Belco

The Livro Primeiro de Arquitectura Naval (First Book of Naval Architecture) has been dated between 1608 and 1615, and is generally considered to have been written around 1600 by João Baptista Lavanha, the Chief Engineer and Chief Cosmographer of the kingdom of Portugal at that time. It is the theoretical work of a scholar, and not a practical text of a shipwright. It deals only with one type of vessel: the four decked nau for the India Route. It is clearly more modern than Oliveira’s Liuro da Fabrica das Naus, basing the construction of hulls on paper drawings. Nevertheless, Lavanha calls for the need to pre-design a central portion of the hull, although only for five frames forward and abaft the midship section. The importance of this treatise lies in its accurate description of construction techniques, and in its detailed illustrations. It is incomplete, ending abruptly in the beginning of a description of the drawing of plans.
 
Both Lavanha's and Oliveira's works are availble from the Academia de Marinha, the cultural agency of the Portuguese Navy under the Chief of Naval Staff. Its purpose is to promote and to publish artistic, literary, historical, and scientific studies relating to the sea and maritime activities. For those that are able to read Portuguese, there are a number of other items also posted. I thought these two early manuscripts may be of interest. While Lavanha has been translated, Oliveira has not. Some sections of Oliveira have been transcribed while others are facsimile of the original handwritten treatise.
 
Lavanha, J.B. (1610) ‘Livro Primeiro da Architectura Naval (First Book of Naval Architecture)’. Translated by R. A. Barker. Available at: https://academia.marinha.pt/pt/edicoes/Paginas/Reedições.aspx (Published by the Academia de Marinha, Lisbon, 1996, as a facsimile, transcript and translation; and including the 1965 commentary by Dr João da Gama Pimentel Barata, revised and updated from his notes on a draft translation in 1986; together with further annotation by the translator). (Accessed: 2 November 2022).  
Oliveira, F. (1580) ‘Livro da Fabrica das Naus’. Available at: https://academia.marinha.pt/pt/edicoes/Paginas/Reedições.aspx  (Published by the Academia de Marinha, Lisbon, 1991, as a facsimile, partial transcript). (Accessed: 2 November 2022). Original images available at https://purl.pt/6744  where a 719MB PDF may also be downloaded.
 
Barkers on-line translation of Lavanha (same as in the book) can be found on his website here (he has several very nice items there, including what appears to be a partial translation of Oliveira here....)
 
   
 
 

Good evening all, it’s been awhile since I’ve made a post. Work continues on the hand made sails! The images below are my final iteration, with still a few more things to add, but getting close. 
 
All of these sails have scale appropriate panels, sail reinforcements as per Lee’s book, and I have the corner reef points completed. Still have the edge reef points to do and some finishing touches.
 

Hello everyone!
 
I thought I'd take the plunge and start a build log for my Terror model. 
This is my first model ship project. I've had a bit of experience modelling before, but only ever in plastic kits here and there over the years, and so far it's been great.....if slightly frustrating at times! (no doubt you can all relate)
 
Unfortunately I've had to start this log part way through the build as I only recently discovered this site - in hindsight I wish I'd taken far more photos than I have!
 
Quite early on I found myself scratching my head with a lot of questions and, after a bit of scrambling in the dark, came across this site which has so far been invaluable. Looking through some of the build logs on here its amazing what you can learn, be it from a novice or a more experienced builder. 
 
Although I am quite familiar with the story of the Franklin expedition and the two ships involved, building this model has given a really unique sense of perspective and a totally new angle with which to approach the story from which has been great! 
 
Hopefully you enjoy having a look at my efforts so far. I'd say the model is definitely an 'homage' to the true design of the ship, I've taken a few liberties here and there, some for purely aesthetic preferences (I can hear some of you screaming out in horror haha) and others to cover little sins and mishaps along the way.
 
Even so if there's anything you can see which you think I could do better in future then please say! I'll certainly be having a lot of questions for people along the way! haha
 
.........and apologies for the naff photo's, if its one thing I'm most definitely not it's a photographer!
 
Cheers!

Last photos! Thank you all for your kind words! This was one of my first scratchbuilt ships, and I learned a lot while making it. I am very honored that a museum accept it. 😁

Modified code again to replace the rectangular stroke with parabolic entry and exit on the power stroke with flat central portion. Now that I've seen rectangular, trapezoidal, and parabolic strokes I conclude that the stroke shape is not important; the vertical movement is so much less than the sweep movement that the eye cannot discern the difference.
 
Since I now had the parabola formulas in the program I decided to have some fun with the stroke as shown in this video.
 
 
I'm very happy with my code; it has been robust in the face of frequent changes and obviously is not a wobbly house of cards which is what I was afraid I would end up with. Perhaps "C" itself forces you to write in a structured way.....
 
I will now move on to a hull design and build (finally, I hear people saying......).  One last thing to show - I built a water tank to see the oars row in water. Not for long as they are glued with yellow carpenter's glue and are not varnished or painted as yet. I'll need to sand the corners off the blades before applying finish. Anyway here is a brief video. You can see where my garbage bag liner sprung a leak 😆. No danger of the mechanism flying off to the side..😄..I must say it's hard to imagine this having the power to move what will be a fairly heavy hull. I hope to God after all this effort, and effort to come, that it does.🤞✌️
 
 
 

I use a cheap soldering iron (from a German supermarket chain) with an aluminum piece that used to be the center of a rubber roller, I have two of these pieces each a different diameter and it works very well, it rarely burns the wood.
 

It's not sophisticated, but it does the job.
 
Belco

The new Artesania Latina has made available to modelers the instructions for some of its old discontinued boats, among them is the Santa Maria, you can download plans and instructions at this link:
 
https://artesanialatina.net/es/instrucciones-antiguas/473-maqueta-de-barco-en-madera-carabela-santa-maria-guia-22411-8421426224115.html
 
Regards
 
Belco

I use a cheap soldering iron (from a German supermarket chain) with an aluminum piece that used to be the center of a rubber roller, I have two of these pieces each a different diameter and it works very well, it rarely burns the wood.
 

It's not sophisticated, but it does the job.
 
Belco

I came up with an idea to use my LEGO for the ropewalk device. It's very simple, I build it in half an hour. I just made couple ropes with it, and pretty happy. 
 
Overall look

Four identical gears, I'm going to improve it to rotate faster.

The complete "set" - device, weigth and divider )

This type of pins allows quickly fix the rope, so no need to make a knots.

Again quick fix of weight. I added some metal inside.

And the divider.

Short video how it works (there you can see ropewalk v.1.0.0 without the "weight")
 
And the first results
 

I hope you'll find it helpful and probably will advice how I can improve it.

The new Artesania Latina has made available to modelers the instructions for some of its old discontinued boats, among them is the Santa Maria, you can download plans and instructions at this link:
 
https://artesanialatina.net/es/instrucciones-antiguas/473-maqueta-de-barco-en-madera-carabela-santa-maria-guia-22411-8421426224115.html
 
Regards
 
Belco

Sorry for late response, it's been unusually hectic, but thanks Belco!

Hello friends,
I am a retired Otolaryngology Surgeon since 2017 and residing in Bodrum, Turkey. Bodrum locateted in southwest part of Turkey , a worldwide well known holiday resort and I live here for the very best part of the year. January and February are spent in Ankara, the capital, as winter conditions need it.
I am 70 years old, married and have a son of 38 years. 
Although my history of scale modelling dates back to early 80’s , I was able to concentrate on the hobby only for the last 6 or 7 years due to very busy professional life. 
Actually I am not a recent member and a member since 2018. Sorry for the late introduction.
I am adding a photo of mine taken in front of some finished works of mine, taken in Bodrum residence.
I am sorry if there are any  mistakes in my post as English is not my native language.
Best regards to all

Yes, you can find similar models in model airplane stores or Amazon.
Try searching for it by: rc plane covering iron

Regards
 
Belco

Yes, you can find similar models in model airplane stores or Amazon.
Try searching for it by: rc plane covering iron

Regards
 
Belco

To prevent having color dust in whole room, I wanted to buy spray booth. But I didnt like anything on the market, so I ve decided to build my own. In this topic I want to share some experience, I gained during this mini-project. 
 
I decided to make it little bit bigger and use it also as workspace, so it is sized to fit medium sized models (1/350 battleship will fit there easily). Other requirment was ability to vent fumes via flexible hose through window. Design of box is nothing special, I only wanted to make it easily transportable, so everything is connected via "locks" for furniture, so it is no problem to disassemble it by loosening few screws.
First I bought some bathroom fans and it was more or less working (filters were catching some color dust), but they simply havent enough power to push it even through 2m of flexible hose. So there was a good lesson. Standard small fans with low wattage (usually 5-10 Watts) are good only for transporting air on very short distance (in case of bathroom fans through wall). To be able to transport it through hose, you also need to check static pressure parameter (Pa) which is fan able to generate. Typical 220v bathroom fan has cca 90m3/hour and it is able to generate 48Pa of pressure. According to some tables, 50Pa should be enough for 2m of pipe, but it was not. In my case hose is not straight and it will never be and there is big lost of efficiency if there are any sharp angles etc. Also filter causes HUGE lost of pressure.
So I ve decided to buy fan really meant for transporting air through pipes. Just size is totally different league and parameters also (55W, 350m3 and 350Pa). I bought two, just in case. Well, I have tendency to slightly overengineer sometimes, but price difference wasnt that big and who wouldn´t want to be sure? And this really works:
 


Because of sheer power, I ve also installed regulator, so I can easily control strength of venting. On one side I put plug hub, because there is never enough of plugs:

 
For lightning I used some LED array for kitchens to not have point lightsource as main light source. I chose model with glass protection of LEDs, so I can easily clean color from it, if needed:

 
All electronic parts including fans are not hardwired, but can be easily removed by disconnecting connectors:

 
Example of furniture "lock":

 
I also made drawer-like cartridge for filters, so I can put inside any filter, even industry level 5cm thick filter for car spraying stations:

 
It is surprisingly not expensive, you only need to buy several square meters at once:

 
 
For workspace I use PVC flooring, it is easily replacable and good for cutting.
 
I am improving this design from time to time, so in case I do something interesting, I will update.

So here is the ship at 99% complete out of the water. These are the last photos I have of her as a full hull display, as she is not here anymore 😅

Tomorow I'll short out the pictures of the near finished model, here a couple more during this stage of the built with me in for scale 

Bench vise was a bit of a challenge at this scale but I am happy with the results. 😁

Tom

This is not a book that is officially on the market. My son and I made it just for fun. 
We hope you like it too.
 
Cut_and_paste_ENG.pdf

Hi Bob

Indeed, that curtain of ropes was used in a certain way to prevent the entry of the attackers' shots, as well as to prevent sparks and particles generated by the cannon's firing from entering causing a fire.
You can see an interesting article about the Great Siege Tunnels on wikipedia.
 
https://en.wikipedia.org/wiki/Great_Siege_Tunnels

Regards
 
Belco

I can assume that currently they have placed the ropes to give the public an idea of how it should be. 
Putting thick and opaque rugs would take away the "charm" of the visit.
 The presence of eyes at the end of each rope should be to give them weight to prevent the usual air in the area from causing the ropes to fly.
 
Belco

I can assume that currently they have placed the ropes to give the public an idea of how it should be. 
Putting thick and opaque rugs would take away the "charm" of the visit.
 The presence of eyes at the end of each rope should be to give them weight to prevent the usual air in the area from causing the ropes to fly.
 
Belco

Hi Bob

Indeed, that curtain of ropes was used in a certain way to prevent the entry of the attackers' shots, as well as to prevent sparks and particles generated by the cannon's firing from entering causing a fire.
You can see an interesting article about the Great Siege Tunnels on wikipedia.
 
https://en.wikipedia.org/wiki/Great_Siege_Tunnels

Regards
 
Belco

Hi Bob

Indeed, that curtain of ropes was used in a certain way to prevent the entry of the attackers' shots, as well as to prevent sparks and particles generated by the cannon's firing from entering causing a fire.
You can see an interesting article about the Great Siege Tunnels on wikipedia.
 
https://en.wikipedia.org/wiki/Great_Siege_Tunnels

Regards
 
Belco

And here's the completed project!