Propulsion

Discussion in 'Boatbuilding' started by DEDave, Oct 12, 2003.

  1. DEDave
    Joined: Oct 2003
    Posts: 4
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    Location: Houston

    DEDave New Member

    Hello everyone,

    I want to identify myself up front as being from FEYS and a bit of a Diesel Electric bigot.

    I have joined in order to lean (and perhaps share), not to promote our product.

    I am and have been involved in several "non-traditional" proplusion R&D projects and find some of the posts here very interesting.

    Cheers
     
  2. TopSpin80
    Joined: Oct 2003
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    Location: Galveston

    TopSpin80 Junior Member

    I am very interested in the propulsions system.... Last night I wrote you guys a letter about putting it in a race boat.
     
  3. OPS Man
    Joined: Oct 2003
    Posts: 2
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    Location: ormond beach

    OPS Man New Member

    engine option

    Do you have any ideas for an electric/diesel engine that may be compatible with a JetPac? We are always open to new and innovative ideas. www.jetpac.us
     
  4. DEDave
    Joined: Oct 2003
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    Location: Houston

    DEDave New Member

    Diesel Jet

    There have been several "whiteboard" sessions between our company and various waterjet makers. The torque curve of an electric motor is different than that of a diesel and everyone has been interested to see if an electric motor would help with some of the inefficent spots on a jet's thrust map (low speeds).

    Really, we don't think so, but I understand that some are being built on a small scale just to prove it one way or the other. I'll let the jet folks do the braggin.
     
  5. sideditch
    Joined: Jul 2005
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    Location: NC, USA

    sideditch Junior Member

    Racing Propulsion

    It would seem a good choice for the intake of any propulsion system to function as the entrance of a venturi with the force applied at the exit of the venturi.
    The key element of the distribution of the "element" leaving the powered section to be shaped in the concept of a square not round distribution 'tunnel' thereby distributing the force to a wider area for maximum reaction trust impact.

    i.e. after entering a round venturi, exit the thrust element to square or rectangular tubes to spread exit to larger area of water for maximum thrust.

    (even the concept of the propeller or thrusting element being like the armature of an electric motor is viable.

    Study the catamaran.

    Good thinking, sideditch
     
  6. Corsair266
    Joined: Feb 2009
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    Location: india

    Corsair266 Junior Member

    i haven't got major in engine ,but can u tell me more about "Diesel electric" ,i only hear Diesel engine ,i know how does a diesel engine operare ,but i don't know about Diesel Electric,can u give me some differences?
     
  7. apex1

    apex1 Guest

    I can give you a better than broad overview by providing this link from a earlier post first:

    For my fellow members interested in a deeper insight into marine propulsion efficiency I´ll provide some links. Start here:
    http://www.proboat-digital.com/proboat/20070607/
    goto "content" then page 82 "Hybrid Marine Power" read the article in the following issues too

    Regards
    Richard
     

  8. Corsair266
    Joined: Feb 2009
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    Location: india

    Corsair266 Junior Member

    Thanks ,i got it
     
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