Homebuilt Personal Watercraft

Discussion in 'Boat Design' started by preventec47, Jul 31, 2016.

  1. upchurchmr
    Joined: Feb 2011
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    Location: Ft. Worth, Tx, USA

    upchurchmr Senior Member

    Incompetence is it's own reward.
    Gas engines have been around for a long time.
    There doesn't have to be an issue.
     
  2. preventec47
    Joined: Jul 2016
    Posts: 22
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    Location: Atlanta, GA

    preventec47 Junior Member

    I would like to take you up on your suggestion and for it to happen
    would be for me to rent a PWC at a local inland lake area. Now what
    happens if I cant find any rough water ? Seriously though.... is what
    I am asking for any different than that PWC guys have been doing for
    forty years ? I did make the connection that a lot of PWC guys
    allow some shock absorbtion by supporting weight on their legs as
    opposed to sitting in a mini speedboat. Maybe I need to get creative
    and think of a straddle seat like a horse saddle or a PWC/motorcycle
    seat setup and put that into the mini speedboat.
     
  3. Dave T
    Joined: Sep 2011
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    Location: Anamosa Iowa and North Buena Vista on the Mississi

    Dave T Senior Member

    A small boat can be a lot of fun and I would suggest that first you give a lot of thought to what you want I guess they call that an SOR. I know of many people who spend a lot of money to buy a PWC only to use it for one summer and then sell it a big loss and then buy a boat. You will probably find that a boat that only one person can ride in will be a lot of fun to start with but unless you have a few other people with the same type of equipment you will probably get tired of it pretty quick. You mentioned not using a trailer I don't believe that would be possible because of the weight but if you can build the boat and figure out how to use the 25 horse motor that should be pretty simple. As far as having FNR you might consider adding an electric trolling motor that you could use when you need reverse and for emergencies in case the main motor fails then you wouldn't need a transmission and if the motor would start at an idle with the prop in the water you wouldn't need a clutch. My boat is a 12' wooden boat that I built without plans from my own design and this is its fifth summer on the Mississippi and for me it's the perfect boat I originally powered it with an 11 horse briggs engine that I mounted on an outboard leg, now I have a 70 horse mercury out board on it. Take a look at my thread (A boat a motor and a trailer) in boat building.
     
  4. Petros
    Joined: Oct 2007
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    Location: Arlington, WA-USA

    Petros Senior Member

    look for the plans you want on the vintage small hydroplanes here:

    http://svensons.com/boat/

    they are rather dated, most were designed to be built with "hardware store" fittings, but they are fun to look through. It might be a reasonable thing to do to up date the design and make a more modern version of them. OTOH, might be much faster and cheaper to buy a used personal water craft.
     
  5. WestVanHan
    Joined: Aug 2009
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    Location: Vancouver

    WestVanHan Not a Senior Member

    As you reasoned,in water that isn't too smooth you take a beating,and it becomes not a lot of fun,really quick. In my area,the seas are very rarely calm however in your area,the lakes and rivers may be very calm much of the time.
    I've taken PWCs to the Bahamas from Florida,in quite rough seas and it was fine.


    If you want to build a boat for fun and to learn things and do it with what you have on hand,IMO that's the best way to go...go for it!

    I looked on Craigslist Atlanta and there's a few small boats around for not a lot of money...this one sparks my fancy for some reason:
    http://atlanta.craigslist.org/nat/boa/5714978644.html

    And people have been known to buy used PWCs with blown engines and swap in other engines,not wanting to go fast. That said there's a bunch on there for $500 to a grand that run and go.
     
  6. Dave T
    Joined: Sep 2011
    Posts: 250
    Likes: 14, Points: 18, Legacy Rep: 158
    Location: Anamosa Iowa and North Buena Vista on the Mississi

    Dave T Senior Member

  7. preventec47
    Joined: Jul 2016
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    Location: Atlanta, GA

    preventec47 Junior Member

     
  8. upchurchmr
    Joined: Feb 2011
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    Location: Ft. Worth, Tx, USA

    upchurchmr Senior Member

    Nice to see you were able to get something out of all the "competing" suggestions.

    Good luck, and keep up the reports, please.
     
  9. preventec47
    Joined: Jul 2016
    Posts: 22
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    Location: Atlanta, GA

    preventec47 Junior Member

    Funny I know but I do not know what "BOAT" really means. Please enlighten.
    I do know that when the wife says she is "fine" .... I know that means she
    is "freaked out, insecure, neurotic and emotional"
     
  10. Mr Efficiency
    Joined: Oct 2010
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    Location: Australia

    Mr Efficiency Senior Member

    Break Out Another Thousand ?
     
  11. PAR
    Joined: Nov 2003
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    Location: Eustis, FL

    PAR Yacht Designer/Builder

    Bring Onboard Another Thousand
     
  12. Petros
    Joined: Oct 2007
    Posts: 2,936
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    Location: Arlington, WA-USA

    Petros Senior Member

    do not even try to explain it. There is no rational reason to own a boat at all. They are nothing but expense, and the maintenance hours to actual use hours are very large.

    Most of us have just given into the irrational impulse and do not question it, and go about it in a way that will not bankrupt us (hopefully). So no need to explain anything to us here. We already know...it is a form of mental illness related to masochism.

    There are just some things best left unsaid...
     
  13. Artificer
    Joined: Sep 2016
    Posts: 1
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    Location: Florida

    Artificer New Member

    To the original poster.

    Pay no heed to the nattering nabobs of negativism.

    The journey is the reward.

    Artificer.
     

  14. Thin water
    Joined: Aug 2005
    Posts: 100
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    Location: Central Florida

    Thin water Senior Member

    I built this a personal watercraft from the swesons plans, but made it in aluminum. It beats you to death in over 6" chop but is a blast at 32 mph with a 15 Yamaha 2 stroke.

    I have a machine shop so making a stuffing box, shaft and any other parts for your project would work for me, but would be very costly for a walk in customer. Scrounging stuff that can be adapted may be a way to make your Kholer motor work. If it were mine I would make a mud motor out of it and mount it on a 12' plywood jon boat.

    [​IMG]
     
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