"Vision Marine Technologies Testing Electric-Powered 32-Foot Cat With 100-Plus-MPH Goal In Mind

Discussion in 'Boat Design' started by Jimboat, Aug 26, 2022.

  1. Jimboat
    Joined: Feb 2002
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    Jimboat Senior Member

    Jimboat, Aug 26, 2022
    #1
    fallguy likes this.
  2. jehardiman
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    jehardiman Senior Member

    With modern Lithium Nickel Manganese Cobalt Oxide (NMC) battery banks the 16kWH you need for a speed run is only ~106 kg, so about the size of a 30 gal fuel tank....but only 3 minutes of power.
     
    jehardiman, Aug 26, 2022
    #2
  3. Kayakmarathon
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    Kayakmarathon Senior Member

    One motor controller design I worked on drew only 2 KW, but still needed a dry ice cooling system in the lab. What kind of cooling system has been designed in to prevent motor winding insulation from melting and shorting?
     
    Kayakmarathon, Aug 27, 2022
    #3
  4. jehardiman
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    jehardiman Senior Member

    Not sure from the article, but must be the same cooling system that cools the dual 160 kW OBs.
     
    jehardiman, Aug 27, 2022
    #4
  5. fallguy
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    fallguy Senior Member

    The tradeoff on run time is exceptionally disappointing.

    But, perhaps these efforts are how the envelope needs to be pushed.
     
    fallguy, Aug 28, 2022
    #5

  7. slboatdesing
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    slboatdesing Senior Member

    How much horsepower is needed for 100 mph from a conventional outboard? As for cooling why not mount the entire thing underwater and get it water cooled for free? Of course there is the electronics.
     
    slboatdesing, Sep 17, 2022
    #6
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