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Thread: .46 convertion


  1. #1

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    Thumbs up .46 convertion

    Hi folks
    I am replacing a OS .46 with a 11x7 prop with a electric motor.
    The question is if it were on a test stand what size motor.battery and ESC will i need to get the same performance?
    I am guessing I will need 1000 watts roughly.If it iis a help I will be converting a 40 size Kaos ,40 size sportster and sportster bi plane.
    I would like to keep it to 4S or 5S battery.
    Thank you for all the help.
    Last edited by john_s3; 03-23-2014 at 05:06 PM.
    I Spent All My Money On Planes,Woman,And Cigars The Rest I Wasted!!

  2. #2

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    Something like this: http://www.e-fliterc.com/Products/De...odID=EFLM4046A

    Personally I'd use 5s if you want the 11x7... 4s would need 13"-14" prop.
    Dr Phil Millener, Chattanooga, TN

  3. #3
    Moderator aeajr's Avatar
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    EVERYTHING YOU WANTED TO KNOW ABOUT ELECTRIC POWERED FLIGHT
    http://www.rcuniverse.com/forum/m_7100376/tm.htm

    My first question is always about weight. How much does the plane weigh, all up, ready to fly today?

    Typically for a glow conversion we shoot for about 100 watts/pound. If you are one of these "way to much power Is just about right" then we might shoot for 150 to 200 watts/pound.

    But using an electric "40" is a good target for typical pilots.

    I find the Electrifly motor selector very helpful.
    http://www.electrifly.com/powersyste...tem-index.html

    There are more detailed configuration tools but these are out of the conversion table.
    http://www.electrifly.com/powersyste...brushless.html

    .40 42-40-1000 GPMG4675 SS-60 Not Needed Medium 5 10 x 5E 12,450 46.4 4 cell (3200)
    .46 42-50-800 GPMG4700 SS-60 Not Needed Medium 5 10 x 5E 13,080 40.2 5 cell (2100)



    Last edited by aeajr; 03-26-2014 at 11:08 AM.
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