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Futaba CGY750 FBL System Futaba CGY750 Help and features Support Forum |
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05-28-2012, 01:07 PM | #1 (permalink) |
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750 Failure rate?
Ive been seeing more and more cases when the 750 is failing.
Have ya'll had any issues with it as of hardware failure? I have 2 an now I'm thinking of selling them to get vbars. Really dont want a heli to go crazy because of a FBL unit.
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05-28-2012, 01:31 PM | #2 (permalink) |
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Most likely pilot failure. lol
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05-28-2012, 02:29 PM | #3 (permalink) | |
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05-28-2012, 02:45 PM | #4 (permalink) | |
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Quote:
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05-28-2012, 05:04 PM | #5 (permalink) |
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I wonder about this. Is the FBL unit really failing, or are we just seeing links fail. I recently saw a heli that went nuts before it hit the ground. Upon inspection, a link was broken, so we're down to the chicken or the egg question. Did the link fail and the FBL unit was just trying to compensate? Or did the FBL unit fail and the link broke on impact. My personal opinion is the link failed and the FBL unit was compensating, producing the craziness in the air. Why do I think that? Because I have witnessed several link failures since I started flying helis in 2009. I have never witnessed a problem that I would blame on the FBL unit. Most weird FBL behavior that I have witnessed was ultimately blamed on vibrations. Once the vibrations were eliminated the weirdness stopped.
Let me be clear here, I am not stating that it's impossible for FBL units to fail. I'm simply saying it's far more likely for the mechanical side to fail. That is where I would initially focus were I to experience crazy behavior before a crash. Just my 2 cents. |
05-28-2012, 07:24 PM | #6 (permalink) |
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Where? At your field, or reading online. Mine's been going well since I got it back from futaba. Was getting sensor error.
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Hirobo Evo .50/Futaba 9C/OS 50 Hyper & Hatori/Radix/GV1/GY401&9254/9252s/Arizona Heli Canopy Trex 500 FBL/Futaba 8FGS/CGY750/CC ICE 75 & Scorp 1400 16T/Radix/9650s/9256 Trex 450 Pro/Futaba 8FGS/450M 14T/TP Blades/ 3156s/ Futaba GY520&9257 |
05-28-2012, 08:42 PM | #7 (permalink) |
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???? I have never got any other fbl units to compare to the 750 tail it excels in that department! I have had my fair share of setups also vbar,sk720,sk360,beastx,3g,tarot zyx. I have yet to see the other brands come close to the rotation rates and fff piros. All of the 750's at the field will piro in fff straight line the whole field out of the box no tweaking. All you have to do is go into forward flight hold rudder until you want to stop. All the other brands will go about 100ft and either start drifting or slow down out of fff.
Last edited by skew; 05-29-2012 at 05:41 AM.. |
05-29-2012, 05:16 AM | #8 (permalink) | |
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05-29-2012, 05:40 AM | #9 (permalink) |
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If you have read my post! I have tried multiple vbars mini, full sized, black and blue, on multiple helis. I even pulled off my 750 on my 600e and put a blue mini on it did trim flight ect. I sold it and put the 750 back on and instant perfect tail control nice and fast.
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05-29-2012, 08:00 AM | #10 (permalink) |
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Join Date: Aug 2010
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What CGY750's are failing? Never heard of it myself.
And if you jump ship, now's a bad time. Wait until the MSH brain and Spartan FBL units have been released and evaluated first.
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Beam E4 Formerly owned - Compass 7HV - Blade mCP X V2 - Blade 400 FBL BeastX |
05-29-2012, 10:01 AM | #11 (permalink) |
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Before I buy one of your 750s - what cases have you seen?
I'm not seeing any online yet...
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Synergy N5c YS56, CGY750 Gaui X5 Vbar MSH Protos Vbar Blade 130X |
05-29-2012, 10:46 AM | #12 (permalink) |
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only failure mode I had was cooked servos. that combined with how it flew was enough for me to toss it.
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Greg MSH USA Heli Flight Team Mikado V Team Lynx |
05-29-2012, 02:10 PM | #14 (permalink) |
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align DS510s on cyclic running less then 6V.
moral of the story is that you can cook your cyclic servos with the "head response" parameter. you have to make sure your servo temps are OK. in the first iterations of the firmware it was not user settable, and in the 2nd iteration they turned it up. which is when I had my failure. this is a quote from the firmware release for the third iteration of firmware. which was released a week after my issue failure. Head response "This selects the matching of the head response and gyro operation. The value 1 is the selection of fastest response. In case of a slower head response or slower swash servos, the performance can be improved by increasing the response value, more gyro gain can be obtained and the servo power consumption can be reduced. The servos will be cool down."
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Greg MSH USA Heli Flight Team Mikado V Team Lynx |
05-29-2012, 02:39 PM | #15 (permalink) | |
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Sorry about you fried up servos. I almost did the same with my 8717's. I think they just gave that function a bad name.
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05-30-2012, 08:19 AM | #16 (permalink) |
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Mine works just fine and it was one of the first off the boat from Japan.
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06-01-2012, 07:29 PM | #17 (permalink) |
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+1
Then the 1.2 version is good for me too.
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Hirobo Evo .50/Futaba 9C/OS 50 Hyper & Hatori/Radix/GV1/GY401&9254/9252s/Arizona Heli Canopy Trex 500 FBL/Futaba 8FGS/CGY750/CC ICE 75 & Scorp 1400 16T/Radix/9650s/9256 Trex 450 Pro/Futaba 8FGS/450M 14T/TP Blades/ 3156s/ Futaba GY520&9257 |
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