[NSRCA-discussion] Brushless Motor Tester

[Anthony Romano]

I only tried this once but the motor was fine.
 
http://www.wattflyer.com/forums/showthread.php?t=35216
 
 
Anthony
 

> To: nsrca-discussion at lists.nsrca.org
> From: vanputte at cox.net
> Date: Sun, 7 Aug 2011 09:58:31 -0500
> Subject: [NSRCA-discussion] Brushless Motor Tester
> 
> While at the F3A WC/Nats, I was talking to someone (can't remember 
> who), about a brushless motor tester. By hooking up this tester to 
> all three leads of the motor, you can test the motor for proper 
> functioning.
> 
> This has become an issue when several pilots had speed controllers 
> burn up when the battery was hooked up to or disconnected from the 
> speed controller. When the flaw is present and the motor is put in 
> one or more "sensitive" orientations, the speed controller burns up. 
> This happened to one of the Norwegian competitors on the first day of 
> the Prelims and we watched helplessly as the nose of his airplane 
> caught fire.
> 
> Strangely, if the motor isn't stopped in one of these "sensitive" 
> orientations, it appears to function normally. An unnamed pilot, who 
> rode to the F3A WC/Nats with me, burned up three speed controllers in 
> the last few weeks before the Nats, before replacing the motor in his 
> Black Magic with another motor from the same manufacturer.
> 
> Can anyone identify the source of a brushless motor tester which is 
> available for our brushless motors?
> 
> Ron Van Putte
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