Brownouts, Static, Issues,, what RX are you using...?

[OICU812]

There have been several posts and discussions about Brownouts and Static Issues "or thought to be". Also a few posts of "uncontrolled" events where the heli tipped forward or did something un commanded. Thing is it would be interesting to see an actual truthfull poll of what people have for a receiver in their helis when experiencing this.


Through multiple threads on mulitple sites I keep seeing AR6200 in the threads,,, not sure there really is an issue somehow with that particular receiver, but it is odd as it seems to appear more than others.


BTW I Love Spektrum it is all I fly. So I am not trying to bash anything in any way, the receivers, or the heli etc...

[Ctimrun]

This is a great poll. I did not vote because I have not actually had an issue myself. I use an AR7000. I recently grounded the frame, tail, and added a Jazz ESC, still no issues. I also fly DX7 and am happy with it, I am just attracted to the 2.4Ghz 9303.....It is calling to me. To spend the $ or not, Hmmm.

[kraaijer]

I never had a Brownout sofar, flying the Spektrum 6100 and the Module for the Futaba T12FG...
I've got no mods installed for grounding, I only spray the belt with silicon/teflon.

Ron

[OICU812]

Well at least if those who have had issues do post truthfully there might be an indicator here. Lets see what comes out of this after a few weeks.

[OICU812]

**bump**

[WiscHeli]

XPS showed a 900mhz Mod at AMA show and said it will work down to 1.5v .. and super fast reboots

[psindrup]

**bump**

???

[bl8zn]

Sorry...take away 1 vote from 72mz. I didnt read the "when experiencing Brownouts and Issues" Anyway...I'm running a Berg 7 receiver with my Stylus...no issues at all.

[OICU812]

???


Puts it up near top so to be viewed is all, cheers.

[carlos]

cant vote on this poll, no issues AR7000. That's not to say it won't happen.
Have grounded the -ve of the battery to make sure it doesen't happen.

[LONEWOLF2440]

no isues on ar7000

[Corwin]

Can you change the poll to add the option No Issues, be nice to see issues with each receiver compared to people with no issues at all.

[OICU812]

Can you change the poll to add the option No Issues, be nice to see issues with each receiver compared to people with no issues at all.


Sure, added in a few others, thanks for suggestion.

[Moreflying]

Had issues with the AR6200, but I can't say that it would not have happend with another spektrum in its place. Than being said, the AR6200 is the Rx I'm using...still. I have done mods and have not seen any issues since. I'll see about that holding true with more flying. I've got alomst an hour of flying in with no probs... I'm optimistic.

[Flybar-less]

No issues with my 6200, did coat the belt with Graphit 33 prior to build as a precaution against ESD. Never seen ESD affect a Spektrum reciever though.

I have seen 2 other 500s lockout. One was momentary with recovery, the other lasted until it hit the ground, about 100' altitude, lights on receiver were blinking. It seems there is some other evil force at work here!

[Jason Chow]

7 flights later, it has happened to me. stock align esc, stock align trex 500 setup, 3400g cyclic, metal tail, gy401 and s9254 tail, 2 kong power batteries and a ar7000 receiver. the helicopter was flying fantastic 2 flights in a row, i was praying for no brownout, lockout or glitching issue, so I would check every flight. about 3 minutes into the 3rd flight, i had a complete lock out, straight down tail first into the grass, wasn't too fun.

here are a few pictures: http://www.jchowheli.com/home/?page_id=58

it was flying so good to :bawl

[OICU812]

Sorry to hear of this Jason! :bawl

[lbz34]

Last week had the motor cut out twice on two different flights during rolls and flips, it came back pretty quick and no crashes. Just did the ground to mm/esc mod and no issues today in two flights. I am on 72 mhz 9chp.

[HeliBurns]

Now we have feedback from "the man"....

Jason, a couple of questions....

1) Was your motor mount grounded to your ESC negative?

2) What servos are your using when you had this problem?

3) What RX are you using when this occured? ( and not to put down anyones equipment )

Jason, your input is invaluable because you are not beholding to anyone and your flying skills are on par with JK and such...

It's very difficult for the "techies", not having your flying skills, but having perhaps "other" skills to come up with a series of solutions to this problem.....

There is the issue, Jason, that with the radical 3D that you demonstrate, that perhaps the flight load on your servos are such that their current draw momentatily exceeds the capability of the BEC......

Then there is the issue of "noise" that radiates from the CF frames because the motor case is not "grounded" to the neg. of the LiPo.......causing the frame to act as an antenna.....

Then, there is the issue of the "van de graff" effect of staic charge building up in the tail boom because the tail boom is electrically isolated from the Cf frame by means of a plastic tail boom block......

These issues are some sort of intermintent which is hard to determine exactly what is causing these problems....given that it's not due to wiring issues and such

[psindrup]

7 flights later, it has happened to me. stock align esc, stock align trex 500 setup, 3400g cyclic, metal tail, gy401 and s9254 tail, 2 kong power batteries and a ar7000 receiver. the helicopter was flying fantastic 2 flights in a row, i was praying for no brownout, lockout or glitching issue, so I would check every flight. about 3 minutes into the 3rd flight, i had a complete lock out, straight down tail first into the grass, wasn't too fun.
here are a few pictures: http://www.jchowheli.com/home/?page_id=58
it was flying so good to :bawl

Sir Jason

Sorry for your loss.

Have you done any of the two "common" anti static mods?

Have you sprayed you tail belt, either with silicone or Graphite 33?

Thanks a lot

Peter

[Jason Chow]

i have not unfortunately although ive read numerous posts on here already of those solutions. toping off with the 2nd flight of the day with no incidences, I had assurance on the 3rd flight which was its doomed flight :(

running 3400g cyclic
gy401 and s9254
5.0v on bec

stock motor, esc, metal tail boom

im so frusterated as i probably had it coming, but then again, ive seen many people fly without this incident. so what gives?

[robmoney]

After grounding the esc and running a Koolflight BEC I have had 20+ flights and this thing is rockin!

[HeliBurns]

rob, koolflight is only 3A....I don't follow the 5A for 5 mins( to me that means it'll fry)...but that's just me

[robmoney]

It is way higher amperage than you need. I run it also on my 600E that runs the 8717's. Works GREAT!

My 600E never peaks over 3 amps anyway!

You'll never have 5 amp pull for that long. The 600E peaks under 3 anyway!

[EKIM]

It seems the majority of you are using a dx7 or Spektrum based radio. I am using the 12z with the fasst module and have not had any issues. Almost all the guys at the field are also using fasst modules and none have had any problems. (No mods or sprays at all for any of us) Is it that the spektrum radios are more sensitve to this sort of thing? I'd like to keep this poll going to get some further info on this.