Would this appeal to you....?

Discussion in 'Boat Design' started by lewisboats, Jan 18, 2007.

  1. lewisboats
    Joined: Oct 2002
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    Location: Iowa

    lewisboats Obsessed Member

    Scenario: You pull in with your pickup and travel trailer in to this great camping site by a rather large lake (say 3 mi by 7 mi). It is early evening so you do up supper and take in the sun set then hit the rack because you are tired and you want to get up early. The next morning's crack of dawn sees you heading out to get some kind of swimming thing for breakfast. The best place is at the mouth of a creek about 5 miles away but you are buzzing along at about 20 kts in your 12 footer an get there pretty quick. (OK so where did the boat come from ??? :confused: :confused: :confused: ...I'll get to that later). After an hour or so of fishing you have a nice stringer of edibles and you head back. After breakfast comes a well earned siesta, then some hard core lounging and lunch is served. An hour or so after lunch a case of restless hits and you say to your self..."Self...it is time for a bit of a sail". So...with about 20 minutes of rigging up the boat (where the heck are these boats coming from!!!) its off for a couple of hours peaceful sailing (with a few liquid appetite enhancers along for the ride). Well...seeing as you forgot your hat and your balding pate is this guy's color ...time for a little aloe and supper. Well now...after soothing the troubled brow and appeasing the belly beast you feel a bit guilty and vow to work off a couple hundred of those nasty calories before calling it a night. It is still early evening, so with hat firmly on throbbing scalp you set off for a theraputic row along the shoreline for a couple of miles...(what...another vessel...HOW???)


    Let me tell you about Sybil...(not the movie...but the multiple personalities is right). Sybil is a Two piece boat that comes in three pieces. NO NO NO...please don't shake your head and close this post just yet. Sybil is the result of taking the idea: What if you were to design the forward half of a boat so that it would do pretty good as a sailboat and as a planning motorboat (after all, you aren't gonna use it in big waves and once on plane it is pretty much out of the way). What you are left with is two different forms needed for the after part...a planning form for...um...Planning and a decent displacement form for rowing and sailing. {See where I'm headed here???}

    WHAT if you cut the boat in half (not quite but close...within 3 inches or so) and had a different after end for your chosen mode of propulsion and mood at the time. HOW about if the whole thing pretty much nested together and fit into a shortbed pickup? And WHAT if the whole kit and kaboodle came in at 180lbs or less (probably less)....


    What would you opine?

    Steve

    PS pictures to follow (freeship hull of course) if anyone bites...:D
     
  2. kach22i
    Joined: Feb 2005
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    kach22i Architect

    Sounds cool, but I'm not a true boat guy.

    If you think it's crazy, just remember crazy sometimes sells.

    I offer this as proof.
    http://www.hovery.com/gallery.htm
     
  3. yipster
    Joined: Oct 2002
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    yipster designer

    aint there a halfway stern form for doing all ?
     
  4. kach22i
    Joined: Feb 2005
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    kach22i Architect

  5. Chris Ostlind

    Chris Ostlind Previous Member

    Yikes... I'm Skeeered

    OK, Steve, I'm always open to take a look at convertible boats with split personalities. Women like that are also intriguing. (It's that age-old Madonna/Hooker thing that lives in all men)

    So, show us the goodies.

    Chris
     
  6. flydog
    Joined: Oct 2006
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    flydog Junior Member

    Cool boat!

    My wife is saying: "But where do I sit? Where do I lay out?"

    Flydog
     
  7. lewisboats
    Joined: Oct 2002
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    lewisboats Obsessed Member

    Well I spent a bunch of time putting together a bit of a drawing presentation but I went and boogered it up and saved before I noticed. I have to redo the main hull pictures so hopefully tomorrow I'll be able to post them.

    Steve
     
  8. kach22i
    Joined: Feb 2005
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    kach22i Architect

    Multi-hulls often have netting for this.

    [​IMG]
    [​IMG]

    Or you can just use the hull.
    [​IMG]
     
  9. lewisboats
    Joined: Oct 2002
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    Location: Iowa

    lewisboats Obsessed Member

    THAT was a low blow...but I LIKE IT :D :D :p !
     

  10. lewisboats
    Joined: Oct 2002
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    Location: Iowa

    lewisboats Obsessed Member

    OK...Quick pic to show what the hull(s) would resemble. Still playing with flare and forefoot a bit. Draft is .600 ft or 7.2", disp is 585 lbs for the Row/Sail at shown level draft and disp is 815 lbs for the planning version at shown level draft. Quite a bit I know, especially as the boats shouldn't weigh over 120 lbs per configuration. Raising the draft to 4.5" gives 360 lbs disp for the motor version but only 220 lbs for the Row/sail version. Picking a disp of 400 lbs with motor and fuel for the motor version gives a level draft of 4 3/4" A disp of 310 lbs for the rowing version (without leeboard, rudder, mast, sail and running rigging but with oars) gives a draft of 5 1/4" so figure 5 1/2" for version in sailing trim of about 330-340 lbs.

    Steve
     

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