Way to combine turbojet and prop drive

Discussion in 'Boat Design' started by RatliffFranklin, Jan 31, 2007.

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  1. stonebreaker
    Joined: May 2006
    Posts: 438
    Likes: 11, Points: 0, Legacy Rep: 42
    Location: Shiloh, IL

    stonebreaker Senior Member

    The LM-2500 turbine engine used in Spruance class destroyers is a split-shaft turbine. The jet engine is not connected mechanically to the power turbine - the jet thrust blows on the power turbine's blades to turn the propeller. This means the engine can stay revved up at full speed all the time. It also means the ship can go from cold to hot in 15 minutes, as opposed to about 6 hours for steam turbine ships.
     
    stonebreaker, Feb 2, 2007
    #16

  3. yipster
    Joined: Oct 2002
    Posts: 3,486
    Likes: 97, Points: 58, Legacy Rep: 1148
    Location: netherlands

    yipster designer

    [​IMG]
    yes, one gasturbine on a single or double shaft out? or have two gasturbines? CR props? than whats stem or stern?
    have the turbine(s?) blow through elbows or would a V drive box do better? ventilate the running delta and/or props with augmented exhoust gasses?
    want a 90.000 or 12.000 rpm jet? a 200.000 or 10.000 $ ? and more considerations http://www.boatdesign.net/forums/showthread.php?t=3595&highlight=gasturbine and http://www.boatdesign.net/forums/showthread.php?t=3595&highlight=gasturbine
    ahh help :confused:
     
    yipster, Feb 2, 2007
    #17
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