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HomeAircraftHelicopterBeginners Corner › Vbar pitch oscillation in FFF
09-15-2017 02:09 AM  11 months agoPost 1
Big Dave 365

rrNovice

IL

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I have a 450 heli with a Vbar.

Seems to fly fine, however, when flying very fast in FF, it develops a slow (2 cps) pitch oscillation.

Any ideas what might cause this?

Thanks,

-Dave

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09-15-2017 02:15 PM  11 months agoPost 2
Ladymagic

rrKey Veteran

South Korea

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Without knowing more details about your setup, it sounds like your pitch gain is set too high. Try adjusting your gain down a few points and see if that helps.

Mellisa

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09-15-2017 06:34 PM  11 months agoPost 3
Flyin for Jesus

rrVeteran

Troy, IL. 62294

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I have a 450 that does the same so I did some searching since it will benefit us both. From the looks of it, almost all have been fixed with just using different blades. I'm running the stock Align 325 blades and read another thread where they were using the same. They bought Edge blades and problem was solved.
Edge is out of business so maybe Switch blades will do the trick????

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09-17-2017 03:47 PM  11 months agoPost 4
Big Dave 365

rrNovice

IL

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I tried dropping down the pitch gain and it seems to have worked. No pitch change at all.

Thanks!

-Dave

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09-18-2017 04:07 PM  11 months agoPost 5
Ladymagic

rrKey Veteran

South Korea

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I'm glad that helped you out. Just remember when it comes to tuning a heli, start with the simplest most direct solution first.

....just changing blades would not have solved your problem as much as it would have masked it. Learning how to adjust your FBL controller to get the best performance will ensure your heli flies well under any circumstance with no surprises.

Have fun

Mellisa

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12-01-2017 05:02 PM  8 months agoPost 6
NealXu

rrNewbie

New York,USA

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Hi...i am a new user here. I will suggest position the Antennas in a way that the left antenna part of the Satellite is pointing free into the air. Take car that there is no metal or carbon in a radius of about 5 cm of the antenna. The right antenna part is ground, so this does not matter very much.

pcb assembly

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