49'9' Sardine trawler

[calhoon]

I want to make a 1/8 model of a 1946 Irish design drawn up by James Stafford
I remember seeing this type of vessel as a kid in England and always loved the lines. Large hull with a very small pilot house set far aft. The motor was forward of center to operate the winch with a long prop shaft and a center hold.
I managed to get copies of everything except the offsets. I would like to redraw it in autocad and scale down. I just tryed to upload one of the prints; however it exceeds what is allowed in terms of file size. If anyone has any Ideas I would appreciate them. allready tried the museums over there. The closest thing I have seen in Wooden boat was "GRAYLING" which is a bigger craft. I will gladly send you the prints I have if you give me an e mail to send them to.
Thanks
Colin

[Wiley Baggins]

I want to make a 1/8 model of a 1946 Irish design drawn up by James Stafford
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I would like to redraw it in autocad and scale down.

You should be able to get a copy/blueprint shop to scale the drawings you have for a hard copy via the photocopying process. The cost might be a bit high for the profile at just over six feet, but the body plan should be very reasonable. You could use the sections as molds.

The same shop may be able to scan your originals into a format that can be imported into Autocad. The alternative, which might be a chore with small drawings, would be to do a take-off from what you have and enter that into Autocad (I assume you can enter a "table" of comma separated values, or the like).

[calhoon]

I can do the same thing using Autocads Raster function. The prints are hand drawn reproductions of the originals. Just doing some basic checks to see if the drawings are symetrical tells me that they can't be scaled. The other thing is that if the offset list is out there I can send it off to Mystic as a complete set for their records. This was such a common boat in it's day that they must be out there.
When you look at the east coast Sardine carriers like GRAYLING there can be no doubt that they are a continuation of the design. They started out as sail powered 30 footers with names like ZULU and FIFIE. The motors came later.
Cheers
Colin

[Wiley Baggins]

I can do the same thing using Autocads Raster function. The prints are hand drawn reproductions of the originals. Just doing some basic checks to see if the drawings are symetrical tells me that they can't be scaled. The other thing is that if the offset list is out there I can send it off to Mystic as a complete set for their records. This was such a common boat in it's day that they must be out there...


I'm not familiar with Autocad. Is using the Raster function not desireable (too onerous)?

I'm not sure what you mean by the issue of symmetry making scaling a non-starter. Are the drawings unfair?

Many older boats have been built without offsets (although that might be an exception for a boat approaching 50' in the era you're talking about). This might be your chance to contribute to Mystic if you can fair the lines and develop offsets from them.

[calhoon]

Raster simply allows you to paste the paper drawing in modeling space. You can scale it to full size and then trace the existing lines. I can imagine that the original prints were well drawn, however the set I have are copies drawn in 1994. When I
tried to do the above it didn't jive because when I did some basic dimention checks I got various sizes (even where there were existing diamentions) to the tune of 4 to 6 inches. I am sure the prints came with offset tables and I am not going to second guess Mr Staffords work. Guess I will keep looking
Colin

[John Meachen]

There was a very useful post a few weeks ago about importing a scanned image into Freeship and manipulating a "new" hull until the lines coincided.At which point a 3D dxf could be exported.A diligent search ought to reveal the method.

[Wiley Baggins]

I am sure the prints came with offset tables and I am not going to second guess Mr Staffords work. Guess I will keep looking
Colin

Good luck with your search!

[calhoon]

I have learnt that this vessel was a BIM 50. It was called a Herring Drifter.
There was a book writen about them. I am trying to reach the author as to the location of the prints.

[Clan Gordon]

Hi Calhoon

I am not exactly sure what info you do have and what you are are wanting.

If it is the lines plan for the BIM 50 I cannot help - but the author of the book you refer should be a good starting point. Because the BIM 50 footers were a national project built in several different yards, there would have been lines plans and offsets.

If you just want the lines plan of a typical MFV of that era, there will be more around. The Irish Bord Iascagh Mara (BIM) 50 footers were something halfway between a Scottish ring net boat of that era and a deeper draughted East Coast Scottish seiner/drifter of that era. Lines of some of these boats are available (no idea how accurate you want your lines).

I reckon if you tracked down the recent book you will also have come across the following ;

http://www.sol.co.uk/i/iangwhittaker...n/gallery1.htm
http://www.sol.co.uk/i/iangwhittaker...nn/asaid16.htm
http://www.sol.co.uk/i/iangwhittaker...nn/asiad17.htm
http://www.sol.co.uk/i/iangwhittaker...nn/asiad18.htm

[2MeterTroll]

pretty girl she is.

[2MeterTroll]

BHOFM thanks for the link :)

I spent so much time on work boats when i see them the physical memory kicks in. I feel the engine throb in my lower back and smell the perfume of diesel, strong coffee, fish and tar. and my arms and hands start to tingle. Was a happy happy time for me. soon i will have my own deck to tread. my boat and no CG telling me i cant.

[2MeterTroll]

I have a couple sweaters the I have had for twenty years when they get wet they have that same "Air" about them :) . Funny enough folks love those old sweaters so much they will use them as pillows.