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HelicopterFlybarless Rotor Head SystemsAlign 3G › Aerobatic Auto's
02-19-2011 07:12 PM  6 years agoPost 1
MJA

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UK

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I've been flying the Trex600 and Trex700 flybarless for most of last year.I have done lots of standard auto's with both machines and got used to the flare touchdown in auto's (compared to flybarred).Yesterday i started to get more adventurous with the 700 and did some roll to inverted, descend ,then roll out auto's,plus a few pushover recovery from inverted ones.

I was careful to use only small cyclic inputs to conserve as much headspeed as possible during roll or flip and also not to over control cyclic inputs being flybarless.Impressed with how well it conserved headspeed (compared to flybar) i tried two rolls on the way down.On the second recovery to upright all looked well initially but then the heli just dropped its nose quite quickly to straight down,headspeed decayed to nothing and it went in from about 50feet.It was almost as if i'd pushed forward cyclic in ,but i knew i hadn't

Is this something to do with the way flybarless sensors sometimes try to cope with a low rotorspeed and overcompensate, or just pilot error as i might have lost too much rotor rpm after second roll?
I don't understand why it tucked nose down though when heli was level after second roll.Also there was a slight delay after it was back upright before it dropped the nose

Martin

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