Any comment on this motor for F3A 2X2 pattern plane.

My setting -
Turnigy HV-100amp ESC
Zippy 5S1P x2unit 25C/4800mah
Xoar 19x13 electric wooden prop for F3A

I brought this motor 1 1/2 month ago, after 6 fly this motor fail me, it short internal and end up burn my ESC, (i test the motor b4 max 72amp/2500watt, it is not possible to burn anything) because of bad Q.C. (will post the picture on how the internal design was), I ask wiring expert try to rewire the motor but according to the technician, he say is better save my money to buy another brand of motor, just querry it's my luck or other also having the same question.

Thanks

ivanwhlee, I think your motor may have come out of the same batch as my TGY Aerodrive SK Series 63-64 230 kv/3150 motor! Can you spell JUNK? Regards____TNWalker

Ivan ... what did the vendor say? Tze Law and Danny have been flying theirs with no isse but they are turning a 19x12 I believe. Are you pulling too many amps? I believe that the motor is not rated for such high amps. Perhaps its about cooling and throttle management?

TNWalker - Let the picture tell the answer, will be post it soon when I get back my motor.... (JUNK or not ???????????)

Tianci - Are you pulling too many amps? - recommended by Hyperion 75amp (my 72amp with 19x13WE wooden), other use APC 19x12WE with 85amp, so am I wrong ???

Let wait for the picture, sure will be surprise everyone.

ivanwhlee, We cannot both be right. I am a very patient individual and will stand by my original statement until the manufacturer of these motors can disprove it! I am also
wondering why some of the "Experts" from the original thread about The Turnigy Aerodrive SK Series 63-64 230kv/3150 motor have not jumped in here with their expertise and
knowledge. Surely, I'm not the only one they like to take to task! Anyway, I hope you have success trying to resolve this problem. Regards_____TNWalker

TN ... we both been through there yea? I still say China branded motors in the 63XX class are not good for high performance. Anyways, my friend the Hyperion is not in the same boat at the China branded motors. I seen 2 perform and its brilliant, does not heat up as much too. BTW what does the Turnigy SK remark mean? Pray tell! Heheheehehe ...

Ivan ... it could be a lemon, a one off and this happens. Also, the 75A is not recommended, its stated as the max for 20 secs dude. There are so many factors that may have caused the failure, I am sure we can sit all day and ASSUME. However, we will realise that the truth is not easy to find. You just have to walk away and move on. Speak with the vendor, that is a good start.

Also, you need to note that Tze Law's set up (APC 19x12) is with old packs and the WOT is 75A or so. Danny's set up (APC 19x12) with fresh packs is already pulling 85A. So what do you think about your set up with a 19x13?

Here is the motor my get back from the professional wiring man.

the bearing .... one side cover missing ....

The wiring man tell me the problem from here ... the wire area and main shaft loose, just use hand can pull out the 2 section ...
Some other motor design they got use special machine to press the shaft in ...

Let point out the problem .... According the wire man, he say is because of the shaft original is too tight, so factory guy just sand the diameter to smaller size, then they apply guel on that area, when the motor become so cool then the guel started to melt, that why the motor loose and it touch the metal area, end up burn the motor and ESC.

This is the wire area, you can see clearly the guel inside the hole.

The wire man also tell me that this motor can not be back mounted, it much be front mount, when motor become hot it will loose and if back mount it will move forward, so this design is bad.

So for me I dun know it's because of my luck is bad or the design problem????????

ivanwhlee, Well it looks like someone tried to remove that bearing with a sledge hammer! Listen, we all make mistakes. Unfortunately, sometimes "price" gets in the way of when
trying to make an informed decision. A couple of years ago I bought a Dualsky outrunner motor thinking it was capable of "doing the job". It failed after 106 flights! Now, you would have thought that I would have learned but NO, after going back to my Axi 5330 FAI motor for a few months, again I was tempted by the cheap Turnigy motor thinking it
could "get the job done". I've learned my lesson, NO MORE JUNK! This is why I was not surprised with your findings. tianci, to answer your question above, my statement related
to the Turnigy motor was about one or two of the electric pattern gurus here in the U.S. jumping on me in the original Turnigy SK motor thread earlier this year. My statement did
not pertain to you. My Neu F3a motor will be here in the next 2 weeks! I wish you both continued success & if I can help in the future, please let me know. Regards___TNWalker

TN ... I did not mean your statement was related to me, I was just curious, heheheheheee ... you know how many pros there are out there.

Ivan ... I really don't want to say too much here as I am no motor design expert. All I can say is too many people say too much. Everyone seems to be an expert. To be fair the failure may be because its a one off lemon. Things like that happen.

However, a wireman's opinion may not mean much bearing in mind he is not a motor designer. As you say he is a wireman who wires motors. Can you try to further explain what do you mean the shaft is too tight? It sits on bearings. What is touching what and what burnt?

As for the bearing shield, its to ensure that the bearing is shielded against dirt, does not automatically mean no shield is bad, there are bearings which do not use shields and that is good for certain application.

Pertaining to back mounting or more appropriately called radial mount, in theory all outrunners are lousy for back mounting. Hot or cold. That is why they have a C clip and an extra collar to ensure that it does not move that much. Did you use a collar?

All I can say is you made one VERY BIG MISTAKE. Now how are you going to try to claim any warranty? Like I said, it might have been a lemon. Next time, maybe its best to be more patient and not be an eager beaver my friend. Now how will you be able to take that back to the LHS or the manufacturer? Sometimes it pays to be a little more patient.

If you had a BMW Z5 and there was some issue would you take the engine apart on your own to find out why first?

tIANCi, Well put!____Regards, TNWalker

TNWALKER , i am too interrested with the NEU-F3A motor with gear box , as i have email them 'Steve Neu' with several email but no reply ............

where do you order them ??

huison2005, Castle Creations is handling the retail sales of the NEU F3A motor. Contact Christie at 913-390-6939 or you can e-mail her. The price is $489 USD plus shipping.
Expect a 5-6 week waiting period. I also wish you future success. OK tIANci, when are you going to place YOUR order! Regards_____TNWalker

TN ... I am not into such planes as I do not fly as well as Huison, he is into F3A unlike me. I just sold my MidWest CAP 232 and am thinking of the GP Cosmic Wind Minnow for 10S EP with a Hyperion 4035 series if it can turn a 13x10-14x10 at high RPMs. I got the Hyperion 4025 for my Sebart Angel and am happy with the performance, its cheaper than an AXI and Hacker but seems to perform well for me. I am still thinking about it. Am worried about the high wing loading with my 5S 4,900s. What's your next project?

tIANci, I'm in the process of building (from a basic kit) a CA Models Genesis. My plan is to fly it on or about April 1st! Building takes time if you care about the end result. I've had/flown a couple of "shake & bakes" the last 3 years and found they were NOT the answer! So, I'm back to building. At least you know what you've got & have no one to blame when your new plane does fly. I was fortunate enough to get a couple of really light kits, so we'll see. In the world of Pattern, it does not matter what you build or buy,
YOU have still got to fly it! Regards____TNWalker

TN ... pattern is not for me, I do not have the discipline and patience. Speed is more to my liking, its my cuppa char. Looking at the above motor I wonder what actually burnt? Sad to see a nice motor let go so quick. I read many postings about AXIs too, they throw magnets etc when pushed too hard. One we suspect is heat, ambient temp here is about 30*C so some props that you 'white people' use cannot be used in Asia, like the 4130/16 on 6S is great with a 17x10, here it will kill the motor, needs to be a mere 16x10. Maybe we need to migrate to your side!!! You got great weather and can fly all day ... I envy you all!!!!!

tIANci, It would be difficult for me to determine what caused the damage/failure to this motor wihtout actually examining it. There appears to be a slight amount of discoloration
to the copper windings in the above pictures. The magnets appear to be intact with only a minimal amount of scuffing/normal wear & tear. My good guess is that basically it was
defective to start with or it was over propped which in turn causes excessive heat & ultimate failure. Again, this is all speculation on my part & not from one who knows definitively. After runnning the AXI's for 3 years, I found they too are not without their faults. You all are more than welcome to migrate to the U.S. As for the great weather, we experienced 17 degrees F last Sunday morning here in the great state of Tennessee! It's gotten warmer since & we all hope spring is here. Regards_____TNWalker

Tennessee ... HEY! I spelt it right the first time, I did have the correct number of Ns and Es!!! The place for Elvis, Country Western Music, Appalachian and gin! Hahahahaha ... looks like you are Outrunner CSI now. Anyways, 17*F is not good. I shall stay here. Its nice and warm all year round. You guys got some nice gin down there right?

I looked at the pics and I cannot tell what happened, guess I am not there yet.

tIANci, Please don't make me change my name to Outrunner CSI! I'm just now getting used to TNWalker.___Regards

Reverend Carpenter, I'm gonna give you an "AMEN" on that one!

ARFs have thier place, kits have thiers too. If it's working for ya, great...if not, do something else! I seem to remember you being quite the builder. I'm looking forward to the new plane!

Have fun,
-Mike

Mike ... when can we have your stuff as a 'long kit' or even better an ARF, I am waiting for that! People speak highly of your plane and I can't build well. If I built one it would look like an X wing fighter.

Well, the problem with a long kit is the shipping. The cores take a lot of space and it's cost prohibitive to ship them internationally. If I had someone on the other end to cut the cores over there, I could do it that way. But so far, nobody has offered

As for ARFing them....the reason why I haven't ARFed them is the same reason I started designing and building them myself in the first place. Quality control. I can't stand the thought of heavy, twisted crap. Not even one. My kits aren't 100% perfect either, but the problems are always minor. of course I can't prevent someone from building 2 left fuselage sides, but at least you can get replacement parts without having to buy another entire kit for instance.

if/when a manufacturer proves to me they can handle my quality demands, and meet my specs for weight/alignment/materials and not screw up even ONE in a nasty way, I MAY consider it. But so far, nope. I have been courted by a couple in the past and almost bit. Looking at what they are selling now as a result, I am SO glad I didn't take the bait. Heavy parts, twisted wings/wtabs/fuses, parts missing, can't even get anyone on the phone or email to help.....no thanks.

Like said in an earlier post, at least with a kit you get what you are capable of. If you're not capable, you're sort of at the mercy of the ARFs and your wallet. if you want quality and something light, strong, straight and flies true, you need deep pockets. It's sad but painfully true. I will say the overall improvement in ARFs is promising, but the common problems with quality control are still there. If they ever get that under control and hook up with some competent desingers, it's going to be a great day!!! For now, Oxai is as good as it gets, and they are neither cheap nor perfect. They have issues like everything else, but they are the best there is in a pre-built airframe. But you also have to know which ones fly true and which ones need help....because some of the designs are good but not great.

Yeah people seem to like my stuff.....or hate it from a distance LOL It is what it is. I design planes for me, that make my life easier, and then make kits out of them. As a result if you build it right and trim it right, it's extremely true with no bad habits. I really had no intention of going into the kit business per se, I let myself get talked into it and it just sort of took off. It's been pretty hard to keep up at times, and I made a lot of mistakes and learned a lot along the way. One mistake I have thus far avoided was letting a company ARF it and send out a bunch of junk. Right now there IS one company that I am looking closely at, but I would probably have to let them ARF the 110 size and they'd have to prove with that they could keep the quality up over the entire run before I'd let them touch one of my 2 meters. So, if it ever is in the future, it's a ways off.

Oh, as for these cheap outrunners? some work just fine, or I have been extremely lucky. I have also been hesitant to share info here because I can't test 10 to see if they are ALL good or just the one. But I can honestly say so far I haven't gotten a bad one yet. Obviously, some have gotten crap, and IMHO, that's expected unfortunately.

-Mike