help with fiberglass wing on fishing kayak

Discussion in 'Stability' started by Itchy One, Sep 3, 2020.

  1. Itchy One
    Joined: Sep 2020
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    Location: calif.

    Itchy One Junior Member

    converting old swede form sit-in 13' 26" beam fiberglass to fishing kayak. 8'6" wing with 4' rocket type fiberglass pontoons. stuck on how to make a Triak type wing. boat will be paddled and minn kota trolling motor 210 lb. fisherman. Remade combing expanded for my 61 year old knees, added Wilderness systems rudder, battery box made fiberglass brackets foe seat supports and wiring.
    So far I'm using 1/4 marine ply for base of wing thinking of maybe 2 struts and 2" urathane insulation board for the shape to fiberglass. wing and pontoons would be removable for transport. realy stuck due to covide-19 and not much is available. New to site, not sure how to upload pics of progress.
    Profile.JPG
     
  2. upchurchmr
    Joined: Feb 2011
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    Location: Ft. Worth, Tx, USA

    upchurchmr Senior Member

    Is this thing going to sink by the stern with all the extra weight in the back?

    Nice swoopy outriggers but what will the swoop do for the boat?

    Why so wide?

    You ought to move the battery box forward (along with the cockpit) and then make straight outriggers as far fwd as you can.

    What do you mean by "rocket" pontoons?

    Where does the Minikota go?
     
  3. Itchy One
    Joined: Sep 2020
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    Location: calif.

    Itchy One Junior Member

    the extra weight will be carried with the pontoons, they will be 6.5 oz. fiberglassed over shc 80 6" pvc pipe 6 layers hand laid, just like making a class 3 rocket. The swoop is to make room for paddling. having a lead acid battery between my legs I don't like, the boat is 9.5" at the tallest point which is in the back. battery and motor will be about 140 lbs. I think. the fiberglass pontoons will be hallow and 4' long, maybe 2 lbs. apiece . I hope to overcome the weight dist. with them. So brackets for controls and wires-seat back formed-6in pipe mold outriggers.JPG far the boat only as you see it is 38 lbs.The trolling motor mounts between the combing (cockpit) and the wing, along with 2 flush mount rod holders. Been trying to get all those since May. Open heart surgery and pacemaker, along with Covid is slowing progress. But I need to stay busy.
    This kayak paddled extreamly easy, before. I don't want to spend fishing time wrestilng a paddle, if I could I would remote the stearing and power, but would need more power, lithium is way out of the question. The boss of 48 years says so.
     
  4. BlueBell
    Joined: May 2017
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    Location: Victoria BC Canada

    BlueBell Ahhhhh...

    Itchy One,

    Welcome to the Forum.

    Have you priced lithium accurately?
    Because at twice the power to weight,
    and huge depth of discharge (DOD),
    you may not find lithium that much more expensive.
    And when you factor in the number of cycles they tolerate,
    they can end up being very comparable in price to lead/acid.
    But, you need a battery management system.

    Tell us more about what you're proposing.
    Do you have any drawings or sketches?

    Allow him to paddle without hitting the crossbar.
    So he can use smaller pontoons perhaps. Think lever arm/righting moment.
    He said "rocket type" pontoons. Perhaps bullet shaped.
     
  5. Mr Efficiency
    Joined: Oct 2010
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    Mr Efficiency Senior Member

    Seeing this is a fishing platform, I can see issues with line getting tangled around the pontoons, according to Murphy's Law, this will only ever happen when a trophy fish unlike any you have previously caught, takes another run as you get it close to the boat. I know that whenever I was fishing at anchor, and hooked into an unusually solid fish, the anchor line was taken aboard, as if the fish takes a run around it, it won't be coming aboard.
     
  6. Itchy One
    Joined: Sep 2020
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    Location: calif.

    Itchy One Junior Member

    the idea for the width and Rocket
    The width is because where I live resivors are within range, My Jon boat was been flipped 1 time swamped many times by wake boarders with no manners or self restraint. The outriggers or pontoons will be made kinda like you would lay up a class 3 rocket body, with nose cones at both ends, a trolling motor no mater the size seems to be in the 5 mph range because of the pitch. The cones would hahe to be shapes, Probly foam ins. fronts eo enter the water rear to exit with little wake distortion. Rocket refers to rocket body building, although I have no manderal that size. I think release "PVA" and 2 layers mylar over PVC pipe, #6" long might do. I'm an old carpenter in and out of the tune up shop, but with a bow rope I couls stand up to fish pretty good. I like fishing from a small quiet boat. LI battery be a couple 2-3 hours fishing time, would need a few to transport the boat very far, and get a day fishing in Cost vs. benifit I'll still have to paddle home. Li's are a nice idea, but not cost effective on a boat at 5 mph. The wing design Yes is for paddling.
     
  7. Itchy One
    Joined: Sep 2020
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    Location: calif.

    Itchy One Junior Member

    I'll be patient enough to anchor when I die the 6th time (maybe) for now I'll stick with 7 ft.+ rods. ya half to hook it to fight it.
    My sticking point is how to build 1st light weight, 2nd strong into this wing. I can't get any core material around here, shipping a 4x8 across the US is out.
     
  8. Mr Efficiency
    Joined: Oct 2010
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    Mr Efficiency Senior Member

    I've done enough fishing with big and difficult to land fish, and if you give them a chance, they will do you, you don't leave any kind of drive leg or obstruction in the water, when playing them, and one more than one occasion I have held the tip of the rod well underwater if the fish took a run under the boat, so the line didn't rub on the underside of the boat, only slight abrasion loses you a lot of breaking strain. And I am not a "sports" fisherman, using light line, they are hard enough to catch on heavier line. Perish the thought a nice fish leaps from the water and makes a loop around your outriggers.
     
  9. Itchy One
    Joined: Sep 2020
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    Location: calif.

    Itchy One Junior Member

    I used to live in N.C. I got spoiled bass fishing small farm ponds. So far in 17 years my opinion Ca. has deer the size of dogs, and fish the size of minnows, poor management. I agree anything between the water and angler is an obstical. I don't see anything else even a bass boat with it's front and rear trolling motors and out board as any better. Standing I can work around the pontoons, They won't fail like to plastic stuff I see on you tube. Not getting dunked is a trade off. We have at least 5 bodies of water for 2 ranger boats in a tourist area. every year more non-boaters are drinking and driving on the water.
     
    Last edited: Sep 3, 2020
  10. Mr Efficiency
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    Mr Efficiency Senior Member

    If it makes for a safer, more comfortable platform, at the expense of "fishability", I am all for it, it might even be advantageous for making it difficult for inquisitive sharks to upset it, but the .45 might help there too !
     
  11. Itchy One
    Joined: Sep 2020
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    Location: calif.

    Itchy One Junior Member

    I'd be happy if the land sharks just had manners. Any ideas on how to make this wing shape sturdy?
     
  12. Mr Efficiency
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    Mr Efficiency Senior Member

    You really need to make a careful study of the weights and buoyancy of whatever you add, it could be the case that when running with even small waves, the bow just "submarines", from the new buoyancy aft. I would say a foam sandwich construct would be the best plan, for lightness and strength. I'd also say, make the height of your outrigger floats adjustable, so you can experiment with the degree of immersion, to see what works best.
     
  13. Blueknarr
    Joined: Aug 2017
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    Blueknarr Senior Member

    My two cents worth

    Quarter ply is good enough.
    Might add a narrow strip along leading edge
    I'm leery of it hanging in the middle. If it is two pieces then I would increase the overlap of that central plate.

    Love the swooping curves
     
  14. Mr Efficiency
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    Mr Efficiency Senior Member

    The curves are fabulous, but whether that translates into results, who knows.
     

  15. Itchy One
    Joined: Sep 2020
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    Location: calif.

    Itchy One Junior Member

    I'm a bit concerned about the nose pushing under, that's why not much will be up front. as far as the out riggers I figure to start with 10" SS allthread and work down. They will be bolted straight through the wing. Some times I get 2.5' wakes and higher, great eh,
     
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