Squealing sound at full throttle?

Aerobatman · Sep 14, 2009, 10:49 PM

I have a new plane, my first 'big' electric bird. It's a Graupner AT-6. Running a Castle Phoenix 60, E-Flite Power 60 and 6s 3300 Zippy 20C Lipos.
I've had 8 flights with an APC 14x10 prop and there's been no problem. I wanted more low-end thrust and a slower landing speed so I tried an APC 15x8. On several high-speed passes I heard a squealing, whirring sound from the motor. I've searched on this topic and hear conflicting advice. Some say to retard the motor timing, others to advance? What's going on here?
Static power tests:
14x10 Amps 39, Watts 890
15x8 Amps 45, Watts 980

DonJuan · Oct 11, 2009, 11:31 PM

Sorry I don't have a answer for you. I am having a similar problem with my Phoenix ICE LITE 50. When I get to about 3/4 throttle I hear a noise that's hard to describe, like a squealing sound. It seem like the motor is turning on and off very very quickly so it continues to operate but with noise and slightly less power. As I move towards full throttle the noise stops and the motor runs smoothly and with full power.
Has anyone heard of this before? Is there a fix for this?
My motor is a Torque 2818/900 running with a 4S 2350 Lipo and a 12-6 E prop.

jsmith285 · Oct 14, 2009, 09:13 AM

Been described as squealing like a stuck pig. We are having the simular
issue with a ICE75. Crossing fingers, hoping Castle gets the next version
of software right. Mine just gets worst as the throttle is increased. Never
gets better.

cj-bipe · Oct 14, 2009, 01:00 PM

your controller is coming out of sink with the motor. Set timing to low advance and throttle to medium advance. Try that should fix your problem.

NTM · Oct 14, 2009, 08:40 PM

I fixed that same problem with my ice 75 by replacing it with a scorpion esc, lol

Works great now.

Tech support shrugged and told me to send my motor in to get fixed

Patrick del Castillo · Oct 15, 2009, 10:39 AM

As we have said (several times) we are aware of the issue -- there is a new version of software that will be available this week that resolves the squealing issue on high inductance outrunners.

Patrick

Andy W · Oct 16, 2009, 09:49 AM

I had this with an AXI motor and controller in a 27% Extra. Model lost power at a bad time (turning to base on maiden flight) and crashed, destroyed.

Sounded like a bad bearing, but comes and goes?
..a

jvthert · Oct 16, 2009, 05:40 PM

There's no information about this issue on the site but the latest download of CastleLink software is crippled (an old version 3.13)... It's Friday night and no information whatsoever

Come on Patrick: what's going on? Have the engineers actually identified the problem yet? When will the fix be posted? And are other firmware versions affected?

Patrick del Castillo · Oct 17, 2009, 12:56 AM

Quote:

Originally Posted by jvthert

There's no information about this issue on the site but the latest download of CastleLink software is crippled (an old version 3.13)... It's Friday night and no information whatsoever

Come on Patrick: what's going on? Have the engineers actually identified the problem yet? When will the fix be posted? And are other firmware versions affected?

The fix is in Alpha testing right now. We have identified the issue, fixed the issue, and have testing going on now to make sure we didn't break something else while fixing this issue -- (I'm sure you know how it is with software!!!)

Patrick

jvthert · Oct 17, 2009, 05:56 AM

Of course, but I think being a bit more informative would not hurt Castle! Especially the silence on your own homepage! If you know about this issue you could post a warning. And the trick to prevent more people from downloading the broken firmware is also a bit odd.

Which firmware versions are affected btw? Should I keep my helis grounded this weekend? I'm on 1.61

Patrick del Castillo · Oct 18, 2009, 01:03 AM

Quote:

Originally Posted by jvthert

Of course, but I think being a bit more informative would not hurt Castle! Especially the silence on your own homepage! If you know about this issue you could post a warning. And the trick to prevent more people from downloading the broken firmware is also a bit odd.

Which firmware versions are affected btw? Should I keep my helis grounded this weekend? I'm on 1.61

I guess I don't understand. There isn't any issue with the current firmware, the motor run algorithms haven't changed recently. This is just an upgrade for newer, high inductance outrunners that have recently come to market. The original algorithm sometimes has an issue with synchronizing when high inductance motors are pushed to the saturation point. We are simply updating the motor run algorithm to handle these types of motors better.

Patrick

rick0007 · Oct 18, 2009, 01:17 AM

Quote:

Originally Posted by Patrick del Castillo

I guess I don't understand. There isn't any issue with the current firmware, the motor run algorithms haven't changed recently. This is just an upgrade for newer, high inductance outrunners that have recently come to market. The original algorithm sometimes has an issue with synchronizing when high inductance motors are pushed to the saturation point. We are simply updating the motor run algorithm to handle these types of motors better.

Patrick

I, too, am confused. Aren't you fixing something with V2.18 in this thread?

http://www.rcgroups.com/forums/showthread.php?t=1123992

NTM · Oct 18, 2009, 11:54 AM

Lots of burnt up motors and crashed aircraft/helis out there at this point, admitting to the problem here or on the castle homepage could be quite expensive for castle, not to mention embarassing.

There is a problem with the new firmware on any high pole count outrunner, not just "new to the market" motors.
I wouldn't fly if you've got the new firmware in there, wait for the fix...

DonJuan · Oct 18, 2009, 02:34 PM

Took my ICE 50 out. Put in my old Phoenix 45 with external Castle BEC and everything works just fine now. I want to use the ICE LITE 50 and I have faith that they will fix it. However, this is very disappointing and frustrating. I fly ARFs, I want to put it together and fly, not download software, swap ESCs and hope it works. This is supposed to be my liesure time. I want Castle to tell me that an ICE LITE 50 works perfectly with a Torque 2818/900 spinning a 12-6 E prop on a 4S system BEFORE I put it back in my 48" plane. Can you guys do that for me Patrick?

nsg · Oct 19, 2009, 08:05 PM

Quote:

Originally Posted by DonJuan

...I want Castle to tell me that an ICE LITE 50 works perfectly with a Torque 2818/900 spinning a 12-6 E prop on a 4S system BEFORE I put it back in my 48" plane. Can you guys do that for me Patrick?

With firmware 2.16, mine works. Had a timing loss problem with 2.18 today, though, same setup but 3s.

Sep 14, 2009, 10:49 PM	#1
Aerobatman Registered User Join Date: Nov 2005 Location: Akron, Ohio Posts: 154	Squealing sound at full throttle? I have a new plane, my first 'big' electric bird. It's a Graupner AT-6. Running a Castle Phoenix 60, E-Flite Power 60 and 6s 3300 Zippy 20C Lipos. I've had 8 flights with an APC 14x10 prop and there's been no problem. I wanted more low-end thrust and a slower landing speed so I tried an APC 15x8. On several high-speed passes I heard a squealing, whirring sound from the motor. I've searched on this topic and hear conflicting advice. Some say to retard the motor timing, others to advance? What's going on here? Static power tests: 14x10 Amps 39, Watts 890 15x8 Amps 45, Watts 980

Oct 14, 2009, 09:13 AM	#3
jsmith285 Joes Pit Crew Join Date: Feb 2009 Location: Fort Wayne Posts: 31	Squealing Been described as squealing like a stuck pig. We are having the simular issue with a ICE75. Crossing fingers, hoping Castle gets the next version of software right. Mine just gets worst as the throttle is increased. Never gets better.

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Oct 11, 2009, 11:31 PM	#2
DonJuan Registered Plane Abuser Join Date: Jul 2005 Location: Illinois Posts: 135	Sorry I don't have a answer for you. I am having a similar problem with my Phoenix ICE LITE 50. When I get to about 3/4 throttle I hear a noise that's hard to describe, like a squealing sound. It seem like the motor is turning on and off very very quickly so it continues to operate but with noise and slightly less power. As I move towards full throttle the noise stops and the motor runs smoothly and with full power. Has anyone heard of this before? Is there a fix for this? My motor is a Torque 2818/900 running with a 4S 2350 Lipo and a 12-6 E prop.

Oct 14, 2009, 01:00 PM	#4
cj-bipe FLY IT LIKE YOU HATE IT! Join Date: Mar 2006 Posts: 51	your controller is coming out of sink with the motor. Set timing to low advance and throttle to medium advance. Try that should fix your problem.

Oct 14, 2009, 08:40 PM	#5
NTM Registered User Join Date: Nov 2005 Location: Lloydminster, AB, Canada Posts: 247	I fixed that same problem with my ice 75 by replacing it with a scorpion esc, lol Works great now. Tech support shrugged and told me to send my motor in to get fixed

Oct 15, 2009, 10:39 AM	#6
Patrick del Castillo Registered User Join Date: Oct 2000 Location: Olathe,KS,USA Posts: 2,280	As we have said (several times) we are aware of the issue -- there is a new version of software that will be available this week that resolves the squealing issue on high inductance outrunners. Patrick

Oct 16, 2009, 09:49 AM	#7
Andy W That sickening crunch.. Join Date: Jun 1999 Location: Marietta, GA Posts: 39,779	I had this with an AXI motor and controller in a 27% Extra. Model lost power at a bad time (turning to base on maiden flight) and crashed, destroyed. Sounded like a bad bearing, but comes and goes? ..a

Oct 16, 2009, 05:40 PM	#8
jvthert Jeroen van 't Hert Join Date: Jan 2007 Location: Amsterdam, Netherlands Posts: 29	There's no information about this issue on the site but the latest download of CastleLink software is crippled (an old version 3.13)... It's Friday night and no information whatsoever Come on Patrick: what's going on? Have the engineers actually identified the problem yet? When will the fix be posted? And are other firmware versions affected?

Oct 17, 2009, 05:56 AM	#10
jvthert Jeroen van 't Hert Join Date: Jan 2007 Location: Amsterdam, Netherlands Posts: 29	Of course, but I think being a bit more informative would not hurt Castle! Especially the silence on your own homepage! If you know about this issue you could post a warning. And the trick to prevent more people from downloading the broken firmware is also a bit odd. Which firmware versions are affected btw? Should I keep my helis grounded this weekend? I'm on 1.61

Oct 18, 2009, 11:54 AM	#13
NTM Registered User Join Date: Nov 2005 Location: Lloydminster, AB, Canada Posts: 247	Lots of burnt up motors and crashed aircraft/helis out there at this point, admitting to the problem here or on the castle homepage could be quite expensive for castle, not to mention embarassing. There is a problem with the new firmware on any high pole count outrunner, not just "new to the market" motors. I wouldn't fly if you've got the new firmware in there, wait for the fix...

Oct 18, 2009, 02:34 PM	#14
DonJuan Registered Plane Abuser Join Date: Jul 2005 Location: Illinois Posts: 135	Took my ICE 50 out. Put in my old Phoenix 45 with external Castle BEC and everything works just fine now. I want to use the ICE LITE 50 and I have faith that they will fix it. However, this is very disappointing and frustrating. I fly ARFs, I want to put it together and fly, not download software, swap ESCs and hope it works. This is supposed to be my liesure time. I want Castle to tell me that an ICE LITE 50 works perfectly with a Torque 2818/900 spinning a 12-6 E prop on a 4S system BEFORE I put it back in my 48" plane. Can you guys do that for me Patrick?