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flyinwall
02-04-2010, 04:28 AM
i have downloaded and printed this set of plans ( http://www.fao.org/docrep/007/y5649e/y5649e00.htm ) for study but i have noticed that they dont mention anything about mounting the inboard diesel motor or whether you need to strengthen the hull for the motor or anything about the through hull fittings

i like the looks of it as a hull and was wondering if there would be a problem building a wheel house on it (the 7 or 8 meter version) and putting a slightly larger motor than they recommend (to counteract the weight of the wheel house) i was thinking of about 15hp diesel
does anybody know if it would work (i know it would look good for what i want anyway)

PeterSibley
02-04-2010, 05:19 AM
The link isn't working mate , could you post the drawing ? I've got a couple of old FAO drawings here , IIRC one for a 25 foot open fishing launch and one for what looks like a small Qld trawler ,roughly 32 feet OA (forward wheel house ) with a small inboard diesel .

Both built in Cochin , Southern India .Do they sound similar to yours ?

flyinwall
02-04-2010, 05:36 AM
the link works now
can you post a couple of pics of what you have as the trawler sounds interesting
i have a soft spot for trawler style of boats as i used to work on a 60' steel prawn trawler (those were the days)

Dave Wright
02-05-2010, 12:49 PM
You sholid have no problems adding a wheel house to the 7 or 8 meter versions, or a 15 horse diesel (assuming a modest wheel house, not a Mac Mansion). Keep looking around, you may find FAO drawings depicting just what you want on that particular boat.

Here's an example of a diesel inboard and small wheel house on a 30 foot flat bottomed FAO boat:

http://i705.photobucket.com/albums/ww58/Siberian11/FAO30.jpg

mmd
02-05-2010, 01:43 PM
Flyinwall, be wary of your weight distribution. I looked at the drawings and believe that the intent of this boat would have the controls and crew aft of the engine in the open boat. Moving these forward of the engine and adding the weight of the house on such a narrow waterline hull may cause the bow to be heavy. This will seriously affect the speed and seaworthiness of the boat.

PeterSibley
02-05-2010, 03:37 PM
Flyinwall ,my drawings are of older style displacement boats ,quite a different animal

I worked trawlers too ,out of Maloolabah one season ,42 foot timber , Jennifer Ruth .

flyinwall
02-05-2010, 05:16 PM
Flyinwall ,my drawings are of older style displacement boats ,quite a different animal

I worked trawlers too ,out of Maloolabah one season ,42 foot timber , Jennifer Ruth .

i worked for lee's fisheries out of tin can bay and i worked the entire east coast of Qld right up the the torres straights

and can i have a look at the old drawings that you have as i would love to see them

PeterSibley
02-05-2010, 05:42 PM
I only worked trawlers for 10 months or so ,then got off at Weipa when we broke an engine gearbox coupling and parts were going to be 2 months coming .That was my Gulf season !:D

Fun though .

If you PM me your postal address I'll do some photo copies of the drawings ,which one is best ?

25 foot open boat
32 foot trawler
36 foot trawler
42 foot multipurpose fishing boat .
They're all Indian designs ...but look very Queensland ,not sharpies but round bilge carvel .

Dave Wright
02-05-2010, 11:32 PM
Flyinwall, be wary of your weight distribution. I looked at the drawings and believe that the intent of this boat would have the controls and crew aft of the engine in the open boat. Moving these forward of the engine and adding the weight of the house on such a narrow waterline hull may cause the bow to be heavy. This will seriously affect the speed and seaworthiness of the boat.

Correct, one should always be very conscious of weight distribution and stick to very modest houses. It's my understanding (but I could well be wrong) that the Indian / Bangladeshi lifting propulsion system uses an irrigation / agricultural type diesel engine of 5 to 15 HP. The engine is mounted in the aft end of the boat with a short pivoting shaft.

The bottom pivot of the rudder as well as the far outboard end of the shaft are attached to a common "strut." Both shaft and rudder swing up as an assembly for beaching or shallow work. The working crew are typically forward of the engine with the helmsman virtually on top of the engine.

Flyinwall, as I mentioned above, you should investigate the FAO materials a bit more. For example, here's a couple of references on the engine installation and the lifting propulsion system.

Pleasant researching to you


ftp://ftp.fao.org/docrep/fao/field/006/ad531e/ad531e00.pdf


http://www.onefish.org/servlet/CDSServlet?status=ND0xNDI2NDMuMTQ0ODI5JjY9ZW4mMzM9 ZG9jdW1lbnRzJjM3PWluZm8~

Dave Wright
02-05-2010, 11:35 PM
My second reference was truncated by the Woodenboat system. Here it is, hopefully:

http://www.onefish.org/servlet/CDSServlet?status=ND0xNDI2NDMuMTQ0ODI5JjY9ZW4mMzM9 ZG9jdW1lbnRzJjM3PWluZm8~

Dave Wright
02-05-2010, 11:38 PM
So, 105 characters is a bit long for the system?
OK, I can do it this way:

http://tinyurl.com/yhlajod