Weismann Surface drive with transmission

Discussion in 'Surface Drives' started by OCB, Jan 3, 2018.

  1. OCB
    Joined: Dec 2015
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    Location: USA

    OCB Junior Member

    Last edited: Jan 7, 2018
    DogCavalry likes this.
  2. HandMan
    Joined: Aug 2015
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    Location: Dallas, TX

    HandMan Junior Member

    Very cool but I wonder what it's like throttling through heavy seas.
     
  3. DogCavalry
    Joined: Sep 2019
    Posts: 120
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    Location: Vancouver bc

    DogCavalry Senior Member

    This is fantastic! I love the discussion of the linked article, and the video showing the transmission gearing up during different phases of acceleration.
     
  4. DogCavalry
    Joined: Sep 2019
    Posts: 120
    Likes: 27, Points: 28
    Location: Vancouver bc

    DogCavalry Senior Member

    And the engine layout!
     

  5. DogCavalry
    Joined: Sep 2019
    Posts: 120
    Likes: 27, Points: 28
    Location: Vancouver bc

    DogCavalry Senior Member

    Question. For those who didn’t follow the link, the fellas who built this boat used a brilliant engine arrangement, but they also used a pair of auto transmissions with the LS7’s. The video shows the boat running up through the gears, from getting on plane to well above a hundred mph. They won every race they ran in. 11 in a row. Until the league banned auto engines, so their boat couldn’t compete anymore. Sore losers.

    Anyway, since it’s been established elsewhere that multi speed transmissions are useless in boats, it doesn’t make sense for the league to ban them. They’d only be worth banning if they gave an unfair advantage. Which they wouldn’t do, unless the multi speed transmission gave significant performance advantages, which we know it doesn’t.

    And even then, it still doesn’t make sense. If they’d beaten me, I’d just adopt what they did and beat them at their own game.

    So can anyone help me understand how they used a 3 speed transmission to advantage?
     
    Last edited: Nov 16, 2019 at 11:33 AM
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