Problems!! 14MZ 2.4 R6014FS

[DR10044]

CR,

Are you using a data logger to determine you are getting brief failsafes. If yes, pass on the link, I would like to buy one for my FASST systems. Thanks.

	Quote: Originally Posted by crhammond
	It is not hot here (less than 70f) so I am monitoring my Rx's. But if it gets warm I will not fly until we hear back from Futaba. I am also covering my canopy on the ground as it gets very hot in there under the sun no matter what the temp is outside. I have not tried to reproduce the results - but I plan to very soon (just need some time to get to it.) I have no choice but to mount the Rx's up in the canopy - I am getting occasional failsafes if I don't. Very brief failsafes but failsafes none the less. I am guessing the engine is somehow blocking the signal but I'm not sure. No issues when they are up in the canopy...

[Rolling Thunder]

	Quote: Originally Posted by canavanbob
	Judge is only trying keep the lid on this until Futaba comes up with a solution. The rest of us are trying to figure out how bad the problem is and what we can do to keep flying in the meantime.

Looks to me that you are just fanning the flames. It is posts like yours that make these websites a waste of time.

[KIM]

i have grounded my futaba system till the fix is in ,will use my 9303 2.4 or ill just go back to PCM

[crhammond]

	Quote: Originally Posted by DR10044
	CR, Are you using a data logger to determine you are getting brief failsafes. If yes, pass on the link, I would like to buy one for my FASST systems. Thanks.

I am using a Powerbox RRS. It switches between 2 Rx's when it sees a failsafe or invalid values.

In my Python with the Rx's in the canopy in 12 flights I have seen 0 switches.

On my 3W Extra with the Rx's in the fuse on a Powerbox Royal with built in RRS (but away from CF and big metal objects) I have seen 3 failsafes (just one flight.) When the weather gets good again I will move the Rx's up to the canopy... that is once this temp issue has been confirmed or denied...

Here is the RRS link: http://www.powerbox-systems.com/e/po..._rrs/start.php

When the Rx's switched the RRS still showed they were "on-line" 100%. I wrote Duralite and they told me that the failsafes were very brief (i.e. less than 1% total flight duration) so thats why they both still showed 100%

[canavanbob]

	Quote: Originally Posted by Rolling Thunder
	Looks to me that you are just fanning the flames. It is posts like yours that make these websites a waste of time.

Yours is certianly very informative and makes very good use of everyones time.

[crhammond]

Well for what its worth I just tried the "heat gun test" on four 6014's and one 607. I got the cases as hot as 188f (thats really really hot) and they were still fine.

Then I did one and "went for broke" - I got the case to 212f and it went red. The case settled to 150 afer about 1 min. It was still red with the case down to 125f after 3 mins. Okay - 100f and the green light came back on.

There is a clear audible "click" when it goes off and when it comes back on.

So it is repeatable - but man oh man is that hot! I can't imagine it getting that hot in an airplane. But I guess if it starts out at 110f and gets some sun on it it could happen. It seems like the board takes a while to absorb the heat (makes sense.) I guess the board will soak up ambient heat over time esp when it is turned on. Darn.

[Rolling Thunder]

I fly at the same field as the secret person that is having the problem. I am running the same receiver as the secret pilot. I am not having any problems, but my reciever is not exposed to direct sunlight. But I am running pipes and he is not. I am running Smart Fly Power Expanders and he is not. I am flying wood airframes (Aeroworks and Hangar 9) and he is not (comp arf and krill).

I have the new 8 channel reciever that I have not flown but I have used it while setting up a plane for my buddy. The receiver was warmer then room temp (10-15 degrees) after 20-30 minutes. I thought this was odd.

[Judge]

	Quote: Originally Posted by catman3070
	I think what gets most people going is when someone comes in with the gloves on to begin with. People are posting their findings and feelings on the matter and every time someone post a finding there seems to be a comment from a team member trying to discredit them.

Well apparently you were not reading my posts. I NEVER tried to discredit anyone. My position is that Futaba needs to have time to review the issue and determine the appropriate course of action. I did make comments to the effect that I am not fond of how the Net can take over an issue like this, but I never tried to discredit anyone. I also pointed out the posts where people said they could not get their RXs to do this.

[Rolling Thunder]

Judge, I thought you were trying to hide the problem.

[Judge]

	Quote: Originally Posted by dubd
	Judge, given that you are affiliated with Futaba, the best thing you can do is stay out of this. The more you post, the more of a negative opinion I have about Futaba.

Seriously?? Wow.

[catman3070]

	Quote: Originally Posted by crhammond
	Well for what its worth I just tried the "heat gun test" on four 6014's and one 607. I got the cases as hot as 188f (thats really really hot) and they were still fine. Then I did one and "went for broke" - I got the case to 212f and it went red. The case settled to 150 afer about 1 min. It was still red with the case down to 125f after 3 mins. Okay - 100f and the green light came back on. There is a clear audible "click" when it goes off and when it comes back on. So it is repeatable - but man oh man is that hot! I can't imagine it getting that hot in an airplane. But I guess if it starts out at 110f and gets some sun on it it could happen. It seems like the board takes a while to absorb the heat (makes sense.) I guess the board will soak up ambient heat over time esp when it is turned on. Darn.

You have to remember that these receivers are sitting under a canopy in the sun. While sitting there the receiver is soaking up all the heat. If you use a heat gun you can raise the outside temp very quickly and it may take some time to soak into the board.

This problem remines me of an issue I had with my laptop. When I left to sitting in the vehicle, turned on, sitting in the sun, it would shut down from the processor getting to hot.

[grayuk]

I asked earlier on if anyone know of any other aircraft type that has suggested this problem?
Is it all large aerobatic type?
There is a good reason for this question, any takers?
I am not talking about forced failures but ones that have happened naturally?