Dang man
01-02-2011 | 10:30 PM
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From: , AK
Dang man
Plane lost control today. No response from radio, plane nose dived 1000 ft into the ground. Pieces everywhere. Flying a T28 Trojan that has been awesome. I'm using a DX5 radio from the Apprentice kit. Has worked fine several times. After the crash, I tried the controls and they all worked. Albeit, in pieces. What happened? I'd like to upgrade to the p51 by eflite, but should figure out why this kind of thing would happen first. Thanks.
01-03-2011 | 07:49 AM
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From: , AK
RE: Dang man
It had only been in the air for a few minutes. Usually when the battery goes, I still have control of the plane, just no power. Why was it working after it was in pieces?
01-03-2011 | 02:52 PM
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From: Lakeland,
FL
RE: Dang man
Which receiver? Sounds like the infamous "brown out" on Spektrum.
Voltage drop, receiver goes into reboot, no control, plane crashes, system works fine when you check it.
Any flashing light on the receiver? The newer ones will flash if there was a brown out situation.
Voltage drop, receiver goes into reboot, no control, plane crashes, system works fine when you check it.
Any flashing light on the receiver? The newer ones will flash if there was a brown out situation.
01-03-2011 | 03:03 PM
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From: green bay,
WI
RE: Dang man
I dont trust spektrum after I was buddy boxing my dad on his alpha 40 with two DX5E's and on the 3rd flight of the day the plane started doing all kinds of crazy stuff on its own and the throttle started pulsing up and down like crazy,couldn't do anything but watch it loop/twirl its way into the woods listeninng to the engine go back and forth from idle to WOT over and over. I read alot about spektrum and needing more battery for a regular rx but I figured if he kept them charged up and we were only on the third flight this stuff is junk. Also The dx5es we were using only use 4 aa batteries(he had spektrum brand rechargables in them).But this was always suspect to me as well.Oh well,lesson learned I will never buy spektrum anything(or jr).I have had good luck with airtronics(curently using) and futaba.</p>
01-03-2011 | 03:19 PM
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From: Denver, CO
RE: Dang man
Let the Spektrum bashing begin....
FWIW, I've never had a single problem with my DX6i, Ar500, Ar6200, and Ar6110e. Nothing, nada, zippo but flawless performance. I've used 4.8V, 6V, and lipo batteries with no issues whatsoever. I also used it with a BNF Blade Heli with zero issues and that is using a 1S 3.7v lipo.
FWIW, I've never had a single problem with my DX6i, Ar500, Ar6200, and Ar6110e. Nothing, nada, zippo but flawless performance. I've used 4.8V, 6V, and lipo batteries with no issues whatsoever. I also used it with a BNF Blade Heli with zero issues and that is using a 1S 3.7v lipo.
01-03-2011 | 04:13 PM
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From: Lakeland,
FL
RE: Dang man
ORIGINAL: DenverJayhawk
Let the Spektrum bashing begin....
FWIW, I've never had a single problem with my DX6i, Ar500, Ar6200, and Ar6110e. Nothing, nada, zippo but flawless performance. I've used 4.8V, 6V, and lipo batteries with no issues whatsoever. I also used it with a BNF Blade Heli with zero issues and that is using a 1S 3.7v lipo.
Let the Spektrum bashing begin....
FWIW, I've never had a single problem with my DX6i, Ar500, Ar6200, and Ar6110e. Nothing, nada, zippo but flawless performance. I've used 4.8V, 6V, and lipo batteries with no issues whatsoever. I also used it with a BNF Blade Heli with zero issues and that is using a 1S 3.7v lipo.
And you can't say Spektrum hasn't had their problems with voltage issues. Apparently you don't remember the first brown out fix, add a capacitor to the rx to help with voltage sag. It's still available. Or how bout a personal one, one where the tx after making a setting change would hunt back and forth between the old and new settings unless you rebound the rx, and sometimes even that didn't fix it. Many a retract servo went to an early grave over that one.
And remember he has the most basic one in the line other then the RTF tx's. They have their limits too that aren't as good as the 6i. Range is much different, the 5 is a park flyer set up only, heck if he got it out far enough it could have lost the signal. Or weak batteries in the transmitter which reduces the range. Or even a weak pack in the plane which does you know what when the voltage sags below the rx's threshold.
Not bashing just giving them possible things that could have caused a problem with the items they listed that were being used.
If they had a 72 system, no reboot,but can go into a fail safe, and if it's not set plane does what ever it feels like, no matter what you do with the tx. But weak batteries will cause a loss of transmitter range, or an rx to shut down because the esc or rx pack isn't providing enough power in them too.
If they are using a limited range tx, all it takes it a little too far out and bye bye plane. And the 72 can have hits/ interference issues.
So there you go, both sides, some problems that can happen to each, but since we are talking 2.4 that's all I listed originally. And who knows what rx they had? It could have been one of the old AR6000's with a 1500 foot range.
01-03-2011 | 09:55 PM
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From: Denver, CO
RE: Dang man
I know you're not bashing specifically, but the post following yours is certainly bashing Spektrum by calling it junk, never buy Spektrum again, etc. etc. I also very much remember the first brown out fix. It was nearly anarchy around here for 6 months whenever the subject of Spektrum was brought up. But you have to admit that nearly every crash where Spektrum RXs are onboard is almost instantly blamed on the Spektrum equipment. No matter what, it has to be a Spektrum issue. I'll bet dollars to donuts that 99% of crashes blamed on Spektrum malfunction is either mechanical failure or pilot error (i.e...didn't adequately charge rx battery, ect.).
I agree radio malfunction is possible in this case. But I think it's likely that something else was the cause. There's several videos comparing a brown out recovery of Spektrum vs Futaba receivers and the Spektrum was quicker every time. You're right though that we don't know what rx was in use. I think most T28s came with an AR500 and I'll bet there aren't many of the older AR500s still out there without the updated software fix for brown out recovery. If I had an older AR500, I would certainly send it in to Horizon for free replacement.
I simply charge my RX batteries and TX for at least 12hours before flying and I've never once had a problem. I also put on a $1 voltwatch from Hobbyking on my bigger nitro model and I've never had a problem with greater than 5 flights at 12 minutes each.
OP stated DX5. I'm guessing he meant DX5e, which is a full range TX.
I agree radio malfunction is possible in this case. But I think it's likely that something else was the cause. There's several videos comparing a brown out recovery of Spektrum vs Futaba receivers and the Spektrum was quicker every time. You're right though that we don't know what rx was in use. I think most T28s came with an AR500 and I'll bet there aren't many of the older AR500s still out there without the updated software fix for brown out recovery. If I had an older AR500, I would certainly send it in to Horizon for free replacement.
I simply charge my RX batteries and TX for at least 12hours before flying and I've never once had a problem. I also put on a $1 voltwatch from Hobbyking on my bigger nitro model and I've never had a problem with greater than 5 flights at 12 minutes each.
OP stated DX5. I'm guessing he meant DX5e, which is a full range TX.
ORIGINAL: Glacier Girl
Not bashing, the person has a problem, is looking for answers, I gave them a possible scenario.
And you can't say Spektrum hasn't had their problems with voltage issues. Apparently you don't remember the first brown out fix, add a capacitor to the rx to help with voltage sag. It's still available. Or how bout a personal one, one where the tx after making a setting change would hunt back and forth between the old and new settings unless you rebound the rx, and sometimes even that didn't fix it. Many a retract servo went to an early grave over that one.
And remember he has the most basic one in the line other then the RTF tx's. They have their limits too that aren't as good as the 6i. Range is much different, the 5 is a park flyer set up only, heck if he got it out far enough it could have lost the signal. Or weak batteries in the transmitter which reduces the range. Or even a weak pack in the plane which does you know what when the voltage sags below the rx's threshold.
Not bashing just giving them possible things that could have caused a problem with the items they listed that were being used.
If they had a 72 system, no reboot,but can go into a fail safe, and if it's not set plane does what ever it feels like, no matter what you do with the tx. But weak batteries will cause a loss of transmitter range, or an rx to shut down because the esc or rx pack isn't providing enough power in them too.
If they are using a limited range tx, all it takes it a little too far out and bye bye plane. And the 72 can have hits/ interference issues.
So there you go, both sides, some problems that can happen to each, but since we are talking 2.4 that's all I listed originally. And who knows what rx they had? It could have been one of the old AR6000's with a 1500 foot range.
ORIGINAL: DenverJayhawk
Let the Spektrum bashing begin....
FWIW, I've never had a single problem with my DX6i, Ar500, Ar6200, and Ar6110e. Nothing, nada, zippo but flawless performance. I've used 4.8V, 6V, and lipo batteries with no issues whatsoever. I also used it with a BNF Blade Heli with zero issues and that is using a 1S 3.7v lipo.
Let the Spektrum bashing begin....
FWIW, I've never had a single problem with my DX6i, Ar500, Ar6200, and Ar6110e. Nothing, nada, zippo but flawless performance. I've used 4.8V, 6V, and lipo batteries with no issues whatsoever. I also used it with a BNF Blade Heli with zero issues and that is using a 1S 3.7v lipo.
And you can't say Spektrum hasn't had their problems with voltage issues. Apparently you don't remember the first brown out fix, add a capacitor to the rx to help with voltage sag. It's still available. Or how bout a personal one, one where the tx after making a setting change would hunt back and forth between the old and new settings unless you rebound the rx, and sometimes even that didn't fix it. Many a retract servo went to an early grave over that one.
And remember he has the most basic one in the line other then the RTF tx's. They have their limits too that aren't as good as the 6i. Range is much different, the 5 is a park flyer set up only, heck if he got it out far enough it could have lost the signal. Or weak batteries in the transmitter which reduces the range. Or even a weak pack in the plane which does you know what when the voltage sags below the rx's threshold.
Not bashing just giving them possible things that could have caused a problem with the items they listed that were being used.
If they had a 72 system, no reboot,but can go into a fail safe, and if it's not set plane does what ever it feels like, no matter what you do with the tx. But weak batteries will cause a loss of transmitter range, or an rx to shut down because the esc or rx pack isn't providing enough power in them too.
If they are using a limited range tx, all it takes it a little too far out and bye bye plane. And the 72 can have hits/ interference issues.
So there you go, both sides, some problems that can happen to each, but since we are talking 2.4 that's all I listed originally. And who knows what rx they had? It could have been one of the old AR6000's with a 1500 foot range.
01-03-2011 | 11:04 PM
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From: , AK
RE: Dang man
DX5e radio, AR500 Receiver. The DX5e radio is from the apprentice kit I bought this fall. Apprentice is still fine. A crash like this would have ended that one I think. The T28 is a little more stoutly built. I'm still replacing the fuse though because it is deformed, which seems worse than a break at this point. I can't unform the deform. Is the mistake running the dx5e radio with the t 28? Is the AR 500 a crap receiver? The plan is to rebuild the t 28 with maybe a stronger motor, better receiver (based on what you guys recommend) and start saving up for a solid radio as I'd really like one I can fly safely with several different planes.
Thanks for your insight all.
Thanks for your insight all.
01-04-2011 | 06:18 AM
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From: Billingsley, AL
RE: Dang man
If he was really 1000ft out, the plane would have been invisible. I saw a club member crash two planes using one of the smaller Spektrum receivers. Both planes went out of range at approx. 600ft out. I know because I have measured the distance with my laser rangefinder. The Cub was getting small at that distance. I was flying/trimming the little Cub of his for him when it dove straight in. I didn't know that he had used a park flyer receiver. It says full range but don't believe it. He had crashed the 40 trainer a few days before at about the same distance. I don't know which ones they were, but he had removed them from some small foam types and installed them on glow planes. I personally use all Spektrum modules with AR900s and no problems in my 33% sizes. I also have an AR700 in my 78in Decathlon.
01-04-2011 | 07:23 AM
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From: Denver, CO
RE: Dang man
ORIGINAL: emark6
Is the mistake running the dx5e radio with the t 28?
Is the mistake running the dx5e radio with the t 28?
ORIGINAL: emark6
Is the AR 500 a crap receiver?
Is the AR 500 a crap receiver?
