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  1. #16
    Join Date
    Jul 2005
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    'Delaide, Australia
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    Default

    Quote Originally Posted by Don Nethercott
    I admit that the piccy you have posted is magnificient.

    I found reference to some plans on the web, but they don't mention weight or building materials.

    http://homepages.paradise.net.nz/garyd/plans.html

    http://www.mit.edu/people/robot/lepalepa/index.html

    Must admit I am still impressed with your 12 LB canoe - wonder if one of the canoes in the links above could be built in ply.

    Thanks for the time you are spending on this.

    Don
    It is time well spent Don.

    I had a look at those sites. They are both nice boats well suited to their traditional purpose, but they don't suit your purposes...

    1/ They have too much surface area - look at the pics compared to the minimalism of the OC1s - so will weigh heaps. I reckon about 140lbs for the whole blancmange. I reckon a shorter version of the OC1 could get down around the 25 to 35lb mark in balsa strip - just no comparison.

    2/ They really are either sailing boats or derived for two or three muscular locals (in their indigenous form) to paddle out some distance and carry a decent load back - so will be really cumbersome for one person to paddle.

    3/ their height above the water will mean they blow around badly when the wind gets up - so then the locals will hoist a sail - but as a pure paddling boat it just doesn't make sense.

    Also "beautiful" sells - so I tend to maintain it as a priority )

    Best Regards

    Michael

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  3. #17
    Join Date
    Jul 2005
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    'Delaide, Australia
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    Default

    First Draft of the OC1 main hull for cedar or balsa strip.

    It has been biased towards lighter paddlers up to around 145lbs.

    It has a similar volume distribution to the longer boats but I have chopped off the stern to get rid of about 2 1/2 feet and then squeezed a little shorter. The hullform has also been biased a little toward a tad more stability

    Best Regards
    Michael Storer
    Last edited by Boatmik; 21st July 2008 at 08:24 PM.

  4. #18
    Join Date
    Mar 2002
    Location
    Brushgrove, NSW, Australia
    Age
    77
    Posts
    261

    Default Outrigger

    Thanks for the comments on the outriggers in the links. makes sense what you said.

    The first draft looks good. Will be interested in how it turns out in the end.

    I reread the whole article on your balsa canoe - and the comments re being easily dinted and holed make balsa a less attractive option.

    Don

  5. #19
    Join Date
    Jul 2005
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    'Delaide, Australia
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    65
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    Default

    Hi Don,

    Light boats often require careful handling - whether it is a foam sandwich racing dinghy or one of the other OC1s - made of carbon fibre. Or even a larger cedar strip racing dinghy - the bulk (width and beam) starts to make them much harder to move around.

    The factor that carbon or balsa structures have in their favour is that they are so light - makes it a lot easier to move them around without knocking and they don't extert a lot of force if they do knock into something.

    Remember too that I used the Balsa Canoe over a 5 year period and then was able to sell it for more money than I've ever made on any of my boats because it was in good shape.

    And at least it is easy to repair - unlike the carbon boats that are a similar weight and similarly fragile - but have to be taken to a factory to be repaired - and a repair to a $6000 carbon boat will be in proportion to its cost!

    Best Regards
    MIK
    Last edited by Boatmik; 21st July 2008 at 08:21 PM.

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