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07-10-2008 09:48 PM  9 years agoPost 1
Disciple4123

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07-10-2008 11:04 PM  9 years agoPost 2
Disciple4123

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07-11-2008 04:50 AM  9 years agoPost 3
clay454

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i have experienced similar issues on ground and takeoff. therefore i only engage right after takeoff. no problems then. sorry so sloppy. driving to job in northern mochigan,

clay

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07-11-2008 04:59 AM  9 years agoPost 4
Griffo

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I have also experienced this when engaging horizontal mode (although the heli didn't bank hard, it just drifted faster and faster). I've tried autotrimming countles times but it's still a problem. I sent an email off to HC but never got a reply.

I'm now considering buying back my AP2000i.

I wonder if this may be a problem with the latest firmware? What firmware do you have and how old is the unit?

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07-11-2008 05:11 AM  9 years agoPost 5
Disciple4123

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The unit is from 1-2008.
The firmware is 1.34.3.0

It would stand to reason to engage some HOR prior to takeoff to prevent RIGID from maintaining an off angle and tilting abruptly when lifting off, now that I have had problems, I may do things differently. I should have left it in hard tilt, not autotrimmed it, and taken readings off of the computer on autotrim, see if the values were pegged. Perhaps spoolup vibrations mess with it, like the Micropilot autopilots that completely render themselves useless when the pull cord is started

I will re-iterate though, the final flights of the afternoon were flawless.

We need HC to establish a runryder identity to help us.

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07-11-2008 05:53 AM  9 years agoPost 6
nooobs

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07-11-2008 08:11 AM  9 years agoPost 7
Griffo

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Thanks Noobs, yes I understand that. Position mode is useless and I have taped the sensor. I just find the AP2000i did a much better job of keeping the heli level and I knew that once I locked in calibration the AP2000i would hold rock solid in that attitude.

The HC unit appears to be unpredictable in how level it decides to keep the heli. It'll hold the heli perfectly horizontal one moment, then I'll fly around, hover again and re apply horizontal gain and it'll head off in a direction of it's choosing.

All tests have been in zero wind conditions and there is no payload movement in flight so I know that is not a factor.

Eric, yes mine has the same firmware and build date. Interesting.

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07-11-2008 03:54 PM  9 years agoPost 8
trackhead

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Griffo,

I attributed my problems last winter with the HC to static build up and not proper grounding of the tail boom. Of course, who the heck really knows. But when I regrounded the boom, no more problems.

Last week in Aspen, after crashing into a tree and rebuilding the heli I had a bent motor shaft. I didn't realize it at the time, but the bent shaft was causing some sort of gnarly RF that also caused the HC to act very strangely. Eventually I swapped the motor out, and all was fine.

The HC works best in slow flight, or hovering. After fast forward flight, banks, etc, it does not put the heli back to a perfect hover. I mainly use it as an assist to help me fly a little further beyond my visual comfort range.

Anyway, not sure if any of that helps.

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07-11-2008 04:55 PM  9 years agoPost 9
Disciple4123

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I run double ground straps on the tailboom (incase one breaks). Yesterday was hazy humid, so static, if present, should have been dissipated.

I guess we can conclude that the HC is rather static sensitive. I had a hard roll right (crash) in the winter when runnign twin engines, and since went to a single. Perhaps they can work that out, I hate to see minor lingering problems in an otherwise good product. With the economy right now I won't be going Carvec for a while, I thought 2007 was going well with AP, but 2008 is near hibernation around here

Noobs: My Rigid runs at 7/7 with the servo balls 13.5mm out (sensitivity is directly related to servo ball location of course) I can get away with 8/8, but it's a little smoother and still solid at 7/7.

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07-11-2008 05:00 PM  9 years agoPost 10
nooobs

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07-11-2008 05:10 PM  9 years agoPost 11
trackhead

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Noobs,

I'm not catching your drift on static/foil?

What are you doing?

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07-11-2008 05:16 PM  9 years agoPost 12
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07-11-2008 05:34 PM  9 years agoPost 13
Disciple4123

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07-11-2008 06:58 PM  9 years agoPost 14
trackhead

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Yeah, I had the worst glitches in winter, when flying up in the mountains.

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07-11-2008 10:28 PM  9 years agoPost 15
wjw

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Those weren't glitches, just too cold to feel your fingers

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07-11-2008 11:32 PM  9 years agoPost 16
Griffo

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Melbourne / Canberra, Australia

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Thanks guys this is all very helpful info. I have grounded the tail to the boom but that's it. I'm flying the Logo600 with plastic frames so I never thought this could be a problem. I'll make a few adustments and see what I find.

Track, yes I think you're right. The HC never holds a level hover after forward flight. It seems to put the gyros off centre.

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07-11-2008 11:41 PM  9 years agoPost 17
tech1

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I'm not so sure about tail blades etc. build up enough charge to be a problem. Static builds up faster when 2 different materials are rubbed together. Your tail belt is a big contributor which is why it is recomended to ground the tail boom to the main frame of your heli.
The idea is to keep the entire heli at the same charge level. That way there will be no potential difference to initiate sparks.

Plastics can be made conductive so that the case takes the discharge instead of the internal electronics. (same as wrapping the part in foil) Don't quote me here but I think I read about the GY401 using this.

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07-18-2008 08:54 AM  9 years agoPost 18
DEMONjoe

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Germany

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Hey guys,

seems I am too late, everything is discussed already and the main point (statics) is mentioned too. So, Eric, did that solve your problem? Cause this really is the one reason for the HC (or more concrete the servos!) acting that strange: electrostatic charge. See also manual page 17: "Electrical earth".
Second issue: yes, the internal horizon can drift after faster flights, turns, etc.. This is also mentioned in the manual. But after holding the HC for a few seconds, the drift should disappear again and the HC should work as desired again. For trimming please see manual pages 30/31. There are some hints that should help you.
And also described totally correct already: the horizontal mode will never keep the heli fix over one geographical point! This is the job of the position mode only. And that is also why the HC is not named a real auto-pilot as the heli does not become a fully controlled UAV by using the HC. The HC is a stabilisation help, kind of an assistant, as mentioned by trackhead already. Without reference points like GPS (a little too imprecise) or other possible systems for example with a reference signal from a ground unit, it will not be possible to create the perfect virtual horizon. But I think the HC does a good job in general.

Griffo: If there was a not answered mail, please send it again as I did not get any mail from you regarding this and, sorry, unfortunately I do not find lots of time to read in here

Cheers,
Joe

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07-18-2008 09:04 AM  9 years agoPost 19
Griffo

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No worries, thanks Joe. I'll resend it.

I've removed the HC unit from my AP heli and replaced it with the AP2000i. I can't have the horizon level drifting on me as I climb for altitude.

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07-18-2008 01:35 PM  9 years agoPost 20
Disciple4123

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