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Old Jun 24, 2001, 08:47 PM
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miker's Avatar
Shrewsbury, MA
Joined May 2001
161 Posts
B-2 motor != N20 mabuchi?

I have always assumed that the motors used in the Watt-age B2 were the same as the N20 motors. I have a reliable source that explains that these are not the same.

Can anyone give more information on the differences?

Here is the B2: http://www.hobbypeople.net/gallery/128400.htm

Here are the motors: http://www.hobbypeople.net/gallery/128470.htm

Here are the N20 motors: http://www.allelectronics.com/cgi-bi...166&type=store

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Old Jun 24, 2001, 10:27 PM
Just an average RC'er
Jim McPherson's Avatar
Laurel, Maryland USA
Joined Aug 2000
4,291 Posts
Well, I'm using those exact motors from allelectronics as direct replacements for the B2 motors. Working fine so far.

-Jim
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Old Jun 25, 2001, 08:00 AM
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miker's Avatar
Shrewsbury, MA
Joined May 2001
161 Posts
Thanks for that data point. Do the motors look identical? Do you notice any reduction in thrust?
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Old Jun 25, 2001, 09:51 AM
Strange Plane Central
frankenfoamy's Avatar
Poway (near San Diego), CA US
Joined Dec 2000
1,883 Posts
A quick look at the endbell tells you that they are not N20.
The thrust is similar but the N20PN pulls almost twice the amps an gets hot as compared to the B2 mystery motor.
The N20PA is anemic.
The N20s have wire brushes. B2?
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Old Jun 26, 2001, 07:17 PM
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Jim McPherson's Avatar
Laurel, Maryland USA
Joined Aug 2000
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Yes, frankenfoamy is correct, I just compared the two motors and the B2 motor is not the same.

-Jim
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