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130X Blade 130X Helicopters Information and Help


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Old 06-22-2019, 07:31 AM   #21 (permalink)
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I just happened to be flying my 130X last night and wouldn't you know I started to have some tail blow out. My gears were also fine. I ended up narrowing down the problem. The screw which holds the bevel gear on the main shaft had come loose. It allowed for just enough play that when the heli got some hard collective that the tail would lag behind. Tightened it back up and it was flying perfect again. Just thought I'd share since it could be another culprit for TBO.
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Old 06-24-2019, 10:39 AM   #22 (permalink)
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Default DS76T fanboi here

For what it's worth, one of my 130Xs (MH rotary frame and cyclical servos, Lynx motor and tail, DS35 tail servo) has developed a weird tail wag that I could not dial out. The wag was mild, no blowouts, but I could not get rid of it.

I tried all my own suggestions, swapped in a fresh main gear, oiled bearings, made sure that the tail pitch assembly was working as smooth as glass, played with gear mesh, increased and decreased gyro gains, noted where and under what conditions the wag seemed better or worse. I could make marginal improvements but I still could not make it go away.

The seeming lack of stability also made aerobatics unpleasant and unpredictable. Finally, after a crash, I swapped in a DS76T that I had lying around. I only did this as a last resort, since I hate "bandaid" solutions, swapping or upgrading parts in an attempt to mask poor setup.

Presto! Tag wag gone. Bye bye. Just like magic. Tail locked in like prison.

But what really surprised me was that the heli had much more power, speed and pop after the swap, in spite of carrying around a heavier tail servo. Maybe this is my imagination, but it was a huge and unexpected difference, and I am not 100% sure why that would be.

Anyway, thank you to Chris1683 for first turning me on to the DS76T. JonJet, you can add another success story for your DS76T evangelism campaign.

I gotta get on the 'Bay and order me some more of these DS76Ts....
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Last edited by Mrowka; 06-24-2019 at 01:52 PM..
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