Timbercoast 22 build in Canada

Discussion in 'Boat Design' started by Jimmyb116, Oct 13, 2013.

  1. Jimmyb116
    Joined: Sep 2013
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    Location: Victoria

    Jimmyb116 Junior Member

    So I thought I would start this thread instead of hijacking the one that is already on here from another member.
    I have had the plans for a few weeks, and built a 1:8 scale model to make sure I like the desighn and understand the plans completely.
    I have decided it meets all the requirements we have and is within our budget and skill level so time to get started.
    I will not go into our raw material choices i.e. plywood type etc as I don't want to stir up the usual debate on what is best verses cost effective etc. I will say we will use the best possible where it needs it, ie the hull will get sheathed in the best possible marine ply, but other less structural areas will get less expensive options.
    The motor is the first issue the plans call for a 30hp Nanni N3.30 a new engin would be great but not in the budget! So the plans say 10-30 hp and I need to find a used power plant. There seem to be lots of 10-20 hp used from sail boats but not much 20-30 so I am looking for suggestions anyone?
     
  2. michael pierzga
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    Location: spain

    michael pierzga Senior Member

    Locally when the 30 ft charterboats run aground and sink they haul them out at the shipyard, chain saw the boat up and sell the motor , keel.....as scrap metal. Its not worth cleaning up the perfectly good diesel engine gearbox because there is no market for used engines.

    You need to advertise that you need one. Masts are the same...i see several each year get sawn up for scrap metal
     
  3. Tad
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    Tad Boat Designer

  4. Jimmyb116
    Joined: Sep 2013
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    Location: Victoria

    Jimmyb116 Junior Member

    [​IMG]Proof you can build a boat with just a bandsaw
     
  5. BarboatBilly
    Joined: Oct 2013
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    Location: Bellingham, WA

    BarboatBilly New Member

    Great looking model JimmyB. Are the lines of this model stretched or is that the stock version?
    We see a number of used engines on the Bellingham and Seattle CL pages also. This one has been catching my eye: http://bellingham.craigslist.org/boa/4101336568.html
    Let me know if I can be of more help to you on this side of the fence. Thanks for posting your project.
     
  6. Jimmyb116
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    Jimmyb116 Junior Member

    its stock 1:8 scale, I asked Tad about increasing it 10% but its not as simple as just increasing all dimensions by 10%. Also it works with standard size material at its current size but not so if you grow it to 24' so I'm sticking to the original design.
    8 months ago when I started looking for the design I wanted used small diesel engines were all over the place at cheap prices, now I want one nothing so I may have to venture across the boarder. keep your eyes open for me thanks.
     
  7. BarboatBilly
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    BarboatBilly New Member

    The model looks elegant even at 1:8 Jimmy. Glad to hear you're sticking to the stock design. Didn't know you were considering increasing all dimensions by 10%. Modifications are always more problematic than they initially appear. Thanks for your valuable input Tad.
     
  8. Jimmyb116
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    Location: Victoria

    Jimmyb116 Junior Member

    I did e-mail Tad once, and he explained that you cant just stretch both length and width the same amount, he did quote me a price on scaling up the boat to 24" but it just doesn't seem to be worth while.
    Now with a scale model (and for those with small kids) a poly pocket that is almost perfect 1:8 scale person it looks to be the perfect size for my wife and I.
     
  9. Jimmyb116
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    Location: Victoria

    Jimmyb116 Junior Member

    Found a nice little Volvo 30hp diesel gear and all good runner for $600.00 got to love Used Victoria,20 min from my house and it turned out I new the guy from when I was a kid.
     
  10. Milehog
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    Milehog Clever Quip

    Subscribed.
     
  11. Jimmyb116
    Joined: Sep 2013
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    Location: Victoria

    Jimmyb116 Junior Member

    Ok so some help please, the plans call for a Nanni 29 hp with a 3:1 gear and a 17" x 13" pitch 3 blade RH prop.
    As I am cheap and have a family house etc I have to use a old used volvo penta 29 hp with a 2.37 gear that I got cheap. Now if the internet is correct this is a LH rotation so I need a LH prop but what size and pitch? Any ideas.
     
  12. gonzo
    Joined: Aug 2002
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    Location: Milwaukee, WI

    gonzo Senior Member

    Volvo Penta gears with cone clutch should be able to run either way with no problem. Do you know what model it is?
     
  13. Jimmyb116
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    Location: Victoria

    Jimmyb116 Junior Member

    Yes it's an MS2B bolted to a Volvo Penta model 2003
     

  14. Tad
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    Tad Boat Designer

    I think that engine has a max RPM of 3200? Prop should be roughly 16" by 9-10". Depending on what you can find (assuming you are looking at a used prop) I would try up to 18" by 10-12" and just be careful not to run over 2600RPM or so(over-proped). Look for an older style prop with narrower blades (low DAR). Depending on final weight the boat requires less than 10HP to get 6+ knots. My thinking is that you will slip along mostly at a high idle, when big diameter turning slow is most efficient.
     
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