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Old Mar 23, 2014, 01:15 PM
SR 120,T28D Trojan,F4U Corsair
MercMan007's Avatar
Charlotte, NC
Joined May 2010
40 Posts
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Help - Tricopter Motor Stall

Hello all,

I've just completed the build of my first tricopter and I'm eager to fly but unfortunately I'm having issues with the motors not turning constantly. It seems M2 and M3 but mostly M2 are failing to spin, almost like a stall I guess. I've searched YouTube, Google and RCGroups and found maybe 2 folks that were having the same issue and they both think it may be the ESC's. The motors seem to spin with no issue without the props installed. I have balanced both the blades and the hubs.

Would you kindly have a look at the video below and let me know your thoughts. It's about 2 minutes long. Tried to keep it short and sweet. I'm dying to get this thing in the air and add my video equipment. Any help is much appreciated.

Tricopter Motor Stalling (2 min 19 sec)
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Old Apr 02, 2014, 12:53 PM
SR 120,T28D Trojan,F4U Corsair
MercMan007's Avatar
Charlotte, NC
Joined May 2010
40 Posts
Sent ECS's back to vendor. Will update once I receive the replacements.
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Old Apr 02, 2014, 01:31 PM
Ghent Belgium
Drill's Avatar
Joined Jul 2006
71 Posts
Looks like ESC,s sync problem idd.
Smartdrones SD-M550G 4408 Brushless Motors - Sync problem with 4s LiPo (0 min 54 sec)


Choose another brand or update firmware to the latest version of Simonk.
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Old Apr 11, 2014, 02:23 PM
SR 120,T28D Trojan,F4U Corsair
MercMan007's Avatar
Charlotte, NC
Joined May 2010
40 Posts
Received and installed replacement ESC's last night. That seems to have done the trick! All is now well. Time to trim and tune.
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