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  1. #1
    Commander
    Join Date
    Mar 2002
    Location
    Fort Worth Texas
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    2,377

    Default What does "Tunnel Hull" mean?

    And what makes them different from any other hull?

  2. #2
    Seaman
    Join Date
    Sep 2002
    Location
    OKC, OK
    Posts
    73

    Default Re: What does "Tunnel Hull" mean?

    Nathan,Check out this PDF file. SS182 Tunnel Hull

  3. #3
    Commander
    Join Date
    Mar 2002
    Location
    Fort Worth Texas
    Posts
    2,377

    Default Re: What does "Tunnel Hull" mean?

    All that talked about was racing boats, hydroplanes and catamarans, I saw a PolarCraft Bass boat that said it was a tunnel hull. I and I was just wondering what it meant.

  4. #4
    Admiral
    Join Date
    Aug 2002
    Location
    corpus christi texas
    Posts
    6,873

    Default Re: What does "Tunnel Hull" mean?

    Nathan ,a tunnel hull is one in which the centerline of boats bottom has a contoured undercut and allows the engines lower unit or outdrive to run closer to flush with bottom of boats hull.This undercut creates a water tunnel,hence the term"tunnel hull."They use a lot of them here on the Texas gulf coast for fishing flats ,which allows the boat to run shallower without lower unit running ground.

  5. #5
    Chief Petty Officer
    Join Date
    Dec 2001
    Location
    Vancouver, WA
    Posts
    561

    Default Re: What does "Tunnel Hull" mean?

    There are also lots of displacement hulls that have various versions of tunnel drive. They're all intended to push water into the prop more efficiently...and to help keep the props from damage when sitting on a beach during low tide. Many of the commercial fishing boats in the PAC/NW are so designed.Here's a couple of examples: http://www.gsiboat.com/cgi-bin/fishp...2592&type=bbay http://www.gsiboat.com/cgi-bin/fishp...2620&type=bbay

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