Tail blow out 600N

[DaveMac]

Hello,

I have an annoying problem where the tail is blowing out on fast backwards circuits on my 600N. It also generally has the feeling of not being totally locked in, when I do a backwards fly past the tail wags slightly.

It's really holding me back as i'm losing confidence in it. I'm using standard align tail blades and ds650 servo. I'm hoping someone with a similar setup could share there settings including the distance from ball to servo centre. I've tried a few things already including raising gain to point it wags and set it up to hover in rate mode etc. I've read larger tail blades can help but I don' t know if I can run them and also don't think I should need to.

Thanks,
Dave

[tonystevens]

Had a similar problem with my 700. beast x and ds650, went out a hole on the horn and it sorted it

[LaurenceGough]

Does it wag fast sometimes? If so that should mean that your gain is high enough and the blowouts are related to something else.

When you remove the tail rod from the tail servo horn is your tail rod movement smooth (almost no resistance)? Are the tail servo limits set fully to each end of the tail shaft?

It might be worth while taking apart your tail grips to make sure the thrust bearings are greased and the correct way around.

It could also be vibrations upsetting the beast x, how is it mounted, but if cyclic feels ok this isn't as likely.

[waveydavey]

A real silly question, you're not bogging the head a bit are you. My 600 has let go in the past but only due to my ham fisted attempts. Ball to servo is 11mm, I set mine up by adjusting tail mechanically then resetting the limits. Set piro speed so equal by eye either side then set my gain like you fast backwards and backwards loops until wah wah stopped Set heading lock piroing in ff and increasing until it went round reasonably without whipping then set dynamic up a bit to help stops.

It's good, not the best and I think the Fusion on the AR7200 is better. But doesn't lose the plot unless I cause it to.

[DaveMac]

Thanks for all the suggestions. I'm confident tail bearings are fine. Think it's more a setting, travel issue. I have never been happy with the natural play in the tail linkage, I do have a 600 le v2 with the carbon rods but it crashed and I can't find the spares.

I'll report back when I get to test it again. If rain goes off!

[barney]

The std 95mm tails and a reasonable Headspeed (1900+) with a suitably set gyro should be pretty solid.

If all was good previously and nothing else has changed its very likely a mechanical problem, so look very carefully at the Tail boom clamp or the boom stay ends for the slightest movement as they are prone to working loose from the stay itself. Any movement here would give the symptoms described.

As for Gyro setup, If your tail servo horn is overly long you wont get enough gyro gain to hold under heavier loads. About 12mm on the 600's is optimal.

Brian