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Old Mar 12, 2011, 10:55 AM
Registered User
Joined Dec 2010
216 Posts
Alert
Blade mCPx SAFETY ISSUE! PLEASE BE FOREWARNED BEFORE BUYING

IMPORTANT UPDATE (March 24th 2011)

HH has found a flaw in the grip design of the recently released mCPx and has come up with a re-designed grip that is supposed to prevent the blades from flying off if the bearings fail.

Please send it your requests to HH to get your mCPx replacement head if you have the older non-safe part.

From HH:

Blade mCP X Main Rotor Head Replacement Request Bulletin
Attention Blade mCP X Owners

Horizon Product Support has received reports from customers concerning the new Blade mCP X ultra-micro collective pitch helicopter. Specifically, some customers have reported Main Blade Grips separating from the Main Rotor Head. Horizon Product Development has updated the main rotor head assembly and is offering it free of charge to end consumers.
Please inspect your Main Blade Grips. If your helicopter does not have a “B” molded into the blade grips, complete the Blade mCP X Main Rotor Head Replacement Request form below.

link to replacement form:

http://www.horizonhobby.com/ProdInfo...equestform.pdf


If you are interested to read some of the issues with the older non-safe head design, it's documented below:

Hi All,

Until HH takes some more action on this issue, I am creating this posting as a warning to potential buyers. The mCPx thread is moving too fast, and this very serious issue is getting buried too fast even though it is being consistently brought up around the world. This thread will be bumped on a daily basis as it is a VERY important issue. I will be updating this first page with newer real life quote experiences as I come across them. Do check back on this first page daily and scroll to the bottom of posting #1 to see the latest incidents. UPDATE: Post#1 is now out of space and the latest incidents will run into Post#2.

Quote:
Originally Posted by Mister Gun View Post
The bearing that sits behind the blade gave out in my grip. The bearing was in three pieces but the main outer ring remained in the actual blade grip. I had a spare set of grips to compare it to. The screw in the feathering shaft was still in place. The bearing came apart around it.

Quote:
Originally Posted by PaulB View Post
Contrary to my posting this afternoon, the bearing problem has exploded here in Germany. First mention was someone reporting that he had read of the problem in this thread and suddenly several people popped up with tales of gloom regarding exploding heads!

Quote:
Originally Posted by maRRRco View Post
on my country there are some reports of blades come away in flight just out of the box, and not one episode on hundred, but 2 on 5
and in some case this fact caused hurts !!!
i don't know how to think, rather i know but .... it's better wait some reply

Quote:
Originally Posted by McMoron View Post
Another casualty

Warning, explicit graphics! Ok, maybe not, but a close call I would say.

http://www.modelflyvning.dk/forum/sh...667#post429667

So STOP buying these helis! (I missed the first shipment, and don't wanna miss the next one too! )

On a serious note, HH should supply a leaflet explaining the need of loctite and/or safety glasses until the v1.1 is released.

Quote:
Originally Posted by Donaldsneffe View Post
I am quite shocked now.
....
I knew, I should check the blade grips before or before first flight. But I did not want to make the first flight now, I only wanted to check, if everything works.
Strange:
No throttle: the two swashplate servos get back to zero position, if I put the sticks in zero position.
But with throttle/gas, the servos do not follow the stick position, they stay in the position the stick was moved, only if you move the sticks from zero position to the contrary position, they go to zero position???
But then the shock:
Did not give much throttle, maybe 30%. After maybe 1 or 2 minutes at all, suddenly one blade flew away!
It flew between the screen of my notebook and my face, maybe 10 cm of my face (I held the heli in my hand).
The blade did not hit anything, not me, not the screen of the notebook, not the aquarium 1 m away, ...
Good luck.
But now - I am really shocked. This was extremely good luck.
I knew, I should have checked the blade holders - but this was only a trial, only test, only low gas.
The blade flies away, 10 or 20 cm away from my eyes...

PFFFFFFFF
I will check the heli now...

Walter

Quote:
Originally Posted by Donaldsneffe View Post
Hmm,
Blade says, there are no problems with the blade bearings:

http://support.horizonhobby.de/quest...he+Information

(German)

But my heli was brand new out of the box, never flew, was only hand held - and lost its blade.


Quote:
Originally Posted by bublehead View Post
Ok,

I am not a happy camper...

I just picked up my MCPX tonite and programmed my DX6i per the manual, charged my first battery, plugged it in, bound it to the Tx, then held the little bird in my hand and ran the throttle up. I was sticking some inputs to see the thing work and all of a sudden, without warning, a blade lets loose and comes withing an inch of taking out my eye.

The blade and grip richochetted of the wall and as I hit throttle hold, I nearly dropped the bird because my finger came across the rear servo (yes servo) motor which was red hot.

I was holding it by the tail boom and my finger just came in contact with the little motor and this thing was hot enough to make me want to let go!

Whats left (after changing my shorts) is a blade grip with no bearing in it, a feathering shaft with the bearing still on it, but the bearing itself looks like it's seperated. No hardware looks to be missing on the feathering shaft, but I have no clue if it could or should go back together, because just pressing the bearing back into the grip does not make the whole assembly tight like it was originally. It's like the feathering shaft is too long now and the grip can pull away from the rotor head about a 1/16th of an inch. Not that I would trust this grip ever again, but just looking at the mechanics of the shaft and the bearing, exactly how is the bearing held in the grip? Glued in?

And the servo motor being red hot... I'm not sure the quality on this bird is on par with my mSR's or my SR120. Definitely going back to the LHS tomorrow.

Worst part, though? I didn't even get to fly it!!

Not too impressed right now. Throwing a blade seems a bit dangerous for a indoor bird.

Good thing it was only my eye and not my 55" LED Samsung TV

Stay gripped, my Friends...

BH

Quote:
Originally Posted by pappy1 View Post
M8 i thinking of just throwing my two mcpxs in the bin,my m8 was going to buy the mcpx today but after reading and see my blade grip fail he choose not to.wise choice i say for a few minutes of fun you have a good chance of loosing your eye sight,man im spewing i bought two of the pos.


Quote:
Originally Posted by Tahoe Ed View Post
I don't think that it is the bearings. I think that the feathering shaft and the screws that attach the blade holders are too small. The forces are to great for the threads to handle, even with locktite. My feathering shaft was tight as were the screws and yet the screw failed and the blades with the blade holders flew. Time for a call to HH.

Quote:
Originally Posted by jabsten View Post
Well after 5 flights and loctite on the feathering shaft screw, both my bearings blew out. Which trex part number are the bearings for the 250? I am so pissed. My blades flew off at ground level and shot across the room. I now have no working heli. Bummer.

Quote:
Originally Posted by noobiznessflying View Post
Well I guess the inevitable happened...
Bearing failure on my 10th battery. Blade grip came flying out, fortunately away from me.


Couldn't wait for parts to come so came up with an idea. Grabbed spare blade grips that I had for my FBL converted Walkera 4g6s I modded months back and slapped it on the MCP X. Had to drill another hole through the grips to attach the swash links. Voila... a "walkerized" MCP X!

So far so good on flights. Have not done any hard acrobatics yet but so far flies pretty well despite the modded blade grips. Has a slight vibration on take off but I can live with it.


Quote:
Originally Posted by Frank_fjs View Post
This video seems to highlight the bearing problem well:

http://www.youtube.com/watch?v=szT__Zkl1Fc

If you watch his other videos, you can see that he is no beginner and knows how to fly CP.

I fear that there is a serious problem here, one that many are ignoring, and that with more use failure may be imminent. Be careful guys, don't be lulled into a false sense of security just because your bearings didn't fail on the first few flights.

Quote:
Originally Posted by Oenta View Post
Alright... i am going to try that... i got a spare featheringshaft set. My blades also came off in normal flight. Also in FFF against the wind.. my mcpx is going to vibrate really badly. But when it travels off the wind.. it doesnt.
Thats why i dont think my featheringshaft is bend. probably bad blade balancing? my blades already have some little cranks on it, so i will try new blades also. Anyone got a clue? Also maybe... what causes the vibrating.. i connected my ball links with a small wire (less earodynamic), to stop flying off and loosing my links.

HH should really look into these problems.. especialy the flying blade thing! ITS DANGEROUS.. HH send us a free upgrade! If 1 or 2 people had this problem.. wel ok... bad luck for them... but many.. many people have had this problem already.

But someone please answer my question on the FFF windy vibrating problem.

Greets,
Jeroen

Quote:
Originally Posted by bublehead View Post
This does nothing for bearing failure... which is what I experienced on the first spool up while holding it in my hand. They got a bad bunch of bearings, or they are installed wrong or both.

Either way I'm opting out of CP-ville for now. My mSR doesn't try and put an eye out every time I fly it... Hoping the LHS will give me store credit and send this back to HH.

BH

Quote:
Originally Posted by turkeylord View Post
I seem to have caught a bearing just before it was going to fail.

I flew one pack (just hovering) through my mCP X straight out of the box with no crashes, blade srikes, or anything like that. Afterwards I decided to dissasemble the head and check things over.

What I found was that the feathering shaft screw was about 1/2 way out, and when I went to put a flathead on the spindle end, the ball cage fell right out of the bearing. This of course allows all the balls to shift to one side and the bearing just falls apart, essentially the revese of how they are assembled. Nothing to do with the ultimate strength of the bearing, once that cage is gone it will fall apart under it's own weight, no wet hiking boot needed. I'd imagine this is this the cause of the failure reports where the inner race is left behind on the spindle shaft.

The advice to put the bronze side out can help here, putting the cage towards the main shaft. The forces applied while the head is spinning will help keep the cage in place.

For those unfamiliar with bearing construction, this is called a Conrad bearing: http://en.wikipedia.org/wiki/Ball_bearing

I ordered some replacement Align bearings, but for now I'm grounded after one flight.

As always, be careful everyone!
Quote:
Originally Posted by kmk View Post
Yep, it was predicted after 20 flights the bladegrip shot away during spool up result was a bent spindle and a cracked blade.
I might be able to get the bearings refunded in my LHS but I don't think they are gonna refund the spindle and blade though
Grounded untill I get Trex 250 bearings

Grtz Rudi


Quote:
Originally Posted by grnbrg View Post
My LHS was having problems with their demo unit yesterday -- wobbles they couldn't identify...

It turns out that when they had a bearing failure earlier, one of the bearings that looked like it hadn't failed (Perhaps the hub side bearing? Not sure.) was missing the balls. It looked fine until it was examined closely.

You might pull all 4 head bearings out, and have a look at them. Especially if you've had a previous failure, or even a rough crash.


grnbrg.

Quote:
Originally Posted by norstaroption View Post
I was going to buy one yesterday at my LHS but there was another guy there already complaining about one of the blade flew. He loctited the screws but the bearing broke off.


Quote:
Originally Posted by Acorns View Post
Wow, second flight out of the box and a blade flies right off. Scared me quite a bit; the blade hit my mid-section but couldn't do anything through cloth. The blade wasn't even damaged; or the rest of the heli, as far as I can tell. The little golden part of the bearing is missing, but the silver part stayed on, along with the screw. Naturally I can't find it, so the heli is grounded until the out-of-stock-everywhere bearings can be found.

I would take it back, but the hobby store I bought it from (the closest to me) is 3 hours away. I will see if there is someone I can contact.

Here is a quick photo I snapped of the remaining part of the bearing, and the two blade grips (one with bearing in tact, one missing a bearing)

http://www.rcgroups.com/forums/attac...mentid=3862723

.

From HeliFreak Forum

From HeliFreak Forum

Quote:
Originally Posted by shadowreader

http://www.helifreak.com/showthread.php?t=287012

Bad News Bearings Please Read!!
From HeliFreak Forum

Quote:
Originally Posted by superjet112x

From HeliFreak Forum:

Quote:
Originally Posted by ifly_65

http://www.helifreak.com/showthread.php?t=286978

Blade Leaves MCP-X Bad Bearing!

From HeliFreak Forum:

Quote:
Originally Posted by jaydekay

http://www.helifreak.com/showthread.php?t=286923

Tips to avoid ejecting your main blades

From HeliFreak Forum:

Quote:
Originally Posted by Skyroo

http://www.helifreak.com/showthread.php?t=286236

WARNING! Potentially very dangerous quality problem !!!

From HeliFreak Forum:

Quote:
Originally Posted by Roblucky13

http://www.helifreak.com/showthread.php?t=287012&page=4

Bearing issue

I just got my mCP flying and had the same issue with the blade grip ripping off and the spindle still screwed in. Damn that is dangerous!

From HeliFreak Forum:

Quote:
Originally Posted by sonnyhad

http://www.helifreak.com/showthread.php?t=287012&page=4

I just had the same thing happen. Not a good thing! I couldn't find all the parts and one of the blades hit the wall hard and cracked!

From HeliFreak Forum:

Quote:
Originally Posted by andypants

http://www.helifreak.com/showthread.php?t=287012&page=3

Yep - happened to me. I noticedit on the ground. The guts just ripped out of the bearing closest to the blade. Lucky I noticed

Quote:
Originally Posted by andypants

In the interests of full disclosure, the first bearing failure was (very luckily) detected on the ground. The second bearing failure nearly removed my face - the first merely had the direct potential to. It's important I give the exact version of events with no hyperbole and I'm sure HH are reading these and I don't want to be unfair.


Quote:
Originally Posted by CrashMeUp View Post
Just to bring my own "+1"

I've had the same issue after a couple of days, even thus i have verified the bearings before flight.

I fear HH should actually make a recall / large fix on that one.. In my case there was no danger, as I was aware this might happen through RCG forums I've been extra careful as if it had been a bigger heli (still the blades flew off pretty far)

Mine is a German mcpx, btw

ps: what is the most recommended way of "fixing" this so far, loclite ?
or that: http://www.horizonhobby.com/Products...odID=AGNH25060
or that: http://www.helipross.com/align-t-rex...1x-h25060.html

Quote:
Originally Posted by Chuck Yeager View Post
My blade grip pulled away from the spindle just as I landed and ended in a quick dead chicken dance. It threw one of the bearing out of the blade grip and washers off the spindle (never to be found). Are the screws in the spindle way too short?

From HeliFreak Forum:

Quote:
Originally Posted by Starcruiser

http://www.helifreak.com/showthread.php?t=286987&page=3

Got mine on Saturday and took apart the head prior to even powering it up. The LHS owner had one and lost the grips on the second flight, the screw in the feathering shaft is not locktited. I took care of that and oiled the bearings lightly (Tri-Flow).

Quote:
Originally Posted by From Yahoo! Answers

What is the difference between the two blades for the blade mcpx?
i got the new mcpx helicopter and the blades just came flying off! weird. well anyway the spare blades i got had this little spike coming off the side. but the old ones didn't whats the difference between the two???

http://answers.yahoo.com/question/in...3121104AARGSqS

Quote:
Originally Posted by twoplanekid View Post

This is my story on a bearing failure. On the advice of people from this form and after the 9th flight, I added a Crest glide dental floss safety rope for the blades. The mCPX seemed to fly fine with it in place. On the next battery, as I was coming in for a landing in my small room, testing area, I hit throttle hold as I was headed for a chair leg. What occurred was a minor hit under very little or no power.

Upon examination, I found the following. The feathering spindle screw had come loose and was being held in by the dental floss. No big deal as I would add thread locker and secure. It was then that I noticed that the cap on the bearing on the other side blade grip had almost completely separated from the bearing. The cap was on the side facing the blade.

The following sequences of pictures tell the story.

http://www.rcgroups.com/forums/attac...mentid=3865654

http://www.rcgroups.com/forums/attac...mentid=3865655

http://www.rcgroups.com/forums/attac...mentid=3865656

http://www.rcgroups.com/forums/attac...mentid=3865657

Quote:
Originally Posted by alucard0822 View Post

...

I just kinda assumed it would be as durable as the mSR and SR120, turned out not to be entirely the case. I flew a couple slow circuits, and after a couple packs hand launched it inverted, managed to hold it for a minute, but then lost it, and dumped it in the grass, broke the feathering shaft, swapped in the spare, and flew again. Next, I was flying around fast, knew I was getting into trouble, and hit throttle hold, dropped it onto the grass pretty gently, and ended up separating the outer bearing on one of the grips. Luckily I wrapped some thread between the grips, so it stayed together, ....

Hopefully this heli can teach me a lot, and can translate skills, orientation and feel into my larger CP helis.

From HeliFreak Forum:

Quote:
Originally Posted by icerat4

http://www.helifreak.com/showthread.php?t=287012&page=6

Well bearing is shot. they better watch this one as someone is really going to get hurt. It has been noted here. Please some one make a vid on replacement of the 250 bearings so us with less experince will be able to do this. Thank you. O i will have picks on this soon. Spooled up the heli and bam the grip just tore away from the bearing. Note these were seated at the beginning of the flight just fine. Wobbled like crap and then bam right away . Lucky it was just lifing off. I notices the wobble thought to shut down and bam on shut down.

Quote:
Originally Posted by f2000ez

http://rc.runryder.com/helicopter/t636411p1/


I was checking the swash plate on my new Blade mCP X after talking to a fellow flyer here in VA. I got to 50% power holding the heli in my hand and wham...
The blade and blade grip failed. The bearing disintegrated on the slotted side of the feathering spindle.........

Be careful



Quote:
Originally Posted by fa9elnet

Another Web Video

http://www.fa9el.net/video/a49b8eac60c3413ddff

MCPX Repair
It only cost me 8 for the parts to repair my MCPX after the bearing failed in the head.


Quote:
Originally Posted by jschief

http://www.rchelimag.com/forum/print...p?t=7939&pp=40

I agree with team222badbrad, the heli flies fast. I have flown in the apartment, I am not that good. After 8 flights I have broken a blade grip. The bearings pulled out, once that happens blade grips are useless. I have not broken any blades yet, the links do pop off easily.

Waiting for blade grips to fly again.


From HeliFreak Forum:

Quote:
Originally Posted by Souskei

http://www.helifreak.com/showthread.php?t=287012&page=8

i got a story for ya...

i bought my mcpx a few days ago, and last night was the first time i took my mcpx out for a flight. So naturally excited i gathered my fiance and her 5 year old son to see the maiden flight. charged up both batts and not it off the ground.

i hovered it for about 30 seconds at eye level because i wanted to check the tracking and then BAM.

the blade came flying at me hitting me in the tip of the nose and upper lip causing a little bleeding.

Quote:
Originally Posted by brantsfgds View Post
I got my brand new shiny heli over the weekend. I got to experience the bearing failure while holding the thing about 6 inches from my face! The feathering shaft was tight, inner race pulled through. I checked the other bearings and they are sloppy. Picking up TRex bearings tomorrow. Crazy little thing flys good, though.

Quote:
Originally Posted by basmo View Post
Yes, I called this past Saturday, my blade grips flew off two times! In both cases, the spindle screws were tightened. Horizon told me they had a 'team' meeting on Saturday and knew about the issue. Not sure what will be decided. Still trying to find out which way to install the new front bearings, if it makes a difference. Have the Align ones ordered, not yet received...


Quote:
Originally Posted by DriveWRX

http://www.helifreak.com/showthread.php?t=287800&page=3

I had several flights on the stock bearings with no problems. I did make sure the brass sides were facing the blades, though.
After seeing a stock bearing failure personally (on someone eles's heli), I switched to the TRex bearings, just in case. Many flights later and all is good.



(Does this indicate that there may be more issues with the head design apart from the stock bearings? This is the first kind of posting relating to a failure of the Rex replacement bearing. I hope this isn't the case. )

From HeliFreak Forum:

Quote:
Originally Posted by andypants

http://www.helifreak.com/showthread.php?t=287800&page=3

Had the Rex replacement fail last night. I'm over it - gonna lap down 0.5m or whatever in the grips and slip a washer in there. IMHO this should have been done in the first place.


Quote:
Originally Posted by tommythecat View Post
So it just keeps getting better. The tail cuts out when trying to pitch out hard inverted. Now the ball seperator fell out of my one outer bearing. I noticed the heli started to shimmy hard periodically, so I pulled the feathering shaft only to find that the ball seperator came out of one of the bearings. Both the outer and inner races are still in, but the ball guide fell out and now it is no good.

I loved this thing while I flew it, but I only have maybe 10 flights on it and it is down. I'm guessing the bearing issue was accelerated by the crashes today, but those were caused by the tail stopping mid flight, so I don't feel responsible.

Good thing Horizon has great support, too bad they are nearly impossible to get through to right now, probably due to the mcpx issues.

Quote:
Originally Posted by tommythecat View Post
Mine went on the phillips head side. The cage came out but the races and balls were still in place. I imagine that it would have failed catastrophically if I had flown it longer rather than land immediately and disassemble.

From HeliFreak Forum:

Quote:
Originally Posted by z3billy

http://www.helifreak.com/showthread.php?t=287800&page=4

My blades let go 45 sec out of the box...I replaced Blade holders (come with bearings) spindle shaft and brass washers and blue locktight on the one end spindle screw...i have smacked it here and there on the carpet and hit throttle hold....but it takes off beautiful hovers fine and is quite responsive...not a noob unit...I have had no further trouble at all with anything about it

From HeliFreak Forum:

Quote:
Originally Posted by Jumna

http://www.helifreak.com/showthread.php?t=287800&page=3

A blade grip failure is one of those rare times when it's nice to wear glasses! Mine failed as the poor heli was directed into a dogwood while upside down, but at least it barely separated and only the ball bearings were thrown out. Man, I'd hate to be looking for those minuscule things the grass. New trex bearings in and all is well so far.

Quote:
Originally Posted by rustypep View Post
I just happened to stumble into this forum. I picked up my mcpx on Friday. The UPS guy just happened to show up at the LHS while I was there looking at other options on my lunch break. I decided to make this my first CP instead. I got maybe 15 flights in and was hovering most of the weekend with light contact with a few things. I was actually pretty proud of myself! I got caught in the vortex thing on the last flight and I just powered down as it was heading for a rug tilted slightly sideways and it was just enough contact with the blade to cause a failure. The picture posted by Acorns in post no 19 shows exactly what mine looks like except that I couldn't find the pieces. I can't blame mine on HH but it sounds like there is definately a weakness in this area. My first heli was the MSR and it got the usual newbie treatment. I was always surprised how much punishment it took without breaking. The only parts I ever broke on it was the LG and one set of blades. The LHS only had a spindle and no grips in stock for the mcpx so I guess I will have to wait it out and order grips from HH. I did pick up the only LG they had. I figured I would break it before long

To answer mediclivina, I did check to make sure the grips had no play before the first flight so I never took the blades off to check the tightness of the screw. The screw was still in one piece post crash. Looks like the MSR will be getting some air time again this week.
From: Rcuniverse.com

Quote:
Originally Posted by Chopper Chuck

Got a mCPX on Friday. Was hovering it in the living room and a blade flew off and sliced through a very heavy duty lamp shade like a steak knife through hot butter! A buddy also purchased one this weekend. He's new to CCPM and wanted me to assist. I checked his out prior to the maiden and found a blade totally loose. I was able to pull the blade grip right off of the feathering shaft with no effort! The dealio on this is that the bearing assemblies are separating and sliding right off of the feathering shaft! As a side note, the feathering shaft is also inadequate in MHO. There are screws (a Phillips on one and a standard sloted on the other) holding on the grips and they are so insubstantial as to afford no margin of safety in the event of a bearing failure, which is immanent! I spent an hour scrounging rhrough parts at the LHS and found bearings from a Lama & a feathering shaft from a Walkera that will totally solve this issue. Got more on this topic, but need to wait a bit before going there!

http://www.rcuniverse.com/forum/m_75...m.htm#10399354

Quote:
Originally Posted by Pogonaro


[ROUGH GOOGLE TRANSLATION]

Just jack ... begins to hum a servant and that's something I think is wrong .... try again to hold it still and still nothing .. ribindare hum, oh well I think it might be normal, I find that even if I set the radio to manual gas Controra I go in a few words, no salt, I sped up more and I jumped all away
Guys this thing is dangerous, but bad if I took a shovel in the face who knows how it goes ... I am blown away but the blades are not unscrew from fivine you are right .. detached the arms and the two blades that have a pin s'immaschia that hath been among them marched and am blown away and my son chipped a nap.

I'm sorry but as it stands is dangerous, call Alex Modelmania tomorrow, I explained the situation, I gle I do back is not a question of money, that's no problem, but a thing so small that I was so afraid I just do not want the house.

I do not know what difference there is scary but what a buzz than msr.

READ WELL, IF YOU WERE TO GET AWAY WHEN YOU DO THE TEST, I WILL BE NEAR THE I did and I have shXit on me ... sorry for the outburst but when we are there is, stuff that I do the test with his wife or daughter in the area and for a little thing like a cable's eye ...


http://www.baronerosso.it/forum/elim...-mcp-x-94.html

Quote:
Originally Posted by minorcan View Post
it must be mentioned again that there is a serious defect with the mcpx with the blades coming off. i bought one three days ago and as soon as i put a little power to it one balde came flieing off. took it back to the hobby shop and they replaced it with another one. well, it happened with the second one too. taking it back today. i doubt if they will take this one back but everyone should know about this problem.

From HeliFreak Forum:

Quote:
Originally Posted by fufanu

Blades a flyin

Ok, If I posted this in the wrong place please Moderator put it where it needs. I posted last night after my first three min. in the blades went bye bye. I had no idea what I was looking at and what was missing. Greg got me straight on the bearing poll thread (thanks). Anyway I thought I should at least call HH and let them know what has happened, as this surely isn't something they would let the public figure out for themselves. (at least I was hoping) I called and the guy was very nice and said that they are working on a fix and should have something in a day or two. They ask that I not get new parts or try to fix it as they are concerned that there could be defects. He took my name and number and said they would get back as soon as they have it figured out. By the way, it doesn't look like I had a bearing problem, looks like I had the loose spindle bolt deal. Anyway, It seems they are concerned and they were very apologetic so I think their getting the message. I would encourage anyone having any separation issues to call them, I think that will help expedite things as they are nervous about this. Sorry if I've repeated this, I didn't see it in any threads I've read..

Good luck

http://www.helifreak.com/showthread.php?t=288089



From HeliFreak Forum:

Quote:
Originally Posted by Peteren

http://www.helifreak.com/showthread.php?t=284865&page=3

Thrust bearings for the blade grips, mine spat a grip last night, inner race is still on the feathering shaft and the outer race is in the grip, bearings are ?????

Alloy swash plate, the elevator ball breaks off if you hit TH and the heli lands hard on the skids

A module to plug into the brain so my reflexes can be upgraded to keep up with the damn thing

Quote:
Originally Posted by pgomol View Post


Just got my mcp x last night. 10 minutes flying, no crashes, blade flew across the room. Screw intact, bearing failed.



From HeliFreak Forum:

Quote:
Originally Posted by mitchly

http://www.helifreak.com/showthread.php?t=288052

Sorry to be a naysayer but with the copper color facing out my blade still flew off leaving the inner race on the feathering shaft and the outer race in the blade grip. I checked the orientation during the preflight. Please be careful.

From HeliFreak Forum:

Quote:
Originally Posted by rcnuttz

http://www.helifreak.com/showthread....287012&page=16

I was spooling up and the head blew a part one of the blades hit my son in the head

I've been reading about it all morning since I talked to HH they know all about it and posted a bulletin on the web site no fix for it but its being looked into he also told me about the spindle shaft bolt being loose and needs to be checked

HH has GREAT customer service was very helpful today on the phone but this thing is dangerous no matter who flys it! should not be flown with kids around and use just as much caution as you do when flying your larger heli's I personally thing EYE protection is a MUST! the blades will only nick or bruise your body and face but one of those blades hits an EYE its going to cause harm




From HeliFreak Forum:

Quote:
Originally Posted by Spanishcop

http://www.helifreak.com/showthread.php?t=288204

Just for info, when mine blades flew off, no I had not done that to the bearings.

I did lock-tite the 2 screws on the feather shaft. When I located the smoe of the parts, I found my feather shaft still had both screws in it. The feather shaft ripped through the ball bearings.

After talking to the hobby shop about the problem and looking at the ball bearings, an assumption was made that due to the High RPM of these blades turning... the bearings are not able to withstand the force.

The copper was shredded obviously in the bearing I found. I was very fortunate that one blade hit the wall and the other hit the side of the tub in the bathroom. Given that a min previous to that I was hovering at Eye Level !!! Thank GOD it did not happen then. I'm very fortunate... I returned my Heli... and will wait until these bugs are worked out before I attempt this again... I have too many nice things in my living room to chance this again or another problem.

Surfing the internet, and I can't recall where I seen this.... I had read somewhere that RPMs were around 2600 possibly. NOTE that is just something I read somewhere.

Mike

From Horozon Hobbies own website:

Quote:
Originally Posted by DaneGer83184

http://www.horizonhobby.com/Products...580#reviewsTab

Literally the first minute of the first battery with no tip overs, no blade strikes, nothing and next thing i know a blade flies off causing a crash at a 3-4ft hover. Checked out the damage and noticed one of the bearings inside the blade grips blew apart and the center race was on the spindle and the outter race still in the grip. Not sure if it was my luck or what...

From Horozon Hobbies own website:

Quote:
Originally Posted by Jeff7983

http://www.horizonhobby.com/Products...580#reviewsTab

this heli seems awesome and fun. when i got it flying the controls were crisp and fast. i did find it a little difficult to program my dx7 because the rates were not clearly labeled. i had to do some trial and error. i had not got about three cycles through it when the rotor went flying, ( yea the heli only fell a few inches when it crashed). on inspection the ball-bearing and bushing components in the blade clamp were in several different pieces. the screw on the main shaft the holds the clams on were still tight. the insides fell apart the it slid off over the screw. I know its a new product, i hope this is helpful to work the bugs out. great heil when it was flying.

From runryder website:

Quote:
Originally Posted by bfaulguy

http://rc.runryder.com/helicopter/t636411p1/

Call Horizon. I just sent mine back for the same thing, this seems to be an issue with many of the MCPs.


From Horozon Hobbies own website:

Quote:
Originally Posted by Anonymous

http://www.horizonhobby.com/Products...500#reviewsTab

Bearings in blade grips have failed twice in less than,8hrs,bearing is seperating from race, needs brass bushing instead of bearing, please fix this problem, overall though this is a really fun heli for the house!!

From Horozon Hobbies own website:

Quote:
Originally Posted by rcuhydronut

http://www.horizonhobby.com/Products...500#reviewsTab

This is a great litle heli. While it flys very stable there is one main complaint i have with it.While flying it today I have had on of the grips come flying off caused by one of the bearings race coming apart. our local hobby shop has had this happen 3 times that they know of. I think blade may want to replace the bearings with a oil lite bushing to cure this failure from happening.

Quote:
Originally Posted by ForceFedDSM View Post

Well I have noticed that my head speed is the same from 60% to 100% throttle so I decided to check what the rpm was and my blades flew off. My bearing exploded and they were installed with the copper side out. The feathering shaft was still assembled and the inner race stayed on the shaft. I did get some head speed readings and it was 4067 from 60-100% throttle. I put some align 250 bearings in with a walkera feathering shaft and now all of the head slop is gone. With 4 align bearings installed there was some binding in the blade grips so I put the stock bearings back in the head block side of the grips. I haven't had a chance to try it again, but I'll be calling HH about the problem tomorrow.

From HeliFreak Forum:

Quote:
Originally Posted by dezrat27

http://www.helifreak.com/showthread.php?t=287800&page=5 post#48

First day (thursday) I had one fail, after gingerly scraping the wall in my apartment. After looking at everything the bearing was backwards, fixed that with new grip. many flights later (lost count) like sunday night I went to fly and the blades felt loose or wobbly.spindel was tight. I placed the heli in my kitchen and hid behind the wall and spooled it up anyway. bang not even quarter stick bearing fails, replaced the bearing only. today took it to the park flew great, inverted bringing it down to eye level the blade goes sailing. bearing fails again.

Three bearings in six days. I have been flying this thing a lot and enjoy its quarks minus the blades shooting at my face..

Quote:
Originally Posted by Donaldsneffe View Post

Of course HH knows about the problems and that it is not always caused by crashes.
Do not know, why they do not admit this fact.
Yesterday even the heli-guy of the (very big) shop I bought my mCP x told me on the phone, he had the same problems. A blade came loose and hit his breast.
Do not think, big shops selling the mCP x in high quantities wont complain at HH.

I do not like the statement HH has published on it's German site (BTW: I have corrected those Google translations in the main mCP x thread some days ago, but this thread is that fast growing, guess nobody can follow all posts), the more, they only do publish comments of customers which are positive. I also made a (very polite, in my opinion objective) comment last Friday, even made very positive comments to the mCP x, but also wrote, that my broken bearing and blade coming off was not because of a crash, was out of the box).
Those comments are not published - and that is something strange - either publishing all (serious) comments or none, but publishing only the comments good for the company is kind of not serious.

Walter

Quote:
Originally Posted by Pakoenig View Post

I blew out an inner (screw side, not shaft side) bearing. My inner bearing was installed with the silver side toward the screw and it failed with the inner race still on the feathering shaft. Luckily I was spinning up at my workdesk and holding the heli. The blade only grazed my shoulder. Surprise !

Then I discovered the chatter on the forums. So repair/upgrade time.

Tried to get the Align bearings, but nothing locally. So I took a chance and bought another set of E-flite blade holders. Based on various postings, I removed and reinstalled the inner (screw side) bearings with the copper showing. So far no problems. And I've been flying it much harder and with more crashes (sigh ...) than before when i had the failure of the factory configuration.

So, I guess for now I vote to have the bearing installed with the copper side showing. It's working for me so far.

From HeliFreak Forum:

Quote:
Originally Posted by fusionsx00

http://www.helifreak.com/showthread.php?t=288364&page=5 post#41

I was picking up some stuff at my lhs, and the guy there keeps on raggin on me , asking me if I wrecked my mcpx, and I asked if they have had a blade ejection yet, he smiled and said no its just abunch of people who crash them and don't want to take responsibilty.

So I asked if he could fly his stores demo for me to see how it was holding up, at first he said the batterys needed to be charged, but he found one,

He got it up about 2 feet inside the store, and it happened, the blade flew off hit the wall
missed another store employee by inches,

I just laughed and said, now what do you think about bearing failures, and he started to say well I've crashed it a bunch of times it was because of that.

He said he is sending it back to hh, to have them look at it.

From HeliFreak Forum:

Quote:
Originally Posted by CompGuy

http://www.helifreak.com/showthread.php?t=288364&page=5 post#42

Bearing Failure Caught in Progress


Hi All,

Just got my new toy. What a scream!

Crashed 3 times, each time I carefully checked the spindle. 3rd time it seems looser than when I got it. Put it on the bench, pulled the blades. BTW, outer bearings were silver out, inner bearings were silver to main shaft.

Well there was a tiny flicker of silver I spotted. The race was just starting to pop out! It came out completely when I touched it with the screwdriver trying to undo the spindle.

Not sure if this is anything new,

Cheers,


Quote:
Originally Posted by khalestorm View Post
Had 2 sets of blade grips explode on me within the first 2 days. Just put in a new set with brass facing away from the plastic on inner and outer blade grips (copper facing towards plastic on inner and outer on blade grip) with no problems. I'm up to about 10 flights or so and many little crashes.


From HeliFreak Forum:

Quote:
Originally Posted by lockboy

http://www.helifreak.com/showthread.php?t=288722

I bought mcpx and was all exited to try out,did the setup and took off,5 sec later the blades come flying off and parts went missing.
i went back to where i bought it and they repaired nc, and then told me about the service bulletin yhat came out after i bought it.
i went home to try it again.I started to hover it,so far so good,then i went into stunt mode,so far so good,then it started to vibrate and one blade came flying off and hit a glass and broke it. After inspecting it i noticed all the hardware still on the head, and after checking the blade there were no parts left on it,what a letdown
iI returned it to the vendor Distrobution Au Modelists in montreal laval Qc
they were great and gave me a refund with no issues what so ever
i have called HH and waited 1hr so i left a callback #, they called me back 5hrs later,
so i call back and speak to someone who transfered me to a agent they were closed,
so i call back the next morning and wait 52 min on hold and speak to agent and i try to explain my issues,He sais some one will call me,i get a call 6hrs later but was not able to take the call, so i call back this morning and i finally got the agent who had called me back. lets see what they do now, i am not to impressed with their service.
the reason i bought this was to replace my 120sr and msr,both of them have board issues,after 30 sec they both come back down with blinking light
I am so dissapointed

From HeliFreak Forum:

Quote:
Originally Posted by Swashed

http://www.helifreak.com/showthread.php?t=288204&page=2 Post#18

Had a close one today. I removed the 3d blades to fit the FFF ones and noticed that one of the bearings looked a bit strange behind the philips screw. When I stripped it down, I found that the small cage part of the bearing fell out onto the table. Looking at the remaining parts of the bearing in the holder, showed that there appeared to be at least half the balls missing. The outer bearings were SILVER side out towards the blades and copper towards the mainshaft. The inner bearings were SILVER towards the shaft and copper towards the blades.
I phoned HH in the UK, and they seemed surprised to hear there was a bearing issue.............
Anyhoo, they are sending a new set of blade grips with bearings. I've since ordered some align bearings and a 4g6 spindle set. I'll probably fit those instead, as well as doing the tethering mods.

From HeliFreak Forum:

Quote:
Originally Posted by VaderSS

http://www.helifreak.com/showthread.php?t=288364&page=4 Post#31

Well, my heli came with the bearings silver-out. One of the bearings failed today, with probably 8 hours of flight time. There were plenty of crashes on the heli, but I had checked them just before I flew the last time, and they still felt like when I bought it.

I replaced the grips with a pair I bought as spares. They are silver out as well. We'll see...

From RC-Heli.De Forum:

Quote:
Originally Posted by efliege

http://www.rc-heli.de/board/showthre...178507&page=99 Post#990

[ROUGH GOOGLE TRANSLATION]

... is my wings and flew away, a rotor struck fully by me in the window - on the side with the slot in the Blattelagerwelle. Flown in the rotor blade including blade holder still inside a camp seems to be stuck.

The blade pivot shaft still stuck in the rotor head including a second bearing on the main rotor head - and on the other side of the second rotor blade, as if nothing had happened.

Buhhh - although I am wearing glasses, but that would still can go bad in the eyes and then rate each on such experiments! At least this one should flick a protective collar and a motorcycle helmet with visor down on them ...

What happened - as bereichtet so often: It is the ultimate camp has seized on one side of the blade pivot shaft - I think, SO SOME MAY NOT HAPPEN! Either the head slot is too narrow or too soft stock - I will analyze the future at more closely.

Edit: The sheet bearing shaft was always firmly secured with Loctite! Also no game left / right on the blade holders.

What do I do now - Horizon Elmshorn I practically just around the corner ...

Go nebenann but now only once to the party and tipping me to this glimpgflichen terror a "small" in ...

Quote:
Originally Posted by efliege

http://www.rc-heli.de/board/showthre...78507&page=106 Post#1056 (SEE PICTURES HERE)

[ROUGH GOOGLE TRANSLATION]

Thank you! I think Horizon U.S. should consider whether your static load test with 35kg überhaubt makes sense. I will return to my it is "Horizon"is a solution. With the blades flying off and "exploding"camps is too dangerous to me (abwohl he really brings humor - when he flies to mind).

I think the second sheet holder was for me before leaving the stage - is not just static tested dynamically with> 4200 rpm loaded ....

Here my pictures as promised yesterday.
As can be seen in a picture is from the outer bearing, nor the inner part to the Spindle Shaft - the outer part was still flown in the blade holder - I was then taken out later - you can see in the last photo.

Take care of yourselves and your environment and do not believe that you have the bearings installed properly - no matter in what direction do you have installed the.
I think this part is still umberechenbar - so at least my opinion.





From rc-heli.de Forum

Quote:
Originally Posted by michael1377

http://www.rc-heli.de/board/showthre...=179917&page=2 POST#19

ich bin der Meinung die Richtung ist egal (zumindest verbaut hh sie wild durcheinander)

hier ein paar detailierte Bilder meines Ausfalles

hochauflösende mikroskopbilder als Powerpoint

http://db.tt/iKixoG7

http://db.tt/iKixoG7

meine hatten das Kupfer innen

[ROUGH GOOGLE TRANSLATION]

I think the direction does not matter (at least they built hh very confused)

here are some detailed pictures of my failure

high-resolution microscope images as a Power Point




From HeliFreak Forum:

Quote:
Originally Posted by Twinsen

http://www.helifreak.com/showthread.php?t=288928 post#1

My LHS is Hobby Town USA. They refused the MCP X's after that first one they powered up lost the blades. They said they did the FS fix and the bearings were going in the ones they were flying around the store.

They also said the shaking issues after transition from negative pitch resulted in terrible shakes. I've seen these shakes. I've had 2 crashes so far, the first was due to a shake that sent the heli moving like Taz into a crash.

They sent back all the helis and the parts. Yikes. They say they're waiting for a responce from HH before they accept any.

A bit more serious than I figured. Good on Hobby Town to not allow their customers to receive a product that could break itself due to faulty manufacturing. Hopefully HH follows suit.

I got a working 4Site finally, so I'm too busy to care. I'll be flying this thing all night. Even just whipping around along the ground like a car is fun. "I'm terrible at this. Hooray!"


From HeliFreak Forum:

Quote:
Originally Posted by nwcudaman

http://www.helifreak.com/showthread.php?t=288811&page=2 POST#13

I tend to agree, the bearing is not really the one for this task. I just lost my top main bearing on its' 3rd 3 min flight!. It started to shudder really bad so I put her down quick. Found the problem really fast. Put one in out of my MSR and I'm good for now. But dude,,,3rd flight?...really?..one flip and invert hover, that was it.

Quote:
Originally Posted by destinbeachman View Post

This shows you that the bearings CAN fail even if yours performed flawlessly before:

Quote:
Originally Posted by destinbeachman View Post
Mine has the copper side out on one,and facing in on the other.Over 100 packs through it without failure.
Quote:
Originally Posted by destinbeachman View Post
Almost 9 hours on mine with one grip bearing installed in one direction and the other bearing in the other direction.No failures.Loving this heli.

Update-battery #146-I took the mcP and my 450 to the field today to really wring it out in a large open space.The wind was blowing pretty steady at about 5 mph and the little heli took it in stride.It will really haul some balls downwind!It finally furballed on me at the top of a loop.It was a bit hard to see but it looked like about halfway one of the grips pulled the outer bearing apart(brass side was oriented toward the main shaft).I had the grips and links secured by a loop of braided 20 lb Spiderwire so I didn't lose any parts or decapitate any bystanders.I am re-assembling it with a bearing from the extra grips I have.I am going to keep the other grip and bearings intact so as to continue putting flight time on the grip that didn't fail in order to see how long that one will last.I will do the regular maintemance(cleaning,lubing)before I put it all back together.I have been rotating 4 of the stock batts and they definitely have become a bit more powerful than when I first started flying the heli.So far,that bearing and a split boom are the only casualties during nearly 10 hours of flying and 21 crashes,6 or 7 of which were full-vertical slams into the grass,and at least 3 impacted onto the concrete driveway or the brickwork of my house.Hands down the most durable CP heli known to man!

From HeliFreak Forum:

Quote:
Originally Posted by Max McCarthy

http://www.helifreak.com/showthread.php?t=289361 Post#3

A great buy, I do nit regret it at all. My bearings did fail, but once I got 4micro medical standard bearings I felt really connected with the heli, and it flew great. It was the first heli I flipped inverted, and it is just fantastic. You just need to upgrade the bearings, and you will love it.

Quote:
Originally Posted by rcpilot23 View Post
Looks like the bearings are the problem.

A guy who bought his MCPX from the same LHS as I did lost a blade grip on the first hover.

The inner race had let go.

I must have been lucky when I picked mine from the pile on the shelf.


From HeliFreak Forum:

Quote:
Originally Posted by Blucross

http://www.helifreak.com/showthread.php?t=289406 Post#3

It's odd, I see folks being told to send their helis back. I emailed them regarding my blade separation and they simply asked me to provide a list of what parts broke and they would send them along at no cost.

I'm wondering if the resolution by phone and the resolution by email are handled differently.

From HeliFreak Forum:

Quote:
Originally Posted by hamstar78

http://www.helifreak.com/showthread.php?t=289406 Post#5

same here i had a grip and blade fly off and when i called hh they told me they were sending me a shipping label to send it in. i thought for sure they would just send me new grips. kinda sucks to be without it for 2 weeks after getting to fall in love with it.


From HeliFreak Forum:

Quote:
Originally Posted by Eddie NYC

http://www.helifreak.com/showthread.php?t=289474 Post#1

So much for the fix, blade zipped by my ear

After my first 2 batteries Thursday night, saw the thread about the bulletin from HH on bearing orientation. So last night I put the bearings in the right orientation (one blade was and one was not already) and put Locktite on the feathering shaft screw and used dental floss to tether the blades together.

So tonight, got the Mcp up on the first battery onto a tail shaking hover then set it down. Put it up again and this time it was smooth and then a blade shot of and flew right by my ear. Scared the crap out of me. Was wearing safety glasses as a precaution but didn't really think I'd need them. Anyway the blade on the screw side ejected and seemed to have put a nice little scuff/gash in the wall. Great. Took a picture of the remaining bearing on te spindle as well as the screw that was still in the spindle (thank you Locktite I'm sure). Will see if I can insert here somehow.

Another call going to HH on this. I thought I'd be annoyed if the fix didn't work, but now I'm just glad I didn't take a blade from 5 ft away. So much for floss tethers. Knot was fine, just ripped in the middle.

I'm not an engineer, but why is a piece of METAL failing in this heli? They need to recall this or put out a bulletin out telling people not to fly it before a fix is available so that someone doesn't get hurt. Seems clear to me now that I've seen it first hand.


.

From HeliFreak Forum:

Quote:
Originally Posted by Torquewrench

http://www.helifreak.com/showthread.php?t=289155 Post#3

I too had an accident free history with mine(35-ish flights) when at high altitude my bearings separated, HH has sent me replacement parts, and other goodies. I swapped to Aligns and had been incident free for well over 100 flights. Not saying Align are better, just had them at hand. Appear to be beefier under magnification than the HH ones.

From HeliFreak Forum:

Quote:
Originally Posted by thetable

http://www.helifreak.com/showthread.php?t=289155&page=3 Post#24

Well, I was at my LHS today picking up some batteries, and the like, we got to talking. Apparently, I just missed their bearings detonating in the store. Yes their's had been crashed multiple times, (especially knowing the people who flew it.) It's odd though, because I'm sure mine has been crashed as many times, and came in on the same shipment. Guess it's just a matter of time before mine lets go..

From HeliFreak Forum:

Quote:
Originally Posted by ELightshow

http://www.helifreak.com/showthread.php?t=289155&page=4 Post#37

Had mine for a little less than a week. Some crashes but always hit the TH, nothing too hard. Was spooling up and it threw a blade, grip and all hitting the wall, leaving a nice dent. Half the bearing was still on the spindle. I was impressed at the force this bird tossed that blade. Makes me kind of nervous now.

..


Quote:
Originally Posted by The Nemesis View Post
I DID actually have property damage due to faulty main grip bearings going out. The heli was in hover and the main grip flew off and the heli flew into my sons Kinect for his Xbox. This would not be that big of a deal if he did not use it for therapy (He is a special needs child). I spoke to the people at HH and I am waiting for the "property damage" dept. to get back to me. As far as I understand, they are willing to "compensate" me for the damage but I will not know further till I speak to them tomorrow.
From HeliFreak Forum:

Quote:
Originally Posted by heliface

http://www.helifreak.com/showthread.php?t=289614 Post#8

I just had one of the blades fly off randomly right at my face. I blocked it with my hand and now my hand is bleeding. If i hadn't successfully blocked it, my eye would have been put out and they would have a very large lawsuit on their hands let me tell you.

Inherent dangers of rc toys is one thing - having blades fly off completely randomly is just plain dangerous. I will be returning this tomorrow.

The bearing failed, on its 2nd flight as well. No prior crash on this particular grip, as i had just installed it after a previous grip failure!
Quote:
Originally Posted by dang View Post
8th battery. Hovering a little above eye level. I had a small loop of 20lb spider wire fishing line tied with an overhand knot and a drop of CA because I ran into this thread a few days ago. This made it a non event. Thanks to those who post solution oriented comments.

Dan

See Pick of failed bearing here:
http://www.rcgroups.com/forums/attac...mentid=3882535

NOTICE: MORE INCIDENT QUOTES ARE BEING CONTINUED IN POSTING #2 JUST BELOW AS I HAVE REACHED THE MAXIMUM CHARACTERS FOR POSTING #1.
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Old Mar 12, 2011, 11:07 AM
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MORE INCIDENT QUOTES CONTINUED IN THIS POST #2 FROM ABOVE POST #1.


Quote:
Originally Posted by huntbig View Post
Well, I have gone through two mcpx's. First one I was hovering a bit and the bearing failed and then blade shot of over my head and hit the wall. So I went bent to my LHS and explained what happend. The owner was more then happy to swap out mine for a new BNF model. I also spoke with HH and was told that they had not recieved specific intructions from the designers on the orientation of the bearings when they release the mcpx's. However, as preciously mentioned here, they said that the brass should be facing out on the exterior bearings. So before I even powered up my new mcpx my friend, who is a machinist, took the grips apart and saw that the bearing were installed backwards. We corrected the problem and I thought my worries were over. Wrong! About 15 mins of flight time later the bearing failed. This right here is proof that the bearing are garbage and the orientation of the bearings have no effect on there performance. There is no step on the outer housing, opposite of the brass insert, to prevent them from being pulled out. There is only another insert.
To correct the problem we machined brass bushings to the exact size and dimensions of the bearings and used those in place of the outside bearings. Now before people go and complain that these will wear out. I'm no where near ready to comfortably fly inverted so there is no need for a bearings at this time.
HH said they will be sending out a new type of bearing on with the new grips when they go out.

Quote:
Originally Posted by mart1971 View Post
Hi all, picked up my Blade MCPx on thursday from Martin Briggs models which is a great little shop.

Whilst showing it to a friend of mine on Friday, the one blade grip flew off and hit my friend in the chest, luckily with no injury.

It came down with a bang and has busted the canopy. Now I have read this thread it will be interesting to see how Horizon Uk handle my complaint via my well trusted model shop


Quote:
Originally Posted by flydrive rc View Post
Ok, I got my MCPX in the air brought it to a stable hover and you guys will never guess what happened... It through a blade not only did the blade fly off it hit the tail boom and it did and broke that too


From HeliFreak Forum:

Quote:
Originally Posted by rapala

http://www.helifreak.com/showthread.php?t=289920&page=3 Post#25

My outer bearing failed just as was landing. I have crashed it a few times before the bearing failed. I replaced it with a novus 125 cp bearing. Seems to work fine. I will see if it holds.
..

From runryder Forum:

Quote:
Originally Posted by es1co2bar3

http://rc.runryder.com/helicopter/t636091p2/

i went and got a 3rd one, i came home do some 3d at my front gate maybe
3 or 4 flip and the battery weak while it was inverted, " i came inside

put a fresh battery in and do some flight around the room for about a min; and one of the blade grip flew off. well well 'i started

to feel happy about blowing up my $200 dollar. I should've gone and buy my logo 600 carbon fiber frame

now i need bearing for the blade grip and a new swash plate...


From runryder Forum:

Quote:
Originally Posted by flyride

http://rc.runryder.com/helicopter/t636612p1/

Mine just threw a blade in the middle of a flip and it looked like my heli just exploded in the sky and it destroyed the boom also.I heard of the mcpx throwing blades but I wasnt sure what the exact problem was until it happened. The entire blade grip with bearings slid off the end of the feathering shaft, not the side with the screw but the other side and I did check them often and did make sure it was tight. So what now are they going to make a different shaft or what is the fix for the problem?

Picture:

http://rc.runryder.com/helicopter/rr...?p=5250214&i=1


Quote:
Originally Posted by Death-Dealer View Post
The bearing on my blade grip came apart also...I got a paper when I bought mine to tighten the screws before flight. BTW the end with the flat head screw doesn`t come off, it is built into the feathering shaft. The bearing on that side on the other hand fell apart.

Quote:
Originally Posted by Fragzilla View Post
+1

I posted this to show what happens when these things blow apart, not for judgement of my flying skill or mechanical abilities. I also have a 250, 450 and numerous other micro helis and have never seen anything like this. It was my intention to have it fail and have it on video - period.

Say what you will about this or that but the fact remains the same, there is a major issue with these helis and they should not be on the market till this is addressed.

Having to mickey mouse a restaining system is un acceptable.

As far as the bearings they were all placed with the brass color side facing away from the shaft. I had read somewhere about that being the correct way. When I first took it apart (new) there was no rhyme or reason to the orintation of the bearings.

Pictures here:

http://www.rcgroups.com/forums/attac...mentid=3888364

http://www.rcgroups.com/forums/attac...mentid=3888365

http://www.rcgroups.com/forums/attac...mentid=3888366


Quote:
Originally Posted by Fragzilla View Post
Also should note the brass washers were placed with the raised face towards the bearing.


Quote:
Originally Posted by cboggie View Post
So, after the blades flew off, it looked like this:



So i decided to take a closer look, it appears that the bearing has a ring in it that is missing in one of the bearings..(normal bearing is in the upper right corner...obviously):



So, needless to say, i believe i have an issue.



Quote:
Originally Posted by Pilot in MO View Post
I cannot keep up with all the threads but bought two mCPx BNFs......the first is back at Horizon as of yesterday. It did some really weird stuff right out of the box, including bearing failure. My second one had a weird vibration just before liftoff, I could see that there was some play in the main shaft but just pushing/trying to get the gear snap into place didn't work. I finally got it seated correctly and this one sounds good and flies flawlessly.

I firmly believe that Horizon will fix or replace my other heli. If the bearings prove to be too weak or flawed for this application, they will revise them.

I watched the vid of the bearing failure and laughed the whole time.....the pilot couldn't even establish a stable hover.....when it started shaking he kept on flying until it self-destructed DUH!!!!! Try that with a 700 class in the house.

It is ashamed that unskilled pilots are buying these birds, fly them when they should be grounded for inspection/maintenance until they toss something. Some will say I am siding with Horizon, some will always claim the design is flawed.....

I will fly my second bird with confidence now that I know what symptoms to watch for and how to fix them. I hope every mCPx owner flies safe and has fun

Ron

Quote:
Originally Posted by pootman View Post
My blade grip flew off this evening, much like what others have described in this thread. Flew one pack just fine, but the heli started acting strange on the second pack. It had a weird vib and seemed like the blade tracking was off around 0 to slightly positive pitch. Once I pushed the positive pitch up to just shy of full positive the blades would "snap" into a tracked position. But the heli was essentially hovering with almost full throttle/pitch. While trying to figure out what was off, one of the blade grips flew off. I think I read some accounts of HH resolving this issue for its customers and some where the customers were left without a resolution. Should I just shoot them an email or are they more responsive to direct phone calls? Thanks.

http://www.rcgroups.com/forums/attac...mentid=3890811

http://www.rcgroups.com/forums/attac...mentid=3890812

http://www.rcgroups.com/forums/attac...mentid=3890813

pootman

Quote:
Originally Posted by Arcnsparks View Post
I just had to post and show that I actually DID find my failed bearing with the ball separator and balls! I had went ahead and copied Ampdraw's fishing line retainer setup (haven't lost a single pitch link!) when I received mine but when investigating a possible bent FS i realized it was actually a bearing in mid failure. I'm glad HH is addressing the issue although my 4G6S metal grips are working perfectly for more than 100 flights.

http://www.rcgroups.com/forums/attac...mentid=3892936

http://www.rcgroups.com/forums/attac...mentid=3892937

http://www.rcgroups.com/forums/attac...mentid=3892938




Quote:
Originally Posted by wparsons View Post
So not even half an hour after filling in the form to get the revised blade grips from Horizon I was flying lightly around the living room and threw a blade. Managed to miss me, the dog, the TV and 3 computer monitors.

No idea where the balls when from the bearing!

For the record, all the bearings were copper side out from the factory.

Off to pick up some trex 250 bearings tomorrow until my new head arrives.




Quote:
Originally Posted by Yerop View Post
I picked up mine tonight. I flew it 3 times for about 1 minute each to get the feel for it.

On the 3rd flight, about 1' hover, the main blades shot off for absolutely no reason. One shot across the room.

Ok, I know vaguely about a bearing failure in the main grips, but after inspection of mine, the phillips head side on the feathering spindle pulled out. The bearings look fine, although I lost the little spacers. Are others experiencing this?

Being said that I purchased this 5 hours ago, should I just return it to the LHS, or should I contact HH? Im scared of this thing now, those blades spin fast and now I feel like I need to wear safety glasses if I get this fixed and fly again.

I never worried about my 120 SR hurting me

Quote:
Originally Posted by Yerop View Post
My LHS informed me of it, the actually took it out of the box for me at the store and checked it and said everything was tight and good to go.

About 2 flights later after I put it back together, the blades shot off again. This time, the inner bearing seperated, allowing the entire feathering shaft to come out with both screws tight on each side.

Calling Horizon Hobby now.








Anyone else out there who has had the misfortune to experience this issue, please add your comments here. I hope you were not seriously injured. We have to work together to get HH to address this seriously for us end consumers.

It's only been 2 weeks since it's worldwide release and multiple issues of these similar cases show a very valid concern.

Thank you.

My recent thoughts:

Quote:
Originally Posted by RCaddicted View Post

....

Though I am a fan of this product and want to see it succeed, I do place a paramount importance in the safety of it's operation. Of course, responsible operation on the users part has to to be in place, BUT, mechanical failures through normal operation especially with a new product with new parts is VERY frowned upon. This is a proven fact that has happened numerous times globally. Just see the various forum boards/threads.

Some of you say it's a simple 'fix' to use another manufacturer's parts as replacement, BUT, we should NOT have to do this!

Like to play Russian roulette with your eyes anyone? Or your loved ones? Or have nice manly facial scars?

Anyone considering buying one please be forwarned about this very serious issue! I would persuade you NOT to buy one at this time till HH does something.

NEW BUYERS, HOLD YOUR BUYING FOR THE TIME BEING!

HH, Dribbe(HH employee), if you read this, know that info will be given. Please take some action NOW. Dribbe, I know it's on your goodwill that you are even on these boards, but I hope you can get the message back to whoever can make something happen. Thanks.

Thanks.
Quote:
Originally Posted by RCaddicted View Post
I have updated the first page showing this new 'quote' info about the Rex bearing failure. Now sure if it indicates a design flaw that goes beyond the current stock bearing issue.

I am just consolidating all info I find. Hopefully this isn't the case. Thank you all so far for keeping this thread in focus and being constructive with your advises and witness reports.

Whatever you decide to do, if you decide to purchase this, please be safe and TAKE PRECAUTIONS.- safety glasses, keep love ones away.

Remember that if an 'accident' does occur, and it is found that you had replaced the stock bearings with 'non-stock' bearings, HH warranty will not cover you as you have voided it by 'modding' it from stock configuration. In any case, these true real life incident evidences on the first page of this thread may not protect you(if it at all could help), the end consumer, as you were flying a 'modified' non-stock machine.


"If you substitute or replace normal kit hardware and/or radio components with after-market accessories, HORIZON HOBBY, INC. cannot be held responsible for problems or equipment failure caused by incompatibility or modifications."


This thread is just to help new buyers make a more informed decison on this purchase choice.

Also do remember that if HH does make a good responsible response to this issue, EVERYONE benefits. Those who are flying it now, and those who plan to buy it later. It would truly be unwise to downplay the issue. You will be doing a disservice to all hobbyists.

Quote:
Originally Posted by RCaddicted View Post

Quote:
Originally Posted by DMala View Post
In my opinion if anyone personally experiences a malfunction or accident involving safety and possibly due to a product defect, he/she should report it in a fair and accurate manner to the US Consumer Product Safety Commission. It is their job to conduct a fair assessment of whether or not any measure is needed to protect consumers. This is for any brand of heli, regardless of the perceived reputation or quality of the customer support. Here is the link

http://www.cpsc.gov/
This thread's purpose was started to create an awareness of the issue among the world community as HH has not found the requirement to do so. The pdf bulletin issued by HH does not prevent a bearing failure from happening.

If a link to the first page of this thread is posted together in any kinds of submitted online reports, I am sure it may add credibility to that report.

I agree that the mCPx may be a very well performing micro helicopter in it's class, but this cannot take away the seriousness of this safety hazard.

As many have recommended, use safety glasses, fly on your own away from onlookers, and do responsible reporting of any issues. Thank you.
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Old Mar 12, 2011, 11:12 AM
I love HAM
Joined Nov 2005
725 Posts
Seems like Blade have a couple of lawsuits on their hands if this keeps up

Funny to see that the problem can be solved with Walkera parts, the same company of which so many Blade fanboys complain about their QC
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Old Mar 12, 2011, 11:21 AM
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USA, CA, San Diego
Joined Oct 2007
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Quote:
Originally Posted by Schermvlieger View Post
Seems like Blade have a couple of lawsuits on their hands if this keeps up

Funny to see that the problem can be solved with Walkera parts, the same company of which so many Blade fanboys complain about their QC
Exactly correct, and I also warned in the original MCPx thread this sorta thing was bound to happen. Making things cheap and good just isn't possible.

I'll stick with my modded V120 thanks.
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Old Mar 12, 2011, 01:17 PM
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what about the people that dont use the forms im sure eflite will have to do something soon about this .
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Old Mar 12, 2011, 01:20 PM
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Quote:
Originally Posted by chevell View Post
Exactly correct, and I also warned in the original MCPx thread this sorta thing was bound to happen. Making things cheap and good just isn't possible.

I'll stick with my modded V120 thanks.
walkera are even worse i would expect HH to fix the problems but if this was walkera well they would simple bring out another helis
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Old Mar 12, 2011, 01:28 PM
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Quote:
Originally Posted by bazzer23 View Post
walkera are even worse i would expect HH to fix the problems but if this was walkera well they would simple bring out another helis
This is a much more serious issues than those that have occured for Walkera helis. It must be fixed or else someone is going to get blinded.

Consdering that it has only been around a few days, and that the owners would not flown many flights, this does not appear to be a spurious issue. There is no way I am going to buy one until this has been fixed.
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Old Mar 12, 2011, 01:29 PM
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USA, CA, San Diego
Joined Oct 2007
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Quote:
Originally Posted by bazzer23 View Post
walkera are even worse i would expect HH to fix the problems but if this was walkera well they would simple bring out another helis
If Walkera is worse they why does it take a Walkera part to fix it?

They all require some modding but these problems seem a bit more drastic than usual.
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Old Mar 12, 2011, 01:38 PM
Did you check the FAQ already?
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Quote:
Originally Posted by Schermvlieger View Post
Seems like Blade have a couple of lawsuits on their hands if this keeps up

Funny to see that the problem can be solved with Walkera parts, the same company of which so many Blade fanboys complain about their QC
That was my first thought when I read about this fix. Perhaps they did rush out this heli to be the first to release one in this weight class... Nasty problem, I know helis are to be treated with respect, and a blade coming off is always a possibility, but it seems a bit like a probability instead of something that might happen sometimes.
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Old Mar 12, 2011, 01:42 PM
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Quote:
Originally Posted by chevell View Post
If Walkera is worse they why does it take a Walkera part to fix it?

They all require some modding but these problems seem a bit more drastic than usual.
Its down to HH to fix the problems if people are using walkera parts then all i can say is i wont be lol If this was a walkera heli people wouldnt be expecting them to fix it they would be fixing it Themselves? Right now its to early to tell anything yet .
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Old Mar 12, 2011, 01:43 PM
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keep in mind that while horizon might monitor these forums unless you call there helplines to complain about it, it will not show in there statistics and then they are not aware of how big the issue is.
So report it and then they know wat action to take.
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Old Mar 12, 2011, 01:46 PM
RC Helis: My Healthy Obsession
The OC, California
Joined Feb 2007
3,159 Posts
As most members here know, I have a butt load of Walkera micro CP helis. I have at least 2-3 of every model they have made in the micro sector in the last 3 years. I also own and have been flying my 2 MCP's as well. In all of the extreme HS testing with my Walkeras, I have not had a main grip bearing fail or blow apart on spin-up. I have had them start getting notchy, but have yet to see a complete blow out to create Night of the Flying Daggers. It is just evident that no matter who is the manufacturer there will always be issues. Unfortunately, this one is a bit more serious than "hey one of my cyclic servos is stuck". IMO, it might be wise for HH to issue upgraded bearing sets to all who have volunteered to be beta testers (sound familiar?) by buying this heli. They have a history of being very responsible and responsive to customer service in the past, so I am hoping their policies don't change in this case.

In the meantime, practice safe flying procedure and wear eye protection when spinning this heli up in your hand. I have installed 2 T250 bearings on the outside of the grips to keep them from blasting off. I think if you use 2 T250 bearings in each grip, the slight difference in thickness may cause a binding issue and head vibrations.

Darryl
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Old Mar 12, 2011, 03:23 PM
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Joined Aug 2006
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Thanks for this post guys! I just picked mine up and flew it around in kitchen with idle up mode for a few minutes. I should pull the head apart for an inspection.

I hope Horizon does do something to address this soon.
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Old Mar 12, 2011, 03:59 PM
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Man, is it me or has Horizon Hobby's been messing up a lot lately? I guess that with every company once you have lots of money rolling in, people just get spoiled and lazy. Shame on them!!
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Old Mar 12, 2011, 04:14 PM
Registered User
Texas
Joined Nov 2000
459 Posts
Blade MCP X Question...

Meant to start new thread - sorry!
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