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    Questions about bulbs

    Some ships have no bulb, but most have.
    Now there are even drawings/artist impressions out showing a bulb on an X-BOW design.

    Not pretty at all, that led me to ask myself:
    For the exact same design...., what does a bulb on that design mean vs. not a bulb when calculating efficiensy, economics, fuel saving, speed and more...???

    I'm not a mathematic genious, but are there anyone out there who could tell me in an understandable way the obvious benefit by use of a bulb??

    You know, if they plan to equip an X-BOW with a bulb..., and thereby make a very ugly design, there HAS to be a very positive effect.

    If there are no one who could give the mathematics, could anyone lead me towards a link or something explaining the hole thing..?
    "IF GOD COULD MAKE ANGELS...., WHY IN HELL MAKE MAN?"

    #2
    I have never seen a ship with both a bulb AND an X-bow... yet.

    But, the idea about the bulb is that it breaks the water before the hull "comes", hence the frequency of the waves hugging the ship is changed/altered. It reduces resistance in the sea.

    Plainly spoken, a bulb reduces the wave-frequency, and improves it, along the whole hull in the length of the ship.
    With best regards from Jan-Olav Storli

    Administrator and Owner of CaptainsVoyage.
    Main page: http://www.captainsvoyage.com
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