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Tampilkan postingan dengan label design. Tampilkan semua postingan

Minggu, 20 Maret 2016

Design 2394 Mafisto


This cold molded sloop was designed and built for single-handed sailing. She was built by Driscoll Custom Boats of San Diego, California and launched in 1980. Heres a design review from the time of her launch. Please double click for zoom.


Here are the plans.


And heres a close up shot of that funky doghouse.


Principal Dimensions
LOA 39-5"
LWL 31-0"
Beam 11-6"
Draft 6-3"
Displacement 21,336 lbs
Ballast 9,000 lbs
Sail Area 730 sq ft
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Design 2580 Baltic 58


The Baltic 58 was introduced in 1991 to fill the gap between the Baltic 52 and Baltic 64. Like the other Baltic models designed by the firm, the 58 was designed in conjunction with Baltics chief designer, Tor Hinders. Sparkman & Stephens was responsible for the naval architecture and the design of the hull shape, appendages and sail plan. 4 boats have been built to the design.

Heres a design review from Cruising World magazine.


Here are the plans including 2 alternate layouts.


Some interior images.


Principal Dimensions
LOA 58-6"
LWL 47-7"
Beam 16-7"
Draft 10-6"
Displacement 41,900 lbs
Ballast 17,500 lbs
Sail Area 1,605 sq ft


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Design 2159 Sumbra III


Sumbra III is a very typical One-Tonner design from the period. She was built of wood using cold molded techniques by Cantiere Sangermani of Italy and launched in 1973. The design utilized the Lines, Construction and General Arrangement plans from design #2094. If you recall this was a speculative design that was used numerous times, such as the boat Lightnin, design #2094-C1.

Here is the Deck plan. The style of this drawing is interesting and was commonly done. Only the starboard sheer line is drawn since in the draftsmans mind the boat is symmetrical, so why draw it?


The ballast keel was also modified from #2094. Heres the Ballast Keel plan.


Principal Dimensions
LOA 38-6"
LWL 28-9"
Beam 11-9"
Draft 6-3"
Displacement 15,309 lbs
Ballast 8,000 lbs
Sail Area 604 sq ft
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Sabtu, 19 Maret 2016

Design 2556 105 IMS Cruiser Racer

 

According to the files, this preliminary design as to be constructed of aluminum and designed to rate well under the IMS Rule as a cruiser/racer.

Here is the general arrangement plan.  Its a nice layout.  With the crew located aft it leads me to believe this boat was destined for a European client.


Principal Dimensions
LOA 105-0"
LWL 86-0"
Beam 24-1"
Draft 9-10"
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More About Bonne Amie Design 1068

One thing about social media is that if you post something that is wrong, people will straighten you out pretty quickly. A few days ago I posted an article about the Nevins Yawl Bonne Amie which is undergoing restoration. We received the following from her owner:

"Bonne Amie is actually being restored in Seattle, WA by Jensen Motor Boat Co. (Est. 1923), I noticed you had mentioned Port Townsend. She was the first in the series and launched in 1955 despite having hull #2 (Golliwog was launched in 1956 but Colin Ratsey got the distinction of owning #1 according to Olin). The masts are replicas of the originals made by Nevins down to the hand made hardware. All her original deck hardware has been located and restored to original including her chrome primary bases and all the interior hardware (see attached images of the cabin lights). Restoration has actually taken 6 years, I am enclosing another couple pictures if youd like to add them to the post."

I did look up that issue about what hull number she is. Heres an early article which bears this out. Its interesting to note that the magazine misspelled her name.


Our index card file also shows Bonne Amie launched in 1955 and Golliwogg in 1956.

Here are some images of her spar under construction and the fitting and hardware he mentions.



Thanks for sending these and we look forward to further updates.


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Design 2565 100 Steel Racer Cruiser


This preliminary design was developed in 1990. The boat was to be built in steel as this was the clients preference. The most notable thing about the general arrangement is the generous engine room, located at the mast and with full standing headroom. It would be a real luxury to have such an engine room. It looks like it was achieved at the expense of a generous captains cabin.


Principal Dimensions
LOA 100-0"
LWL 80-0"
Beam 25-3"
Draft 12-4"
Sail Area 4,252 sq ft
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Design 2235 1 4 Tonner


I looks like at least two boats were built to this design by South Hants Marine of England and launched around 1975.  The boats were built using C-Flex, a type of fiberglass "planking" that was developed by Seemann Composite Inc. in the early 1970s. Its made up of flattened longitudinal glass rods with roving in between, woven together with a light fiberglass cloth to keep things in position, and this allows it to be worked on the bias to create compound surfaces.

Here is the general arrangement.


Principal Dimensions
LOA 27-10"
LWL 20-0"
Beam 7-0"
Draft 4-11"
Displacement 4,634 lbs
Ballast 1,700 lbs
Sail Area 288 sq ft
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Kamis, 17 Maret 2016

Design 2228 C1 Saudade II Pinta II


Two identical sisters were built to this design for repeat customers for the German Admirals Cup Team of 1975. The boats were constructed of aluminum by the yard of Walter Huisman of Vollenhove, Holland. I apologize that we dont have any photographs of these nice looking boats.

Here is the general arrangement Plan.


Principal Dimensions
LOA 51-2"
LWL 36-10"
Beam 13-10"
Draft 7-7"
Displacement 27,902 lbs
Ballast 16,700 lbs
Sail Area 1,012 sq ft
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Rabu, 16 Maret 2016

Design 1710 Cybele and the Swan 36

One-Off Cybele in Wood - Swan 36 Prototype
Built by Molich of Denmark

Design #1710 has to be the most utilized design in our collection. Numerous one-offs were built of wood as well as production models from various builders in fiberglass. The Gaia Class was built by the famous Italian builder Benello, building 19 boats to the design.

Additional boats were also built to this design with slight variations, such as the Sigma 36 Class (built by Cheoy Lee), Rumbuster and many more in both wood and fiberglass. In all I believe 60 boats were built to this design with slight variations, without counting the entire Swan 36 production run of 90 boats delivered.

Heres a fairly complete list of boats.


Regarding Swan, first a little background. The Swan 36 was the very first model for Nautor. Heres the story about the start of Nautor by the founder, Pekka Kostenkyla, in his own words.

How the Swans Were Born
by Pekka Koskenkyla
Founder of Nautors Swan


It all started as a hobby. I grew up on the coast (Helsinki) and I have always had or wanted to have boats. My first vessel was a canoe, which I built myself in the evenings after school at the age of 14. In fact next year I built five of them for sale. Then nothing much happened in my boat building career for ten years because of school and university, where I majored in economics.

After graduation I wanted to have my own boat, so I started to build a wooden sailing boat of 11-meters. I worked in the evenings and weekends in my father-in-laws shed in Pietarsaari, where I had a job selling paper sacs. It took about 2 years to finish the boat and when it was almost complete a dentist from Helsinki wanted to buy it. I gave him a, what I thought, was a high price and he agreed. So I thought that boat building looked like an easy way to make money doing what I liked. I decided to start a yard.


The first step was to find a name and get drawings. The fact that I happened to think of SWAN was lucky, because I believe that this name and the connotations it implies was important for the success of the company. The other decision, which also turned out to be right and even more crucial to our success, was to choose S&S as designers.

My first thought had been to use the drawings of the boat that I was building, especially as it was just the right size I was looking for. An important factor in the overall length of the boat that I wanted to build was that any boats over 11-meters in LOA were exempt from VAT tax. This was of course a government concession made for the commercial fishermen and nobody had thought of yachts, because pleasure craft in Finland at the time were so small. A few years later this loophole was plugged.

The first boat that I built was designed by a local amateur naval architect and full time teacher of mathematics, Eivind Still. He was naturally disappointed, when I decided not to use his drawings, but Still later became quite well-known in Scandinavia with the many boats that he later designed. At the time I was so ignorant about this business and sailboats in general, that I did not know any yacht designers - not even the most famous. Therefore I went to the local yacht club in Pietarsaari and asked, who was the best designer in the world. I was told that it was Sparkman & Stephens.

I found their address from an old yachting magazine and wrote to the company to tell them, that I needed drawings of a sailboat about 11-12 meters long. No reply! That really was not so surprising, because I did not even have letterheads, let alone a company. I waited some more and then telephoned to their office in New York. I got Rod Stephens on the phone and he told me that by coincidence he was coming to Finland in a couple of weeks to inspect a wooden sailboat being built at the time. He said we could meet. Later I got a message from his client in Finland that he could see me at 6 oclock in his hotel room in Helsinki. However I was not sure if that was in the morning or the evening and I could not reach Rod to verify, so I decided not to take a risk and went to his hotel at 6 AM. He was there waiting for me. He must have been impressed by my enthusiasm, because that was all I had to show for.

In any case, he gave me the drawings of a 36 feet sloop, which was to be marketed as the SWAN 36. Later he told me that they had been waiting for years for somebody to approach them to design a production boat in fiberglass, but I was in fact the first one to do so. A couple of years later a lot of builders were knocking on their door, but S&S were very loyal to us and did not give out competing designs. The drawings I received from Rod were of a boat already built in wood.

Later I have sometimes thought how was it possible that I got those drawings. Maybe Rod did not take me very seriously after all? When I came back to Pietarsaari I needed a suitable space in a hurry. Outside the town, far from the sea, there was an old brick building, which had been used to process hides (skins). It was empty and I was able to rent it at a very low rate. It needed some modifications like a much bigger door and heating etc., but we had a place to start. I appointed my first wifes uncle as a foreman and we started to hire people.

As I had already built one boat in the area I knew that there were many skillful joiners in the surrounding area of Pietarsaari. Many of them were part time farmers and eager to take a full time job, because their farms were so small that they could not sup-port them. In fact these people were busy only at harvest time during the summer. Many of these people had a small woodworking shop at home and they had been doing doors, window frames and furniture etc. to supplement their income.

These activities were, however, getting uneconomical, because more and more factories were producing these items on a mass production basis and thereby suppressing prices. The other category of workers I was able to hire were small individual boat builders. These were typically also small farmers or sometimes fishermen, who could not fish or farm during the winter because of ice and snow. Their boat building operation was family business, and most of them built wooden fishing boats, but there were some, notably the Branbacka family, who built pleasure boats to customers orders.

If we go back to the history of Pietarsaari and the surrounding counties we find that this area was once one of the main ship building areas in Scandinavia. This was the era of wooden sailing ships during the time when Finland was part of Sweden. These mostly commercial vessels were built in amazing numbers and with amazing speed. In the Pietarsaari Museum there is more information about all this. In fact a few years ago they even built one vessel to these old drawings on a voluntary basis.

I have gone into all the above in more detail, because it is important to understand that the quality of the workers and their skills in the counties around Pietarsaari is something very special. If I had not had access to these kinds of people we would have failed, especially considering my lack of experience in business in general and running a yard in particular. Fortunately there was no shortage of these highly skilled and motivated people in the area.

We were like a family and run the business as such. One could either say that we had perfect industrial relations or that none of us had ever even heard about such a thing. There was one episode that comes to mind, when I think about the loyalty of our workers at that time. My very first delivery of the SWAN 36 was about to happen. This was the only wooden SWAN ever built. It was built in mahogany. The reason was that I thought we would save money this way, because a fiberglass mold needs a wooden plug and rather than build a plug and then destroy it, we decided take the mold off a real boat that could be sold. All went well except that when the hull mold was being made it cracked the planking of the wooden hull, because when the fiberglass and resin mixture hardens, it becomes very warm, which again dries the wooden hull underneath. These small cracks were repaired, but on a varnished surface they could still be seen.

My customer, a businessman from Helsinki, demanded a discount of his boat because of this. My situation, however, was very simple. If I did not immediately get the foil price in order to pay back a bank loan I would go broke. The customer did not want to hear. He insisted. He even ordered a trucking company to come and take the boat away from the yard. When he and his men with the big truck and the crane came, my men decided to stop the operation by physically blocking entry into the yard. As I had more men and they seemed to be more eager for a fight, my customer decided to pay in full.

The first year we built four boats, the wooden one, which we used for a plug and three fiberglass SWAN 36s. I was able to sell all of them at a very early stage. The most important factor for this initial success was not so much my honest looking face or the fantastic workforce we had, because we had nothing to show. It was the name and reputation of Sparkman & Stephens. It is difficult to understand now how superior in reputation they were compared to other yacht designers. There was only one best choice then. The name and reputation of S&S was built on the winning boats of their design in all ocean racing from the Americas Cup, One Ton Cup, Admirals Cup, Cowes week etc. Most of the winners in these races were designed by S&S.

Then came Nautor from Finland, the first to produce S&S designed boats not only in series at a very reasonable price, but also in a new and stronger material than wood. On the top of that, the SWANs were lighter as well, and therefore had a better chance of winning races. Just to broaden the appeal to more potential buyers my sales argument was that because it was built of a lighter material we can afford to make the boat with a nice wooden interior and therefore appealing as a nice family cruising boat as well as a racing boat. This was the argument the racing minded sailor needed to convince his wife. The racing in those days was not as competitive, or rather, the boats were not as extreme racing machines as they are today, so it was in fact possible to win big time with a SWAN that looked like a family cruising boat with heavy teak interior.


Swan 36

Here are the plans.


The following is a very good design review that appeared in the Yachtsman magazine in 1967.


Principal Dimensions
LOA 36-0"
LWL 25-6"
Beam 9-8"
Draft 6-0"
Displacement 14,650 lbs
Ballast 7,440 lbs
Sail Area 545 sq ft


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Boat Construction Using an Existing Design

Boats can be and are regularly built using an existing design. This is a cost effective way to obtain plans for a proven boat. Click here for an example project. To build a boat from one of our existing plan sets a royalty must be paid. Please contact us for a quote.

In many cases existing plans are modified or updated. For example a classic sailing yacht originally designed and built using carvel planking will often be re-engineered and updated for cold molded epoxy construction. Another common example may be modifying an interior arrangement to suit ones particular needs. Please contact us for further information.
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Senin, 14 Maret 2016

Design 1674 C1 Sunward 48


Weve made mention of this design before. The original boat was named Toc Toc and was built of steel. The boat was eventually developed into a production fiberglass boat that was built and marketed by Marlow Yachts of Deer Park, New York and called the Marlow 48. This was around 1970. From there the molds were purchased by Bennett Brothers Yachts of Wilmington, North Carolina. The model was renamed the Sunward 48. What you see here pertains to the Sunward 48.

Here are the plans.


And here is the most famous of all Sunward 48 owners, Walter Cronkite, aboard his boat Wyntje.


Principal Dimensions
LOA 48-0"
LWL 38-6"
Beam 14-3"
Draft 5-7"
Displacement 48,000 lbs
Ballast 16,500 lbs
Sail Area 1,033 sq ft


Read More..