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T-REX 500 › TT
01-17-2009 10:59 PM  9 years agoPost 1
FlaG8r

rrElite Veteran

Florida

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any fellow 500 flyers got an extra TT they want to sell me? ESD talk has me thinking...

Life is tough, it's tougher if you're stupid

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01-17-2009 11:04 PM  9 years agoPost 2
Gyronut

rrProfessor

Martinsville In.

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You could just spray the belt and go fly. I flew mine all last year with just spraying the belt and only recently switched to the TT.

Never had any glitches.

Rick

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01-18-2009 12:12 AM  9 years agoPost 3
Ben-T-Spindle

rrProfessor

Central Illinois

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The newer kits don’t have a problem. Just keep flying.

... BTS

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01-18-2009 12:30 AM  9 years agoPost 4
dkshema

rrMaster

Cedar Rapids, IA

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The newer kits don’t have a problem.
I have a "newer kit", purchased back in early December. After two flights, the front end of the boom shows evidence of the belt rubbing still. There is very little clearance between the belt and the inside of the boom. I would not guarantee to ANYONE that the problem has been fixed.

I replaced mine with the TT, that's how I was able to look at the front end of the boom and make the determination.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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01-18-2009 12:55 AM  9 years agoPost 5
kingair

rrKey Veteran

Utah - USA

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internet forum paranoia strikes again. Just fly the thing and enjoy it. ESD doesn't hit most people. I live in probably the driest most staticy place in the US and never had any problem with my belt driven tail. I even use the dreaded 6200 RX and that works fine too, imagine that.

There is a very fine line between "hobby" and "mental illness."

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01-18-2009 01:39 AM  9 years agoPost 6
dkshema

rrMaster

Cedar Rapids, IA

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King -- this isn't internet paranoia. It's real. You, as with others have NOT had a problem. That's nice. But many others, HAVE. Even as Flag8tr's own "poll" suggests, it's real.
ESD doesn't hit most people.
Man, THAT's a comforting thought, something I'd be willing to risk close to a thousand dollars worth of heli on finding out....NOT!

Imagine getting on-board an airline's airplane with a sign above the door that says "Nine out of Ten of Our Flights Don't crash".

Would you get on, or find another airline?

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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01-18-2009 03:55 AM  9 years agoPost 7
kingair

rrKey Veteran

Utah - USA

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Man, THAT's a comforting thought, something I'd be willing to risk close to a thousand dollars worth of heli on finding out....NOT!

Imagine getting on-board an airline's airplane with a sign above the door that says "Nine out of Ten of Our Flights Don't crash".

Would you get on, or find another airline?
Are you seriously trying to compare the odds of crashing your toy heli with airline safety??? Like it or not there are only two types of toy helis, those that have crashed and those that are going to crash and there isn't thing one you can do about it. Throw all the money you want at it and it's still gonna crash. The 500 is unique though in that it's the only toy heli on the planet that ONLY crashes because of a direct result of ESD. Just read the fact filled forums and it's obvious that the 500 can't be dumb thumbed, have electronic fail other than related to ESD or have a mechanical failure. That's why I fly one, impossible to crash as long as ESD doesn't get me. I have to be honest though, at 125 flights or so I installed the torque tube but only because I had some money to throw at the thing, not because of any problems with the belt.

There is a very fine line between "hobby" and "mental illness."

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01-18-2009 05:21 AM  9 years agoPost 8
dkshema

rrMaster

Cedar Rapids, IA

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The point wasn't airline safety. If that's what you thought the point was, you may not be the sharpest tool in the box and the rest of this post will be academic.

The discussion has nothing to do with "dumb thumbing" the heli into the ground. No, it's not a given that a helicopter will crash. Calling it a "toy" doesn't dismiss the problem because you can't be bothered with reality.

At this point, there is more than enough solid evidence to determine that belt-generated electrostatic discharge HAS BEEN, and IS a problem with the 500. The evidence to date further suggests that various means of eliminating the discharges are successful. Belts being sprayed with anti-static spray, with silicone spray, with various forms of lube, having been coated with graphite from soft-lead pencils -- the once unpredictable helis suddenly become tame. People experiencing the problem install torque tubes, the ESD problem goes away.

After all, in your own post, you say "MOST" people don't have a problem with ESD in their 500s. That same argument admits that SOME DO. The only thing you can't quantify is what percentage is "most", what percentage is "some".

I guess "most" people isn't good enough for me. How do I know (how do YOU know) WHO will fit into the "most" category? Can you guarantee me or others that we won't be in that "some" category?

I've flown a LOT of helis with belt-driven tails over the years, never had a problem. But then I've also NEVER seen any posts about those helis HAVING this problem. But almost from the first day the 500 began shipping in quantity, there were reports of them simply falling out of the sky for no reason. All with the same symptoms, all with the same result. Eventually, the cause was determined. And as a result, you don't HAVE to risk being shot down by ESD with each flight. With all the things that CAN go wrong as you say, why simply ignore one that's completely preventable?

I was a skeptic when I first read the reports, even making posts to that effect.

Sure, you've had 125 glorious flights without incident. Others have too. But then, not all 500s are trouble free. You don't know that your next flight won't come back to bite you with absolute certainty with respect to being shot down via ESD.

Were you flying any other helicopter and experiencing glitches in the radio, would you continue flying, or would you try to fix the problem before flying again? Or do you simply assume that because all helis are destined to crash, that you can ignore the obvious and continue to tempt fate?

No one has ever stated that the 500
ONLY crashes because of a direct result of ESD
.

That has never been an argument anywhere. To suggest so simply makes you look a fool. To also try to lessen the "danger" by referring to these as "toys" does nothing to lend credibility to your argument.

I don't understand why you're so adamant about defending the undefendable. I prefer not to risk my helis when I know there is a potential problem that I can eliminate beforehand.

I am happy for you that you have had 125 successful flights on your 500. Do you have any guarantee that number 126 won't be the one that shoots you down? And if you ARE shot down by an ESD event, will you simply laugh it off and dump your "toy" in the trash? I'll bet if it DOES happen to you, no one here will read about it.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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01-18-2009 06:15 AM  9 years agoPost 9
kingair

rrKey Veteran

Utah - USA

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you need a cookie!

There is a very fine line between "hobby" and "mental illness."

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01-18-2009 03:11 PM  9 years agoPost 10
Mefly

rrNovice

New Fairfield Ct

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two

Where's Carlos?

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01-19-2009 09:49 AM  9 years agoPost 11
Aaron1100us

rrApprentice

Cedar Rapids, Iowa

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Must say I have to agree with Dave, he does know what he is talking about. Why risk the chance of a problem? Even if I was loaded and could afford to fix a broken heli all the time, I would still try my best to avoid and problems that could occur.

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01-19-2009 07:11 PM  9 years agoPost 12
FlaG8r

rrElite Veteran

Florida

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wow, talk about a hijacked post!!!

Life is tough, it's tougher if you're stupid

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01-20-2009 02:52 AM  9 years agoPost 13
dave75d

rrKey Veteran

Jacksonville, FL

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yeah, but its a good way to raise your post count at someone else's expense!

ten grand in helis and all i can do is hover

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01-20-2009 05:01 AM  9 years agoPost 14
dkshema

rrMaster

Cedar Rapids, IA

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I hadn't intended to hijack this thread, and I don't post simply to increase the post count.

I believe the original hijack point was the "internet forum paranoia" post.

But, I hope Flag8tr77 found his TT.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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01-20-2009 05:11 AM  9 years agoPost 15
R38133

rrKey Veteran

USA

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WOW I need some milk with my cookie!!!!

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01-20-2009 05:40 AM  9 years agoPost 16
Tony Whiteside

rrKey Veteran

Shepherdsville, KY US

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if you spray it will go away if you dont
you could die at anytime, i was a hard head about it with my 450, i let it put me in about 5 times before i would believe it.

the crazy thing is everybody around me had 0 problems but not me, once i lubed poof problems gone. i hated my spectrum stuff, 5 brown outs and two Rx's go bad, but my luck is sucky, dont stand by me when om flying, might get you hurt. hit my self three times so far i would run the tt just so it will not be in the back of your head while flying.

now you boys play nice while im gone OK!!

Tony

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01-20-2009 09:44 PM  9 years agoPost 17
hovercraft

rrApprentice

USA

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Don't forget that the Align RCE-BL60G's bec has a severe voltage undershoot, when an increased current load is applied.

And if your are operating that bec at 5V, you will definitely increase your chances of a momentary RX undervoltage condition.

When I applied a 0.5A load to the RCE-BL60G BEC(stock from the box voltage out at 5V), the measured voltage output was 4.97V. When that load was increased to a total of 3A, the voltage output measured was 4.6V. But for a microsecond, the measured output voltage was 3.3V.

That is an undervoltage condition for an AR7000(min V is 3.5V), as well as other RX's.

The voltage undershoot is a characteristic of all "switching" regulators, but the RCE-BL60G's BEC has an undershoot that far exceeds any other switching regulator that I have tested.

FWIW

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01-21-2009 12:28 AM  9 years agoPost 18
jymkc

rrNovice

kansas city

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This is my first ever post on rr. I love the drama, keep up the good work..thanks to all.... IMO everyone is right, If it works for you GREAT
If it don,t--I'm not sure it can be fixed by bickering...

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01-21-2009 12:55 AM  9 years agoPost 19
Rockohaulic

rrElite Veteran

Canyon Country, CA, USA, 3rd Rock from the Sun

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I even use the dreaded 6200 RX and that works fine too, imagine that.
What the heck is wrong with the 6200 RX????

Saturday morning I flew my helicopter in my pajamas
How it got in my pajamas I'll never know

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01-21-2009 12:58 AM  9 years agoPost 20
Rockohaulic

rrElite Veteran

Canyon Country, CA, USA, 3rd Rock from the Sun

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I live in Southern CA, on my 4th or 5th flight with a belt (on a G-10 framed 500), I got an ugly static hit that spun the heli around. I got lucky and my $1000 bird was only 2 feet off the ground in a level hover.

I had sprayed my belt twice during the build with static gaurd, and I sprayed down the inside of the boom.

I replaced the belt right away with a TT kit.

Saturday morning I flew my helicopter in my pajamas
How it got in my pajamas I'll never know

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