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HomeAircraftHelicopterHelicopter Main Discussion › Helicommand Rigid - Un-commanded Roll
04-23-2009 05:41 AM  9 years agoPost 1
sean911sc

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San Diego

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I was looking forward to flying after work today and testing out the HC Rigid on my Vario 4-blade. Flying around the park instead of hovering. All seemed fine with warm-up, hovering, and sideways. As I was just getting into moving around – I advance the slider (as on initial test session) then shortly after the helicopter rolled hard left, recovered, then again and recovered. I immediately disabled gain (slider) while maintaining some sense of control and landed. Ok, we all know the feeling when we recover from an unexplained event that could have had a completely different outcome. What just happened?

Now the troubleshooting - Factory reset and reload known good setup. Now on initial takeoff attempt helicopter wants to veer left (wasn’t doing this on prior flights). I discover that HC doesn’t correct for given roll movements. HC does correct for pitch movements. Even after factory reset with and rigid mode disabled – no roll corrections from HC (unit powers up normal).

I always look at the positive. The hardware wasn’t installed in the scale fuselage.

EDIT: Sensor covered

William S Harris

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04-23-2009 08:24 AM  9 years agoPost 2
Dappe Bronco

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Belgium

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Any possibility that the sensor on the underside of the HC got to "see" exhaust smoke due to the wind? If this happens, if exhaust smoke passes in front of the little window, the HC may think it is moving sideways and try to correct with a (violent, depending on speed of smoke and settings) roll.

...ask me how i know...

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05-27-2009 05:31 AM  9 years agoPost 3
sean911sc

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San Diego

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No - the roll sensor failed. Unit replaced by Captron

William S Harris

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