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HelicopterFlybarless Rotor Head SystemsV-Bar › SilverLine Tail Kicks - SOLVED!
06-10-2012 04:35 PM  5 years agoPost 1
bkervaski

rrElite Veteran

Birmingham, AL, USA

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Hey guys, anyone else experiencing random tail kicks with the new SilverLine sensors?

I have two of them, both helis are randomly kicking the tail out to the right about 30 degrees then grabbing. It's not like a blow out, it can happen in any maneuver.

What's odd is one of them did it from the get go, the other just started doing it after about 15 flights.

Both helis identicaly, Synergy E7's @ 8.4v regulated (Hercules BEC). No vibrations or anything, both helis have been flying perfectly with the BlueLines.

I find it hard to believe I have two bad sensors but I ordered another one to test with in any case.

Team Synergy Factory Specialist / Scorpion / Thunder Power / Byron's Fuels

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06-10-2012 05:24 PM  5 years agoPost 2
Individual1

rrApprentice

Florida

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Firmware
Are you running 5.2 or 5.3?

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06-10-2012 05:29 PM  5 years agoPost 3
bkervaski

rrElite Veteran

Birmingham, AL, USA

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Did it with both versions.

Team Synergy Factory Specialist / Scorpion / Thunder Power / Byron's Fuels

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06-11-2012 09:49 AM  5 years agoPost 4
MrMel

rrProfessor

Gotland

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Check the log first.
Doubt it's the sensor.

If you have belt on it, Spraying belt with silicon is first thing I would test. (Static)

Secondly, the silverline sensor is less vibration prone, BUT also it has higher resolution, meaning it can pick up and act "more" on certain vibes.

For sample my tail looked like I was flying a rough running nitro, on my Logo 600, it was a combo, the stock tape was a bit soft and I had bad tracking, so the low freq vibe was enough.
I pretty much hardmounted the sensor and it's perfect, even with vibes, fixed the tracking and it was utterly flawless.

Do note, you can raise gain on the new sensors as they have higher resolution.

Gone fishing..or hunting..or something
My site: http://heli.dacsa.net - VBar videos and more

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06-11-2012 02:05 PM  5 years agoPost 5
panzlflyer

rrApprentice

Goldsboro,NC,USA

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Just for a test I mounted mine with softer 4010, 2 layers and it was worse than the Blue, put the stock style tape back and it was better.
No blowouts though.
My logs show the occasional extreme as always.

T700,450Pro,Spirit Pro,Beast+, Qav 500,Futaba18SZ

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06-25-2012 03:15 PM  5 years agoPost 6
bkervaski

rrElite Veteran

Birmingham, AL, USA

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Solved!

After isolating the wire and relocating the sensor this issue completely went away and I was able to raise my cyclic gain to 110 (vs 85 on the BlueLine) and 105 on the tail (vs 90 on the BlueLine) and you can definitely tell a difference in flight, rolls and flips are tighter and stops are more pronounced. Crack moves seem to be more consistent.

The VBar logging facility really helped with the troubleshooting, the error that was associated with the tail kick was "Sensor Data Checksum Error" which after a bit of research seems to mean the packets are arriving to the brain box corrupted, so RF of some kind.

At first this error was all over the log dominating it, meaning that a bunch of packets were never being processed (yikes!) after I relocated and isolate the sensor and wires the message completely went away.

After I solved the problem I packed the sensor wires back into my wire bundle for neatness and I noted an occasional "Sensor Data Checksum Error" (but it never caused an issue in flight) so I sprayed my main gear with a light coating of WD40 as an experiment and the error went away again, I'm guessing I need to service my motor bearings, KDE495 with a lot of flights.

I can see how it's easy to get analysis paralysis with the VBar logging (i.e., trying to get every error out of there) but as long as the errors are few and far between and there are no flight issues we probably shouldn't focus on the log too much.

Great upgrade! 5/5 stars, highly recommended.

Team Synergy Factory Specialist / Scorpion / Thunder Power / Byron's Fuels

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06-25-2012 04:42 PM  5 years agoPost 7
Ronald Thomas

rrMaster

Gainesville, Fl, USA

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Awesome, WD40 is petroleum based and attack plastics over time, I would use silicone oil like the Trinity oil I get from my LHS. Glad you got it!!!!

Team MikadoUSA 480XXTreme, 550SX, 600SX, 700XXTreme, 800XXTreme!!

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HelicopterFlybarless Rotor Head SystemsV-Bar › SilverLine Tail Kicks - SOLVED!
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