START HERE |
|
Register | FAQ | PM | Events | Groups | Blogs | Calendar | Mark Forums Read |
Unregistered
|
JR and Spektrum Radios and Electronics JR and Spektrum Radios, Gyros, Servos, Etc. |
|
LinkBack | Thread Tools | Display Modes |
02-09-2012, 08:20 PM | #1 (permalink) |
Registered Users
Join Date: Aug 2011
|
Spekctrum DX8 "auto crash" feature
hi everyone, this week has sucked for me. on monday my 600E Pro exploded from a boom strike, but it was in a hover.... then today, SAME thing with my Aeolus. I'm not a happy camper right now. I've talked to lots of people with more experience and they say it might be my transmitter losing signal making the swash go and bind and cause the boom strike. One person specifically told me that the DX8 was having some problems with that... i can't find a recall on spektrum... i'm going to call them tomorrow. the E Pro i thought was simply mechanical, because that would be the 8th time its gone in in less than 100 flights, then the Aeolus.... has to be radio right?
thanks |
Sponsored Links | |||
Advertisement |
|
02-09-2012, 08:31 PM | #2 (permalink) |
Registered Users
Join Date: Feb 2011
|
Sorry to hear that man. That sucks. There have been some recalls on the DX8. Here is a link to the bulletins so that you can check your PID to see if you need to send it in: http://www.spektrumrc.com/Products/S...ProdId=SPM8800
__________________
Lynx Heli Innovations Team Pilot Gaui X5 and X2, Oxy 3, Blade NCPX, MCPX, 130X, 180CFX, 450X, 600X Various planks |
02-09-2012, 08:43 PM | #3 (permalink) |
Registered Users
Join Date: Dec 2011
|
hey there, i dont fly a dx8 but my best friend does and he is going through the same thing. the transmitter has caused the last 4 crashes. we think part of it is the transmitter battery. his is definitely bad. but i know that spektrum had a recall at some point because another friend sent his back. anyway, id be careful and get in touch with spektrum because my friend has had 3 crashes in the last 2 weeks and the only explaination is the dx8. one thing you can do is next time you fly, before and after the flight look at the receiver and if the light on the reciever is blinking then there was some sort of disruption in the connection. sorry i dont know more. good luck. happy flying.
|
02-09-2012, 09:32 PM | #4 (permalink) |
Registered Users
Join Date: Jun 2008
|
You guys gotta be kidding.
__________________
Too many helis & Too many planks Lots of DX radios & A couple Futaba 72mhz radios AMA member & Full scale plank driver HELIFREAK !!! |
02-10-2012, 02:03 PM | #5 (permalink) |
Registered Users
Join Date: Apr 2006
|
"Aerocal", sometimes all I can do is shake my head about some of the stuff I read here. I guess time will tell if my new DX-8 is the POS that some people seem to think...
__________________
Bill Rainey AMA 16192 Huntsville, AL T-Rex 600N Pro, miniTitan E360 |
02-10-2012, 02:07 PM | #6 (permalink) |
Registered Users
Thread Starter
Join Date: Aug 2011
|
Just a suggestion for all you DX8 owners, if you have a crash the seems like it was caused by mechanical failure... Don't fly anymore!!
|
02-10-2012, 02:30 PM | #7 (permalink) |
Registered Users
Join Date: Jun 2008
|
Dang I never would have thought that my radio was responsible for a flybar paddle separating from the heli inflight and causing a boomstrike. I guess since that is the case it could also cause a ballink to fly off too.Maybe it also caused my taildrive gear to strip.This explains a whole lot of the problems Ive had over the years.I must have been looking at this from the wrong perspective.
__________________
Too many helis & Too many planks Lots of DX radios & A couple Futaba 72mhz radios AMA member & Full scale plank driver HELIFREAK !!! |
02-10-2012, 02:34 PM | #8 (permalink) | |
Registered Users
Join Date: Jun 2008
|
Quote:
Ive been flying mine for a year and a half.I guess it must be a fluke of nature that I havent had any major issues.
__________________
Too many helis & Too many planks Lots of DX radios & A couple Futaba 72mhz radios AMA member & Full scale plank driver HELIFREAK !!! |
|
02-10-2012, 02:47 PM | #9 (permalink) |
Registered Users
Thread Starter
Join Date: Aug 2011
|
It could be so many things. I use mine hours DAILY! it could be something that just has worn out. Or it's gotten accidentally roughed around some and damaged.
@aerocal- I don't know how hard you fly or anything, but I do know that tail gears can go on their own, especially in the cold and depending on their age. And the flybar paddle just wasn't secured all the way. It COULD be the transmitter but those sound more of actual failures. I had my tail gears blow on new years day in the 600N 3G doing piro flips, just cold and they're under tons of stress. Thanks |
02-10-2012, 03:09 PM | #10 (permalink) |
Registered Users
Join Date: Nov 2009
|
And the corollary of 'If you don't know what the problem is, it must be the radio'
__________________
Thou shalt maintain thy altitude and thy airspeed, Lest the ground reach up and smite thee.... |
02-10-2012, 03:17 PM | #11 (permalink) |
Registered Users
Thread Starter
Join Date: Aug 2011
|
i'm not saying just cuz i don't know what happened exactly its the radio... but the same thing happening to two different birds? and the first crash was a 250 and it went CRAZY before I hit throttle hold and it crashed... two identical crashes following a 250 going crazy isn't mechanical. on the ground the 250 looked as though the servo horn screw had come out. didn't thik anything more of that. the 600E Pro went in for its eighth time, just thought "mechanical, its cursed" then the aeolus doing the same as the E Pro makes me think differently...
|
02-10-2012, 03:52 PM | #12 (permalink) |
Registered Users
Join Date: Apr 2010
|
IF the DX8 caused the failure the most likely culprit would be "un-commanded movements" that were covered under two separate service bulletins.
Were you using the vibe alarm? I have seen reports (and videos) of un-commanded servo movements as a result of the vibe alarm even in radios NOT listed in the service bulletin. The simple test is to set the vibe alarm an see if the swash moves as a result. You can also check you pots by slowly moving the sticks while watching the monitor screen. I tend think that if the DX8 lost signal it is unlikely to have cause the catastrophic failure that you described, unless the failsafes were set poorly. Also, if you experienced a signal loss due to interference, the receiver should have indicated this with a flashing led (hold indicator). A loss of signal could also have been caused by a brownout. If you were operating in DSMX mode, then the receiver will not indicate whether a brownout has occurred. It really is not foolish to be suspicious of a radio that has had such a "troubled" history. Trust is a tricky thing... |
02-10-2012, 04:01 PM | #13 (permalink) |
Registered Users
|
I have about 1200 or so flights on my dx8 (flying 6 helis with it). Not a single glitch.
|
02-10-2012, 04:24 PM | #14 (permalink) |
Registered Users
Thread Starter
Join Date: Aug 2011
|
Yea, it could be so many things! it's so frustrating some times! both 600's landed with the power off... the electric BEC had the wired from the battery ripped out (the battery and BEC were still mounted to the bird which is wierd) and the aeolus, the aling 2-in-1 just doen't work anymore. but still, happening to three birds in one week screams TX. becasue, no joke or exaggeration. hovering, boom. you could blink and itd be gone. both times. boom strikes don't just happen from hover!
|
02-10-2012, 05:15 PM | #15 (permalink) |
Registered Users
Join Date: Jun 2008
|
They sure dont.I found that when a link flies off they generally happen everytime though.I had one when a flybar paddle flew off and I was fighting to keep it level and get it down.
Any catastrophic mechanical failure on the head inflight is generally very exciting.
__________________
Too many helis & Too many planks Lots of DX radios & A couple Futaba 72mhz radios AMA member & Full scale plank driver HELIFREAK !!! |
02-10-2012, 07:09 PM | #16 (permalink) | |
Registered Users
Join Date: Jul 2011
|
Quote:
__________________
Blade 4503D, MCP-x, MSRx, MCX2 Dx8 Align T-rex 450 BeastX FBL T-rex 500EFL I V-bar mini T-rex 500EFL II BeastX T-rex 600EFL V-bar T-rex 700E V-Bar |
|
02-10-2012, 07:16 PM | #17 (permalink) |
Registered Users
Thread Starter
Join Date: Aug 2011
|
Both birds were flybarred. Never had a FBL issue besides my system being poop so I went flybarred. It was 45° out. That could have done it if it was mechanical.... But both birds doing it? How unlikely is that?! Nothing makes 100% sense
|
02-11-2012, 09:34 PM | #18 (permalink) |
Registered Users
Thread Starter
Join Date: Aug 2011
|
Another super bizarre thing that also screams radio glitch is that both helis have ALL their gears in perfect conditions. Sinario being the radio caused my swash to slam in a binding position causing the boom strikes but also killed my throttle channel. I noticed on the simulator just the other night my TX wouldn't let me start the timer. Then five minutes later the timer worked fine. It's sent out to spektrum already.
|
02-12-2012, 12:44 AM | #19 (permalink) | |
Registered Users
Join Date: Apr 2010
Location: Canada
|
Quote:
__________________
Kasama Faifa FBL, Kontronik 700-52L, Kosmic 160HV, Bavarian Demon 3SX. JR Servos. RJX Hobby Vector 700 Speed Limited Edition, Scorpion 4530-540, Scorpion 160HV SBEC, S9352HV Servos, Bavarian Demon 3SX. |
|
02-13-2012, 10:27 AM | #20 (permalink) | |
Registered Users
Join Date: Jul 2011
|
Quote:
|
|
Thread Tools | |
Display Modes | |
|
|