Problems!! 14MZ 2.4 R6014FS

[Jurgen Heilig]

Other systems (here: iFS/XPS) appear to have problems with heat too:

http://www.rc-network.de/forum/showp...&postcount=680

In direct sunlight (@ estimated 40-45°C) the rx without housing goes into "zombie-mode".

Jürgen

[DR10044]

	Quote: Originally Posted by 1bwana1
	Yes, in an earlier post in this thread.

Thanks. I have been watching this thread from the start. I must of missed it.

[diamondave5]

mine is(was) in a 88" extreme flight yak, under the canopy, which is tinted, mounted in the exact spot and same way my pcm319 was(is) mounted, i flew last summer here in tucson with the pcm, yes it was hot, yes i was sweaty flying, no i had no noticable problems, this 2.4(617) reciever was 2 weeks old, not even in summer months yet, and it failed, i truly believe it was heat realated, ive flown twice since with my pcm back in the exact same spot, no failure that i see, some of you say its our responsiblity to stay within the specs, so what does that mean, i cant fly in tucson from late april until september??? i agree with those of you that say something is wrong, and oversite maybe, something not thought of? i highly doubt it was intentional, maybe i am at the high end of temps with all my parts, batts, servos, etx.., but there is nothing i can do about that, my covering wrinkles more than yours does too, but i still want to fly and enjoy the hobby, just need to drink more water, haha, i still like futaba but i sent my 2.4 stuff back since it was within a months purchase, got a refund from tower, now i will see what happens with the rest of you guys, meanwhile i feel safe flying with my pcm, maybe in a year or 2 i will try the 2.4 stuff again, just need to see what happens with all this

[DougV]

I flew with the FASST system all last year on 4 different airplanes/Jets under the crispy south Florida sun with no issues at all, 3 other FASST pilots that I know… no problems.

91F yesterday flew 3 times no issues.

Regards,
Doug.

[reyn3545]

Has ANYONE experienced a failure (loss of control) while flying with the 6014? There's no guarantee that a control loss would absolutely be a receiver shutdown, but lets turn our heads to that for a moment. Has ANYONE lost radio control of a plane while flying with a 6014 receiver?

[rcjunckie]

I will start by stating that I use the Futaba 12Z radio system. I have been very satisfied with the radio up until recently. After waiting months for Futaba to finally catch up with 2.4mhz technology, (seems like JR has been kicking their behinds for quite some time) I received my TM-14 transmitter module and R6014FS receiver a couple of weeks ago when they became available at Tower. I have been a loyal Futaba man for quite a number of years now and have resisted the temptation to switch over to JR quite a bit in the last few months. My flying partner has been giving me the business about why don't I switch over to JR. After what happened just the other day, I'm seriously considering the move.

I had built a brand new Aeroworks 150 CC YAK and this would be the first model that I have the new 2.4mhz system installed in. All went well at home with testing and setting up the model so I took it to the field last Sunday for the maiden flight.

The outside temperature at the field was in the middle 80's that day. I put the model together and got ready to do the range check. I had the canopy on and I am using a Smart Fly power expander 14mz with Smart Fly turbo regulator. The R6014FS receiver is installed where the sun can shine on it directly. After the 90 second range check the tranmitter automatically went to full power transmission mode. I started the engine at this time and had control of the throttle and all the control surfaces. I let the engine warm up for a couple of minutes and prepared to throttle up and check my control surfaces one last time before taxiing on to the runway. But then, I had no response from the throttle or any other servos. Looking through the canopy I could see that The receiver showed only the red light as if it had lost contact from the transmitter.

I must admit I was quite baffled at the time and at a loss for what could have possibly cause the difficulty. I turned off the power to the ignition and stopped the engine and then turned off the power to the receiver. Thank goodness the engine was only running at an idle and did not power up on its own. I had the plane properly restrained, but who knows what could have happened in this situation.

I waited for a while and turned the receiver back on again after about 5 minutes. The receiver went to green only to turn back to red and have no control after 3 minutes in the sun. Waited for a while longer, took off the canopy and after about 10 minutes turned on the receiver again. No dice, it cut off again after about 3 minutes and went to red. The plane was still in direct sunlight. How hot was the plane inside? I don't know but it must have been enough to cause the failures that everyone's talking about.

After reading quite a few of the threads about this problem, I can only surmise that temperature is the culprit here and is a real problem for this Futaba manufactured component system. It would appear, in my opinion, that not enough R&D was performed by Futaba before releasing this problem component to the flying public. I can tell you that I would have been sorely distressed if I would have had a failure in the air with my brand new aircraft. This is most distressing. What is Futaba's remedy for this malady?

[notorious_benny]

I have just read the whole thread from start to finish.

I have only just purchased myself a brand new 2.4Ghz 14MZ radio. My JR 10X with Spektrum module is getting a little long in the tooth, I wanted to try a new radio as I have absolutely no alleigence to either brand and the 14 had been 'calling' to me for quite a while.

Living in a hot part of Australia, and flying a comp-arf super extra, the failures that people have been having are scary to say the least. I am sure that Futaba will find us a solution to the problem, but it may take more than a few weeks before this happens. I believe this is reasonable, we dont want a quick fix, a researched and engineered solution is what I hope for.

In the meantime I will be purchasing a Spektrum Airmod module for my brand new 14MZ so I can fly my planes without the uneasiness of 'thinking' there is a problem. Yes I will be down to 8 channels for a few months but I wont be worrying about hiding my plane in the shade.

[Fish07]

	Quote: Originally Posted by rcjunckie
	I will start by stating that I use the Futaba 12Z radio system. I have been very satisfied with the radio up until recently. After waiting months for Futaba to finally catch up with 2.4mhz technology, (seems like JR has been kicking their behinds for quite some time) I received my TM-14 transmitter module and R6014FS receiver a couple of weeks ago when they became available at Tower. I have been a loyal Futaba man for quite a number of years now and have resisted the temptation to switch over to JR quite a bit in the last few months. My flying partner has been giving me the business about why don't I switch over to JR. After what happened just the other day, I'm seriously considering the move. I had built a brand new Aeroworks 150 CC YAK and this would be the first model that I have the new 2.4mhz system installed in. All went well at home with testing and setting up the model so I took it to the field last Sunday for the maiden flight. The outside temperature at the field was in the middle 80's that day. I put the model together and got ready to do the range check. I had the canopy on and I am using a Smart Fly power expander 14mz with Smart Fly turbo regulator. The R6014FS receiver is installed where the sun can shine on it directly. After the 90 second range check the tranmitter automatically went to full power transmission mode. I started the engine at this time and had control of the throttle and all the control surfaces. I let the engine warm up for a couple of minutes and prepared to throttle up and check my control surfaces one last time before taxiing on to the runway. But then, I had no response from the throttle or any other servos. Looking through the canopy I could see that The receiver showed only the red light as if it had lost contact from the transmitter. I must admit I was quite baffled at the time and at a loss for what could have possibly cause the difficulty. I turned off the power to the ignition and stopped the engine and then turned off the power to the receiver. Thank goodness the engine was only running at an idle and did not power up on its own. I had the plane properly restrained, but who knows what could have happened in this situation. I waited for a while and turned the receiver back on again after about 5 minutes. The receiver went to green only to turn back to red and have no control after 3 minutes in the sun. Waited for a while longer, took off the canopy and after about 10 minutes turned on the receiver again. No dice, it cut off again after about 3 minutes and went to red. The plane was still in direct sunlight. How hot was the plane inside? I don't know but it must have been enough to cause the failures that everyone's talking about. After reading quite a few of the threads about this problem, I can only surmise that temperature is the culprit here and is a real problem for this Futaba manufactured component system. It would appear, in my opinion, that not enough R&D was performed by Futaba before releasing this problem component to the flying public. I can tell you that I would have been sorely distressed if I would have had a failure in the air with my brand new aircraft. This is most distressing. What is Futaba's remedy for this malady?

Another one....huumm,this sounds suspicios to....

[JimC-MD]

	Quote: Originally Posted by Fish07
	Another one....huumm,this sounds suspicios to....

Questioning a Fishy post can be a good practice.


Hehe



Common, guys. The "Liar"! "Schill!" "It's your own dang fault" "Nu Uhhh" posts are getting old. Let's see if there is an issue and what the solution is.

See you all at the Nall.

[grayuk]

	Quote: Originally Posted by grayuk
	Have all the failures been in large aerobatic models? In ALL of these models is the rx under the canopy? Was the old PCM 72 meg in the same place or has the FASST rx only been placed there because of the short aerials and fear of interference from the carbon/fuel? Just a thought…any thoughts or feedback on this? Paul

had no feedback on this post? anybody?

[Radioactive]

At the seef for 4 days, six models with 14Chan Fasst..Zero problems, actually had the sun wrinkle our covering on darker airframes, no FASST problems appeared, actually left the models in the sun all day.. All perfect... couldn't duplicate the probelm, and yes i came home with a big sunburn!!!

[Flyfalcons]

I'm sure if there was a failure in a large scale aircraft in flight we would have heard about it by now. It does seem that many failures are in aircraft where the receiver is exposed directly to the sun. Hopefully Futaba is researching the problem and will have a solution. I only have one airplane on FASST so far but have flown it in some heat with no problems. The RX is not exposed to the sun in that installation.