Scorpion motor self-destruction

Sulzer · 05-04-2012, 01:13 AM

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.....

powercroco · 05-04-2012, 01:22 AM

Sulzer · 05-04-2012, 02:09 PM

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.

powercroco · 05-04-2012, 02:28 PM

Richard_Scorpion · 05-07-2012, 04:03 AM

Dear Sulzer

Please kindly check the PM

Best Regards
Richard

flyfishsick · 05-07-2012, 07:20 PM

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?

Gladiator · 05-07-2012, 08:32 PM

Wow... Is there warranty for it?

Sent from my iPhone using Tapatalk

Sulzer · 05-08-2012, 12:51 AM

Wow... Is there warranty for it?

I hope YES! Sending the motor back to scorpions for inspection and repair.

Sulzer · 06-25-2012, 07:57 AM

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.

TheMark · 06-27-2012, 11:00 AM

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.

BaconRaygun · 06-27-2012, 02:35 PM

If I'm not mistaken... it’s just the older version of the 2221-8.

TheMark · 06-28-2012, 10:10 AM

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 CY’s model."

05-04-2012, 01:22 AM	#2
powercroco Registered Users Join Date: Oct 2011 Location: germany	edit Last edited by powercroco; 05-04-2012 at 02:45 PM..

05-04-2012, 02:09 PM	#3
Sulzer Registered Users Thread Starter Join Date: Oct 2011 Location: Murmansk, Russia	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. Attached Thumbnails

05-04-2012, 02:28 PM	#4
powercroco Registered Users Join Date: Oct 2011 Location: germany	edit

05-07-2012, 08:32 PM	#7
Gladiator Registered Users Join Date: Aug 2011 Location: Miramar, FL	Wow... Is there warranty for it? Sent from my iPhone using Tapatalk __________________ - T-Rex 700N - vBar / DFC / OS91 / JR 8917HV / MKS HBL980 - T-Rex 500 - vBar / DFC / Scorpion 3026-1400 / Align DS515 / MKS 8910a+ - T-Rex 450 - iKon / DFC / 450MX - MKS DS95/DS95i / - Blade 130X Beta

06-27-2012, 02:35 PM	#11
BaconRaygun Registered Users My HF Map location Join Date: May 2010 Location: Long Island, NY	If I'm not mistaken... it’s just the older version of the 2221-8. __________________ ~Outrage~ Fusion 50 (FB) ~Compass~ Warp 360 ~Blade~ mCP X (BL) AMA# 977012 Team Boca BearingsTeam LYNX Heli Innovations The member formerly known as Vicovaludemero

05-07-2012, 04:03 AM	#5
Richard_Scorpion Registered Users Join Date: Jan 2012 Location: Hong Kong	Dear Sulzer Please kindly check the PM Best Regards Richard

05-07-2012, 07:20 PM	#6
flyfishsick Registered Users Join Date: Sep 2007 Location: NJ	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?

05-08-2012, 12:51 AM	#8
Sulzer Registered Users Thread Starter Join Date: Oct 2011 Location: Murmansk, Russia	Wow... Is there warranty for it? I hope YES! Sending the motor back to scorpions for inspection and repair.

06-25-2012, 07:57 AM	#9
Sulzer Registered Users Thread Starter Join Date: Oct 2011 Location: Murmansk, Russia	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.

06-27-2012, 11:00 AM	#10
TheMark Registered Users Join Date: May 2012 Location: South Florida	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.

06-28-2012, 10:10 AM	#12
TheMark Registered Users Join Date: May 2012 Location: South Florida	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 CY’s model."

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode