Recent content by Jimmy22

  1. J

    Electric Hydrofoil/E-Foil

    the prop has to be in the water at all times to drive, with most blade shapes if it sees any air it will ventilate like foils do (unless it is a cleaver prop style or surface drive propeller) , lower the better because even with a 1000mm mast you only have about 700mm workable range left when...
  2. J

    Electric Hydrofoil/E-Foil

    Yes i know there are no suitable 70Kv motors at present and that they will be pretty big to have dragging sub surface. Last weekend we had two foil riders at 85 kg and a rider at 50 kg, it was roughly a 3kmph difference to get all of us foiling so the rig just needs a roughly 700 to 900 cm2...
  3. J

    Electric Hydrofoil/E-Foil

    The very basic thought behind a gearbox is this : The voltage is typically 50V to keeps Amps low , the RPM needs to be very roughly 3000 , now how many KV do you need ? 70Kv or so ( roughly) , who makes a 70Kv inrunner , and how smooth is that motor at startup and what size is that motor...
  4. J

    Electric Hydrofoil/E-Foil

    Making life a bit harder on the dwarfcraft board :) , maybe program the esc or throttle control for less sensitivity , Pacific Meyster said the key is to get up to speed before popping the foil, i imagine the NF2 slingshot foils are lifting at about 15 kmph or so , but then it depends if you are...
  5. J

    Electric Hydrofoil/E-Foil

    Yes the 2018 Slinghot offerings, but the sup foil is not released as of yet so quite an unknown quantity, with no reviews , i note on Ali express the rear foil is upside down on the sup foil ! i assure you folks that will not work, i own one of those rear foils and mounts and it isn't designed...
  6. J

    Electric Hydrofoil/E-Foil

    #4 looks like the slingshot NF2 foil , the others are the Fwind1 and Fwind2 foils and the sup foil is an unknown monster . #4 (NF2 ) will get out of the water about 15 kmph and is a higher speed foil , the others will lift earlier http://www.slingshotsports.com/FOILS i would have thought...
  7. J

    Electric Hydrofoil/E-Foil

    Hi All, Great work on getting your own Efoils up and running, we are working on one also and the success here is heartening. In the mean time we have been tow foiling for a few months and testing prototype production foils and making our own entire rigs . I would like to share a few thoughts...
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