23 SeaCraft Pocket Drive IB

Discussion in 'Hydrodynamics and Aerodynamics' started by JohnCanoe, May 8, 2019.

  1. JohnCanoe
    Joined: May 2019
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    Location: Stuart, FL

    JohnCanoe New Member

    Hi

    I just boat a project 23 SeaCraft IB with a pocket drive. This configuration of the boat is notorious for being a pig. I’ve seen discussions on venting pockets. What would be the potential negative side effects of this? All of your expert advice will be greatly appreciated!
     
  2. Mr Efficiency
    Joined: Oct 2010
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    Location: Australia

    Mr Efficiency Senior Member

    What is the particular vice that needs attention ?
     
  3. JohnCanoe
    Joined: May 2019
    Posts: 2
    Likes: 0, Points: 1
    Location: Stuart, FL

    JohnCanoe New Member

    A lot of the problem can probably be blamed on the inefficient shaft angle of an IB but from what I’ve read adding more power on that model doesn’t add as much in speed as the given increase in power would seem to merit. The idea of venting the pocket was raised on ClassicSeaCraft.com but it was pointed out there may be negative side effects of the modification. I was just wondering what and how serious these potential problems could be.
     

  4. Mr Efficiency
    Joined: Oct 2010
    Posts: 7,760
    Likes: 273, Points: 83, Legacy Rep: 702
    Location: Australia

    Mr Efficiency Senior Member

    The "problem" is what ? The running angle of the boat, or ?
     
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