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Author Topic: Brushless Question  (Read 566 times)
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frostman
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« on: February 25, 2009, 02:37:52 PM »

Hi everyone :
I don't know if this is the right place to put this or general discussion, but here it is.
I have just purchased 2 combo sets of Suppomodel Bell B2208/17 1100 KV brushless motors
and 18 amp ESC's. My question is has anyone used this set up? And what 3 bladed props, and batterys would work best for this setup to be used in a GWS C47?
I am a rank newbe to brushless and don't want to hurt my stuff, any help will be appreciated. Thank You. Frostman...
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Sundance12
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« Reply #1 on: February 25, 2009, 08:23:46 PM »

Hi Frostman

I did a little research on the motor that you specified and found some data that may help.

WA22-08-17 • #Li poly 2 -- 3 • KV 1000 RPM/V Max. efficiency 80% • Max. efficiency current 4 - 7A (>74%) No load current/10V 0.4A • Current capacity  8 A/60s • Internal Resistance(ohm) 0.125 • Recommended model weight 200 - 500 g • Prop Sizes 2xLipo - 10"x5" or 3xLipo - 9"x5" • Motor Dimensions - 27.5x26 mm

That being said, I am having a bit of a hard time with the size of the props as I feel that they may be a bit big but it's a hunch. You will have to check the dimensions to see that these match.

This Data is for a Welgard WA22-08-17 motor which is a intermediate priced product from China. I was not pleased with my motor as it overheated and the windings all failed on mine. I have one of the other larger sizes of this brand and it seems a little better quality. Your motor may be better quality I hope.

Cheers

Sundance12
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frostman
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« Reply #2 on: February 26, 2009, 10:24:55 AM »

Thanks Sundance :
I have gotten some replies from other places, and frankly I am confused.
One say's to use 9x4.7 SF and no more than 900 mah 2cell, and the other says use 1000 mah 3 cell and from 8x5 to 10x5 props. So I am still in the dark.
The guy I got them from say's that they will fly a 10.5 oz plane 3d. He may have ment 10.5 gram who knows? I just do not want to burn them up.
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