domingo, 30 de diciembre de 2012

Sentina, tanque y otros

Diciembre 2012

  Con el poco tiempo que tengo sobre el proyecto puedo confirmar que la reconstrucción de un barco nunca es por etapa, siempre se saltara de un área a otra dependiendo de los percances y soluciones que se van presentando al momento.
En un principio cuando plasme el plan de trabajo pensé en seguirlo estrictamente sin tener que cambiar rumbo, si no mas bien terminar una etapa y seguir con otra, pero nop que va!! Así no se reconstruye un barco, es el quien traza el rumbo.
En la etapa del rigging que describí en el tema pasado explico la situación con detalles de lo que me ha llevado a trabajar en ostras áreas, manteniendo stand by los planes de renovación del rigging, adelantando de esta forma en áreas como la sentina, la limpieza del tanque de gasoil y los manparos.
Con estos trabajos y despues de pasar varios malos días, entendi que para trabajar fibra, sobre todo para los  lijados tan prolongados se debe estar bien cubierto. En verdad es mejor el calor que las consecuencias de la fibra vieja en la piel.



domingo, 23 de diciembre de 2012

Rigging I (Desarmado del Mástil)

Noviembre / Diciembre 2012

   Llego el momento de hacerle frente a lo que mantiene al mastil en vertical, al rigging.. Mastil, terminales, guayas y todas esas partes y piezas que soportan al mastil en su lugar. Esta etapa es una de las mas importantes ya que en ella se sobre expone la seguridad, nadie quiere pasar por la perdida del mastil navegando, por lo tanto hay que tomar en cuenta cada detalle para garantizar la seguridad.
Con una grúa telescópica y con ayuda de varios amigos de la marina bajamos el mastil a tierra y caminamos unos cuantos metros con el en el hombro para llevarlo al patio donde procedería a hacerle mantenimiento.
Sacamos todos los cadenotes para hacerlos nuevos de acero naval 316,  ya que este material  tiene una resistencia a la corrosión  mejor que el 302 y el 304. También tiene  propiedades no magnéticas, por lo que es el mas recomendado en aplicaciones nauticas.
Hice una bien estructurada lista numerando los sta-lock que necesitaría, los Mts de guaya 5/16 que compraría,  mosquetones, pines, cupillas etc..todo fluía perfectamente y el proximo paso seria pintar el mastil.
Se procedió a sacar todas las platinas, tornillos, winches, cornamuzas y todo objeto adjunto al mastil para lijar y revisar bien, fue entonces cuando pude darme cuenta que bajo mucha de las platinas especialmente en donde van las crucetas, el mastil estaba corroído gravemente por la electrolisis, consecuencia de un mal aterramiento y de no aislar el acero del alumino, que juntos son fatales para el aluminio.
Esto cambio inesperadamente el rumbo del proyecto obligándome a analizar las diferentes opciones, buscar otro mastil? reparar el original para mantener la integridad del clasico?.
En la pagina de classicswan expuse el problema de la siguiente forma:

Swan 36 Mast


Hi, I am the new owner of the Musiu (swan S&S 36 1969 / # 59), I bouth this boat 3 month ago as a vessel project and I have been working on it.. I know it will be a lot of work and this web is helpping me, so thanks a lot for all the information, I can see here are enthusiasts swan 36 owner hwo has many experiences. Right Now I am in the fhase of the rigging, I all ready down the mast to work on it, and when I extract all the steel laminates and shroud I found some weak point, especially where the spreader are suported. I think may be this mast coul be repared, the weakest point just where the spreader are suported is like a triangle zone (10 cm x 5 cm) in both sides of the mast, but I know it is the most important point of the mast because there are all the suported power. An other weak point is where the 2 part of the mast are joined, but how I said I think it could be repair by aluminiun profesionals. The original mast of my boat is (14, 90 mts long) and it is a keel-steped, from the deck to the masthead is( 12, 75 mts long) single in-line spreader and the boom is (3,65 mts). I found a mast in good conditions (11,50 mts long), double in-line spreader and boom (3,25 mts), but it is a deck-stepped mast.. I would have to modify the deck if I decided to use it and sacrify (1,25 mts) and I would have to cut the forestay and all the sails to. As a third option I found another mast (9,40 mts) long deck-setepped with in- line single spreader and boom (3,83 mts) with all the sails, I would have sacrify (3,30 mts) of mast but woud have a larger boom. What do yo think about these options? 1. Repair the original mast 2. Rig the 11,50 mast. 3. Rig the 9,40 mast. Has someone a personal expercience rigging the swan 36? There is some fotos of the weak point in the original mast. Thanks, Randy.






En este foro se detalla la interacción con los miembros de claassicswan quienes me han apoyado con su experiencia en la reconstrucción de clasicos Swan.



                                                           Mastil en tierra!!
 Unión.
Corrosión bajo las platinas donde van las crucetas y obenquillos

Mientras buco la mejor solución sigo con otros trabajos, espero pronto escribir buenas noticias.. Feliz navidad!!

lunes, 26 de noviembre de 2012

Inventariando, basura fuera y lijado previo.

Octubre / Noviembre 2012

La primera etapa consistió en sacar del barco todo lo que no servia, en su mayoría las maderas del interior y la teca de cubierta que ya era imposible salvar al igual que la regala.



Maderas viejas del interior



Chao teca!!

Después de sacar todas las maderas de cubierta se sacarón los herrajes, winches etc..  y una vez todo afuera se lijo la cubierta.
Las bases de los winches las lleve a pulir a una casa especilizada y los otros herrajes pasaran un profundo proceso de restauración.

Feo pa la foto!

Por un motivo que nunca comprendere los anteriores armadores del barco tapizarón todo el interior, me acorde mucho de la madre de ellos al tener que despegar todo ese cuero de cada rincon del barco dejando pegas por todos lados que sumarian un trabajo extenso con removedor y espatula. Es una muy mala idea tapizar donde existe humedad, claro buena presentación pero con el tapicero de la esquina no se encontrara hacerlo como lo hacen los astilleros hoy dian que sacan sus barcos tapizados. Ademas no estoy tan deacuerdo con ese concepto en la nautica, cada vez se usan materiales menos duraderos, pero bue eso es otro tema al final saque todo el tapizado recordandome de la madre de quien la puso.




Del interior del barco guarde todas las gavetas y puertas de teca que pienso usar cuando haga las maderas para mantener la integridad del barco lo mas original posible.
Mientras sacaba viejas maderas del barco encontre en un rincón un sextante algo que ese día me motivo a seguir trabajando. Fue gratificante encontrerme abordo de un barco en el que algunos tornillos eran de bronce, el buen acero se encontraba intacto. No solo descubria desperfecto si no tambien detalles que me confirmaban que es un  velero construido con materiales de primera que ya se no se usan y que ademas guarda la verdadera esencia de los barcos a vela.


Los winches  con sus bases, muestra del concepto Swan.

Ya el barco daba una primera impreción diferente con toda la teca afuera, sin embargo quedaban muchos tornillos que sacar de la ragala y un prblema en el que trabajare mas adelante, la rigigidez de la cubierta. Es preocupante lo debil que esta la cubierta, sobre toda en proa y las bandas pero nada que no tenga solución.






lunes, 24 de septiembre de 2012

El Musiú

   Francis Chichester, el gran navegante oceánico que influyó en diseños de barcos en los años 60 dijo que la primera condición para comprar un velero es que te enamoré al verlo por primera vez, esto es lo que me paso con el Musiú cuando lo contemple la primera vez en un muelle de Caraballeda. A pesar de que estaba en muy malas condiciones quedo dando vueltas en mi cabeza por meses, hasta que decidiera emprender la reconstrucción. El "Musiú" es el numero 59 de los 90 Swan 36 construidos entre 1966 y 1969. Un barco con personalidad que pareciera fuese parte del mar; uno de los  primeros barcos en serie construidos del cual surgiría el éxito del astillero Finlandés Nautor Swan ganando las 7 mangas de la Cowes Week  en el año 1968 dando paso a modelos de mayor eslora que terminarían en las primeras posiciones de regatas como la Whitbread (vuelta al mundo) y la Ostar (Transatlantica).
   Debo reconocer que en el tiempo que llevo navegando nunca lo he hecho abordo de un Swan, pero las líneas del barco hablan por si solas, por lo que no resulta difícil imaginar como navegara el Musiú después de pasar por una profunda restauración documentada en este blog que le permitirá soltar amarras e izar sus velas para que el agua corra bajo la quilla por rumbos que hoy son sueños.



El Musiú en Caraballeda
                       

viernes, 21 de septiembre de 2012

Sparkman & Stephens

 Fuente: www.velaclasicamenorca.com

Sparkman & Stephens

   Los hermanos Olin J. Stephens (New York, 1908-2008) y Roderick Stephens, jr (New York, 1909-1995) entraron en el mundo de la náutica desde muy pequeños. Olin, como aprendiz en el estudio de diseño de Philip Rhodes y su hermano Roderick trabajando en el legendario astillero Nevins, en City Island, en el estado de New York. Ambos, pasaron varios veranos aprendiendo a navegar en la costa de New England.

Con el respaldo de su padre y cuando solo tenía 21 años, Olin estableció una sociedad con el prestigioso yacht broker Drake Sparkman para crear Sparkman & Stephens, Inc. En sus inicios la compañía corría graves riesgos de no prosperar. De hecho, pocos meses después de su creación la crisis financiera de los años treinta, “La Gran Depresión”, acosó el mercado mundial y por supuesto a la náutica. Pese a este incontrolable acontecimiento Stephens padre encargó a sus hijos el diseño y construcción de un barco de regatas que se llamó “Dorade”. Una apuesta muy arriesgada, pero que finalmente funcionó, pues el “Dorade” ganó la Transatlantic Race, disputada en 1931 y por la que obtuvo un gran rédito publicitario.
 Olin y Rod continuaron liderando S&S participando en siete magnificas campañas de America’s Cup, incluyendo el diseño del Clase J “Ranger”, que ganó la America’s Cup de 1937 y el famoso 12 metros “Intrepid and Courageus”.

Nautors Swan

Fuente: www.marabierto.eu

 Nautor, el astillero constructor de los Swan, fue fundado en 1966 por el finlandés Pekka Koskenkylä en el pequeño pueblo de Jacobstad, donde las temperaturas invernales rondan los -30º de media. En este la base del legendario mimo puesto en la ebanistería de cada Swan.
La intención de Koskenkylä era construir el primer velero de 10 metros capaz de regatear con éxito y además hacerlo con una acomodación interior confortable para el crucero. También debía estar construido en el entonces novedoso material llamado fibra de vidrio. Se podría decir que Koskenkylä inventó el concepto del moderno crucero/regata. Y lo hizo con una clara filosofía en mente: hacer el mejor barco posible, desde el diseño al último detalle de acabado. Esta consideración ha seguido vigente hasta hoy, haciendo que la marca Swan esté tan íntimamente asociada a calidad.

Los primeros Swan

  Olin Stephens fue el diseñador de “Casse Tete II”, el primer Swan 36 salido del astillero en verano de 1967 para un armador británico que en 1968 ganó las 7 mangas de la Cowes Week. La repercusión de esta aplastante victoria fue inmediata y al Swan 36 del que se construyeron no menos de 90 unidades- le siguió pronto un 37, luego un 43 y así hasta los quince modelos que formaban el catálogo de la marca en los años setenta.

   Entre ellos destacar el 55 y, sobre todo el Swan 65, cuyo “Sayula” fue el ganador de la primera Whitbread Race en los años 1973/74. En la segunda edición de esta regata (1977/78), sendos Swan 65 ocuparon la 2ª, 4ª y 5ª plazas y durante unos diez años, el legendario Swan 65 diseñado por S&S fue el mayor barco del mundo construido en fibra de vidrio.

  Finalizando la década de los setenta, Olin Stepehns fue dejando su actividad como diseñador por cuestiones de edad. Nautor dio entonces paso a un joven Ron Holland para la actualización de su gama. Holland firmó media docena de buenos barcos, pero la relación con Swan no acabó de cuajar y en 1980 se formalizó la entrada del argentino German Frers como responsable del diseño de todos los nuevos Swan, una relación que sigue vigente en la actualidad.

  La etapa Frers en los ochenta está considerada por muchos como la más completa de Swan. Los modelos de esta “década dorada” aúnan la quintaesencia del astillero finlandés, con cascos muy elegantes, rápidos, muy bien construidos y acabados con un mimo artesanal. En 1982, un Swan 51 fue el casco 1.000 del astillero y el Swan 46, presentado en 1983 es hasta la fecha el modelo más exitoso de la marca, con 109 unidades en el agua (la última entregada en 1997).

  Tras estos años de franca expansión vinieron unos duros años noventa, que empezaron con una caída de ventas generalizada en la primera mitad de esta década. Las finanzas de Swan no aguantaron el envite y en 1998, el industrial italiano Leonardo Ferragamo y un grupo de inversores se hicieron con la propiedad del astillero para reposicionarlo como referencia de la vela internacional.


How the Swans Were Born
by Pekka Koskenkyla
Founder of Nautor's 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-law's 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 o'clock 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 wife's 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 36's. 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 America's 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




 Planos:

 


GENERAL DIMENSION
Loa:
35.79 ft
10.91 m
Lwl:
25.94 ft
7.77 m
Beam:
9.65 ft
2.94 m
Draft:
6.2 ft
1.9 m
Ballast:
7900 lbs
3600 kg
Displacement:
15400 lbs
7000 kg
Antifouled area:
344 ft²
32 m²

ON BOARD SYSTEMS
Fuel:
13.2 gal(US)
50 l
Fresh water:
44.9 gal(US)
170 l
Service power:
12 v

Engine:
Volvo Penta MD2
15 hp at 2300 rpm

SAIL PLAN
RORC


I:
43.04 ft
13.21 m
J:
14.04 ft
4.28 m
P:
38.04 ft
11.59 m
E:
12.04 ft
3.67 m
Fore triangle:
301 ft²
28 m²
Main:
229 ft²
21.3 m²
Genoa 150%:
452 ft²
42 m²
Spinnaker:
1088 ft²
101 m²
IOR


I:
43.2 ft
13.17 m
J:
13.7 ft
4.18 m
P:
38 ft
11.58 m
E:
13.05 ft
3.98 m