Futaba Heat Issue

[dick hanson]

Unexplained glitches are typically - power supplies which are marginal at best. Electric models are worst offenders which is due in a large part to the fact that many electric model users are newcomers with little or no understandiing of batteries and what they can or can't do.
I lucked out and did a crash course on batteries for electric models -
found out that most batts were almost worthless (too much impedance) and that proper selection is woefully misunderstood by users and in some cases the people who sell them the equipment.

[Radioactive]

	Quote: Originally Posted by canavanbob
	Is this Futaba's "official" stand on the heat issue? Support and Service Manager: The "whole heat issue" has been quite well over-blown by a few scare-mongers. Yes, some receivers have had issues when they have become hot, whereupon they stopped operating, the R617FS is not one of these receivers. Electronics will tend to do this when they are overheated. If your model's internal temperature is exceeding 140 degrees F, then your receiver may quit working, but that also means you have other issues to deal with. Regarding the person on one of the web forums who said his receiver quit at 102 degrees F, well you have to understand that his test was performed after a crash. That ONE PERSON also had a crash for unknown reasons, but made the blind assumption that it was heat, even though the conditions were not such that high heat was a consideration. We've only heard of actual heat-related problems with models on the ground that were sitting in direct sunlight in areas of the country where the outside air temperature exceeded 100 degrees F, and the radio equipment was in the model and under a large, clear canopy. Some models were large-scale models that had the exhaust canister mufflers inside the fuselage with nothing between them and the interior of the model. Such conditions can cause damage to the model structure and other components inside the model. NiCd and NiMH battery packs are only rated to 140 degrees F. Switches and wiring can also have problems when you get that hot. We don't believe that people have reason to worry if they take the precautions that modelers have done for decades: be sensible in equipment installation, keep the model out of direct sunlight or cover it with a light-colored cloth, perform range and system checks at the start of each day, and check operation before each flight. Our installation guidelines are here: http://www.rcuniverse.com/forum/m_7606959/tm.htm Sincerely, Krysta Product Development & Support Specialist Futaba Service Center USA service@futaba-rc.com

Krysta you Go Girl.... thks for all you do!!!

[~SnApRoLl]

I'm not bashing or anything but this is precisely why I will not switch over to FASST. I do fly Futaba and have for many years but it is on 72mhz and I will continue to fly on 72mhz. The one thing I didn't really care for in the Futaba rep's statement was that it seemed they are blaming the FASST users for keeping them under a clear canopy in direct sunlight and running pipes in side of the fuse causing the FASST failures, but correct me if I'm wrong here but I have never heard of a 72mhz rx failing due to an over heat and if you look at all of the giant scales planes in existence that are using 72mhz and that have the exhaust systems running through the fuse, there is little history of failure caused by an over temp so that tells you right there that something is not 100% with 2.4 FASST!
Unfortunately the 2.4ghz systems that are being used for our rc models is relatively new (not new as far as technology) but new to our hobby and unfortunately we the customers usually end up being the guinea pig. Should we take precautions to insure everything works properly? YES!! Should a manufacturer step up and admit there are problems and fix it, when it does seem obvious there are issues with FASST I say YES as well!
This is just my 2c. worth and again I am in no way bashing anything or anyone, just giving an opinion.

Shawn

[Panzlflyer]

Krystas answer is why I sold all my Futaba stuff, like she insisted you could peak charge a 9Z with the pack in place.
Completely ignoring the real world and proving she just quotes the uninformed party line.

[~SnApRoLl]

..... Sorry dbl post.

[~SnApRoLl]

	Quote: Originally Posted by canavanbob
	Is this Futaba's "official" stand on the heat issue? Support and Service Manager: The "whole heat issue" has been quite well over-blown by a few scare-mongers. Sincerely, Krysta Product Development & Support Specialist Futaba Service Center USA service@futaba-rc.com

Krysta,
If you see this thread I have 1 question for you,
You say the "Whole heat issue" has been quite well "over-blown" by a few "scare-mongers"
What happens if say a 40% aircraft with weight of 40+ lbs flying at 100 mph is using FASST and it goes dead because of a heat issue and it goes into a crowd? Worse yet what happens if its a 30+ lb Turbine Jet flying in excess of 200 mph hits a crowd due to a heat failure and 1 or more people are seriously injured or dead??????????? Are you still going to call the issue "quite well over blown?


Regards,
Shawn

[Tin man]

	Quote: Originally Posted by ~SnApRoLl
	Krysta, I have one question in regards to your post.

Do you always respond to people who didn't post in the thread, but instead were merely quoted by someone else? LOL...

	Quote:
	You say the "Whole heat issue" has been quite well "over-blown" by a few "scare-mongers" What happens if say a 40% aircraft with weight of 40+ lbs flying at 100 mph is using FASST and it goes dead because of a heat issue and it goes into a crowd? Worse yet what happens if its a 30+ lb Turbine Jet flying in excess of 200 mph hits a crowd due to a heat failure and 1 more people are seriously injured or dead??????????? Even a small glow or powerful electric if gone out of control due to a FASST heat failure could kill someone Are you still going to call the issue "quite well over blown if this happens?

Since none of what you wrote has actually happened I must ask if you know what a scare-monger actually is? Your post fits right in with it.

Main Entry:
scare·mon·gerr
Pronunciation:
\-ˌməŋ-gər, -ˌmäŋ-\
Function:
noun
Date:
1888

: one inclined to raise or excite alarms especially needlessly

Meanwhile if you think just by flying 72 MHz you are somehow "safe" and immune from hurting or killing anyone, for a variety of reasons--many of which have nothing to do with the radio link--I'd say you are very mistaken.



--
Mike

[~SnApRoLl]

.....

[~SnApRoLl]

	Quote: Originally Posted by Tin man
	Do you always respond to people who didn't post in the thread, but instead were merely quoted by someone else? LOL... Since none of what you wrote has actually happened I must ask if you know what a scare-monger actually is? Your post fits right in with it. Meanwhile if you think just by flying 72 MHz you are somehow "safe" and immune from hurting or killing anyone, for a variety of reasons--many of which have nothing to do with the radio link--I'd say you are very mistaken. And where did I say that 72mhz was safe and immune??? I never said that did I? I have had my share of glitches just like everyone else. But the point I tried to make is the fact that there seems to be more issues with FASST failing due to heat whereas I have never had a heat issue with my 72mhz rx's . -- Mike

And yes I did respond to someone that didn't post here because maybe she will visit this thread!!

First of all I never said it happened!!! Could it happen? Yes!!! Have some common sense here,
If a FASST rx fails it could have very bad results!!

And you said my post post fits right in with the "scare-monger's" well guess what? Unless your too blind to notice here, But there is a cause for concern and excitement and maybe even some alarm because the issues that FASST is haveing can (and I will say it again) can have very bad and even deadly results!!.


Now if your posting here because you just need to up your post count, Go somewhere else!

[canavanbob]

I think it is perfectly obvious that Futaba has concluded that that the receiver design is crap and are desperately trying to come up with an improved design. Meanwhile, Jeti has receivers that are good from -10c to 85c with much more features and a lower price. If Futaba does not fix the problem by the first of the year I am going to switch.

[Tin man]

	Quote: Originally Posted by ~SnApRoLl
	First of all I never said it happened!!! Could it happen? Yes!!! Have some common sense here, If a FASST rx fails it could have very bad results!!

Not a scare-monger, huh?

You don't even have the system yet are sounding the alarm bells. Too funny.

Why don't you turn your energy towards something positive, like planning to spend all the money you win after winning the jackpot lottery 82 times? That could happen too ya' know.

	Quote:
	And you said my post post fits right in with the "scare-monger's" well guess what? Unless your too blind to notice here, But there is a cause for concern and excitement and maybe even some alarm because the issues that FASST is haveing can (and I will say it again) can have very bad and even deadly results!!.

You do realize that repeating something over and over doesn't make it any more correct, right? And parroting should be left to the parrots.

	Quote:
	Now if your posting her becuase you just need to up your post count

Says the guy who double-posted twice in one thread. Uh huh.

	Quote:
	Go somewhere else! or go fly your 27mhz Airhog!

"Go somewhere else?" Do you own this site now? News to me.

I happen to use FASST exclusively in 27% to 40% aircraft. Flew it all summer for 400+ flights in one of the hottest places in the USA. You'll have to excuse me for not taking your posts seriously.

[MikeC3D]

I love it.....

[Tin man]

	Quote: Originally Posted by canavanbob
	I think it is perfectly obvious that Futaba has concluded that that the receiver design is crap and are desperately trying to come up with an improved design. Meanwhile, Jeti has receivers that are good from -10c to 85c with much more features and a lower price. If Futaba does not fix the problem by the first of the year I am going to switch.

I am afraid I ain't buying your "perfectly obvious" conclusion. This child-like poll is similar to asking:

Do you still beat your wife?

1.) Yes, it's perfectly factual.

2.) No, I stopped.

3.) That's just the ex-wife talking!



--
Mike

[canavanbob]

Rather than face the truth you just change the subject with some idiotic camparison. If you don't like the poll go somewhere else. I don't really care if you don't agree with my conclusion, but I have just as much right to express myself as you do.

[jonnyisback]

really its a personal choice, if you dont like the system that you are flying why not just switch?