Does this boat exist?

Discussion in 'Boat Design' started by HowardH, Jul 22, 2018.

  1. HowardH
    Joined: Nov 2010
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    Location: Moses Lake WA

    HowardH Junior Member

    A small skiff type boat. Not a planing hull. A displacement hull that moves efficiently with a small outboard AND has a shallow draft; yet can carry some weight.

    I envision it being used for traveling lakes and rivers while fishing/trolling and possibly hunting. Open for room to move about, lower sides to minimize wind effects and small enough to pull up on the beach and flip over.

    Room for two people.
     
  2. Rurudyne
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    Rurudyne Senior Member

  3. Ike
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    Location: Washington

    Ike Senior Member

  4. SamSam
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    Location: Coastal Georgia

    SamSam Senior Member

  5. Mr Efficiency
    Joined: Oct 2010
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    Mr Efficiency Senior Member

    He specifically says he does not want a planing hull, presumably he wants to row it, sometimes. A flat bottom boat with rocker, such as the bottom just kisses the water at the transom, would do the job.
     
  6. BlueBell
    Joined: May 2017
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    Location: Victoria BC Canada

    BlueBell Ahhhhh...

    HH,

    You'll need to be a little more specific.
    A low deck catamaran might do the trick.
    No need to flip it over on shore.
    You could pitch a tent on it.

    A planing hull can be operated in displacement mode, but not terribly efficiently.
    You'll need a fair bit of length in a cat to keep the draft down, little rocker.
    Still maneuverable with an outboard though.

    So, to answer your question, no, you'll most likely have to make one.
     
  7. HowardH
    Joined: Nov 2010
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    Location: Moses Lake WA

    HowardH Junior Member

    Hmmmm more specific. First priority is it has to run efficiently at slow speed. It must do well at trolling. Typical troll speed of .5 to 1.5 mph. This means track true and have a low enough profile to not be blown around excessively in the wind.

    I would like a shallow draft, say 6" or less when loaded light.

    Light weight enough to drag up the beach etc. So a removable motor, fuel can and battery.

    Open floor to move about. I know this will have to be a smaller boat so open is critical.

    This boat comes closest in my research so far. Candlefish 16 – Devlin Designing Boat Builders https://www.devlinboat.com/wordpress1/2015/11/candlefish-16/
     
  8. Rurudyne
    Joined: Mar 2014
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    Rurudyne Senior Member

    On beachability, are you going to be dealing mainly with rivers/lakes or something rougher? Seabright skiffs, of which Happly Clam is an example, are supposed to be good to go in either. There is also a simpler type, the dory, that may serve. Here's a link: http://www.bookfeeder.com/pdfbook/the-dory-book-john-gardner.pdf (different designs near the end)
     
    Last edited: Jul 23, 2018
  9. messabout
    Joined: Jan 2006
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    Location: Lakeland Fl USA

    messabout Senior Member

    A simple flat bottomed skiff will do the job. It needs to have sufficient rocker on both ends, A reasonably durable 16 footer can weigh as little as 130 pounds, like the one in my back yard. It has been decent but not spectacular under oars. My 28 pound thrust ancient Minn Kota can push it at 4 knots WOT. My 2.3 HP Tohatsu will make it go at about 9+ knots if at WOT. At that speed it is doing a mushy plane. It is a dead simple little boat that is typical of the type. There are many of that type that have been around, and proven useful, for a hundred years or more. It also sails fairly well with a 60 square foot sprit boom rig. This is a little boat that is not the best at anything but it does so many things sufficiently well as to recommend it along with others of its general type.

    It is made with the Stitch and glue method with 9mm Ocumee bottom and 6mm sides. Six ounce epoxy glass on the bottom and chine areas. Draft is less than 6 inches with a load of 400 pounds more or less. Sheer beam 52 inches. it is maybe a bit narrow for those who need lots of beer while fishing.

    Flatties are good little boats that satisfy a variety of wants and needs. Not the best at anything but entirely adequate at their several abilities.
     
  10. Squidly-Diddly
    Joined: Sep 2007
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    Location: SF bay

    Squidly-Diddly Senior Member

    Grumman sport boat - Wikipedia https://en.wikipedia.org/wiki/Grumman_sport_boat

    note that it was originally rated for 1100lbs and up to 25hp, but able to plane (with less than 1100lbs load) on as little as 3.5hp.

    "Except on Alaskan rivers, Sport Boats are uncommon west of the Rockies. The University of Washington Aquatic Recreation Center has a dozen or so heavily used and extensively repaired SportBoats in its rowing fleet...."

    I investigated one for sale. The bottom looked it was used more like a toboggan down wet rocks than an actual boat. Huge deep dents on entire bottom, but only one repaired spot.

    I've also seen them jury rigged for mild sailing.

    $3000 MSRP

    Here are PLANS to make your own wooden version, if you really hate metal boats.
    Robb White, Boatbuilder, Thomasville, Georgia http://www.robbwhite.com/sportboat.html
     
  11. Wavewacker
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    Wavewacker Senior Member

    Might look at the Bolger boats, there are several low powered river cruisers, you might like a Birdwatcher cabin. :)
     
  12. Squidly-Diddly
    Joined: Sep 2007
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    Squidly-Diddly Senior Member

    anything wider than square stern canoe is going to be a planning hull.

    but a SSC meets your requirements to a tee.
     
  13. messabout
    Joined: Jan 2006
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    messabout Senior Member

    No offense here Squidly- D, but I do not understand your post above. ............."anything wider than a square stern canoe is going to be a planing hull". Please clarify because that is a statement that could be misleading to our important newbies.. A Crosby catboat, for example, is a lot wider than a square stern canoe but no way is it a planing boat.

    Width is not the determinant for planing. Load per square foot of wetted surface, Profile shape of the bottom, extent of and manner of power application, and a few more things determine whether the boat can or will plane. really skinny surface can plane under the right circumstances........consider what is going on with a slalom water ski. Snow skis are actually planing but just on a different surface media.
     

  14. Squidly-Diddly
    Joined: Sep 2007
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    Squidly-Diddly Senior Member

    how about "anything wider than a canoe that is not a sailboat and has low windage (not a dory) is going to most likely be a planning hull"

    Most of the designs submitted were for "low power" but were also planning hulls, and he said he wanted efficient displacement. I'm guessing most of those Low Power Planning hulls aren't so efficient if carrying a big load, another requirement.
     
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