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23976Re: [bolger] Re: Aerated Power Boat Bottoms /Sneakeasy

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  • John Bell
    Sep 30, 2002
      During the BOC back in 94?, the Open 60 "Hunter's Child" had a such a system
      installed. When the boat reached a certain was supposed to aspirate air
      through a series of holes in the bottom aft of the keel, reducing frictional
      drag. They got it to work, but I never heard if it actually helped.

      JB

      ----- Original Message -----
      From: "dbaldnz" <oink@...>
      To: <bolger@yahoogroups.com>
      Sent: Monday, September 30, 2002 7:56 PM
      Subject: [bolger] Re: Aerated Power Boat Bottoms /Sneakeasy


      | Hi Tom, have you ever heard whether whether there is a speed
      | improvement?
      | DonB
      |
      | > Don,
      | >
      | > Many powerboat designers and experimenters have tried aeriating
      | the
      | > hull bottom but usually with step bottoms. Some have used air
      | > inlets to augment the air that gets in the normal way through the
      | > chine area and a few have closed off the chine at the step and
      | > supplied all the air from the deck by power fans. Some have
      | routed
      | > the engine exhaust through the bottom. I have not heard of it
      | being
      | > done on a sailboat as you speak of though.
      | >
      | > Tom
      |
      |
      |
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