Efficient Model hull design.

Discussion in 'Boat Design' started by awhapshott, Feb 7, 2013.

  1. awhapshott
    Joined: Apr 2012
    Posts: 14
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    Location: Southern England

    awhapshott Junior Member

    Hi Wayne,

    Nope, the channel isn't actually mine, it was my fellow group members who is very keen on his trains..

    I've sailed all my life and now campaigning a 49er dinghy and studying Marine and Composites Technology at University, so I am very much focused on sailing! :)
  2. aaronhl
    Joined: Aug 2012
    Posts: 298
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    Location: Central Connecticut

    aaronhl Senior Member

    4 point hydro or outrigger
    This one is about 41" long powered by a 5hp gasoline engine with 2-3 inch prop

  3. awhapshott
    Joined: Apr 2012
    Posts: 14
    Likes: 1, Points: 0, Legacy Rep: 26
    Location: Southern England

    awhapshott Junior Member

    Hi aaronhl,

    Looking at carrying a 1kg mass and we are fixed with a 3v motor, somehow I doubt we are looking at planing speeds :(

  4. myark
    Joined: Oct 2012
    Posts: 692
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    Location: Thailand

    myark Senior Member

    Maybe making model looking like this one from the past.

    Pontoon Boat Aims at 150-Mile Speed

    Strange Craft Has Tractor Propeller Under Its Cockpit and Draws Inch of Water

    SAFE water travel, at speeds that only the most daring race pilots now attempt, is brought within reach of everyone by a radically new type of water craft. When suitable motors are installed, the inventor expects it to shatter all records and attain 150 miles an hour. Despite its swiftness, the airplane-shaped boat demonstrated extraordinary stability in its first trials on Long Island Sound, N. Y., the other day. It amazed marine experts among the spectators by turning around in its own length, at high speed, without upsetting.

    The inventor, Thomas A. E. Lake, son of Simon Lake, famous builder of submarines, predicts that his superspeedboat will banish risk and discomfort from two-mile-a-minute water travel. It skims the surface on three pontoons equipped with shock-absorbers drawing only an inch of water when in motion. The wide span of the forward pair of pontoons accounts for the craft’s stability. When the helmsman turns the steering wheel, the rear pontoon pivots to serve as a rudder. Meanwhile, through interlocking levers, the forward pontoons are automatically banked to aid in rounding a turn. A tractor-type propeller, beneath the center of the twenty-one-foot craft, pulls it along. The whole boat rotates about this center when a turn is made. A thirty-five horsepower outboard motor was used in the experimental trials, and installed just in front of the pilot’s seat so the hinged propeller shaft could be drawn up into the cockpit.

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