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New to Electrics HELP

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Old 06-24-2012, 09:14 PM
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Flyboydaddy
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Default New to Electrics HELP

Hello my name is Kevin and I have a couple question about electric motors. I have been flying glo for years but am building a plane that calls for a 15 size glo engine and am considering converting it to electric. I purchased a Parkzone brushless p-51 and have been enjoying it but do wish it had a bit more power. I have looked at engines but really don't have a clue as to what to select. I have seen some of the engines markes as a 15 size etc. But many are rated differently. The motor in my P-51 is a brushless 480 outrunner I believe. So I am not sure what to select, and don't know what the kv rating means, I thought someone said kilavolt, but am not sure and don't have the knoledge to know is that small or large etc. I know what glo engine sizes are and what types of planes a certain size engine will do. I would really appreciate any info that anyone has, at this point I am clueless what to select. I do know that I want this plane I am building to be very fast. I wish the P-51 I bought was faster. Thanks for any help.
Kevin
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Old 06-26-2012, 04:07 PM
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Default RE: New to Electrics HELP

There are many motors out there that will be a good fit for your 15 sized plane. The higher the KV rating, the smaller the prop. This is not a perfect way of thinking this through but is sort of close. Low KV rating is like a 4s engine. Swings a larger prop slower. I higher KV rating is a 2s motor spinning a smaller prop faster.

What plane are you thinking of converting to "E" power?

For a standard plane here is a 15 sized setup.

Motor
http://www.hobbypartz.com/96m602-big...826-950kv.html

I used a calc program with an APC 12X6 prop.

ESC
http://www.hobbypartz.com/07e05-proton-40a.html

Battery
http://www.hobbypartz.com/98p-25c-2200-3s1p.html

WATT meter, yes this is a MUST HAVE! If you do not use one, you will let the magic smoke out.
http://www.hobbypartz.com/aeo-p0-watt-meter.html

With the above setup, it calc's out to 67 pounces or 4.1 pounds of thrust.

Here is the [link=http://www.s4a.ch/eflight/motorcalc_e.htm]online calc program[/link]

It may seem like you are learning a new language, because you are Just start plugging numbers in and see what changes. It will take a little time but it should start to become as clear.


Buzz.
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Old 07-01-2012, 04:45 PM
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Default RE: New to Electrics HELP

EVERYTHING YOU WANTED TO KNOW ABOUT ELECTRIC POWERED FLIGHT
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Old 09-06-2012, 05:54 AM
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Default RE: New to Electrics HELP

Kevin,

How are you doing?   Tell us of your progress.
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Old 01-04-2013, 07:19 AM
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Kevin?  How you doing?
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