4s vs. 5s same speed

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  • steveo
    Fast Electric Addict!
    • Apr 2007
    • 1454

    #1

    4s vs. 5s same speed

    if you had two identical boats both with 2000kv motors both propped to go 40 mph one on 4s and other on 5s would they both draw similar amps and have close runtime
  • 6sHyper
    <<<Surfs up!
    • Jan 2011
    • 597

    #2
    I would imagine the one on 4s would have shorter run times and draw more amps as it would have to have a larger prop.

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    • steveo
      Fast Electric Addict!
      • Apr 2007
      • 1454

      #3
      i put this thread in the wrong place could someone move it

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      • keithbradley
        Fast Electric Addict!
        • Jul 2010
        • 3663

        #4
        Originally posted by steveo
        if you had two identical boats both with 2000kv motors both propped to go 40 mph one on 4s and other on 5s would they both draw similar amps and have close runtime
        No. It takes a certain amount of power (watts) to go a given speed. Volts x Amps = Watts. With a higher voltage, you need a lowe curren tto achieve the same power.

        Runtime is relative to current draw, so obviously this would change as well.
        www.keithbradleyboats.com

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