Catamaran Hull Squat

Discussion in 'Hydrodynamics and Aerodynamics' started by francotripepi, Feb 28, 2019.

  1. francotripepi
    Joined: Feb 2019
    Posts: 30
    Likes: 1, Points: 8
    Location: Miami

    francotripepi Junior Member

    0E74D7E4-29DF-4C6A-8E6E-6358B4CF78BA.png D07C022B-2774-4A8A-808B-969BE91A0151.png 563956E9-3526-44EC-8D0C-D2FE244F6091.png 2D56FF19-5F50-4404-A248-698E53F8420A.png AAF8E4F5-5D7D-42BD-9155-C8C9B0A05BDB.png 8C033344-FD95-4777-A821-3CDE17AEE142.png



    This is my previous Grady White, it’s a 1973, and the mold was made out of their Lapstrake wooden model, so it has a rounded chine and around an 8 degrees V, which gives me an 8” draft with the Yamaha 115.....I just purchased another one (I sold the first in 2010) and it’s equipped with a similar 115 Yamaha....except I am adding an Hydraulic Jack Plate to be able to raise engine so as to reduce draft.....

    But I would still love to have a catamaran to navigate these waters
     
  2. francotripepi
    Joined: Feb 2019
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    Location: Miami

    francotripepi Junior Member


    I don’t fish Mr Efficiency, I buy fish, eat it with gusto.....but I don’t kill it....I prefer to mix and admire nature, enjoy the peace, colors and sounds...and sleeping on board, under the starry sky, in absolute peace.....it’s paradise.....60 minutes away from Miami....a planet away as it seems
     
  3. Mr Efficiency
    Joined: Oct 2010
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    Location: Australia

    Mr Efficiency Senior Member

    A 20' cat with centre console and "T" canopy for some shade, that does not interfere with walking around the boat with a fishing rod out, should be enough.
     
  4. Mr Efficiency
    Joined: Oct 2010
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    Location: Australia

    Mr Efficiency Senior Member

    Well, you certainly would not be eating the gamefish, the Bonefish and Tarpon, I guess they'd have been fished out ages ago, if good eating.
     
  5. francotripepi
    Joined: Feb 2019
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    Location: Miami

    francotripepi Junior Member

    Lmao.....we practice catch and release around here....Florida Fisheries also have stric rules on what and how much you can catch.....this preserves our fish population...Groupers, Snappers, Hogfish.....there is plenty around here, my favorite to eat is the Red Snapper....delicious meat....the Bonefish and Tarpons are awesome fighters when hooked....so Sport Fishermen look for them for the fight....then they are released
     
  6. francotripepi
    Joined: Feb 2019
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    Location: Miami

    francotripepi Junior Member


    I posted some sketches I drew of some catamarans earlier in the post....I agree with simplicity and usability....and with our sun, a large Bimini Top is a must!
     
  7. Ad Hoc
    Joined: Oct 2008
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    Location: Japan

    Ad Hoc Naval Architect

    Sorry, I should clarify.
    That's for a monohull.
    If you want a cat..divide the ebam by 2 = 700mm.
    If you wanted a tri divide by 3 = 450mm
    etc etc
     
  8. francotripepi
    Joined: Feb 2019
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    Location: Miami

    francotripepi Junior Member


    Thanks Ad Hoc, that helps, parameters always help.....did you see the video of the Shallo Craft X3? Did you got to see their hull, how shallow it is and how straight? The way it can accelerate in one foot of water....outstanding! So, there is always a way, it’s all a trade off, but they all are....
     

  9. Ad Hoc
    Joined: Oct 2008
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    Location: Japan

    Ad Hoc Naval Architect

    As I said earlier...yes:

     
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