6 April 2017

Carving the Ribs


While the gunwales waited to dry and set, I turned my attention to making other structural components for the canoe, beginning with the ribs. Most readings mention the ribs taking a while to prepare properly and the warning to make extra ribs to account for normal breakage during the bending process.

The half-image Adney plan for the 11'8" Attikamek hunting canoe illustrates 3 ribs between the stem piece and end-thwart; 6 between the end thwart & intermediate thwart; and another 6 between the intermediate thwarts & centre thwart. This means means that for the full canoe, there will be double this amount - a total of 30 ribs.

At quarter scale, the ribs would need to be ⅝" wide and 3/32" thick. Following Ted Behne's suggestion, I first tried to make a single rib as practice using a broken piece of cedar from my earlier frustating attempts at making the gunwales. This way at least the materials wouldn't be a waste. The actual ribs would be carved from a single, large chunk of cedar provided in the kit. The practice rib I carved was placed on the soaked cedar piece and lines were drawn at a little wider thatn ⅝" intervals to serve as guidelines for the splits. Luckily, this piece split rather evenly so I was left with 6 pieces around the perfect width for ribs.


Carving a rib from broken gunwale batten; Sample rib on soaked cedar stock; 6 split cedar battens

These split cedar battens were about ¼" thick so in theory they could be split a few more time to form neat and tidy ribstock...that's in theory of course. I'm no master splitter and while I tried to learn from mistakes in shaping the gunwales, the cedar would not split evenly along its thickness. For many of the battens I was only able to split the thickness once, some of them allowed for 2 splits, and one even allowed 3 splits. This was not without its consequences however - my crazy sharp Mora Canoe Knife sliced into my fingertips twice and the tip slightly punctured my thumb leading to more bloodletting and band-aids. But a rough pile of ribstock continued to grow. These were then thinned to 3/32 thickness with a blockplane - a non traditional tool in canoe making, but necessary in my case. I've got a new respect for those master builders who could split and shape cedar perfectly with just a crooked knife. Each of the ribs was checked for appropriate thickness - a time consuming process.


Pile of rough ribs; Shaping with blockplane; 3/32 thickness (the red spot is blood from my punctured thumb)

In the end, I separated my finished ribs based on whether they were of decent quality or low-grade (defects in my splittling). I was left with a total 26 decent ones and 6 not so good ribs. By this time, I was pretty much out of stock to make ribs and was really on the edge in terms of the necessary numbers. Then I realized I needed temporary ribs (not part of the normal ribstock) when preparing and laying the sheathing in the boat. Clearly I didn't have enough ribs. Another executive decision was made to slightly deviate from Adney's plan. Instead of spacing ribs & lashing every ½", I redrew the lashing spots at ⅝". This reduced the number of ribs between the thwarts to 5 each instead of 6, resulting in 26 ribs for the boat...the exact number of quality ribs I have on hand. Let's hope this compromise and the bending process works out well.

The last thing I did was lay out the ribs (on the plywood box packaging of the kit) and numbered them in pairs starting from the centre thwart towards the ends. They all have relatively random lengths now but will be cut down to size after the bending process.


Ribs layed out and numbered


Next up, prepping the stem pieces & headboards as well as carving permanent thwarts.
Read More..

Organizer Roblox build a boat to survive the tsunami


Roblox build a boat to survive the tsunami is normally one in every of a few possibilities inside at this time We understand within the checklist msn So that they can give priceless information and facts to your viewers we now have experimented with to get that next importance shots available Roblox build a boat to survive the tsunami As well as right here you will observe right now, such imagery are generally applied out of your prominent powerful resource.

ROBLOX HIGH SCHOOL UNCOPYLOCKED - ROBLOX Slide Down this Awesome New Slide :D - ROBLOX Week At Freddy's 2! - ROBLOX 3k+) Pokemon Tycoon v2 - ROBLOX

Individuals are for sale to transfer, in order for you plus prefer to accept it push keep banner in the article, together with it’ll get straight away bought within your laptop. In conclusion to be able to get innovative in addition to most current video relevant to Roblox build a boat to survive the tsunami , i highly recommend you observe united states for bing and also and also take note of this web site, you make an effort much of our most beneficial to provide you day by day modernize with all new and fresh content. We hope you like our website.

Roblox build a boat to survive the tsunami - this has been posted with the expectation which you may easliy enhance beneficial to absolutely everyone. This informative article can easily assist being a guide if you are puzzled to choose the proper information This Roblox build a boat to survive the tsunami posts may be your best option being placed on the task program, the way it possesses its very own approach will probably think far more content Roblox build a boat to survive the tsunami - Handy available for you thus most of us looking to uncover a trusted supply that will help you come across creativity with no dilemma. keep away from towards discover these pages, because maybe one day you will need it back mainly because an individual's inspirational recommendations.


Read More..