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Old 07-31-2011, 03:42 PM   #81
wbplomp
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I would like to let you guys know. On my T-Rex 500, yesterday I switched over from FM2 to FM4. The heli now flies a bit more stable and I like it very much! Although I think the difference is much greater but I have only flown two flights with FM4.

As some of you guys probably know in the beginning I had some problems with the flight charactiristics with the CGY750 on my T-Rex 500. The roll rates and such where insane. I really needed to switch FM2 and also changed my ANG.Rate (advanced menu) for ALE and AIL to 90% to make it less nimble. Before that is was way to twitchy for me.

What did I do to improve this.
  • I updated to firmware v1.1.
  • I changed my Align blades to EDGE flybarless blades
  • I lowered the EXPO to -25% (in FM2 from -40% / in FM4 from -30%)
  • I lowered the ANG.Rate to 90% (in FM2) and 85% (in FM4)
That's actually it. No other tweaking at all. The only weird thing is. When I flew in FM4 for the first time with firmware v1.0 the roll rates where sooooo insane. I don't have that in FM4 now. Althoug I in the meanwile I changed the ANG.Rate to 85% and use EDGE blades.

THERE IS ONLY ONE PROBLEM LEFT
With hard pitch pumps. The heli does not go straight up and down. Like AIL on one side is a bit to late. My T-Rex 550 also has this behavior, but not that noticable. I don't mind.
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Old 07-31-2011, 04:42 PM   #82
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If you found the heli too twitchy, why did you reduce the expo?

Steve
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Old 08-01-2011, 03:14 AM   #83
wbplomp
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Quote:
Originally Posted by Steve Evans View Post
If you found the heli too twitchy, why did you reduce the expo?

Steve
I did lower the ANG.Rate first to give it less cyclic pitch of course. With that default high EXPO the cyclic range is not linear. I don't like that at all. I find -40 or -30 a bit to much for my preference. See it like this, with a flybar model I always used to start at 0 and change that value only when needed.
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Old 11-08-2011, 01:38 PM   #84
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Someone tried the Function-Constant Delay Mode into AIL or ELE Expert menu? What will be the diference between them?
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Old 11-10-2011, 01:49 AM   #85
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Originally Posted by joaqui79 View Post
Someone tried the Function-Constant Delay Mode into AIL or ELE Expert menu? What will be the diference between them?
I'm not exactly sure as to the exact definition but i believe it has to do with how the heli responds based on speed...when in function the faster you go the faster the cyclic is while constant seems to keep it consistent. For me the setting it to Function made my heli insane...too hard to control for me. I'm hoping someone will explain the difference between Rate.Cst and Function/constant
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Old 11-10-2011, 04:54 AM   #86
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Hi Joe, I found something in the cgy750 manual on the rudder expert settings. The manual says that constant delay mode will be more linear and more agresive than function but im not sure if that definition apply for ail and ele too....
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Old 12-28-2011, 03:29 AM   #87
skytrekin
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Anyone have any experience with the sensor mode settings in the expert menus? The one that lists moderate, quick, and middle. Default is moderate.

Could this be that it controls response speed? The manual says it selects the response of the gyro sensor signal.

Any insight?

I have been having trouble getting the tail of my 600 pro to stop shaking after a control input. Stop boosting and stop delay haven't helped at all. Tail linkages are free, heli has about 10 flights on it. Tail gain set at 68%
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Old 12-28-2011, 02:28 PM   #88
Steve Evans
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Quote:
Originally Posted by skytrekin View Post
Anyone have any experience with the sensor mode settings in the expert menus? The one that lists moderate, quick, and middle. Default is moderate.

Could this be that it controls response speed? The manual says it selects the response of the gyro sensor signal.

Any insight?

I have been having trouble getting the tail of my 600 pro to stop shaking after a control input. Stop boosting and stop delay haven't helped at all. Tail linkages are free, heli has about 10 flights on it. Tail gain set at 68%
I suspect that this will relate to filtering being done on the sensor signal. If so, this would be useful to address issues of vibration. As it works fine in "moderate" mode I suspect most folks won't have messed with it.

Steve
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Old 08-30-2012, 10:34 AM   #89
PlaneHazza
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Quote:
Originally Posted by joe1l View Post
I

Roll Rate /ANG.Rate.
this setting adjusts the roll speed or flip speed and is set to 100% at default. If you are finding that your rates are too fast then you can slow them down here a bit. I experimented by lowering the value a bit and returning back and could see a immediate differences in my rates. If your roll/flip rates are too high, i would suggest coming here and just backing off the % a bit till it is to your liking.
So if I have 65% AFR on the swash menu for cyclics, but the roll and flip rate are still too slow for my liking, I could up these values a bit? I'm on the furthest out hole on the arms so I've got all the servo throw I can get.
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