river boat ( adventure? )

Discussion in 'Boat Design' started by Liighthead, Jul 18, 2012.

  1. Liighthead
    Joined: Jul 2012
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    Liighthead Junior Member

    very tempted to just buy something like 8ft punt * jon boat *
    they're about $200 - $300 for a good one proably less if look around, seen one the other day for $250 with a trailer

    and then build a canoe/small 1sheet boat


    this is a 1/10th scale model of a 1 sheet boat haha with 1/10th scale me in it ( head/arms are lil off though itll do )
    [​IMG]

    boat is http://koti.kapsi.fi/hvartial/ossauray/auray_u.htm


    was thinking either that or slightly bigger http://koti.kapsi.fi/hvartial/dinghy3/ekstock.htm
     
  2. Liighthead
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    Liighthead Junior Member

    what you guys think, this mini ekstock but 800mm wide instead of 1200?
    alot easyer to row with 1 paddle

    [​IMG]
    same size everything elese, just skinnier ?
     
  3. peabody
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    peabody Junior Member

    im thinking a chugger.....
     
  4. Liighthead
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    Liighthead Junior Member

    Only time will tell :)
    Chugger would be nice
     
  5. Liighthead
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    Liighthead Junior Member

    Haha a steam powered chugger?
    Sounds like a good project :)
     
  6. peabody
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    peabody Junior Member

    yes steam would be neat.
    better yet ..one of those old tickedy tick sleepboot motors...( small dutch tugboats )
     
  7. tunnels

    tunnels Previous Member

    the thing is

    how many 6 packs will it hold ?? and wheres the girl friend going to sit ?? :mad:
     
  8. Liighthead
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    Liighthead Junior Member

    Again, this will be a little project boat,
    I have a fishing boat, don't need another decent sized one ATM,

    Theirs always room for a 6 pack ( or so )

    Would be nice one of those tugboats, or could make something like a old Aussie paddle steamer ? Haha
     
  9. peabody
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    peabody Junior Member


    alway have the girlfriend sitting on your lap... big cooler full of beer for a foot stool....:D
     
  10. secondmouse1990
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    secondmouse1990 New Member

    If you want to go on an adventure that is more than a day long I would recommend something very big. For carrying heavy loads efficiently at low speeds in protected water there are two things that jump out at me. If you are going alone an atchafalaya style poling skiff might make sense. If you want something that has a chance of carrying two without a breakup, or something to use a gas motor on (electric will not give you the range you need) than an Ozark style river jon may be a good choice.

    The Ozark jons are a little over 20 feet long, the beam is about five feet and the bottom is four feet, and they have substantial aft rocker. The rocker is going to be important at low speeds, it is not only far easier to move at low speed than a planing hull but for close quarters maneuvering it is a lot easier because you are not forcing a boxy transom sideways through the water. The huge jon boats are hefty but are easier to pole than any modern flats boat of similar weight and likewise will go a lot farther with a trolling motor.

    Among rockered hulls the big ozark jons are special because of the profile of the bottom. They have a flat midsection, a nearly straight but not flat aft run, and a wide transom. There are two interesting results. First they are a lot less sensitive to weight distribution than something with an even curve to the bottom like a dory, second they get a lot of hydrodynamic lift from the midsection while the low curvature of the aft section reduces the water-on-a-spoon effect (formally the Coanda effect) sending water up and the transom down. As such they can go a lot faster than hull speed without any fuss and with startling efficiency despite having from five to seven inches aft rocker. A very poorly trimmed (way to sternheavy loading) Playcraft 2149 river skiff made 24 mph with 25 hp. Realistic usage under heavy loads has cruising speeds in the low teens with 15 to 20 hp.
    Slow down below hull speed with a four stroke and the gas can will last till the end of days while you are still going faster than a trolling motor or any sustainable sort of rowing.
     
  11. Liighthead
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    Liighthead Junior Member

    Mmmm I agree, but how much fuel would it take for about 800kms of river?

    For this adventure was leaning towards a canoe, because their isn't really a rush to be anywhere, and carting enough fuel would get heavy?

    Though worked out would be about 2l per hour x 6 hours
    But if it takes me a month ( guess ) would be like 360 liters of fuel

    At $1.40 per L , that's like $504 just on fuel? With a like 5hp motor
     
  12. liki
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    liki Senior Member

    WoodenBoat had a story about a long river trip with a freight canoe, 21 or 22ft long and powered by outboard. It was published about 2 years ago, I think. You might want to look that out and read it for starters.
     
  13. Liighthead
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    Liighthead Junior Member

    I'll have a look around when I get a chance :)
    I wouldn't mind something a bit bigger, but again fuel might become a problem.
    And some parts of the river could be shallow or rocky sections could become hard to drag a 15ft boat over parts? :(
     
  14. Liighthead
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    Liighthead Junior Member

    Basicly a canoe, seams to be the best option
    A small ish freight canoe could work,

    Was thinking a About 10 to 15 ft freight canoe?
    The idea behind the electric motor is it won't always be on,
    Will be paddling
    But my pop has a electric trolling motor on his 14ft Jon boat as well as a 15hp petrol engine
    Can get like 8 hours ( give or take ) till Battrey drains, at about half throttle
    Which is like walking pace depending on river conditions.
    But he charges a 2nd Battrey back at camp, so by time first one goes flat 2nd one is ready to go, anyway
    Point is 2 deep cycle batteries, charging one, one connected with a small solar panel
    Won't be able to use it 24/7 but will give it a bit of push giving me a rest for half a hour todo some fishing or have lunch before paddling again lol

    Thoughts? Thinking bout 11 or 12 ft freight canoe, for one person and small amount of gear.

    Or a skiff could work? In a freight canoe would be using 2 paddles instead of a normal double side kayak/canoe paddle?
    So be more rowing :) lol

    Also been kayaking a bit here n their on weekends, and made up a small sail that folds away
    On windy days it helps a lot when ur backs to the wind lol, proably put something like that in what ever canoe/boat I build
     

  15. shantyboat
    Joined: May 2013
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    shantyboat Junior Member

    Just do it

    [​IMG]

    I always get a bit cranky when someone "floats" a dream and others pop in and say it can't be done.

    http://shantyboatliving.com/2011/micro-shantyboat-project-finally/

    http://shantyboatliving.com/2012/video-micro-shantyboat-sloughs/

    Is it too short? Depends on what you are trying to achieve. Yes, it is a bit tender, but for protected waters, no problem... and that river you show is protected.

    http://shantyboatliving.com/2011/microshanty-time-water/

    http://shantyboatliving.com/2012/harmonica-dockbox/

    http://www.duckworksmagazine.com/09/designs/dockbox/index.htm
     
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