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360CFX Blade 360 CFX Helicopters Information and Help

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  • 1 Post By mingledorffw
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Old 10-03-2018, 02:44 PM   #1 (permalink)
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Default 360 CFX Trio aggressive Bail Out helped me crash?

Just finished rebuilding my 360 CFX Trio after a crash which I believe was caused by a too aggressive Bail Out Rescue Mode of the AR7210BX (purchased additional feature). I had used Bail Out with Collective successfully 10's of times before, either for testing or actually needing help getting out of trouble. Those previous times have all been used in upright orientation. Just before the crash I was practicing slow inverted circuits and became disoriented. No problem, just hit my Bail Out button to flip the heli upright. Instead, I hear a crunch and the heli falls out of the sky. As it impacts I activate throttle hold (practiced doing that with the 230s ).

Close inspection revealed one blade grip arm tweaked, stripped main gear, broken tail pitch slider, cracked tail pulley, and all three cyclic servos are stripped. Got the heli repaired and flying better than ever, but now I have no faith in Bail Out. I'm thinking I need to tame down the aggressiveness of SAFE per the AR7210BX manual section "Fine Tuning SAFE Technology". What do you think? Could an aggressive Bail Out strip the servos? Did I put too much faith in Bail Out?
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Old 10-05-2018, 07:12 AM   #2 (permalink)
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Sorry about your crash. Honestly I don't know much about bailout. I'm actually scared to use it for what you just described, something going crazy. I have bailout on my fusion 270 but I'm so used to trying my best to get out of something bad and last resort hit throttle hold, my throttle hold reflex Is pretty good. I'm not knocking bailout at all, just saying starting out learning without it, im not used to it, and the idea of hitting a button and hoping it does the right thing makes me nervous. Do you think it's possible the loud crunch was your gear stripping for some reason? Do you have the AR7210bx controlling your governor? If so, could it have spiked up the throttle to hard, to fast, stripping the gear.
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Old 07-21-2019, 05:40 PM   #3 (permalink)
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It sounds to me like your servo limits were too high, allowing the automatic inputs from the ar7210 to cause a tail boom strike.

If you give the flybarless controller too much cyclic limit, when it goes to aggressively flip the heli the main blades can flex too far and actually impact the tail boom. Usually those crashes have a rather spectacular explosion of parts mid air.

Could be other things, but just my 2 cents based on your story.

Try turning down the limits allowed for your “cyclic ring” it’s called in some flybarless setups, not sure exactly what the setting is called in the 7210.

Cheers to rebuilding, we all do it.
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