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Old 05-04-2012, 01:13 AM   #1
Sulzer
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Default Scorpion motor self-destruction

Two days ago I had a very usual fly with my trex 450. Heli has motor (Curtis Youngblood Next-D Scorpion 8 Motor) that I bought from amainhobbies.com. While I did second flight I've suddenly heard bad crashing sound from my heli, then she had a very hard landing.
I don't understsand what I did wrong. I'm a very quiet flyer without extreme maneurs. My settings very common and well discussed. You can see logs from my CC ICE50, my settings and some photos. This motor did about 40-50 flights, nothing special. As I understand the reason is unglued magnet. This is not a big problem for me as I have spare Turnigy motor (that I used before ) and I happy my CC ICE 50 didn't get any damage (I've checked it ).
But anyway I was absolutely sure about my new Scorpion motor after simple Turnigy and I'm not very happy about this case.....
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Old 05-04-2012, 01:22 AM   #2
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Old 05-04-2012, 02:09 PM   #3
Sulzer
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I did more investigations today. I disassembled the motor. The condition of bearings is perfect. Fixing screws (small on photos) to hold the rotor on the shaft are clear and dry, no sign of threadlock or some glue to prevent unscrewing. Thease screws rotates freely no minimum force neded. So now I understand what happend. The rotor just sleepped down from the shaft without neccersary fixing and that's the case.
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Old 05-04-2012, 02:28 PM   #4
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Old 05-07-2012, 04:03 AM   #5
Richard_Scorpion
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Dear Sulzer

Please kindly check the PM

Best Regards
Richard
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Old 05-07-2012, 07:20 PM   #6
flyfishsick
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i had the same thing happen to me on a brand new scorpion ( 880 kv ) motor that came with my protos 500!!! only had about a dozen flights on it!!!! i try and post some pics of the motor?
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Old 05-07-2012, 08:32 PM   #7
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Wow... Is there warranty for it?


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Old 05-08-2012, 12:51 AM   #8
Sulzer
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Wow... Is there warranty for it?

I hope YES! Sending the motor back to scorpions for inspection and repair.
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Old 06-25-2012, 07:57 AM   #9
Sulzer
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So.. today I got my motor after Scorpion warranty repair. Everything looks fine!
I'm now flying with align450mx (not bad motor). Will try my scorpion next week.
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Old 06-27-2012, 11:00 AM   #10
TheMark
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Thats good news!

Do you know if its been verified that the Next-D -8 is the exact same motor as the Scorpion 2221-8? Just seems odd that the price is so different.
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Old 06-27-2012, 02:35 PM   #11
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If I'm not mistaken... its just the older version of the 2221-8.
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Old 06-28-2012, 10:10 AM   #12
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FWIW: I emailed Scorpion and received this response

"Thank you for contacting us, the performance is almost the same between these two models, only the internal structure is slightly difference in order to perfectly fit for CYs model."
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