23' Carolina Style Center Console

Discussion in 'Boat Design' started by Bluwaterbrew, Nov 6, 2015.

  1. Bluwaterbrew
    Joined: Mar 2009
    Posts: 16
    Likes: 0, Points: 1, Legacy Rep: 10
    Location: North Carolina

    Bluwaterbrew Junior Member

    Hey everyone,

    Let me start off by saying that I do not claim to be a yacht designer or a naval architect, I do however, know a little a bout boats. I got some new 3-d modeling software a couple of weeks ago and of course I started modeling a boat to help myself learn it.

    I started modeling it with absolutely no intentions of actually building it so I haven't done any calculations at all. This project has been done by eyeball and estimation. With all of this said, I still think its cool and wanted to share it.
     

    Attached Files:

  2. Mr Efficiency
    Joined: Oct 2010
    Posts: 7,635
    Likes: 255, Points: 83, Legacy Rep: 702
    Location: Australia

    Mr Efficiency Senior Member

    My first impressions are, you have a lot of deadrise angle, maybe more than would be advisable for a fishing boat, and your waterlines forward are so full, I would expect a lot of "bog" when the bows dip into the back of a wave. It is so broad-shouldered, I doubt your big flare high up would much come into play, apart from catching some air-borne spray, from one year to the next.
     
  3. Bluwaterbrew
    Joined: Mar 2009
    Posts: 16
    Likes: 0, Points: 1, Legacy Rep: 10
    Location: North Carolina

    Bluwaterbrew Junior Member

    Thank you for your input. The deadrise is 20 degrees at the transom. The bottom would definitely require some work if I were to decide to build it.
     
  4. Bluwaterbrew
    Joined: Mar 2009
    Posts: 16
    Likes: 0, Points: 1, Legacy Rep: 10
    Location: North Carolina

    Bluwaterbrew Junior Member


    I also agree that the entry needs to be much sharper.
     
  5. gonzo
    Joined: Aug 2002
    Posts: 13,478
    Likes: 346, Points: 93, Legacy Rep: 2031
    Location: Milwaukee, WI

    gonzo Senior Member

    Carolina boats have about 14 degree deadrise at the stern. The chines sweep at a gentler angle. Your profile shows a blunt transition.
     
  6. Milehog
    Joined: Aug 2006
    Posts: 387
    Likes: 22, Points: 18, Legacy Rep: 215
    Location: NW

    Milehog Clever Quip

    The forward beam is cartoonish. Look at Carolina hulls and you will see the hulls are quite fine forward.
     
  7. Bluwaterbrew
    Joined: Mar 2009
    Posts: 16
    Likes: 0, Points: 1, Legacy Rep: 10
    Location: North Carolina

    Bluwaterbrew Junior Member

    Thanks for the input guys. I have started my second attempt at a Carolina hull using the feedback received. Once again I am using this hull to learn Solid Edge and to figure out how to manipulate surfaces to get the desired form. After I get this down I will move into attempting to design something that is actually buildable.
     
  8. Bluwaterbrew
    Joined: Mar 2009
    Posts: 16
    Likes: 0, Points: 1, Legacy Rep: 10
    Location: North Carolina

    Bluwaterbrew Junior Member

    Here is attempt 2. I am still playing around trying to figure out how to get it a little more fair.
     

    Attached Files:

  9. gonzo
    Joined: Aug 2002
    Posts: 13,478
    Likes: 346, Points: 93, Legacy Rep: 2031
    Location: Milwaukee, WI

    gonzo Senior Member

    The sheer should be a straight line in profile from the turndown to the bow. Otherwise, it makes it look like there is a hook and/or hollow from some angles. I have lofted and built many of them.
     

    Attached Files:

  10. Bluwaterbrew
    Joined: Mar 2009
    Posts: 16
    Likes: 0, Points: 1, Legacy Rep: 10
    Location: North Carolina

    Bluwaterbrew Junior Member

    Gonzo, should the keel be a strait line as I have it too? Or should it be angled downward to the bow as in the first hull I posted?
     
  11. Mr Efficiency
    Joined: Oct 2010
    Posts: 7,635
    Likes: 255, Points: 83, Legacy Rep: 702
    Location: Australia

    Mr Efficiency Senior Member

    I'm sure I'm spouting a heresy (to some) in saying it, but I don't see a lot of value in this Carolina flare business. Especially in a smallish (under 30', say) boat. Aerodynamic penetration is not so good in headwinds particularly, and you are going to get unwanted lift forward, in head-seas. Probably not such a handicap in bigger boats with flybridges etc, but really can't see it being much more than a stylistic device, with not much practical advantage, in trailer boat sizes.
     

  12. gonzo
    Joined: Aug 2002
    Posts: 13,478
    Likes: 346, Points: 93, Legacy Rep: 2031
    Location: Milwaukee, WI

    gonzo Senior Member

    The way you position the keel on the drawing is not important. The running angle, that is at planing speeds, is what matters. Boats don't necessarily float on the lines you draw, unless it is the result of design calculations.
     
Loading...
Forum posts represent the experience, opinion, and view of individual users. Boat Design Net does not necessarily endorse nor share the view of each individual post.
When making potentially dangerous or financial decisions, always employ and consult appropriate professionals. Your circumstances or experience may be different.